1 |
commit: 56e69a84070c5284582a1a12b7670397aaa78c7e |
2 |
Author: Mike Pagano <mpagano <AT> gentoo <DOT> org> |
3 |
AuthorDate: Tue Dec 15 11:16:50 2015 +0000 |
4 |
Commit: Mike Pagano <mpagano <AT> gentoo <DOT> org> |
5 |
CommitDate: Tue Dec 15 11:16:50 2015 +0000 |
6 |
URL: https://gitweb.gentoo.org/proj/linux-patches.git/commit/?id=56e69a84 |
7 |
|
8 |
Linux patch 4.1.15 |
9 |
|
10 |
0000_README | 4 + |
11 |
1014_linux-4.1.15.patch | 2619 +++++++++++++++++++++++++++++++++++++++++++++++ |
12 |
2 files changed, 2623 insertions(+) |
13 |
|
14 |
diff --git a/0000_README b/0000_README |
15 |
index bb7a9d9..2294ce5 100644 |
16 |
--- a/0000_README |
17 |
+++ b/0000_README |
18 |
@@ -99,6 +99,10 @@ Patch: 1013_linux-4.1.14.patch |
19 |
From: http://www.kernel.org |
20 |
Desc: Linux 4.1.14 |
21 |
|
22 |
+Patch: 1014_linux-4.1.15.patch |
23 |
+From: http://www.kernel.org |
24 |
+Desc: Linux 4.1.15 |
25 |
+ |
26 |
Patch: 1500_XATTR_USER_PREFIX.patch |
27 |
From: https://bugs.gentoo.org/show_bug.cgi?id=470644 |
28 |
Desc: Support for namespace user.pax.* on tmpfs. |
29 |
|
30 |
diff --git a/1014_linux-4.1.15.patch b/1014_linux-4.1.15.patch |
31 |
new file mode 100644 |
32 |
index 0000000..114781b |
33 |
--- /dev/null |
34 |
+++ b/1014_linux-4.1.15.patch |
35 |
@@ -0,0 +1,2619 @@ |
36 |
+diff --git a/Makefile b/Makefile |
37 |
+index 091280d66452..cf35f6bcffd8 100644 |
38 |
+--- a/Makefile |
39 |
++++ b/Makefile |
40 |
+@@ -1,6 +1,6 @@ |
41 |
+ VERSION = 4 |
42 |
+ PATCHLEVEL = 1 |
43 |
+-SUBLEVEL = 14 |
44 |
++SUBLEVEL = 15 |
45 |
+ EXTRAVERSION = |
46 |
+ NAME = Series 4800 |
47 |
+ |
48 |
+diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c |
49 |
+index 1ec6441fe2a5..09138ceba046 100644 |
50 |
+--- a/drivers/block/rbd.c |
51 |
++++ b/drivers/block/rbd.c |
52 |
+@@ -3417,6 +3417,7 @@ static void rbd_queue_workfn(struct work_struct *work) |
53 |
+ goto err_rq; |
54 |
+ } |
55 |
+ img_request->rq = rq; |
56 |
++ snapc = NULL; /* img_request consumes a ref */ |
57 |
+ |
58 |
+ if (op_type == OBJ_OP_DISCARD) |
59 |
+ result = rbd_img_request_fill(img_request, OBJ_REQUEST_NODATA, |
60 |
+diff --git a/drivers/firewire/ohci.c b/drivers/firewire/ohci.c |
61 |
+index f51d376d10ba..c2f5117fd8cb 100644 |
62 |
+--- a/drivers/firewire/ohci.c |
63 |
++++ b/drivers/firewire/ohci.c |
64 |
+@@ -3675,6 +3675,11 @@ static int pci_probe(struct pci_dev *dev, |
65 |
+ |
66 |
+ reg_write(ohci, OHCI1394_IsoXmitIntMaskSet, ~0); |
67 |
+ ohci->it_context_support = reg_read(ohci, OHCI1394_IsoXmitIntMaskSet); |
68 |
++ /* JMicron JMB38x often shows 0 at first read, just ignore it */ |
69 |
++ if (!ohci->it_context_support) { |
70 |
++ ohci_notice(ohci, "overriding IsoXmitIntMask\n"); |
71 |
++ ohci->it_context_support = 0xf; |
72 |
++ } |
73 |
+ reg_write(ohci, OHCI1394_IsoXmitIntMaskClear, ~0); |
74 |
+ ohci->it_context_mask = ohci->it_context_support; |
75 |
+ ohci->n_it = hweight32(ohci->it_context_mask); |
76 |
+diff --git a/drivers/net/phy/broadcom.c b/drivers/net/phy/broadcom.c |
77 |
+index 9c71295f2fef..85e640440bd9 100644 |
78 |
+--- a/drivers/net/phy/broadcom.c |
79 |
++++ b/drivers/net/phy/broadcom.c |
80 |
+@@ -675,7 +675,7 @@ static struct mdio_device_id __maybe_unused broadcom_tbl[] = { |
81 |
+ { PHY_ID_BCM5461, 0xfffffff0 }, |
82 |
+ { PHY_ID_BCM54616S, 0xfffffff0 }, |
83 |
+ { PHY_ID_BCM5464, 0xfffffff0 }, |
84 |
+- { PHY_ID_BCM5482, 0xfffffff0 }, |
85 |
++ { PHY_ID_BCM5481, 0xfffffff0 }, |
86 |
+ { PHY_ID_BCM5482, 0xfffffff0 }, |
87 |
+ { PHY_ID_BCM50610, 0xfffffff0 }, |
88 |
+ { PHY_ID_BCM50610M, 0xfffffff0 }, |
89 |
+diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c |
90 |
+index 4e0470d396a3..71190dc1eacf 100644 |
91 |
+--- a/drivers/net/usb/qmi_wwan.c |
92 |
++++ b/drivers/net/usb/qmi_wwan.c |
93 |
+@@ -774,6 +774,7 @@ static const struct usb_device_id products[] = { |
94 |
+ {QMI_FIXED_INTF(0x2357, 0x9000, 4)}, /* TP-LINK MA260 */ |
95 |
+ {QMI_FIXED_INTF(0x1bc7, 0x1200, 5)}, /* Telit LE920 */ |
96 |
+ {QMI_FIXED_INTF(0x1bc7, 0x1201, 2)}, /* Telit LE920 */ |
97 |
++ {QMI_FIXED_INTF(0x1c9e, 0x9b01, 3)}, /* XS Stick W100-2 from 4G Systems */ |
98 |
+ {QMI_FIXED_INTF(0x0b3c, 0xc000, 4)}, /* Olivetti Olicard 100 */ |
99 |
+ {QMI_FIXED_INTF(0x0b3c, 0xc001, 4)}, /* Olivetti Olicard 120 */ |
100 |
+ {QMI_FIXED_INTF(0x0b3c, 0xc002, 4)}, /* Olivetti Olicard 140 */ |
101 |
+diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c |
102 |
+index b072e17479aa..2b0d84d32db4 100644 |
103 |
+--- a/fs/btrfs/file.c |
104 |
++++ b/fs/btrfs/file.c |
105 |
+@@ -756,8 +756,16 @@ next_slot: |
106 |
+ } |
107 |
+ |
108 |
+ btrfs_item_key_to_cpu(leaf, &key, path->slots[0]); |
109 |
+- if (key.objectid > ino || |
110 |
+- key.type > BTRFS_EXTENT_DATA_KEY || key.offset >= end) |
111 |
++ |
112 |
++ if (key.objectid > ino) |
113 |
++ break; |
114 |
++ if (WARN_ON_ONCE(key.objectid < ino) || |
115 |
++ key.type < BTRFS_EXTENT_DATA_KEY) { |
116 |
++ ASSERT(del_nr == 0); |
117 |
++ path->slots[0]++; |
118 |
++ goto next_slot; |
119 |
++ } |
120 |
++ if (key.type > BTRFS_EXTENT_DATA_KEY || key.offset >= end) |
121 |
+ break; |
122 |
+ |
123 |
+ fi = btrfs_item_ptr(leaf, path->slots[0], |
124 |
+@@ -776,8 +784,8 @@ next_slot: |
125 |
+ btrfs_file_extent_inline_len(leaf, |
126 |
+ path->slots[0], fi); |
127 |
+ } else { |
128 |
+- WARN_ON(1); |
129 |
+- extent_end = search_start; |
130 |
++ /* can't happen */ |
131 |
++ BUG(); |
132 |
+ } |
133 |
+ |
134 |
+ /* |
135 |
+diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c |
136 |
+index e3b39f0c4666..5136c73b3dce 100644 |
137 |
+--- a/fs/btrfs/inode.c |
138 |
++++ b/fs/btrfs/inode.c |
139 |
+@@ -1294,8 +1294,14 @@ next_slot: |
140 |
+ num_bytes = 0; |
141 |
+ btrfs_item_key_to_cpu(leaf, &found_key, path->slots[0]); |
142 |
+ |
143 |
+- if (found_key.objectid > ino || |
144 |
+- found_key.type > BTRFS_EXTENT_DATA_KEY || |
145 |
++ if (found_key.objectid > ino) |
146 |
++ break; |
147 |
++ if (WARN_ON_ONCE(found_key.objectid < ino) || |
148 |
++ found_key.type < BTRFS_EXTENT_DATA_KEY) { |
149 |
++ path->slots[0]++; |
150 |
++ goto next_slot; |
151 |
++ } |
152 |
++ if (found_key.type > BTRFS_EXTENT_DATA_KEY || |
153 |
+ found_key.offset > end) |
154 |
+ break; |
155 |
+ |
156 |
+@@ -4184,6 +4190,47 @@ static int truncate_space_check(struct btrfs_trans_handle *trans, |
157 |
+ |
158 |
+ } |
159 |
+ |
160 |
++static int truncate_inline_extent(struct inode *inode, |
161 |
++ struct btrfs_path *path, |
162 |
++ struct btrfs_key *found_key, |
163 |
++ const u64 item_end, |
164 |
++ const u64 new_size) |
165 |
++{ |
166 |
++ struct extent_buffer *leaf = path->nodes[0]; |
167 |
++ int slot = path->slots[0]; |
168 |
++ struct btrfs_file_extent_item *fi; |
169 |
++ u32 size = (u32)(new_size - found_key->offset); |
170 |
++ struct btrfs_root *root = BTRFS_I(inode)->root; |
171 |
++ |
172 |
++ fi = btrfs_item_ptr(leaf, slot, struct btrfs_file_extent_item); |
173 |
++ |
174 |
++ if (btrfs_file_extent_compression(leaf, fi) != BTRFS_COMPRESS_NONE) { |
175 |
++ loff_t offset = new_size; |
176 |
++ loff_t page_end = ALIGN(offset, PAGE_CACHE_SIZE); |
177 |
++ |
178 |
++ /* |
179 |
++ * Zero out the remaining of the last page of our inline extent, |
180 |
++ * instead of directly truncating our inline extent here - that |
181 |
++ * would be much more complex (decompressing all the data, then |
182 |
++ * compressing the truncated data, which might be bigger than |
183 |
++ * the size of the inline extent, resize the extent, etc). |
184 |
++ * We release the path because to get the page we might need to |
185 |
++ * read the extent item from disk (data not in the page cache). |
186 |
++ */ |
187 |
++ btrfs_release_path(path); |
188 |
++ return btrfs_truncate_page(inode, offset, page_end - offset, 0); |
189 |
++ } |
190 |
++ |
191 |
++ btrfs_set_file_extent_ram_bytes(leaf, fi, size); |
192 |
++ size = btrfs_file_extent_calc_inline_size(size); |
193 |
++ btrfs_truncate_item(root, path, size, 1); |
194 |
++ |
195 |
++ if (test_bit(BTRFS_ROOT_REF_COWS, &root->state)) |
196 |
++ inode_sub_bytes(inode, item_end + 1 - new_size); |
197 |
++ |
198 |
++ return 0; |
199 |
++} |
200 |
++ |
201 |
+ /* |
202 |
+ * this can truncate away extent items, csum items and directory items. |
203 |
+ * It starts at a high offset and removes keys until it can't find |
204 |
+@@ -4378,27 +4425,40 @@ search_again: |
205 |
+ * special encodings |
206 |
+ */ |
207 |
+ if (!del_item && |
208 |
+- btrfs_file_extent_compression(leaf, fi) == 0 && |
209 |
+ btrfs_file_extent_encryption(leaf, fi) == 0 && |
210 |
+ btrfs_file_extent_other_encoding(leaf, fi) == 0) { |
211 |
+- u32 size = new_size - found_key.offset; |
212 |
+- |
213 |
+- if (test_bit(BTRFS_ROOT_REF_COWS, &root->state)) |
214 |
+- inode_sub_bytes(inode, item_end + 1 - |
215 |
+- new_size); |
216 |
+ |
217 |
+ /* |
218 |
+- * update the ram bytes to properly reflect |
219 |
+- * the new size of our item |
220 |
++ * Need to release path in order to truncate a |
221 |
++ * compressed extent. So delete any accumulated |
222 |
++ * extent items so far. |
223 |
+ */ |
224 |
+- btrfs_set_file_extent_ram_bytes(leaf, fi, size); |
225 |
+- size = |
226 |
+- btrfs_file_extent_calc_inline_size(size); |
227 |
+- btrfs_truncate_item(root, path, size, 1); |
228 |
++ if (btrfs_file_extent_compression(leaf, fi) != |
229 |
++ BTRFS_COMPRESS_NONE && pending_del_nr) { |
230 |
++ err = btrfs_del_items(trans, root, path, |
231 |
++ pending_del_slot, |
232 |
++ pending_del_nr); |
233 |
++ if (err) { |
234 |
++ btrfs_abort_transaction(trans, |
235 |
++ root, |
236 |
++ err); |
237 |
++ goto error; |
238 |
++ } |
239 |
++ pending_del_nr = 0; |
240 |
++ } |
241 |
++ |
242 |
++ err = truncate_inline_extent(inode, path, |
243 |
++ &found_key, |
244 |
++ item_end, |
245 |
++ new_size); |
246 |
++ if (err) { |
247 |
++ btrfs_abort_transaction(trans, |
248 |
++ root, err); |
249 |
++ goto error; |
250 |
++ } |
251 |
+ } else if (test_bit(BTRFS_ROOT_REF_COWS, |
252 |
+ &root->state)) { |
253 |
+- inode_sub_bytes(inode, item_end + 1 - |
254 |
+- found_key.offset); |
255 |
++ inode_sub_bytes(inode, item_end + 1 - new_size); |
256 |
+ } |
257 |
+ } |
258 |
+ delete: |
259 |
+diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c |
260 |
+index 8b2c82ce36b3..87c720865ebf 100644 |
261 |
+--- a/fs/btrfs/ioctl.c |
262 |
++++ b/fs/btrfs/ioctl.c |
263 |
+@@ -3166,6 +3166,150 @@ static void clone_update_extent_map(struct inode *inode, |
264 |
+ &BTRFS_I(inode)->runtime_flags); |
265 |
+ } |
266 |
+ |
267 |
++/* |
268 |
++ * Make sure we do not end up inserting an inline extent into a file that has |
269 |
++ * already other (non-inline) extents. If a file has an inline extent it can |
270 |
++ * not have any other extents and the (single) inline extent must start at the |
271 |
++ * file offset 0. Failing to respect these rules will lead to file corruption, |
272 |
++ * resulting in EIO errors on read/write operations, hitting BUG_ON's in mm, etc |
273 |
++ * |
274 |
++ * We can have extents that have been already written to disk or we can have |
275 |
++ * dirty ranges still in delalloc, in which case the extent maps and items are |
276 |
++ * created only when we run delalloc, and the delalloc ranges might fall outside |
277 |
++ * the range we are currently locking in the inode's io tree. So we check the |
278 |
++ * inode's i_size because of that (i_size updates are done while holding the |
279 |
++ * i_mutex, which we are holding here). |
280 |
++ * We also check to see if the inode has a size not greater than "datal" but has |
281 |
++ * extents beyond it, due to an fallocate with FALLOC_FL_KEEP_SIZE (and we are |
282 |
++ * protected against such concurrent fallocate calls by the i_mutex). |
283 |
++ * |
284 |
++ * If the file has no extents but a size greater than datal, do not allow the |
285 |
++ * copy because we would need turn the inline extent into a non-inline one (even |
286 |
++ * with NO_HOLES enabled). If we find our destination inode only has one inline |
287 |
++ * extent, just overwrite it with the source inline extent if its size is less |
288 |
++ * than the source extent's size, or we could copy the source inline extent's |
289 |
++ * data into the destination inode's inline extent if the later is greater then |
290 |
++ * the former. |
291 |
++ */ |
292 |
++static int clone_copy_inline_extent(struct inode *src, |
293 |
++ struct inode *dst, |
294 |
++ struct btrfs_trans_handle *trans, |
295 |
++ struct btrfs_path *path, |
296 |
++ struct btrfs_key *new_key, |
297 |
++ const u64 drop_start, |
298 |
++ const u64 datal, |
299 |
++ const u64 skip, |
300 |
++ const u64 size, |
301 |
++ char *inline_data) |
302 |
++{ |
303 |
++ struct btrfs_root *root = BTRFS_I(dst)->root; |
304 |
++ const u64 aligned_end = ALIGN(new_key->offset + datal, |
305 |
++ root->sectorsize); |
306 |
++ int ret; |
307 |
++ struct btrfs_key key; |
308 |
++ |
309 |
++ if (new_key->offset > 0) |
310 |
++ return -EOPNOTSUPP; |
311 |
++ |
312 |
++ key.objectid = btrfs_ino(dst); |
313 |
++ key.type = BTRFS_EXTENT_DATA_KEY; |
314 |
++ key.offset = 0; |
315 |
++ ret = btrfs_search_slot(NULL, root, &key, path, 0, 0); |
316 |
++ if (ret < 0) { |
317 |
++ return ret; |
318 |
++ } else if (ret > 0) { |
319 |
++ if (path->slots[0] >= btrfs_header_nritems(path->nodes[0])) { |
320 |
++ ret = btrfs_next_leaf(root, path); |
321 |
++ if (ret < 0) |
322 |
++ return ret; |
323 |
++ else if (ret > 0) |
324 |
++ goto copy_inline_extent; |
325 |
++ } |
326 |
++ btrfs_item_key_to_cpu(path->nodes[0], &key, path->slots[0]); |
327 |
++ if (key.objectid == btrfs_ino(dst) && |
328 |
++ key.type == BTRFS_EXTENT_DATA_KEY) { |
329 |
++ ASSERT(key.offset > 0); |
330 |
++ return -EOPNOTSUPP; |
331 |
++ } |
332 |
++ } else if (i_size_read(dst) <= datal) { |
333 |
++ struct btrfs_file_extent_item *ei; |
334 |
++ u64 ext_len; |
335 |
++ |
336 |
++ /* |
337 |
++ * If the file size is <= datal, make sure there are no other |
338 |
++ * extents following (can happen do to an fallocate call with |
339 |
++ * the flag FALLOC_FL_KEEP_SIZE). |
340 |
++ */ |
341 |
++ ei = btrfs_item_ptr(path->nodes[0], path->slots[0], |
342 |
++ struct btrfs_file_extent_item); |
343 |
++ /* |
344 |
++ * If it's an inline extent, it can not have other extents |
345 |
++ * following it. |
346 |
++ */ |
347 |
++ if (btrfs_file_extent_type(path->nodes[0], ei) == |
348 |
++ BTRFS_FILE_EXTENT_INLINE) |
349 |
++ goto copy_inline_extent; |
350 |
++ |
351 |
++ ext_len = btrfs_file_extent_num_bytes(path->nodes[0], ei); |
352 |
++ if (ext_len > aligned_end) |
353 |
++ return -EOPNOTSUPP; |
354 |
++ |
355 |
++ ret = btrfs_next_item(root, path); |
356 |
++ if (ret < 0) { |
357 |
++ return ret; |
358 |
++ } else if (ret == 0) { |
359 |
++ btrfs_item_key_to_cpu(path->nodes[0], &key, |
360 |
++ path->slots[0]); |
361 |
++ if (key.objectid == btrfs_ino(dst) && |
362 |
++ key.type == BTRFS_EXTENT_DATA_KEY) |
363 |
++ return -EOPNOTSUPP; |
364 |
++ } |
365 |
++ } |
366 |
++ |
367 |
++copy_inline_extent: |
368 |
++ /* |
369 |
++ * We have no extent items, or we have an extent at offset 0 which may |
370 |
++ * or may not be inlined. All these cases are dealt the same way. |
371 |
++ */ |
372 |
++ if (i_size_read(dst) > datal) { |
373 |
++ /* |
374 |
++ * If the destination inode has an inline extent... |
375 |
++ * This would require copying the data from the source inline |
376 |
++ * extent into the beginning of the destination's inline extent. |
377 |
++ * But this is really complex, both extents can be compressed |
378 |
++ * or just one of them, which would require decompressing and |
379 |
++ * re-compressing data (which could increase the new compressed |
380 |
++ * size, not allowing the compressed data to fit anymore in an |
381 |
++ * inline extent). |
382 |
++ * So just don't support this case for now (it should be rare, |
383 |
++ * we are not really saving space when cloning inline extents). |
384 |
++ */ |
385 |
++ return -EOPNOTSUPP; |
386 |
++ } |
387 |
++ |
388 |
++ btrfs_release_path(path); |
389 |
++ ret = btrfs_drop_extents(trans, root, dst, drop_start, aligned_end, 1); |
390 |
++ if (ret) |
391 |
++ return ret; |
392 |
++ ret = btrfs_insert_empty_item(trans, root, path, new_key, size); |
393 |
++ if (ret) |
394 |
++ return ret; |
395 |
++ |
396 |
++ if (skip) { |
397 |
++ const u32 start = btrfs_file_extent_calc_inline_size(0); |
398 |
++ |
399 |
++ memmove(inline_data + start, inline_data + start + skip, datal); |
400 |
++ } |
401 |
++ |
402 |
++ write_extent_buffer(path->nodes[0], inline_data, |
403 |
++ btrfs_item_ptr_offset(path->nodes[0], |
404 |
++ path->slots[0]), |
405 |
++ size); |
406 |
++ inode_add_bytes(dst, datal); |
407 |
++ |
408 |
++ return 0; |
409 |
++} |
410 |
++ |
411 |
+ /** |
412 |
+ * btrfs_clone() - clone a range from inode file to another |
413 |
+ * |
414 |
+@@ -3432,21 +3576,6 @@ process_slot: |
415 |
+ } else if (type == BTRFS_FILE_EXTENT_INLINE) { |
416 |
+ u64 skip = 0; |
417 |
+ u64 trim = 0; |
418 |
+- u64 aligned_end = 0; |
419 |
+- |
420 |
+- /* |
421 |
+- * Don't copy an inline extent into an offset |
422 |
+- * greater than zero. Having an inline extent |
423 |
+- * at such an offset results in chaos as btrfs |
424 |
+- * isn't prepared for such cases. Just skip |
425 |
+- * this case for the same reasons as commented |
426 |
+- * at btrfs_ioctl_clone(). |
427 |
+- */ |
428 |
+- if (last_dest_end > 0) { |
429 |
+- ret = -EOPNOTSUPP; |
430 |
+- btrfs_end_transaction(trans, root); |
431 |
+- goto out; |
432 |
+- } |
433 |
+ |
434 |
+ if (off > key.offset) { |
435 |
+ skip = off - key.offset; |
436 |
+@@ -3464,42 +3593,22 @@ process_slot: |
437 |
+ size -= skip + trim; |
438 |
+ datal -= skip + trim; |
439 |
+ |
440 |
+- aligned_end = ALIGN(new_key.offset + datal, |
441 |
+- root->sectorsize); |
442 |
+- ret = btrfs_drop_extents(trans, root, inode, |
443 |
+- drop_start, |
444 |
+- aligned_end, |
445 |
+- 1); |
446 |
++ ret = clone_copy_inline_extent(src, inode, |
447 |
++ trans, path, |
448 |
++ &new_key, |
449 |
++ drop_start, |
450 |
++ datal, |
451 |
++ skip, size, buf); |
452 |
+ if (ret) { |
453 |
+ if (ret != -EOPNOTSUPP) |
454 |
+ btrfs_abort_transaction(trans, |
455 |
+- root, ret); |
456 |
+- btrfs_end_transaction(trans, root); |
457 |
+- goto out; |
458 |
+- } |
459 |
+- |
460 |
+- ret = btrfs_insert_empty_item(trans, root, path, |
461 |
+- &new_key, size); |
462 |
+- if (ret) { |
463 |
+- btrfs_abort_transaction(trans, root, |
464 |
+- ret); |
465 |
++ root, |
466 |
++ ret); |
467 |
+ btrfs_end_transaction(trans, root); |
468 |
+ goto out; |
469 |
+ } |
470 |
+- |
471 |
+- if (skip) { |
472 |
+- u32 start = |
473 |
+- btrfs_file_extent_calc_inline_size(0); |
474 |
+- memmove(buf+start, buf+start+skip, |
475 |
+- datal); |
476 |
+- } |
477 |
+- |
478 |
+ leaf = path->nodes[0]; |
479 |
+ slot = path->slots[0]; |
480 |
+- write_extent_buffer(leaf, buf, |
481 |
+- btrfs_item_ptr_offset(leaf, slot), |
482 |
+- size); |
483 |
+- inode_add_bytes(inode, datal); |
484 |
+ } |
485 |
+ |
486 |
+ /* If we have an implicit hole (NO_HOLES feature). */ |
487 |
+diff --git a/fs/btrfs/xattr.c b/fs/btrfs/xattr.c |
488 |
+index 6f518c90e1c1..1fcd7b6e7564 100644 |
489 |
+--- a/fs/btrfs/xattr.c |
490 |
++++ b/fs/btrfs/xattr.c |
491 |
+@@ -313,8 +313,10 @@ ssize_t btrfs_listxattr(struct dentry *dentry, char *buffer, size_t size) |
492 |
+ /* check to make sure this item is what we want */ |
493 |
+ if (found_key.objectid != key.objectid) |
494 |
+ break; |
495 |
+- if (found_key.type != BTRFS_XATTR_ITEM_KEY) |
496 |
++ if (found_key.type > BTRFS_XATTR_ITEM_KEY) |
497 |
+ break; |
498 |
++ if (found_key.type < BTRFS_XATTR_ITEM_KEY) |
499 |
++ goto next; |
500 |
+ |
501 |
+ di = btrfs_item_ptr(leaf, slot, struct btrfs_dir_item); |
502 |
+ if (verify_dir_item(root, leaf, di)) |
503 |
+diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c |
504 |
+index 84f37f34f9aa..1e99b29650a9 100644 |
505 |
+--- a/fs/ceph/mds_client.c |
506 |
++++ b/fs/ceph/mds_client.c |
507 |
+@@ -1905,7 +1905,7 @@ static struct ceph_msg *create_request_message(struct ceph_mds_client *mdsc, |
508 |
+ |
509 |
+ len = sizeof(*head) + |
510 |
+ pathlen1 + pathlen2 + 2*(1 + sizeof(u32) + sizeof(u64)) + |
511 |
+- sizeof(struct timespec); |
512 |
++ sizeof(struct ceph_timespec); |
513 |
+ |
514 |
+ /* calculate (max) length for cap releases */ |
515 |
+ len += sizeof(struct ceph_mds_request_release) * |
516 |
+diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c |
517 |
+index 12756040ca20..8bec8f1e4b31 100644 |
518 |
+--- a/fs/debugfs/inode.c |
519 |
++++ b/fs/debugfs/inode.c |
520 |
+@@ -276,8 +276,12 @@ static struct dentry *start_creating(const char *name, struct dentry *parent) |
521 |
+ dput(dentry); |
522 |
+ dentry = ERR_PTR(-EEXIST); |
523 |
+ } |
524 |
+- if (IS_ERR(dentry)) |
525 |
++ |
526 |
++ if (IS_ERR(dentry)) { |
527 |
+ mutex_unlock(&d_inode(parent)->i_mutex); |
528 |
++ simple_release_fs(&debugfs_mount, &debugfs_mount_count); |
529 |
++ } |
530 |
++ |
531 |
+ return dentry; |
532 |
+ } |
533 |
+ |
534 |
+diff --git a/fs/ext4/ext4_jbd2.c b/fs/ext4/ext4_jbd2.c |
535 |
+index d41843181818..e770c1ee4613 100644 |
536 |
+--- a/fs/ext4/ext4_jbd2.c |
537 |
++++ b/fs/ext4/ext4_jbd2.c |
538 |
+@@ -88,13 +88,13 @@ int __ext4_journal_stop(const char *where, unsigned int line, handle_t *handle) |
539 |
+ return 0; |
540 |
+ } |
541 |
+ |
542 |
++ err = handle->h_err; |
543 |
+ if (!handle->h_transaction) { |
544 |
+- err = jbd2_journal_stop(handle); |
545 |
+- return handle->h_err ? handle->h_err : err; |
546 |
++ rc = jbd2_journal_stop(handle); |
547 |
++ return err ? err : rc; |
548 |
+ } |
549 |
+ |
550 |
+ sb = handle->h_transaction->t_journal->j_private; |
551 |
+- err = handle->h_err; |
552 |
+ rc = jbd2_journal_stop(handle); |
553 |
+ |
554 |
+ if (!err) |
555 |
+diff --git a/fs/ext4/page-io.c b/fs/ext4/page-io.c |
556 |
+index 5765f88b3904..8082565c59a9 100644 |
557 |
+--- a/fs/ext4/page-io.c |
558 |
++++ b/fs/ext4/page-io.c |
559 |
+@@ -426,6 +426,7 @@ int ext4_bio_write_page(struct ext4_io_submit *io, |
560 |
+ struct buffer_head *bh, *head; |
561 |
+ int ret = 0; |
562 |
+ int nr_submitted = 0; |
563 |
++ int nr_to_submit = 0; |
564 |
+ |
565 |
+ blocksize = 1 << inode->i_blkbits; |
566 |
+ |
567 |
+@@ -478,11 +479,13 @@ int ext4_bio_write_page(struct ext4_io_submit *io, |
568 |
+ unmap_underlying_metadata(bh->b_bdev, bh->b_blocknr); |
569 |
+ } |
570 |
+ set_buffer_async_write(bh); |
571 |
++ nr_to_submit++; |
572 |
+ } while ((bh = bh->b_this_page) != head); |
573 |
+ |
574 |
+ bh = head = page_buffers(page); |
575 |
+ |
576 |
+- if (ext4_encrypted_inode(inode) && S_ISREG(inode->i_mode)) { |
577 |
++ if (ext4_encrypted_inode(inode) && S_ISREG(inode->i_mode) && |
578 |
++ nr_to_submit) { |
579 |
+ data_page = ext4_encrypt(inode, page); |
580 |
+ if (IS_ERR(data_page)) { |
581 |
+ ret = PTR_ERR(data_page); |
582 |
+diff --git a/fs/ext4/super.c b/fs/ext4/super.c |
583 |
+index ff89971e3ee0..8a3b9f14d198 100644 |
584 |
+--- a/fs/ext4/super.c |
585 |
++++ b/fs/ext4/super.c |
586 |
+@@ -396,9 +396,13 @@ static void ext4_handle_error(struct super_block *sb) |
587 |
+ smp_wmb(); |
588 |
+ sb->s_flags |= MS_RDONLY; |
589 |
+ } |
590 |
+- if (test_opt(sb, ERRORS_PANIC)) |
591 |
++ if (test_opt(sb, ERRORS_PANIC)) { |
592 |
++ if (EXT4_SB(sb)->s_journal && |
593 |
++ !(EXT4_SB(sb)->s_journal->j_flags & JBD2_REC_ERR)) |
594 |
++ return; |
595 |
+ panic("EXT4-fs (device %s): panic forced after error\n", |
596 |
+ sb->s_id); |
597 |
++ } |
598 |
+ } |
599 |
+ |
600 |
+ #define ext4_error_ratelimit(sb) \ |
601 |
+@@ -587,8 +591,12 @@ void __ext4_abort(struct super_block *sb, const char *function, |
602 |
+ jbd2_journal_abort(EXT4_SB(sb)->s_journal, -EIO); |
603 |
+ save_error_info(sb, function, line); |
604 |
+ } |
605 |
+- if (test_opt(sb, ERRORS_PANIC)) |
606 |
++ if (test_opt(sb, ERRORS_PANIC)) { |
607 |
++ if (EXT4_SB(sb)->s_journal && |
608 |
++ !(EXT4_SB(sb)->s_journal->j_flags & JBD2_REC_ERR)) |
609 |
++ return; |
610 |
+ panic("EXT4-fs panic from previous error\n"); |
611 |
++ } |
612 |
+ } |
613 |
+ |
614 |
+ void __ext4_msg(struct super_block *sb, |
615 |
+diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c |
616 |
+index 7003c0925760..0469f32918a5 100644 |
617 |
+--- a/fs/jbd2/journal.c |
618 |
++++ b/fs/jbd2/journal.c |
619 |
+@@ -2086,8 +2086,12 @@ static void __journal_abort_soft (journal_t *journal, int errno) |
620 |
+ |
621 |
+ __jbd2_journal_abort_hard(journal); |
622 |
+ |
623 |
+- if (errno) |
624 |
++ if (errno) { |
625 |
+ jbd2_journal_update_sb_errno(journal); |
626 |
++ write_lock(&journal->j_state_lock); |
627 |
++ journal->j_flags |= JBD2_REC_ERR; |
628 |
++ write_unlock(&journal->j_state_lock); |
629 |
++ } |
630 |
+ } |
631 |
+ |
632 |
+ /** |
633 |
+diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c |
634 |
+index 976ba792fbc6..7f22b6c6fb50 100644 |
635 |
+--- a/fs/nfs/inode.c |
636 |
++++ b/fs/nfs/inode.c |
637 |
+@@ -1813,7 +1813,11 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr) |
638 |
+ if ((long)fattr->gencount - (long)nfsi->attr_gencount > 0) |
639 |
+ nfsi->attr_gencount = fattr->gencount; |
640 |
+ } |
641 |
+- invalid &= ~NFS_INO_INVALID_ATTR; |
642 |
++ |
643 |
++ /* Don't declare attrcache up to date if there were no attrs! */ |
644 |
++ if (fattr->valid != 0) |
645 |
++ invalid &= ~NFS_INO_INVALID_ATTR; |
646 |
++ |
647 |
+ /* Don't invalidate the data if we were to blame */ |
648 |
+ if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) |
649 |
+ || S_ISLNK(inode->i_mode))) |
650 |
+diff --git a/fs/nfs/nfs4client.c b/fs/nfs/nfs4client.c |
651 |
+index e42be52a8c18..5dea913baf46 100644 |
652 |
+--- a/fs/nfs/nfs4client.c |
653 |
++++ b/fs/nfs/nfs4client.c |
654 |
+@@ -33,7 +33,7 @@ static int nfs_get_cb_ident_idr(struct nfs_client *clp, int minorversion) |
655 |
+ return ret; |
656 |
+ idr_preload(GFP_KERNEL); |
657 |
+ spin_lock(&nn->nfs_client_lock); |
658 |
+- ret = idr_alloc(&nn->cb_ident_idr, clp, 0, 0, GFP_NOWAIT); |
659 |
++ ret = idr_alloc(&nn->cb_ident_idr, clp, 1, 0, GFP_NOWAIT); |
660 |
+ if (ret >= 0) |
661 |
+ clp->cl_cb_ident = ret; |
662 |
+ spin_unlock(&nn->nfs_client_lock); |
663 |
+diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c |
664 |
+index 397798368b1a..bb6c324f1f3d 100644 |
665 |
+--- a/fs/nfsd/nfs4state.c |
666 |
++++ b/fs/nfsd/nfs4state.c |
667 |
+@@ -765,16 +765,68 @@ void nfs4_unhash_stid(struct nfs4_stid *s) |
668 |
+ s->sc_type = 0; |
669 |
+ } |
670 |
+ |
671 |
+-static void |
672 |
++/** |
673 |
++ * nfs4_get_existing_delegation - Discover if this delegation already exists |
674 |
++ * @clp: a pointer to the nfs4_client we're granting a delegation to |
675 |
++ * @fp: a pointer to the nfs4_file we're granting a delegation on |
676 |
++ * |
677 |
++ * Return: |
678 |
++ * On success: NULL if an existing delegation was not found. |
679 |
++ * |
680 |
++ * On error: -EAGAIN if one was previously granted to this nfs4_client |
681 |
++ * for this nfs4_file. |
682 |
++ * |
683 |
++ */ |
684 |
++ |
685 |
++static int |
686 |
++nfs4_get_existing_delegation(struct nfs4_client *clp, struct nfs4_file *fp) |
687 |
++{ |
688 |
++ struct nfs4_delegation *searchdp = NULL; |
689 |
++ struct nfs4_client *searchclp = NULL; |
690 |
++ |
691 |
++ lockdep_assert_held(&state_lock); |
692 |
++ lockdep_assert_held(&fp->fi_lock); |
693 |
++ |
694 |
++ list_for_each_entry(searchdp, &fp->fi_delegations, dl_perfile) { |
695 |
++ searchclp = searchdp->dl_stid.sc_client; |
696 |
++ if (clp == searchclp) { |
697 |
++ return -EAGAIN; |
698 |
++ } |
699 |
++ } |
700 |
++ return 0; |
701 |
++} |
702 |
++ |
703 |
++/** |
704 |
++ * hash_delegation_locked - Add a delegation to the appropriate lists |
705 |
++ * @dp: a pointer to the nfs4_delegation we are adding. |
706 |
++ * @fp: a pointer to the nfs4_file we're granting a delegation on |
707 |
++ * |
708 |
++ * Return: |
709 |
++ * On success: NULL if the delegation was successfully hashed. |
710 |
++ * |
711 |
++ * On error: -EAGAIN if one was previously granted to this |
712 |
++ * nfs4_client for this nfs4_file. Delegation is not hashed. |
713 |
++ * |
714 |
++ */ |
715 |
++ |
716 |
++static int |
717 |
+ hash_delegation_locked(struct nfs4_delegation *dp, struct nfs4_file *fp) |
718 |
+ { |
719 |
++ int status; |
720 |
++ struct nfs4_client *clp = dp->dl_stid.sc_client; |
721 |
++ |
722 |
+ lockdep_assert_held(&state_lock); |
723 |
+ lockdep_assert_held(&fp->fi_lock); |
724 |
+ |
725 |
++ status = nfs4_get_existing_delegation(clp, fp); |
726 |
++ if (status) |
727 |
++ return status; |
728 |
++ ++fp->fi_delegees; |
729 |
+ atomic_inc(&dp->dl_stid.sc_count); |
730 |
+ dp->dl_stid.sc_type = NFS4_DELEG_STID; |
731 |
+ list_add(&dp->dl_perfile, &fp->fi_delegations); |
732 |
+- list_add(&dp->dl_perclnt, &dp->dl_stid.sc_client->cl_delegations); |
733 |
++ list_add(&dp->dl_perclnt, &clp->cl_delegations); |
734 |
++ return 0; |
735 |
+ } |
736 |
+ |
737 |
+ static bool |
738 |
+@@ -3351,6 +3403,7 @@ static void init_open_stateid(struct nfs4_ol_stateid *stp, struct nfs4_file *fp, |
739 |
+ stp->st_access_bmap = 0; |
740 |
+ stp->st_deny_bmap = 0; |
741 |
+ stp->st_openstp = NULL; |
742 |
++ init_rwsem(&stp->st_rwsem); |
743 |
+ spin_lock(&oo->oo_owner.so_client->cl_lock); |
744 |
+ list_add(&stp->st_perstateowner, &oo->oo_owner.so_stateids); |
745 |
+ spin_lock(&fp->fi_lock); |
746 |
+@@ -3940,6 +3993,18 @@ static struct file_lock *nfs4_alloc_init_lease(struct nfs4_file *fp, int flag) |
747 |
+ return fl; |
748 |
+ } |
749 |
+ |
750 |
++/** |
751 |
++ * nfs4_setlease - Obtain a delegation by requesting lease from vfs layer |
752 |
++ * @dp: a pointer to the nfs4_delegation we're adding. |
753 |
++ * |
754 |
++ * Return: |
755 |
++ * On success: Return code will be 0 on success. |
756 |
++ * |
757 |
++ * On error: -EAGAIN if there was an existing delegation. |
758 |
++ * nonzero if there is an error in other cases. |
759 |
++ * |
760 |
++ */ |
761 |
++ |
762 |
+ static int nfs4_setlease(struct nfs4_delegation *dp) |
763 |
+ { |
764 |
+ struct nfs4_file *fp = dp->dl_stid.sc_file; |
765 |
+@@ -3971,16 +4036,19 @@ static int nfs4_setlease(struct nfs4_delegation *dp) |
766 |
+ goto out_unlock; |
767 |
+ /* Race breaker */ |
768 |
+ if (fp->fi_deleg_file) { |
769 |
+- status = 0; |
770 |
+- ++fp->fi_delegees; |
771 |
+- hash_delegation_locked(dp, fp); |
772 |
++ status = hash_delegation_locked(dp, fp); |
773 |
+ goto out_unlock; |
774 |
+ } |
775 |
+ fp->fi_deleg_file = filp; |
776 |
+- fp->fi_delegees = 1; |
777 |
+- hash_delegation_locked(dp, fp); |
778 |
++ fp->fi_delegees = 0; |
779 |
++ status = hash_delegation_locked(dp, fp); |
780 |
+ spin_unlock(&fp->fi_lock); |
781 |
+ spin_unlock(&state_lock); |
782 |
++ if (status) { |
783 |
++ /* Should never happen, this is a new fi_deleg_file */ |
784 |
++ WARN_ON_ONCE(1); |
785 |
++ goto out_fput; |
786 |
++ } |
787 |
+ return 0; |
788 |
+ out_unlock: |
789 |
+ spin_unlock(&fp->fi_lock); |
790 |
+@@ -4000,6 +4068,15 @@ nfs4_set_delegation(struct nfs4_client *clp, struct svc_fh *fh, |
791 |
+ if (fp->fi_had_conflict) |
792 |
+ return ERR_PTR(-EAGAIN); |
793 |
+ |
794 |
++ spin_lock(&state_lock); |
795 |
++ spin_lock(&fp->fi_lock); |
796 |
++ status = nfs4_get_existing_delegation(clp, fp); |
797 |
++ spin_unlock(&fp->fi_lock); |
798 |
++ spin_unlock(&state_lock); |
799 |
++ |
800 |
++ if (status) |
801 |
++ return ERR_PTR(status); |
802 |
++ |
803 |
+ dp = alloc_init_deleg(clp, fh, odstate); |
804 |
+ if (!dp) |
805 |
+ return ERR_PTR(-ENOMEM); |
806 |
+@@ -4018,9 +4095,7 @@ nfs4_set_delegation(struct nfs4_client *clp, struct svc_fh *fh, |
807 |
+ status = -EAGAIN; |
808 |
+ goto out_unlock; |
809 |
+ } |
810 |
+- ++fp->fi_delegees; |
811 |
+- hash_delegation_locked(dp, fp); |
812 |
+- status = 0; |
813 |
++ status = hash_delegation_locked(dp, fp); |
814 |
+ out_unlock: |
815 |
+ spin_unlock(&fp->fi_lock); |
816 |
+ spin_unlock(&state_lock); |
817 |
+@@ -4181,15 +4256,20 @@ nfsd4_process_open2(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nf |
818 |
+ */ |
819 |
+ if (stp) { |
820 |
+ /* Stateid was found, this is an OPEN upgrade */ |
821 |
++ down_read(&stp->st_rwsem); |
822 |
+ status = nfs4_upgrade_open(rqstp, fp, current_fh, stp, open); |
823 |
+- if (status) |
824 |
++ if (status) { |
825 |
++ up_read(&stp->st_rwsem); |
826 |
+ goto out; |
827 |
++ } |
828 |
+ } else { |
829 |
+ stp = open->op_stp; |
830 |
+ open->op_stp = NULL; |
831 |
+ init_open_stateid(stp, fp, open); |
832 |
++ down_read(&stp->st_rwsem); |
833 |
+ status = nfs4_get_vfs_file(rqstp, fp, current_fh, stp, open); |
834 |
+ if (status) { |
835 |
++ up_read(&stp->st_rwsem); |
836 |
+ release_open_stateid(stp); |
837 |
+ goto out; |
838 |
+ } |
839 |
+@@ -4201,6 +4281,7 @@ nfsd4_process_open2(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nf |
840 |
+ } |
841 |
+ update_stateid(&stp->st_stid.sc_stateid); |
842 |
+ memcpy(&open->op_stateid, &stp->st_stid.sc_stateid, sizeof(stateid_t)); |
843 |
++ up_read(&stp->st_rwsem); |
844 |
+ |
845 |
+ if (nfsd4_has_session(&resp->cstate)) { |
846 |
+ if (open->op_deleg_want & NFS4_SHARE_WANT_NO_DELEG) { |
847 |
+@@ -4777,10 +4858,13 @@ static __be32 nfs4_seqid_op_checks(struct nfsd4_compound_state *cstate, stateid_ |
848 |
+ * revoked delegations are kept only for free_stateid. |
849 |
+ */ |
850 |
+ return nfserr_bad_stateid; |
851 |
++ down_write(&stp->st_rwsem); |
852 |
+ status = check_stateid_generation(stateid, &stp->st_stid.sc_stateid, nfsd4_has_session(cstate)); |
853 |
+- if (status) |
854 |
+- return status; |
855 |
+- return nfs4_check_fh(current_fh, &stp->st_stid); |
856 |
++ if (status == nfs_ok) |
857 |
++ status = nfs4_check_fh(current_fh, &stp->st_stid); |
858 |
++ if (status != nfs_ok) |
859 |
++ up_write(&stp->st_rwsem); |
860 |
++ return status; |
861 |
+ } |
862 |
+ |
863 |
+ /* |
864 |
+@@ -4827,6 +4911,7 @@ static __be32 nfs4_preprocess_confirmed_seqid_op(struct nfsd4_compound_state *cs |
865 |
+ return status; |
866 |
+ oo = openowner(stp->st_stateowner); |
867 |
+ if (!(oo->oo_flags & NFS4_OO_CONFIRMED)) { |
868 |
++ up_write(&stp->st_rwsem); |
869 |
+ nfs4_put_stid(&stp->st_stid); |
870 |
+ return nfserr_bad_stateid; |
871 |
+ } |
872 |
+@@ -4857,11 +4942,14 @@ nfsd4_open_confirm(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
873 |
+ goto out; |
874 |
+ oo = openowner(stp->st_stateowner); |
875 |
+ status = nfserr_bad_stateid; |
876 |
+- if (oo->oo_flags & NFS4_OO_CONFIRMED) |
877 |
++ if (oo->oo_flags & NFS4_OO_CONFIRMED) { |
878 |
++ up_write(&stp->st_rwsem); |
879 |
+ goto put_stateid; |
880 |
++ } |
881 |
+ oo->oo_flags |= NFS4_OO_CONFIRMED; |
882 |
+ update_stateid(&stp->st_stid.sc_stateid); |
883 |
+ memcpy(&oc->oc_resp_stateid, &stp->st_stid.sc_stateid, sizeof(stateid_t)); |
884 |
++ up_write(&stp->st_rwsem); |
885 |
+ dprintk("NFSD: %s: success, seqid=%d stateid=" STATEID_FMT "\n", |
886 |
+ __func__, oc->oc_seqid, STATEID_VAL(&stp->st_stid.sc_stateid)); |
887 |
+ |
888 |
+@@ -4940,6 +5028,7 @@ nfsd4_open_downgrade(struct svc_rqst *rqstp, |
889 |
+ memcpy(&od->od_stateid, &stp->st_stid.sc_stateid, sizeof(stateid_t)); |
890 |
+ status = nfs_ok; |
891 |
+ put_stateid: |
892 |
++ up_write(&stp->st_rwsem); |
893 |
+ nfs4_put_stid(&stp->st_stid); |
894 |
+ out: |
895 |
+ nfsd4_bump_seqid(cstate, status); |
896 |
+@@ -4993,6 +5082,7 @@ nfsd4_close(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
897 |
+ goto out; |
898 |
+ update_stateid(&stp->st_stid.sc_stateid); |
899 |
+ memcpy(&close->cl_stateid, &stp->st_stid.sc_stateid, sizeof(stateid_t)); |
900 |
++ up_write(&stp->st_rwsem); |
901 |
+ |
902 |
+ nfsd4_close_open_stateid(stp); |
903 |
+ |
904 |
+@@ -5223,6 +5313,7 @@ init_lock_stateid(struct nfs4_ol_stateid *stp, struct nfs4_lockowner *lo, |
905 |
+ stp->st_access_bmap = 0; |
906 |
+ stp->st_deny_bmap = open_stp->st_deny_bmap; |
907 |
+ stp->st_openstp = open_stp; |
908 |
++ init_rwsem(&stp->st_rwsem); |
909 |
+ list_add(&stp->st_locks, &open_stp->st_locks); |
910 |
+ list_add(&stp->st_perstateowner, &lo->lo_owner.so_stateids); |
911 |
+ spin_lock(&fp->fi_lock); |
912 |
+@@ -5391,6 +5482,7 @@ nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
913 |
+ &open_stp, nn); |
914 |
+ if (status) |
915 |
+ goto out; |
916 |
++ up_write(&open_stp->st_rwsem); |
917 |
+ open_sop = openowner(open_stp->st_stateowner); |
918 |
+ status = nfserr_bad_stateid; |
919 |
+ if (!same_clid(&open_sop->oo_owner.so_client->cl_clientid, |
920 |
+@@ -5398,6 +5490,8 @@ nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
921 |
+ goto out; |
922 |
+ status = lookup_or_create_lock_state(cstate, open_stp, lock, |
923 |
+ &lock_stp, &new); |
924 |
++ if (status == nfs_ok) |
925 |
++ down_write(&lock_stp->st_rwsem); |
926 |
+ } else { |
927 |
+ status = nfs4_preprocess_seqid_op(cstate, |
928 |
+ lock->lk_old_lock_seqid, |
929 |
+@@ -5503,6 +5597,8 @@ out: |
930 |
+ seqid_mutating_err(ntohl(status))) |
931 |
+ lock_sop->lo_owner.so_seqid++; |
932 |
+ |
933 |
++ up_write(&lock_stp->st_rwsem); |
934 |
++ |
935 |
+ /* |
936 |
+ * If this is a new, never-before-used stateid, and we are |
937 |
+ * returning an error, then just go ahead and release it. |
938 |
+@@ -5673,6 +5769,7 @@ nfsd4_locku(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
939 |
+ fput: |
940 |
+ fput(filp); |
941 |
+ put_stateid: |
942 |
++ up_write(&stp->st_rwsem); |
943 |
+ nfs4_put_stid(&stp->st_stid); |
944 |
+ out: |
945 |
+ nfsd4_bump_seqid(cstate, status); |
946 |
+diff --git a/fs/nfsd/state.h b/fs/nfsd/state.h |
947 |
+index dbc4f85a5008..67685b6cfef3 100644 |
948 |
+--- a/fs/nfsd/state.h |
949 |
++++ b/fs/nfsd/state.h |
950 |
+@@ -533,15 +533,16 @@ struct nfs4_file { |
951 |
+ * Better suggestions welcome. |
952 |
+ */ |
953 |
+ struct nfs4_ol_stateid { |
954 |
+- struct nfs4_stid st_stid; /* must be first field */ |
955 |
+- struct list_head st_perfile; |
956 |
+- struct list_head st_perstateowner; |
957 |
+- struct list_head st_locks; |
958 |
+- struct nfs4_stateowner * st_stateowner; |
959 |
+- struct nfs4_clnt_odstate * st_clnt_odstate; |
960 |
+- unsigned char st_access_bmap; |
961 |
+- unsigned char st_deny_bmap; |
962 |
+- struct nfs4_ol_stateid * st_openstp; |
963 |
++ struct nfs4_stid st_stid; |
964 |
++ struct list_head st_perfile; |
965 |
++ struct list_head st_perstateowner; |
966 |
++ struct list_head st_locks; |
967 |
++ struct nfs4_stateowner *st_stateowner; |
968 |
++ struct nfs4_clnt_odstate *st_clnt_odstate; |
969 |
++ unsigned char st_access_bmap; |
970 |
++ unsigned char st_deny_bmap; |
971 |
++ struct nfs4_ol_stateid *st_openstp; |
972 |
++ struct rw_semaphore st_rwsem; |
973 |
+ }; |
974 |
+ |
975 |
+ static inline struct nfs4_ol_stateid *openlockstateid(struct nfs4_stid *s) |
976 |
+diff --git a/fs/ocfs2/namei.c b/fs/ocfs2/namei.c |
977 |
+index 176fe6afd94e..4d5e0a573f4f 100644 |
978 |
+--- a/fs/ocfs2/namei.c |
979 |
++++ b/fs/ocfs2/namei.c |
980 |
+@@ -365,6 +365,8 @@ static int ocfs2_mknod(struct inode *dir, |
981 |
+ mlog_errno(status); |
982 |
+ goto leave; |
983 |
+ } |
984 |
++ /* update inode->i_mode after mask with "umask". */ |
985 |
++ inode->i_mode = mode; |
986 |
+ |
987 |
+ handle = ocfs2_start_trans(osb, ocfs2_mknod_credits(osb->sb, |
988 |
+ S_ISDIR(mode), |
989 |
+diff --git a/include/linux/ipv6.h b/include/linux/ipv6.h |
990 |
+index 82806c60aa42..e4b464983322 100644 |
991 |
+--- a/include/linux/ipv6.h |
992 |
++++ b/include/linux/ipv6.h |
993 |
+@@ -224,7 +224,7 @@ struct ipv6_pinfo { |
994 |
+ struct ipv6_ac_socklist *ipv6_ac_list; |
995 |
+ struct ipv6_fl_socklist __rcu *ipv6_fl_list; |
996 |
+ |
997 |
+- struct ipv6_txoptions *opt; |
998 |
++ struct ipv6_txoptions __rcu *opt; |
999 |
+ struct sk_buff *pktoptions; |
1000 |
+ struct sk_buff *rxpmtu; |
1001 |
+ struct inet6_cork cork; |
1002 |
+diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h |
1003 |
+index eb1cebed3f36..c90c9b70e568 100644 |
1004 |
+--- a/include/linux/jbd2.h |
1005 |
++++ b/include/linux/jbd2.h |
1006 |
+@@ -1007,6 +1007,7 @@ struct journal_s |
1007 |
+ #define JBD2_ABORT_ON_SYNCDATA_ERR 0x040 /* Abort the journal on file |
1008 |
+ * data write error in ordered |
1009 |
+ * mode */ |
1010 |
++#define JBD2_REC_ERR 0x080 /* The errno in the sb has been recorded */ |
1011 |
+ |
1012 |
+ /* |
1013 |
+ * Function declarations for the journaling transaction and buffer |
1014 |
+diff --git a/include/net/af_unix.h b/include/net/af_unix.h |
1015 |
+index dfe4ddfbb43c..e830c3dff61a 100644 |
1016 |
+--- a/include/net/af_unix.h |
1017 |
++++ b/include/net/af_unix.h |
1018 |
+@@ -63,6 +63,7 @@ struct unix_sock { |
1019 |
+ #define UNIX_GC_CANDIDATE 0 |
1020 |
+ #define UNIX_GC_MAYBE_CYCLE 1 |
1021 |
+ struct socket_wq peer_wq; |
1022 |
++ wait_queue_t peer_wake; |
1023 |
+ }; |
1024 |
+ |
1025 |
+ static inline struct unix_sock *unix_sk(struct sock *sk) |
1026 |
+diff --git a/include/net/ip6_tunnel.h b/include/net/ip6_tunnel.h |
1027 |
+index b8529aa1dae7..b0f7445c0fdc 100644 |
1028 |
+--- a/include/net/ip6_tunnel.h |
1029 |
++++ b/include/net/ip6_tunnel.h |
1030 |
+@@ -83,11 +83,12 @@ static inline void ip6tunnel_xmit(struct sock *sk, struct sk_buff *skb, |
1031 |
+ err = ip6_local_out_sk(sk, skb); |
1032 |
+ |
1033 |
+ if (net_xmit_eval(err) == 0) { |
1034 |
+- struct pcpu_sw_netstats *tstats = this_cpu_ptr(dev->tstats); |
1035 |
++ struct pcpu_sw_netstats *tstats = get_cpu_ptr(dev->tstats); |
1036 |
+ u64_stats_update_begin(&tstats->syncp); |
1037 |
+ tstats->tx_bytes += pkt_len; |
1038 |
+ tstats->tx_packets++; |
1039 |
+ u64_stats_update_end(&tstats->syncp); |
1040 |
++ put_cpu_ptr(tstats); |
1041 |
+ } else { |
1042 |
+ stats->tx_errors++; |
1043 |
+ stats->tx_aborted_errors++; |
1044 |
+diff --git a/include/net/ip_tunnels.h b/include/net/ip_tunnels.h |
1045 |
+index d8214cb88bbc..9c2897e56ee1 100644 |
1046 |
+--- a/include/net/ip_tunnels.h |
1047 |
++++ b/include/net/ip_tunnels.h |
1048 |
+@@ -207,12 +207,13 @@ static inline void iptunnel_xmit_stats(int err, |
1049 |
+ struct pcpu_sw_netstats __percpu *stats) |
1050 |
+ { |
1051 |
+ if (err > 0) { |
1052 |
+- struct pcpu_sw_netstats *tstats = this_cpu_ptr(stats); |
1053 |
++ struct pcpu_sw_netstats *tstats = get_cpu_ptr(stats); |
1054 |
+ |
1055 |
+ u64_stats_update_begin(&tstats->syncp); |
1056 |
+ tstats->tx_bytes += err; |
1057 |
+ tstats->tx_packets++; |
1058 |
+ u64_stats_update_end(&tstats->syncp); |
1059 |
++ put_cpu_ptr(tstats); |
1060 |
+ } else if (err < 0) { |
1061 |
+ err_stats->tx_errors++; |
1062 |
+ err_stats->tx_aborted_errors++; |
1063 |
+diff --git a/include/net/ipv6.h b/include/net/ipv6.h |
1064 |
+index eec8ad3c9843..df555ecd4002 100644 |
1065 |
+--- a/include/net/ipv6.h |
1066 |
++++ b/include/net/ipv6.h |
1067 |
+@@ -205,6 +205,7 @@ extern rwlock_t ip6_ra_lock; |
1068 |
+ */ |
1069 |
+ |
1070 |
+ struct ipv6_txoptions { |
1071 |
++ atomic_t refcnt; |
1072 |
+ /* Length of this structure */ |
1073 |
+ int tot_len; |
1074 |
+ |
1075 |
+@@ -217,7 +218,7 @@ struct ipv6_txoptions { |
1076 |
+ struct ipv6_opt_hdr *dst0opt; |
1077 |
+ struct ipv6_rt_hdr *srcrt; /* Routing Header */ |
1078 |
+ struct ipv6_opt_hdr *dst1opt; |
1079 |
+- |
1080 |
++ struct rcu_head rcu; |
1081 |
+ /* Option buffer, as read by IPV6_PKTOPTIONS, starts here. */ |
1082 |
+ }; |
1083 |
+ |
1084 |
+@@ -250,6 +251,24 @@ struct ipv6_fl_socklist { |
1085 |
+ struct rcu_head rcu; |
1086 |
+ }; |
1087 |
+ |
1088 |
++static inline struct ipv6_txoptions *txopt_get(const struct ipv6_pinfo *np) |
1089 |
++{ |
1090 |
++ struct ipv6_txoptions *opt; |
1091 |
++ |
1092 |
++ rcu_read_lock(); |
1093 |
++ opt = rcu_dereference(np->opt); |
1094 |
++ if (opt && !atomic_inc_not_zero(&opt->refcnt)) |
1095 |
++ opt = NULL; |
1096 |
++ rcu_read_unlock(); |
1097 |
++ return opt; |
1098 |
++} |
1099 |
++ |
1100 |
++static inline void txopt_put(struct ipv6_txoptions *opt) |
1101 |
++{ |
1102 |
++ if (opt && atomic_dec_and_test(&opt->refcnt)) |
1103 |
++ kfree_rcu(opt, rcu); |
1104 |
++} |
1105 |
++ |
1106 |
+ struct ip6_flowlabel *fl6_sock_lookup(struct sock *sk, __be32 label); |
1107 |
+ struct ipv6_txoptions *fl6_merge_options(struct ipv6_txoptions *opt_space, |
1108 |
+ struct ip6_flowlabel *fl, |
1109 |
+@@ -488,6 +507,7 @@ struct ip6_create_arg { |
1110 |
+ u32 user; |
1111 |
+ const struct in6_addr *src; |
1112 |
+ const struct in6_addr *dst; |
1113 |
++ int iif; |
1114 |
+ u8 ecn; |
1115 |
+ }; |
1116 |
+ |
1117 |
+diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h |
1118 |
+index 6d778efcfdfd..080b657ef8fb 100644 |
1119 |
+--- a/include/net/sch_generic.h |
1120 |
++++ b/include/net/sch_generic.h |
1121 |
+@@ -61,6 +61,9 @@ struct Qdisc { |
1122 |
+ */ |
1123 |
+ #define TCQ_F_WARN_NONWC (1 << 16) |
1124 |
+ #define TCQ_F_CPUSTATS 0x20 /* run using percpu statistics */ |
1125 |
++#define TCQ_F_NOPARENT 0x40 /* root of its hierarchy : |
1126 |
++ * qdisc_tree_decrease_qlen() should stop. |
1127 |
++ */ |
1128 |
+ u32 limit; |
1129 |
+ const struct Qdisc_ops *ops; |
1130 |
+ struct qdisc_size_table __rcu *stab; |
1131 |
+diff --git a/kernel/bpf/arraymap.c b/kernel/bpf/arraymap.c |
1132 |
+index 8a6616583f38..1c1b8ab34037 100644 |
1133 |
+--- a/kernel/bpf/arraymap.c |
1134 |
++++ b/kernel/bpf/arraymap.c |
1135 |
+@@ -109,7 +109,7 @@ static int array_map_update_elem(struct bpf_map *map, void *key, void *value, |
1136 |
+ /* all elements already exist */ |
1137 |
+ return -EEXIST; |
1138 |
+ |
1139 |
+- memcpy(array->value + array->elem_size * index, value, array->elem_size); |
1140 |
++ memcpy(array->value + array->elem_size * index, value, map->value_size); |
1141 |
+ return 0; |
1142 |
+ } |
1143 |
+ |
1144 |
+diff --git a/net/core/neighbour.c b/net/core/neighbour.c |
1145 |
+index 2237c1b3cdd2..d6e8cfcb6f7c 100644 |
1146 |
+--- a/net/core/neighbour.c |
1147 |
++++ b/net/core/neighbour.c |
1148 |
+@@ -2207,7 +2207,7 @@ static int pneigh_fill_info(struct sk_buff *skb, struct pneigh_entry *pn, |
1149 |
+ ndm->ndm_pad2 = 0; |
1150 |
+ ndm->ndm_flags = pn->flags | NTF_PROXY; |
1151 |
+ ndm->ndm_type = RTN_UNICAST; |
1152 |
+- ndm->ndm_ifindex = pn->dev->ifindex; |
1153 |
++ ndm->ndm_ifindex = pn->dev ? pn->dev->ifindex : 0; |
1154 |
+ ndm->ndm_state = NUD_NONE; |
1155 |
+ |
1156 |
+ if (nla_put(skb, NDA_DST, tbl->key_len, pn->key)) |
1157 |
+@@ -2282,7 +2282,7 @@ static int pneigh_dump_table(struct neigh_table *tbl, struct sk_buff *skb, |
1158 |
+ if (h > s_h) |
1159 |
+ s_idx = 0; |
1160 |
+ for (n = tbl->phash_buckets[h], idx = 0; n; n = n->next) { |
1161 |
+- if (dev_net(n->dev) != net) |
1162 |
++ if (pneigh_net(n) != net) |
1163 |
+ continue; |
1164 |
+ if (idx < s_idx) |
1165 |
+ goto next; |
1166 |
+diff --git a/net/core/scm.c b/net/core/scm.c |
1167 |
+index 3b6899b7d810..8a1741b14302 100644 |
1168 |
+--- a/net/core/scm.c |
1169 |
++++ b/net/core/scm.c |
1170 |
+@@ -305,6 +305,8 @@ void scm_detach_fds(struct msghdr *msg, struct scm_cookie *scm) |
1171 |
+ err = put_user(cmlen, &cm->cmsg_len); |
1172 |
+ if (!err) { |
1173 |
+ cmlen = CMSG_SPACE(i*sizeof(int)); |
1174 |
++ if (msg->msg_controllen < cmlen) |
1175 |
++ cmlen = msg->msg_controllen; |
1176 |
+ msg->msg_control += cmlen; |
1177 |
+ msg->msg_controllen -= cmlen; |
1178 |
+ } |
1179 |
+diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c |
1180 |
+index 5165571f397a..a0490508d213 100644 |
1181 |
+--- a/net/dccp/ipv6.c |
1182 |
++++ b/net/dccp/ipv6.c |
1183 |
+@@ -202,7 +202,9 @@ static int dccp_v6_send_response(struct sock *sk, struct request_sock *req) |
1184 |
+ security_req_classify_flow(req, flowi6_to_flowi(&fl6)); |
1185 |
+ |
1186 |
+ |
1187 |
+- final_p = fl6_update_dst(&fl6, np->opt, &final); |
1188 |
++ rcu_read_lock(); |
1189 |
++ final_p = fl6_update_dst(&fl6, rcu_dereference(np->opt), &final); |
1190 |
++ rcu_read_unlock(); |
1191 |
+ |
1192 |
+ dst = ip6_dst_lookup_flow(sk, &fl6, final_p); |
1193 |
+ if (IS_ERR(dst)) { |
1194 |
+@@ -219,7 +221,10 @@ static int dccp_v6_send_response(struct sock *sk, struct request_sock *req) |
1195 |
+ &ireq->ir_v6_loc_addr, |
1196 |
+ &ireq->ir_v6_rmt_addr); |
1197 |
+ fl6.daddr = ireq->ir_v6_rmt_addr; |
1198 |
+- err = ip6_xmit(sk, skb, &fl6, np->opt, np->tclass); |
1199 |
++ rcu_read_lock(); |
1200 |
++ err = ip6_xmit(sk, skb, &fl6, rcu_dereference(np->opt), |
1201 |
++ np->tclass); |
1202 |
++ rcu_read_unlock(); |
1203 |
+ err = net_xmit_eval(err); |
1204 |
+ } |
1205 |
+ |
1206 |
+@@ -415,6 +420,7 @@ static struct sock *dccp_v6_request_recv_sock(struct sock *sk, |
1207 |
+ { |
1208 |
+ struct inet_request_sock *ireq = inet_rsk(req); |
1209 |
+ struct ipv6_pinfo *newnp, *np = inet6_sk(sk); |
1210 |
++ struct ipv6_txoptions *opt; |
1211 |
+ struct inet_sock *newinet; |
1212 |
+ struct dccp6_sock *newdp6; |
1213 |
+ struct sock *newsk; |
1214 |
+@@ -534,13 +540,15 @@ static struct sock *dccp_v6_request_recv_sock(struct sock *sk, |
1215 |
+ * Yes, keeping reference count would be much more clever, but we make |
1216 |
+ * one more one thing there: reattach optmem to newsk. |
1217 |
+ */ |
1218 |
+- if (np->opt != NULL) |
1219 |
+- newnp->opt = ipv6_dup_options(newsk, np->opt); |
1220 |
+- |
1221 |
++ opt = rcu_dereference(np->opt); |
1222 |
++ if (opt) { |
1223 |
++ opt = ipv6_dup_options(newsk, opt); |
1224 |
++ RCU_INIT_POINTER(newnp->opt, opt); |
1225 |
++ } |
1226 |
+ inet_csk(newsk)->icsk_ext_hdr_len = 0; |
1227 |
+- if (newnp->opt != NULL) |
1228 |
+- inet_csk(newsk)->icsk_ext_hdr_len = (newnp->opt->opt_nflen + |
1229 |
+- newnp->opt->opt_flen); |
1230 |
++ if (opt) |
1231 |
++ inet_csk(newsk)->icsk_ext_hdr_len = opt->opt_nflen + |
1232 |
++ opt->opt_flen; |
1233 |
+ |
1234 |
+ dccp_sync_mss(newsk, dst_mtu(dst)); |
1235 |
+ |
1236 |
+@@ -793,6 +801,7 @@ static int dccp_v6_connect(struct sock *sk, struct sockaddr *uaddr, |
1237 |
+ struct ipv6_pinfo *np = inet6_sk(sk); |
1238 |
+ struct dccp_sock *dp = dccp_sk(sk); |
1239 |
+ struct in6_addr *saddr = NULL, *final_p, final; |
1240 |
++ struct ipv6_txoptions *opt; |
1241 |
+ struct flowi6 fl6; |
1242 |
+ struct dst_entry *dst; |
1243 |
+ int addr_type; |
1244 |
+@@ -892,7 +901,8 @@ static int dccp_v6_connect(struct sock *sk, struct sockaddr *uaddr, |
1245 |
+ fl6.fl6_sport = inet->inet_sport; |
1246 |
+ security_sk_classify_flow(sk, flowi6_to_flowi(&fl6)); |
1247 |
+ |
1248 |
+- final_p = fl6_update_dst(&fl6, np->opt, &final); |
1249 |
++ opt = rcu_dereference_protected(np->opt, sock_owned_by_user(sk)); |
1250 |
++ final_p = fl6_update_dst(&fl6, opt, &final); |
1251 |
+ |
1252 |
+ dst = ip6_dst_lookup_flow(sk, &fl6, final_p); |
1253 |
+ if (IS_ERR(dst)) { |
1254 |
+@@ -912,9 +922,8 @@ static int dccp_v6_connect(struct sock *sk, struct sockaddr *uaddr, |
1255 |
+ __ip6_dst_store(sk, dst, NULL, NULL); |
1256 |
+ |
1257 |
+ icsk->icsk_ext_hdr_len = 0; |
1258 |
+- if (np->opt != NULL) |
1259 |
+- icsk->icsk_ext_hdr_len = (np->opt->opt_flen + |
1260 |
+- np->opt->opt_nflen); |
1261 |
++ if (opt) |
1262 |
++ icsk->icsk_ext_hdr_len = opt->opt_flen + opt->opt_nflen; |
1263 |
+ |
1264 |
+ inet->inet_dport = usin->sin6_port; |
1265 |
+ |
1266 |
+diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c |
1267 |
+index df28693f32e1..c3bfebd501ed 100644 |
1268 |
+--- a/net/ipv4/ipmr.c |
1269 |
++++ b/net/ipv4/ipmr.c |
1270 |
+@@ -134,7 +134,7 @@ static int __ipmr_fill_mroute(struct mr_table *mrt, struct sk_buff *skb, |
1271 |
+ struct mfc_cache *c, struct rtmsg *rtm); |
1272 |
+ static void mroute_netlink_event(struct mr_table *mrt, struct mfc_cache *mfc, |
1273 |
+ int cmd); |
1274 |
+-static void mroute_clean_tables(struct mr_table *mrt); |
1275 |
++static void mroute_clean_tables(struct mr_table *mrt, bool all); |
1276 |
+ static void ipmr_expire_process(unsigned long arg); |
1277 |
+ |
1278 |
+ #ifdef CONFIG_IP_MROUTE_MULTIPLE_TABLES |
1279 |
+@@ -351,7 +351,7 @@ static struct mr_table *ipmr_new_table(struct net *net, u32 id) |
1280 |
+ static void ipmr_free_table(struct mr_table *mrt) |
1281 |
+ { |
1282 |
+ del_timer_sync(&mrt->ipmr_expire_timer); |
1283 |
+- mroute_clean_tables(mrt); |
1284 |
++ mroute_clean_tables(mrt, true); |
1285 |
+ kfree(mrt); |
1286 |
+ } |
1287 |
+ |
1288 |
+@@ -1209,7 +1209,7 @@ static int ipmr_mfc_add(struct net *net, struct mr_table *mrt, |
1289 |
+ * Close the multicast socket, and clear the vif tables etc |
1290 |
+ */ |
1291 |
+ |
1292 |
+-static void mroute_clean_tables(struct mr_table *mrt) |
1293 |
++static void mroute_clean_tables(struct mr_table *mrt, bool all) |
1294 |
+ { |
1295 |
+ int i; |
1296 |
+ LIST_HEAD(list); |
1297 |
+@@ -1218,8 +1218,9 @@ static void mroute_clean_tables(struct mr_table *mrt) |
1298 |
+ /* Shut down all active vif entries */ |
1299 |
+ |
1300 |
+ for (i = 0; i < mrt->maxvif; i++) { |
1301 |
+- if (!(mrt->vif_table[i].flags & VIFF_STATIC)) |
1302 |
+- vif_delete(mrt, i, 0, &list); |
1303 |
++ if (!all && (mrt->vif_table[i].flags & VIFF_STATIC)) |
1304 |
++ continue; |
1305 |
++ vif_delete(mrt, i, 0, &list); |
1306 |
+ } |
1307 |
+ unregister_netdevice_many(&list); |
1308 |
+ |
1309 |
+@@ -1227,7 +1228,7 @@ static void mroute_clean_tables(struct mr_table *mrt) |
1310 |
+ |
1311 |
+ for (i = 0; i < MFC_LINES; i++) { |
1312 |
+ list_for_each_entry_safe(c, next, &mrt->mfc_cache_array[i], list) { |
1313 |
+- if (c->mfc_flags & MFC_STATIC) |
1314 |
++ if (!all && (c->mfc_flags & MFC_STATIC)) |
1315 |
+ continue; |
1316 |
+ list_del_rcu(&c->list); |
1317 |
+ mroute_netlink_event(mrt, c, RTM_DELROUTE); |
1318 |
+@@ -1262,7 +1263,7 @@ static void mrtsock_destruct(struct sock *sk) |
1319 |
+ NETCONFA_IFINDEX_ALL, |
1320 |
+ net->ipv4.devconf_all); |
1321 |
+ RCU_INIT_POINTER(mrt->mroute_sk, NULL); |
1322 |
+- mroute_clean_tables(mrt); |
1323 |
++ mroute_clean_tables(mrt, false); |
1324 |
+ } |
1325 |
+ } |
1326 |
+ rtnl_unlock(); |
1327 |
+diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c |
1328 |
+index c9ab964189a0..87463c814896 100644 |
1329 |
+--- a/net/ipv4/tcp_input.c |
1330 |
++++ b/net/ipv4/tcp_input.c |
1331 |
+@@ -4438,19 +4438,34 @@ static int __must_check tcp_queue_rcv(struct sock *sk, struct sk_buff *skb, int |
1332 |
+ int tcp_send_rcvq(struct sock *sk, struct msghdr *msg, size_t size) |
1333 |
+ { |
1334 |
+ struct sk_buff *skb; |
1335 |
++ int err = -ENOMEM; |
1336 |
++ int data_len = 0; |
1337 |
+ bool fragstolen; |
1338 |
+ |
1339 |
+ if (size == 0) |
1340 |
+ return 0; |
1341 |
+ |
1342 |
+- skb = alloc_skb(size, sk->sk_allocation); |
1343 |
++ if (size > PAGE_SIZE) { |
1344 |
++ int npages = min_t(size_t, size >> PAGE_SHIFT, MAX_SKB_FRAGS); |
1345 |
++ |
1346 |
++ data_len = npages << PAGE_SHIFT; |
1347 |
++ size = data_len + (size & ~PAGE_MASK); |
1348 |
++ } |
1349 |
++ skb = alloc_skb_with_frags(size - data_len, data_len, |
1350 |
++ PAGE_ALLOC_COSTLY_ORDER, |
1351 |
++ &err, sk->sk_allocation); |
1352 |
+ if (!skb) |
1353 |
+ goto err; |
1354 |
+ |
1355 |
++ skb_put(skb, size - data_len); |
1356 |
++ skb->data_len = data_len; |
1357 |
++ skb->len = size; |
1358 |
++ |
1359 |
+ if (tcp_try_rmem_schedule(sk, skb, skb->truesize)) |
1360 |
+ goto err_free; |
1361 |
+ |
1362 |
+- if (memcpy_from_msg(skb_put(skb, size), msg, size)) |
1363 |
++ err = skb_copy_datagram_from_iter(skb, 0, &msg->msg_iter, size); |
1364 |
++ if (err) |
1365 |
+ goto err_free; |
1366 |
+ |
1367 |
+ TCP_SKB_CB(skb)->seq = tcp_sk(sk)->rcv_nxt; |
1368 |
+@@ -4466,7 +4481,8 @@ int tcp_send_rcvq(struct sock *sk, struct msghdr *msg, size_t size) |
1369 |
+ err_free: |
1370 |
+ kfree_skb(skb); |
1371 |
+ err: |
1372 |
+- return -ENOMEM; |
1373 |
++ return err; |
1374 |
++ |
1375 |
+ } |
1376 |
+ |
1377 |
+ static void tcp_data_queue(struct sock *sk, struct sk_buff *skb) |
1378 |
+@@ -5622,6 +5638,7 @@ discard: |
1379 |
+ } |
1380 |
+ |
1381 |
+ tp->rcv_nxt = TCP_SKB_CB(skb)->seq + 1; |
1382 |
++ tp->copied_seq = tp->rcv_nxt; |
1383 |
+ tp->rcv_wup = TCP_SKB_CB(skb)->seq + 1; |
1384 |
+ |
1385 |
+ /* RFC1323: The window in SYN & SYN/ACK segments is |
1386 |
+diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c |
1387 |
+index 441ca6f38981..88203e755af8 100644 |
1388 |
+--- a/net/ipv4/tcp_ipv4.c |
1389 |
++++ b/net/ipv4/tcp_ipv4.c |
1390 |
+@@ -922,7 +922,8 @@ int tcp_md5_do_add(struct sock *sk, const union tcp_md5_addr *addr, |
1391 |
+ } |
1392 |
+ |
1393 |
+ md5sig = rcu_dereference_protected(tp->md5sig_info, |
1394 |
+- sock_owned_by_user(sk)); |
1395 |
++ sock_owned_by_user(sk) || |
1396 |
++ lockdep_is_held(&sk->sk_lock.slock)); |
1397 |
+ if (!md5sig) { |
1398 |
+ md5sig = kmalloc(sizeof(*md5sig), gfp); |
1399 |
+ if (!md5sig) |
1400 |
+diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c |
1401 |
+index 8c65dc147d8b..c8f97858d6f6 100644 |
1402 |
+--- a/net/ipv4/tcp_timer.c |
1403 |
++++ b/net/ipv4/tcp_timer.c |
1404 |
+@@ -176,6 +176,18 @@ static int tcp_write_timeout(struct sock *sk) |
1405 |
+ syn_set = true; |
1406 |
+ } else { |
1407 |
+ if (retransmits_timed_out(sk, sysctl_tcp_retries1, 0, 0)) { |
1408 |
++ /* Some middle-boxes may black-hole Fast Open _after_ |
1409 |
++ * the handshake. Therefore we conservatively disable |
1410 |
++ * Fast Open on this path on recurring timeouts with |
1411 |
++ * few or zero bytes acked after Fast Open. |
1412 |
++ */ |
1413 |
++ if (tp->syn_data_acked && |
1414 |
++ tp->bytes_acked <= tp->rx_opt.mss_clamp) { |
1415 |
++ tcp_fastopen_cache_set(sk, 0, NULL, true, 0); |
1416 |
++ if (icsk->icsk_retransmits == sysctl_tcp_retries1) |
1417 |
++ NET_INC_STATS_BH(sock_net(sk), |
1418 |
++ LINUX_MIB_TCPFASTOPENACTIVEFAIL); |
1419 |
++ } |
1420 |
+ /* Black hole detection */ |
1421 |
+ tcp_mtu_probing(icsk, sk); |
1422 |
+ |
1423 |
+diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c |
1424 |
+index eef63b394c5a..2d044d2a2ccf 100644 |
1425 |
+--- a/net/ipv6/af_inet6.c |
1426 |
++++ b/net/ipv6/af_inet6.c |
1427 |
+@@ -425,9 +425,11 @@ void inet6_destroy_sock(struct sock *sk) |
1428 |
+ |
1429 |
+ /* Free tx options */ |
1430 |
+ |
1431 |
+- opt = xchg(&np->opt, NULL); |
1432 |
+- if (opt) |
1433 |
+- sock_kfree_s(sk, opt, opt->tot_len); |
1434 |
++ opt = xchg((__force struct ipv6_txoptions **)&np->opt, NULL); |
1435 |
++ if (opt) { |
1436 |
++ atomic_sub(opt->tot_len, &sk->sk_omem_alloc); |
1437 |
++ txopt_put(opt); |
1438 |
++ } |
1439 |
+ } |
1440 |
+ EXPORT_SYMBOL_GPL(inet6_destroy_sock); |
1441 |
+ |
1442 |
+@@ -656,7 +658,10 @@ int inet6_sk_rebuild_header(struct sock *sk) |
1443 |
+ fl6.fl6_sport = inet->inet_sport; |
1444 |
+ security_sk_classify_flow(sk, flowi6_to_flowi(&fl6)); |
1445 |
+ |
1446 |
+- final_p = fl6_update_dst(&fl6, np->opt, &final); |
1447 |
++ rcu_read_lock(); |
1448 |
++ final_p = fl6_update_dst(&fl6, rcu_dereference(np->opt), |
1449 |
++ &final); |
1450 |
++ rcu_read_unlock(); |
1451 |
+ |
1452 |
+ dst = ip6_dst_lookup_flow(sk, &fl6, final_p); |
1453 |
+ if (IS_ERR(dst)) { |
1454 |
+diff --git a/net/ipv6/datagram.c b/net/ipv6/datagram.c |
1455 |
+index b10a88986a98..13ca4cf5616f 100644 |
1456 |
+--- a/net/ipv6/datagram.c |
1457 |
++++ b/net/ipv6/datagram.c |
1458 |
+@@ -167,8 +167,10 @@ ipv4_connected: |
1459 |
+ |
1460 |
+ security_sk_classify_flow(sk, flowi6_to_flowi(&fl6)); |
1461 |
+ |
1462 |
+- opt = flowlabel ? flowlabel->opt : np->opt; |
1463 |
++ rcu_read_lock(); |
1464 |
++ opt = flowlabel ? flowlabel->opt : rcu_dereference(np->opt); |
1465 |
+ final_p = fl6_update_dst(&fl6, opt, &final); |
1466 |
++ rcu_read_unlock(); |
1467 |
+ |
1468 |
+ dst = ip6_dst_lookup_flow(sk, &fl6, final_p); |
1469 |
+ err = 0; |
1470 |
+diff --git a/net/ipv6/exthdrs.c b/net/ipv6/exthdrs.c |
1471 |
+index a7bbbe45570b..adbd6958c398 100644 |
1472 |
+--- a/net/ipv6/exthdrs.c |
1473 |
++++ b/net/ipv6/exthdrs.c |
1474 |
+@@ -727,6 +727,7 @@ ipv6_dup_options(struct sock *sk, struct ipv6_txoptions *opt) |
1475 |
+ *((char **)&opt2->dst1opt) += dif; |
1476 |
+ if (opt2->srcrt) |
1477 |
+ *((char **)&opt2->srcrt) += dif; |
1478 |
++ atomic_set(&opt2->refcnt, 1); |
1479 |
+ } |
1480 |
+ return opt2; |
1481 |
+ } |
1482 |
+@@ -790,7 +791,7 @@ ipv6_renew_options(struct sock *sk, struct ipv6_txoptions *opt, |
1483 |
+ return ERR_PTR(-ENOBUFS); |
1484 |
+ |
1485 |
+ memset(opt2, 0, tot_len); |
1486 |
+- |
1487 |
++ atomic_set(&opt2->refcnt, 1); |
1488 |
+ opt2->tot_len = tot_len; |
1489 |
+ p = (char *)(opt2 + 1); |
1490 |
+ |
1491 |
+diff --git a/net/ipv6/inet6_connection_sock.c b/net/ipv6/inet6_connection_sock.c |
1492 |
+index 6927f3fb5597..9beed302eb36 100644 |
1493 |
+--- a/net/ipv6/inet6_connection_sock.c |
1494 |
++++ b/net/ipv6/inet6_connection_sock.c |
1495 |
+@@ -77,7 +77,9 @@ struct dst_entry *inet6_csk_route_req(struct sock *sk, |
1496 |
+ memset(fl6, 0, sizeof(*fl6)); |
1497 |
+ fl6->flowi6_proto = IPPROTO_TCP; |
1498 |
+ fl6->daddr = ireq->ir_v6_rmt_addr; |
1499 |
+- final_p = fl6_update_dst(fl6, np->opt, &final); |
1500 |
++ rcu_read_lock(); |
1501 |
++ final_p = fl6_update_dst(fl6, rcu_dereference(np->opt), &final); |
1502 |
++ rcu_read_unlock(); |
1503 |
+ fl6->saddr = ireq->ir_v6_loc_addr; |
1504 |
+ fl6->flowi6_oif = ireq->ir_iif; |
1505 |
+ fl6->flowi6_mark = ireq->ir_mark; |
1506 |
+@@ -207,7 +209,9 @@ static struct dst_entry *inet6_csk_route_socket(struct sock *sk, |
1507 |
+ fl6->fl6_dport = inet->inet_dport; |
1508 |
+ security_sk_classify_flow(sk, flowi6_to_flowi(fl6)); |
1509 |
+ |
1510 |
+- final_p = fl6_update_dst(fl6, np->opt, &final); |
1511 |
++ rcu_read_lock(); |
1512 |
++ final_p = fl6_update_dst(fl6, rcu_dereference(np->opt), &final); |
1513 |
++ rcu_read_unlock(); |
1514 |
+ |
1515 |
+ dst = __inet6_csk_dst_check(sk, np->dst_cookie); |
1516 |
+ if (!dst) { |
1517 |
+@@ -240,7 +244,8 @@ int inet6_csk_xmit(struct sock *sk, struct sk_buff *skb, struct flowi *fl_unused |
1518 |
+ /* Restore final destination back after routing done */ |
1519 |
+ fl6.daddr = sk->sk_v6_daddr; |
1520 |
+ |
1521 |
+- res = ip6_xmit(sk, skb, &fl6, np->opt, np->tclass); |
1522 |
++ res = ip6_xmit(sk, skb, &fl6, rcu_dereference(np->opt), |
1523 |
++ np->tclass); |
1524 |
+ rcu_read_unlock(); |
1525 |
+ return res; |
1526 |
+ } |
1527 |
+diff --git a/net/ipv6/ip6mr.c b/net/ipv6/ip6mr.c |
1528 |
+index 5f36266b1f5e..a7aef4b52d65 100644 |
1529 |
+--- a/net/ipv6/ip6mr.c |
1530 |
++++ b/net/ipv6/ip6mr.c |
1531 |
+@@ -118,7 +118,7 @@ static void mr6_netlink_event(struct mr6_table *mrt, struct mfc6_cache *mfc, |
1532 |
+ int cmd); |
1533 |
+ static int ip6mr_rtm_dumproute(struct sk_buff *skb, |
1534 |
+ struct netlink_callback *cb); |
1535 |
+-static void mroute_clean_tables(struct mr6_table *mrt); |
1536 |
++static void mroute_clean_tables(struct mr6_table *mrt, bool all); |
1537 |
+ static void ipmr_expire_process(unsigned long arg); |
1538 |
+ |
1539 |
+ #ifdef CONFIG_IPV6_MROUTE_MULTIPLE_TABLES |
1540 |
+@@ -335,7 +335,7 @@ static struct mr6_table *ip6mr_new_table(struct net *net, u32 id) |
1541 |
+ static void ip6mr_free_table(struct mr6_table *mrt) |
1542 |
+ { |
1543 |
+ del_timer_sync(&mrt->ipmr_expire_timer); |
1544 |
+- mroute_clean_tables(mrt); |
1545 |
++ mroute_clean_tables(mrt, true); |
1546 |
+ kfree(mrt); |
1547 |
+ } |
1548 |
+ |
1549 |
+@@ -1543,7 +1543,7 @@ static int ip6mr_mfc_add(struct net *net, struct mr6_table *mrt, |
1550 |
+ * Close the multicast socket, and clear the vif tables etc |
1551 |
+ */ |
1552 |
+ |
1553 |
+-static void mroute_clean_tables(struct mr6_table *mrt) |
1554 |
++static void mroute_clean_tables(struct mr6_table *mrt, bool all) |
1555 |
+ { |
1556 |
+ int i; |
1557 |
+ LIST_HEAD(list); |
1558 |
+@@ -1553,8 +1553,9 @@ static void mroute_clean_tables(struct mr6_table *mrt) |
1559 |
+ * Shut down all active vif entries |
1560 |
+ */ |
1561 |
+ for (i = 0; i < mrt->maxvif; i++) { |
1562 |
+- if (!(mrt->vif6_table[i].flags & VIFF_STATIC)) |
1563 |
+- mif6_delete(mrt, i, &list); |
1564 |
++ if (!all && (mrt->vif6_table[i].flags & VIFF_STATIC)) |
1565 |
++ continue; |
1566 |
++ mif6_delete(mrt, i, &list); |
1567 |
+ } |
1568 |
+ unregister_netdevice_many(&list); |
1569 |
+ |
1570 |
+@@ -1563,7 +1564,7 @@ static void mroute_clean_tables(struct mr6_table *mrt) |
1571 |
+ */ |
1572 |
+ for (i = 0; i < MFC6_LINES; i++) { |
1573 |
+ list_for_each_entry_safe(c, next, &mrt->mfc6_cache_array[i], list) { |
1574 |
+- if (c->mfc_flags & MFC_STATIC) |
1575 |
++ if (!all && (c->mfc_flags & MFC_STATIC)) |
1576 |
+ continue; |
1577 |
+ write_lock_bh(&mrt_lock); |
1578 |
+ list_del(&c->list); |
1579 |
+@@ -1626,7 +1627,7 @@ int ip6mr_sk_done(struct sock *sk) |
1580 |
+ net->ipv6.devconf_all); |
1581 |
+ write_unlock_bh(&mrt_lock); |
1582 |
+ |
1583 |
+- mroute_clean_tables(mrt); |
1584 |
++ mroute_clean_tables(mrt, false); |
1585 |
+ err = 0; |
1586 |
+ break; |
1587 |
+ } |
1588 |
+diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c |
1589 |
+index 63e6956917c9..4449ad1f8114 100644 |
1590 |
+--- a/net/ipv6/ipv6_sockglue.c |
1591 |
++++ b/net/ipv6/ipv6_sockglue.c |
1592 |
+@@ -111,7 +111,8 @@ struct ipv6_txoptions *ipv6_update_options(struct sock *sk, |
1593 |
+ icsk->icsk_sync_mss(sk, icsk->icsk_pmtu_cookie); |
1594 |
+ } |
1595 |
+ } |
1596 |
+- opt = xchg(&inet6_sk(sk)->opt, opt); |
1597 |
++ opt = xchg((__force struct ipv6_txoptions **)&inet6_sk(sk)->opt, |
1598 |
++ opt); |
1599 |
+ sk_dst_reset(sk); |
1600 |
+ |
1601 |
+ return opt; |
1602 |
+@@ -231,9 +232,12 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname, |
1603 |
+ sk->sk_socket->ops = &inet_dgram_ops; |
1604 |
+ sk->sk_family = PF_INET; |
1605 |
+ } |
1606 |
+- opt = xchg(&np->opt, NULL); |
1607 |
+- if (opt) |
1608 |
+- sock_kfree_s(sk, opt, opt->tot_len); |
1609 |
++ opt = xchg((__force struct ipv6_txoptions **)&np->opt, |
1610 |
++ NULL); |
1611 |
++ if (opt) { |
1612 |
++ atomic_sub(opt->tot_len, &sk->sk_omem_alloc); |
1613 |
++ txopt_put(opt); |
1614 |
++ } |
1615 |
+ pktopt = xchg(&np->pktoptions, NULL); |
1616 |
+ kfree_skb(pktopt); |
1617 |
+ |
1618 |
+@@ -403,7 +407,8 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname, |
1619 |
+ if (optname != IPV6_RTHDR && !ns_capable(net->user_ns, CAP_NET_RAW)) |
1620 |
+ break; |
1621 |
+ |
1622 |
+- opt = ipv6_renew_options(sk, np->opt, optname, |
1623 |
++ opt = rcu_dereference_protected(np->opt, sock_owned_by_user(sk)); |
1624 |
++ opt = ipv6_renew_options(sk, opt, optname, |
1625 |
+ (struct ipv6_opt_hdr __user *)optval, |
1626 |
+ optlen); |
1627 |
+ if (IS_ERR(opt)) { |
1628 |
+@@ -432,8 +437,10 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname, |
1629 |
+ retv = 0; |
1630 |
+ opt = ipv6_update_options(sk, opt); |
1631 |
+ sticky_done: |
1632 |
+- if (opt) |
1633 |
+- sock_kfree_s(sk, opt, opt->tot_len); |
1634 |
++ if (opt) { |
1635 |
++ atomic_sub(opt->tot_len, &sk->sk_omem_alloc); |
1636 |
++ txopt_put(opt); |
1637 |
++ } |
1638 |
+ break; |
1639 |
+ } |
1640 |
+ |
1641 |
+@@ -486,6 +493,7 @@ sticky_done: |
1642 |
+ break; |
1643 |
+ |
1644 |
+ memset(opt, 0, sizeof(*opt)); |
1645 |
++ atomic_set(&opt->refcnt, 1); |
1646 |
+ opt->tot_len = sizeof(*opt) + optlen; |
1647 |
+ retv = -EFAULT; |
1648 |
+ if (copy_from_user(opt+1, optval, optlen)) |
1649 |
+@@ -502,8 +510,10 @@ update: |
1650 |
+ retv = 0; |
1651 |
+ opt = ipv6_update_options(sk, opt); |
1652 |
+ done: |
1653 |
+- if (opt) |
1654 |
+- sock_kfree_s(sk, opt, opt->tot_len); |
1655 |
++ if (opt) { |
1656 |
++ atomic_sub(opt->tot_len, &sk->sk_omem_alloc); |
1657 |
++ txopt_put(opt); |
1658 |
++ } |
1659 |
+ break; |
1660 |
+ } |
1661 |
+ case IPV6_UNICAST_HOPS: |
1662 |
+@@ -1110,10 +1120,11 @@ static int do_ipv6_getsockopt(struct sock *sk, int level, int optname, |
1663 |
+ case IPV6_RTHDR: |
1664 |
+ case IPV6_DSTOPTS: |
1665 |
+ { |
1666 |
++ struct ipv6_txoptions *opt; |
1667 |
+ |
1668 |
+ lock_sock(sk); |
1669 |
+- len = ipv6_getsockopt_sticky(sk, np->opt, |
1670 |
+- optname, optval, len); |
1671 |
++ opt = rcu_dereference_protected(np->opt, sock_owned_by_user(sk)); |
1672 |
++ len = ipv6_getsockopt_sticky(sk, opt, optname, optval, len); |
1673 |
+ release_sock(sk); |
1674 |
+ /* check if ipv6_getsockopt_sticky() returns err code */ |
1675 |
+ if (len < 0) |
1676 |
+diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c |
1677 |
+index 083b2927fc67..41e3b5ee8d0b 100644 |
1678 |
+--- a/net/ipv6/mcast.c |
1679 |
++++ b/net/ipv6/mcast.c |
1680 |
+@@ -1651,7 +1651,6 @@ out: |
1681 |
+ if (!err) { |
1682 |
+ ICMP6MSGOUT_INC_STATS(net, idev, ICMPV6_MLD2_REPORT); |
1683 |
+ ICMP6_INC_STATS(net, idev, ICMP6_MIB_OUTMSGS); |
1684 |
+- IP6_UPD_PO_STATS(net, idev, IPSTATS_MIB_OUTMCAST, payload_len); |
1685 |
+ } else { |
1686 |
+ IP6_INC_STATS(net, idev, IPSTATS_MIB_OUTDISCARDS); |
1687 |
+ } |
1688 |
+@@ -2014,7 +2013,6 @@ out: |
1689 |
+ if (!err) { |
1690 |
+ ICMP6MSGOUT_INC_STATS(net, idev, type); |
1691 |
+ ICMP6_INC_STATS(net, idev, ICMP6_MIB_OUTMSGS); |
1692 |
+- IP6_UPD_PO_STATS(net, idev, IPSTATS_MIB_OUTMCAST, full_len); |
1693 |
+ } else |
1694 |
+ IP6_INC_STATS(net, idev, IPSTATS_MIB_OUTDISCARDS); |
1695 |
+ |
1696 |
+diff --git a/net/ipv6/netfilter/nf_conntrack_reasm.c b/net/ipv6/netfilter/nf_conntrack_reasm.c |
1697 |
+index 6f187c8d8a1b..d235ed7f47ab 100644 |
1698 |
+--- a/net/ipv6/netfilter/nf_conntrack_reasm.c |
1699 |
++++ b/net/ipv6/netfilter/nf_conntrack_reasm.c |
1700 |
+@@ -190,7 +190,7 @@ static void nf_ct_frag6_expire(unsigned long data) |
1701 |
+ /* Creation primitives. */ |
1702 |
+ static inline struct frag_queue *fq_find(struct net *net, __be32 id, |
1703 |
+ u32 user, struct in6_addr *src, |
1704 |
+- struct in6_addr *dst, u8 ecn) |
1705 |
++ struct in6_addr *dst, int iif, u8 ecn) |
1706 |
+ { |
1707 |
+ struct inet_frag_queue *q; |
1708 |
+ struct ip6_create_arg arg; |
1709 |
+@@ -200,6 +200,7 @@ static inline struct frag_queue *fq_find(struct net *net, __be32 id, |
1710 |
+ arg.user = user; |
1711 |
+ arg.src = src; |
1712 |
+ arg.dst = dst; |
1713 |
++ arg.iif = iif; |
1714 |
+ arg.ecn = ecn; |
1715 |
+ |
1716 |
+ local_bh_disable(); |
1717 |
+@@ -603,7 +604,7 @@ struct sk_buff *nf_ct_frag6_gather(struct sk_buff *skb, u32 user) |
1718 |
+ fhdr = (struct frag_hdr *)skb_transport_header(clone); |
1719 |
+ |
1720 |
+ fq = fq_find(net, fhdr->identification, user, &hdr->saddr, &hdr->daddr, |
1721 |
+- ip6_frag_ecn(hdr)); |
1722 |
++ skb->dev ? skb->dev->ifindex : 0, ip6_frag_ecn(hdr)); |
1723 |
+ if (fq == NULL) { |
1724 |
+ pr_debug("Can't find and can't create new queue\n"); |
1725 |
+ goto ret_orig; |
1726 |
+diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c |
1727 |
+index 8072bd4139b7..2c639aee12cb 100644 |
1728 |
+--- a/net/ipv6/raw.c |
1729 |
++++ b/net/ipv6/raw.c |
1730 |
+@@ -731,6 +731,7 @@ static int raw6_getfrag(void *from, char *to, int offset, int len, int odd, |
1731 |
+ |
1732 |
+ static int rawv6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len) |
1733 |
+ { |
1734 |
++ struct ipv6_txoptions *opt_to_free = NULL; |
1735 |
+ struct ipv6_txoptions opt_space; |
1736 |
+ DECLARE_SOCKADDR(struct sockaddr_in6 *, sin6, msg->msg_name); |
1737 |
+ struct in6_addr *daddr, *final_p, final; |
1738 |
+@@ -837,8 +838,10 @@ static int rawv6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len) |
1739 |
+ if (!(opt->opt_nflen|opt->opt_flen)) |
1740 |
+ opt = NULL; |
1741 |
+ } |
1742 |
+- if (!opt) |
1743 |
+- opt = np->opt; |
1744 |
++ if (!opt) { |
1745 |
++ opt = txopt_get(np); |
1746 |
++ opt_to_free = opt; |
1747 |
++ } |
1748 |
+ if (flowlabel) |
1749 |
+ opt = fl6_merge_options(&opt_space, flowlabel, opt); |
1750 |
+ opt = ipv6_fixup_options(&opt_space, opt); |
1751 |
+@@ -901,6 +904,7 @@ done: |
1752 |
+ dst_release(dst); |
1753 |
+ out: |
1754 |
+ fl6_sock_release(flowlabel); |
1755 |
++ txopt_put(opt_to_free); |
1756 |
+ return err < 0 ? err : len; |
1757 |
+ do_confirm: |
1758 |
+ dst_confirm(dst); |
1759 |
+diff --git a/net/ipv6/reassembly.c b/net/ipv6/reassembly.c |
1760 |
+index 8ffa2c8cce77..9d1f6a28b284 100644 |
1761 |
+--- a/net/ipv6/reassembly.c |
1762 |
++++ b/net/ipv6/reassembly.c |
1763 |
+@@ -108,7 +108,10 @@ bool ip6_frag_match(const struct inet_frag_queue *q, const void *a) |
1764 |
+ return fq->id == arg->id && |
1765 |
+ fq->user == arg->user && |
1766 |
+ ipv6_addr_equal(&fq->saddr, arg->src) && |
1767 |
+- ipv6_addr_equal(&fq->daddr, arg->dst); |
1768 |
++ ipv6_addr_equal(&fq->daddr, arg->dst) && |
1769 |
++ (arg->iif == fq->iif || |
1770 |
++ !(ipv6_addr_type(arg->dst) & (IPV6_ADDR_MULTICAST | |
1771 |
++ IPV6_ADDR_LINKLOCAL))); |
1772 |
+ } |
1773 |
+ EXPORT_SYMBOL(ip6_frag_match); |
1774 |
+ |
1775 |
+@@ -180,7 +183,7 @@ static void ip6_frag_expire(unsigned long data) |
1776 |
+ |
1777 |
+ static struct frag_queue * |
1778 |
+ fq_find(struct net *net, __be32 id, const struct in6_addr *src, |
1779 |
+- const struct in6_addr *dst, u8 ecn) |
1780 |
++ const struct in6_addr *dst, int iif, u8 ecn) |
1781 |
+ { |
1782 |
+ struct inet_frag_queue *q; |
1783 |
+ struct ip6_create_arg arg; |
1784 |
+@@ -190,6 +193,7 @@ fq_find(struct net *net, __be32 id, const struct in6_addr *src, |
1785 |
+ arg.user = IP6_DEFRAG_LOCAL_DELIVER; |
1786 |
+ arg.src = src; |
1787 |
+ arg.dst = dst; |
1788 |
++ arg.iif = iif; |
1789 |
+ arg.ecn = ecn; |
1790 |
+ |
1791 |
+ hash = inet6_hash_frag(id, src, dst); |
1792 |
+@@ -551,7 +555,7 @@ static int ipv6_frag_rcv(struct sk_buff *skb) |
1793 |
+ } |
1794 |
+ |
1795 |
+ fq = fq_find(net, fhdr->identification, &hdr->saddr, &hdr->daddr, |
1796 |
+- ip6_frag_ecn(hdr)); |
1797 |
++ skb->dev ? skb->dev->ifindex : 0, ip6_frag_ecn(hdr)); |
1798 |
+ if (fq) { |
1799 |
+ int ret; |
1800 |
+ |
1801 |
+diff --git a/net/ipv6/syncookies.c b/net/ipv6/syncookies.c |
1802 |
+index 21bc2eb53c57..a4cf004f44d0 100644 |
1803 |
+--- a/net/ipv6/syncookies.c |
1804 |
++++ b/net/ipv6/syncookies.c |
1805 |
+@@ -242,7 +242,7 @@ struct sock *cookie_v6_check(struct sock *sk, struct sk_buff *skb) |
1806 |
+ memset(&fl6, 0, sizeof(fl6)); |
1807 |
+ fl6.flowi6_proto = IPPROTO_TCP; |
1808 |
+ fl6.daddr = ireq->ir_v6_rmt_addr; |
1809 |
+- final_p = fl6_update_dst(&fl6, np->opt, &final); |
1810 |
++ final_p = fl6_update_dst(&fl6, rcu_dereference(np->opt), &final); |
1811 |
+ fl6.saddr = ireq->ir_v6_loc_addr; |
1812 |
+ fl6.flowi6_oif = sk->sk_bound_dev_if; |
1813 |
+ fl6.flowi6_mark = ireq->ir_mark; |
1814 |
+diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c |
1815 |
+index e541d68dba8b..cfb27f56c62f 100644 |
1816 |
+--- a/net/ipv6/tcp_ipv6.c |
1817 |
++++ b/net/ipv6/tcp_ipv6.c |
1818 |
+@@ -121,6 +121,7 @@ static int tcp_v6_connect(struct sock *sk, struct sockaddr *uaddr, |
1819 |
+ struct ipv6_pinfo *np = inet6_sk(sk); |
1820 |
+ struct tcp_sock *tp = tcp_sk(sk); |
1821 |
+ struct in6_addr *saddr = NULL, *final_p, final; |
1822 |
++ struct ipv6_txoptions *opt; |
1823 |
+ struct rt6_info *rt; |
1824 |
+ struct flowi6 fl6; |
1825 |
+ struct dst_entry *dst; |
1826 |
+@@ -237,7 +238,8 @@ static int tcp_v6_connect(struct sock *sk, struct sockaddr *uaddr, |
1827 |
+ fl6.fl6_dport = usin->sin6_port; |
1828 |
+ fl6.fl6_sport = inet->inet_sport; |
1829 |
+ |
1830 |
+- final_p = fl6_update_dst(&fl6, np->opt, &final); |
1831 |
++ opt = rcu_dereference_protected(np->opt, sock_owned_by_user(sk)); |
1832 |
++ final_p = fl6_update_dst(&fl6, opt, &final); |
1833 |
+ |
1834 |
+ security_sk_classify_flow(sk, flowi6_to_flowi(&fl6)); |
1835 |
+ |
1836 |
+@@ -266,9 +268,9 @@ static int tcp_v6_connect(struct sock *sk, struct sockaddr *uaddr, |
1837 |
+ tcp_fetch_timewait_stamp(sk, dst); |
1838 |
+ |
1839 |
+ icsk->icsk_ext_hdr_len = 0; |
1840 |
+- if (np->opt) |
1841 |
+- icsk->icsk_ext_hdr_len = (np->opt->opt_flen + |
1842 |
+- np->opt->opt_nflen); |
1843 |
++ if (opt) |
1844 |
++ icsk->icsk_ext_hdr_len = opt->opt_flen + |
1845 |
++ opt->opt_nflen; |
1846 |
+ |
1847 |
+ tp->rx_opt.mss_clamp = IPV6_MIN_MTU - sizeof(struct tcphdr) - sizeof(struct ipv6hdr); |
1848 |
+ |
1849 |
+@@ -464,7 +466,8 @@ static int tcp_v6_send_synack(struct sock *sk, struct dst_entry *dst, |
1850 |
+ fl6->flowlabel = ip6_flowlabel(ipv6_hdr(ireq->pktopts)); |
1851 |
+ |
1852 |
+ skb_set_queue_mapping(skb, queue_mapping); |
1853 |
+- err = ip6_xmit(sk, skb, fl6, np->opt, np->tclass); |
1854 |
++ err = ip6_xmit(sk, skb, fl6, rcu_dereference(np->opt), |
1855 |
++ np->tclass); |
1856 |
+ err = net_xmit_eval(err); |
1857 |
+ } |
1858 |
+ |
1859 |
+@@ -994,6 +997,7 @@ static struct sock *tcp_v6_syn_recv_sock(struct sock *sk, struct sk_buff *skb, |
1860 |
+ struct inet_request_sock *ireq; |
1861 |
+ struct ipv6_pinfo *newnp, *np = inet6_sk(sk); |
1862 |
+ struct tcp6_sock *newtcp6sk; |
1863 |
++ struct ipv6_txoptions *opt; |
1864 |
+ struct inet_sock *newinet; |
1865 |
+ struct tcp_sock *newtp; |
1866 |
+ struct sock *newsk; |
1867 |
+@@ -1129,13 +1133,15 @@ static struct sock *tcp_v6_syn_recv_sock(struct sock *sk, struct sk_buff *skb, |
1868 |
+ but we make one more one thing there: reattach optmem |
1869 |
+ to newsk. |
1870 |
+ */ |
1871 |
+- if (np->opt) |
1872 |
+- newnp->opt = ipv6_dup_options(newsk, np->opt); |
1873 |
+- |
1874 |
++ opt = rcu_dereference(np->opt); |
1875 |
++ if (opt) { |
1876 |
++ opt = ipv6_dup_options(newsk, opt); |
1877 |
++ RCU_INIT_POINTER(newnp->opt, opt); |
1878 |
++ } |
1879 |
+ inet_csk(newsk)->icsk_ext_hdr_len = 0; |
1880 |
+- if (newnp->opt) |
1881 |
+- inet_csk(newsk)->icsk_ext_hdr_len = (newnp->opt->opt_nflen + |
1882 |
+- newnp->opt->opt_flen); |
1883 |
++ if (opt) |
1884 |
++ inet_csk(newsk)->icsk_ext_hdr_len = opt->opt_nflen + |
1885 |
++ opt->opt_flen; |
1886 |
+ |
1887 |
+ tcp_ca_openreq_child(newsk, dst); |
1888 |
+ |
1889 |
+diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c |
1890 |
+index e51fc3eee6db..7333f3575fc5 100644 |
1891 |
+--- a/net/ipv6/udp.c |
1892 |
++++ b/net/ipv6/udp.c |
1893 |
+@@ -1107,6 +1107,7 @@ int udpv6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len) |
1894 |
+ DECLARE_SOCKADDR(struct sockaddr_in6 *, sin6, msg->msg_name); |
1895 |
+ struct in6_addr *daddr, *final_p, final; |
1896 |
+ struct ipv6_txoptions *opt = NULL; |
1897 |
++ struct ipv6_txoptions *opt_to_free = NULL; |
1898 |
+ struct ip6_flowlabel *flowlabel = NULL; |
1899 |
+ struct flowi6 fl6; |
1900 |
+ struct dst_entry *dst; |
1901 |
+@@ -1260,8 +1261,10 @@ do_udp_sendmsg: |
1902 |
+ opt = NULL; |
1903 |
+ connected = 0; |
1904 |
+ } |
1905 |
+- if (!opt) |
1906 |
+- opt = np->opt; |
1907 |
++ if (!opt) { |
1908 |
++ opt = txopt_get(np); |
1909 |
++ opt_to_free = opt; |
1910 |
++ } |
1911 |
+ if (flowlabel) |
1912 |
+ opt = fl6_merge_options(&opt_space, flowlabel, opt); |
1913 |
+ opt = ipv6_fixup_options(&opt_space, opt); |
1914 |
+@@ -1370,6 +1373,7 @@ release_dst: |
1915 |
+ out: |
1916 |
+ dst_release(dst); |
1917 |
+ fl6_sock_release(flowlabel); |
1918 |
++ txopt_put(opt_to_free); |
1919 |
+ if (!err) |
1920 |
+ return len; |
1921 |
+ /* |
1922 |
+diff --git a/net/l2tp/l2tp_ip6.c b/net/l2tp/l2tp_ip6.c |
1923 |
+index d1ded3777815..0ce9da948ad7 100644 |
1924 |
+--- a/net/l2tp/l2tp_ip6.c |
1925 |
++++ b/net/l2tp/l2tp_ip6.c |
1926 |
+@@ -486,6 +486,7 @@ static int l2tp_ip6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len) |
1927 |
+ DECLARE_SOCKADDR(struct sockaddr_l2tpip6 *, lsa, msg->msg_name); |
1928 |
+ struct in6_addr *daddr, *final_p, final; |
1929 |
+ struct ipv6_pinfo *np = inet6_sk(sk); |
1930 |
++ struct ipv6_txoptions *opt_to_free = NULL; |
1931 |
+ struct ipv6_txoptions *opt = NULL; |
1932 |
+ struct ip6_flowlabel *flowlabel = NULL; |
1933 |
+ struct dst_entry *dst = NULL; |
1934 |
+@@ -575,8 +576,10 @@ static int l2tp_ip6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len) |
1935 |
+ opt = NULL; |
1936 |
+ } |
1937 |
+ |
1938 |
+- if (opt == NULL) |
1939 |
+- opt = np->opt; |
1940 |
++ if (!opt) { |
1941 |
++ opt = txopt_get(np); |
1942 |
++ opt_to_free = opt; |
1943 |
++ } |
1944 |
+ if (flowlabel) |
1945 |
+ opt = fl6_merge_options(&opt_space, flowlabel, opt); |
1946 |
+ opt = ipv6_fixup_options(&opt_space, opt); |
1947 |
+@@ -631,6 +634,7 @@ done: |
1948 |
+ dst_release(dst); |
1949 |
+ out: |
1950 |
+ fl6_sock_release(flowlabel); |
1951 |
++ txopt_put(opt_to_free); |
1952 |
+ |
1953 |
+ return err < 0 ? err : len; |
1954 |
+ |
1955 |
+diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c |
1956 |
+index 686e60187401..ebc39e66d704 100644 |
1957 |
+--- a/net/packet/af_packet.c |
1958 |
++++ b/net/packet/af_packet.c |
1959 |
+@@ -1524,6 +1524,20 @@ static void fanout_release(struct sock *sk) |
1960 |
+ mutex_unlock(&fanout_mutex); |
1961 |
+ } |
1962 |
+ |
1963 |
++static bool packet_extra_vlan_len_allowed(const struct net_device *dev, |
1964 |
++ struct sk_buff *skb) |
1965 |
++{ |
1966 |
++ /* Earlier code assumed this would be a VLAN pkt, double-check |
1967 |
++ * this now that we have the actual packet in hand. We can only |
1968 |
++ * do this check on Ethernet devices. |
1969 |
++ */ |
1970 |
++ if (unlikely(dev->type != ARPHRD_ETHER)) |
1971 |
++ return false; |
1972 |
++ |
1973 |
++ skb_reset_mac_header(skb); |
1974 |
++ return likely(eth_hdr(skb)->h_proto == htons(ETH_P_8021Q)); |
1975 |
++} |
1976 |
++ |
1977 |
+ static const struct proto_ops packet_ops; |
1978 |
+ |
1979 |
+ static const struct proto_ops packet_ops_spkt; |
1980 |
+@@ -1685,18 +1699,10 @@ retry: |
1981 |
+ goto retry; |
1982 |
+ } |
1983 |
+ |
1984 |
+- if (len > (dev->mtu + dev->hard_header_len + extra_len)) { |
1985 |
+- /* Earlier code assumed this would be a VLAN pkt, |
1986 |
+- * double-check this now that we have the actual |
1987 |
+- * packet in hand. |
1988 |
+- */ |
1989 |
+- struct ethhdr *ehdr; |
1990 |
+- skb_reset_mac_header(skb); |
1991 |
+- ehdr = eth_hdr(skb); |
1992 |
+- if (ehdr->h_proto != htons(ETH_P_8021Q)) { |
1993 |
+- err = -EMSGSIZE; |
1994 |
+- goto out_unlock; |
1995 |
+- } |
1996 |
++ if (len > (dev->mtu + dev->hard_header_len + extra_len) && |
1997 |
++ !packet_extra_vlan_len_allowed(dev, skb)) { |
1998 |
++ err = -EMSGSIZE; |
1999 |
++ goto out_unlock; |
2000 |
+ } |
2001 |
+ |
2002 |
+ skb->protocol = proto; |
2003 |
+@@ -2115,6 +2121,15 @@ static bool ll_header_truncated(const struct net_device *dev, int len) |
2004 |
+ return false; |
2005 |
+ } |
2006 |
+ |
2007 |
++static void tpacket_set_protocol(const struct net_device *dev, |
2008 |
++ struct sk_buff *skb) |
2009 |
++{ |
2010 |
++ if (dev->type == ARPHRD_ETHER) { |
2011 |
++ skb_reset_mac_header(skb); |
2012 |
++ skb->protocol = eth_hdr(skb)->h_proto; |
2013 |
++ } |
2014 |
++} |
2015 |
++ |
2016 |
+ static int tpacket_fill_skb(struct packet_sock *po, struct sk_buff *skb, |
2017 |
+ void *frame, struct net_device *dev, int size_max, |
2018 |
+ __be16 proto, unsigned char *addr, int hlen) |
2019 |
+@@ -2151,8 +2166,6 @@ static int tpacket_fill_skb(struct packet_sock *po, struct sk_buff *skb, |
2020 |
+ skb_reserve(skb, hlen); |
2021 |
+ skb_reset_network_header(skb); |
2022 |
+ |
2023 |
+- if (!packet_use_direct_xmit(po)) |
2024 |
+- skb_probe_transport_header(skb, 0); |
2025 |
+ if (unlikely(po->tp_tx_has_off)) { |
2026 |
+ int off_min, off_max, off; |
2027 |
+ off_min = po->tp_hdrlen - sizeof(struct sockaddr_ll); |
2028 |
+@@ -2198,6 +2211,8 @@ static int tpacket_fill_skb(struct packet_sock *po, struct sk_buff *skb, |
2029 |
+ dev->hard_header_len); |
2030 |
+ if (unlikely(err)) |
2031 |
+ return err; |
2032 |
++ if (!skb->protocol) |
2033 |
++ tpacket_set_protocol(dev, skb); |
2034 |
+ |
2035 |
+ data += dev->hard_header_len; |
2036 |
+ to_write -= dev->hard_header_len; |
2037 |
+@@ -2232,6 +2247,8 @@ static int tpacket_fill_skb(struct packet_sock *po, struct sk_buff *skb, |
2038 |
+ len = ((to_write > len_max) ? len_max : to_write); |
2039 |
+ } |
2040 |
+ |
2041 |
++ skb_probe_transport_header(skb, 0); |
2042 |
++ |
2043 |
+ return tp_len; |
2044 |
+ } |
2045 |
+ |
2046 |
+@@ -2276,12 +2293,13 @@ static int tpacket_snd(struct packet_sock *po, struct msghdr *msg) |
2047 |
+ if (unlikely(!(dev->flags & IFF_UP))) |
2048 |
+ goto out_put; |
2049 |
+ |
2050 |
+- reserve = dev->hard_header_len + VLAN_HLEN; |
2051 |
++ if (po->sk.sk_socket->type == SOCK_RAW) |
2052 |
++ reserve = dev->hard_header_len; |
2053 |
+ size_max = po->tx_ring.frame_size |
2054 |
+ - (po->tp_hdrlen - sizeof(struct sockaddr_ll)); |
2055 |
+ |
2056 |
+- if (size_max > dev->mtu + reserve) |
2057 |
+- size_max = dev->mtu + reserve; |
2058 |
++ if (size_max > dev->mtu + reserve + VLAN_HLEN) |
2059 |
++ size_max = dev->mtu + reserve + VLAN_HLEN; |
2060 |
+ |
2061 |
+ do { |
2062 |
+ ph = packet_current_frame(po, &po->tx_ring, |
2063 |
+@@ -2308,18 +2326,10 @@ static int tpacket_snd(struct packet_sock *po, struct msghdr *msg) |
2064 |
+ tp_len = tpacket_fill_skb(po, skb, ph, dev, size_max, proto, |
2065 |
+ addr, hlen); |
2066 |
+ if (likely(tp_len >= 0) && |
2067 |
+- tp_len > dev->mtu + dev->hard_header_len) { |
2068 |
+- struct ethhdr *ehdr; |
2069 |
+- /* Earlier code assumed this would be a VLAN pkt, |
2070 |
+- * double-check this now that we have the actual |
2071 |
+- * packet in hand. |
2072 |
+- */ |
2073 |
++ tp_len > dev->mtu + reserve && |
2074 |
++ !packet_extra_vlan_len_allowed(dev, skb)) |
2075 |
++ tp_len = -EMSGSIZE; |
2076 |
+ |
2077 |
+- skb_reset_mac_header(skb); |
2078 |
+- ehdr = eth_hdr(skb); |
2079 |
+- if (ehdr->h_proto != htons(ETH_P_8021Q)) |
2080 |
+- tp_len = -EMSGSIZE; |
2081 |
+- } |
2082 |
+ if (unlikely(tp_len < 0)) { |
2083 |
+ if (po->tp_loss) { |
2084 |
+ __packet_set_status(po, ph, |
2085 |
+@@ -2540,18 +2550,10 @@ static int packet_snd(struct socket *sock, struct msghdr *msg, size_t len) |
2086 |
+ |
2087 |
+ sock_tx_timestamp(sk, &skb_shinfo(skb)->tx_flags); |
2088 |
+ |
2089 |
+- if (!gso_type && (len > dev->mtu + reserve + extra_len)) { |
2090 |
+- /* Earlier code assumed this would be a VLAN pkt, |
2091 |
+- * double-check this now that we have the actual |
2092 |
+- * packet in hand. |
2093 |
+- */ |
2094 |
+- struct ethhdr *ehdr; |
2095 |
+- skb_reset_mac_header(skb); |
2096 |
+- ehdr = eth_hdr(skb); |
2097 |
+- if (ehdr->h_proto != htons(ETH_P_8021Q)) { |
2098 |
+- err = -EMSGSIZE; |
2099 |
+- goto out_free; |
2100 |
+- } |
2101 |
++ if (!gso_type && (len > dev->mtu + reserve + extra_len) && |
2102 |
++ !packet_extra_vlan_len_allowed(dev, skb)) { |
2103 |
++ err = -EMSGSIZE; |
2104 |
++ goto out_free; |
2105 |
+ } |
2106 |
+ |
2107 |
+ skb->protocol = proto; |
2108 |
+@@ -2582,8 +2584,8 @@ static int packet_snd(struct socket *sock, struct msghdr *msg, size_t len) |
2109 |
+ len += vnet_hdr_len; |
2110 |
+ } |
2111 |
+ |
2112 |
+- if (!packet_use_direct_xmit(po)) |
2113 |
+- skb_probe_transport_header(skb, reserve); |
2114 |
++ skb_probe_transport_header(skb, reserve); |
2115 |
++ |
2116 |
+ if (unlikely(extra_len == 4)) |
2117 |
+ skb->no_fcs = 1; |
2118 |
+ |
2119 |
+diff --git a/net/rds/connection.c b/net/rds/connection.c |
2120 |
+index 9d66705f9d41..da6da57e5f36 100644 |
2121 |
+--- a/net/rds/connection.c |
2122 |
++++ b/net/rds/connection.c |
2123 |
+@@ -187,12 +187,6 @@ new_conn: |
2124 |
+ } |
2125 |
+ } |
2126 |
+ |
2127 |
+- if (trans == NULL) { |
2128 |
+- kmem_cache_free(rds_conn_slab, conn); |
2129 |
+- conn = ERR_PTR(-ENODEV); |
2130 |
+- goto out; |
2131 |
+- } |
2132 |
+- |
2133 |
+ conn->c_trans = trans; |
2134 |
+ |
2135 |
+ ret = trans->conn_alloc(conn, gfp); |
2136 |
+diff --git a/net/rds/send.c b/net/rds/send.c |
2137 |
+index e9430f537f9c..7b30c0f3180d 100644 |
2138 |
+--- a/net/rds/send.c |
2139 |
++++ b/net/rds/send.c |
2140 |
+@@ -986,11 +986,13 @@ int rds_sendmsg(struct socket *sock, struct msghdr *msg, size_t payload_len) |
2141 |
+ release_sock(sk); |
2142 |
+ } |
2143 |
+ |
2144 |
+- /* racing with another thread binding seems ok here */ |
2145 |
++ lock_sock(sk); |
2146 |
+ if (daddr == 0 || rs->rs_bound_addr == 0) { |
2147 |
++ release_sock(sk); |
2148 |
+ ret = -ENOTCONN; /* XXX not a great errno */ |
2149 |
+ goto out; |
2150 |
+ } |
2151 |
++ release_sock(sk); |
2152 |
+ |
2153 |
+ /* size of rm including all sgs */ |
2154 |
+ ret = rds_rm_size(msg, payload_len); |
2155 |
+diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c |
2156 |
+index 1e1c89e51a11..d4b6f3682c14 100644 |
2157 |
+--- a/net/sched/sch_api.c |
2158 |
++++ b/net/sched/sch_api.c |
2159 |
+@@ -253,7 +253,8 @@ int qdisc_set_default(const char *name) |
2160 |
+ } |
2161 |
+ |
2162 |
+ /* We know handle. Find qdisc among all qdisc's attached to device |
2163 |
+- (root qdisc, all its children, children of children etc.) |
2164 |
++ * (root qdisc, all its children, children of children etc.) |
2165 |
++ * Note: caller either uses rtnl or rcu_read_lock() |
2166 |
+ */ |
2167 |
+ |
2168 |
+ static struct Qdisc *qdisc_match_from_root(struct Qdisc *root, u32 handle) |
2169 |
+@@ -264,7 +265,7 @@ static struct Qdisc *qdisc_match_from_root(struct Qdisc *root, u32 handle) |
2170 |
+ root->handle == handle) |
2171 |
+ return root; |
2172 |
+ |
2173 |
+- list_for_each_entry(q, &root->list, list) { |
2174 |
++ list_for_each_entry_rcu(q, &root->list, list) { |
2175 |
+ if (q->handle == handle) |
2176 |
+ return q; |
2177 |
+ } |
2178 |
+@@ -277,15 +278,18 @@ void qdisc_list_add(struct Qdisc *q) |
2179 |
+ struct Qdisc *root = qdisc_dev(q)->qdisc; |
2180 |
+ |
2181 |
+ WARN_ON_ONCE(root == &noop_qdisc); |
2182 |
+- list_add_tail(&q->list, &root->list); |
2183 |
++ ASSERT_RTNL(); |
2184 |
++ list_add_tail_rcu(&q->list, &root->list); |
2185 |
+ } |
2186 |
+ } |
2187 |
+ EXPORT_SYMBOL(qdisc_list_add); |
2188 |
+ |
2189 |
+ void qdisc_list_del(struct Qdisc *q) |
2190 |
+ { |
2191 |
+- if ((q->parent != TC_H_ROOT) && !(q->flags & TCQ_F_INGRESS)) |
2192 |
+- list_del(&q->list); |
2193 |
++ if ((q->parent != TC_H_ROOT) && !(q->flags & TCQ_F_INGRESS)) { |
2194 |
++ ASSERT_RTNL(); |
2195 |
++ list_del_rcu(&q->list); |
2196 |
++ } |
2197 |
+ } |
2198 |
+ EXPORT_SYMBOL(qdisc_list_del); |
2199 |
+ |
2200 |
+@@ -750,14 +754,18 @@ void qdisc_tree_decrease_qlen(struct Qdisc *sch, unsigned int n) |
2201 |
+ if (n == 0) |
2202 |
+ return; |
2203 |
+ drops = max_t(int, n, 0); |
2204 |
++ rcu_read_lock(); |
2205 |
+ while ((parentid = sch->parent)) { |
2206 |
+ if (TC_H_MAJ(parentid) == TC_H_MAJ(TC_H_INGRESS)) |
2207 |
+- return; |
2208 |
++ break; |
2209 |
+ |
2210 |
++ if (sch->flags & TCQ_F_NOPARENT) |
2211 |
++ break; |
2212 |
++ /* TODO: perform the search on a per txq basis */ |
2213 |
+ sch = qdisc_lookup(qdisc_dev(sch), TC_H_MAJ(parentid)); |
2214 |
+ if (sch == NULL) { |
2215 |
+- WARN_ON(parentid != TC_H_ROOT); |
2216 |
+- return; |
2217 |
++ WARN_ON_ONCE(parentid != TC_H_ROOT); |
2218 |
++ break; |
2219 |
+ } |
2220 |
+ cops = sch->ops->cl_ops; |
2221 |
+ if (cops->qlen_notify) { |
2222 |
+@@ -768,6 +776,7 @@ void qdisc_tree_decrease_qlen(struct Qdisc *sch, unsigned int n) |
2223 |
+ sch->q.qlen -= n; |
2224 |
+ __qdisc_qstats_drop(sch, drops); |
2225 |
+ } |
2226 |
++ rcu_read_unlock(); |
2227 |
+ } |
2228 |
+ EXPORT_SYMBOL(qdisc_tree_decrease_qlen); |
2229 |
+ |
2230 |
+@@ -941,7 +950,7 @@ qdisc_create(struct net_device *dev, struct netdev_queue *dev_queue, |
2231 |
+ } |
2232 |
+ lockdep_set_class(qdisc_lock(sch), &qdisc_tx_lock); |
2233 |
+ if (!netif_is_multiqueue(dev)) |
2234 |
+- sch->flags |= TCQ_F_ONETXQUEUE; |
2235 |
++ sch->flags |= TCQ_F_ONETXQUEUE | TCQ_F_NOPARENT; |
2236 |
+ } |
2237 |
+ |
2238 |
+ sch->handle = handle; |
2239 |
+diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c |
2240 |
+index 6efca30894aa..b453270be3fd 100644 |
2241 |
+--- a/net/sched/sch_generic.c |
2242 |
++++ b/net/sched/sch_generic.c |
2243 |
+@@ -743,7 +743,7 @@ static void attach_one_default_qdisc(struct net_device *dev, |
2244 |
+ return; |
2245 |
+ } |
2246 |
+ if (!netif_is_multiqueue(dev)) |
2247 |
+- qdisc->flags |= TCQ_F_ONETXQUEUE; |
2248 |
++ qdisc->flags |= TCQ_F_ONETXQUEUE | TCQ_F_NOPARENT; |
2249 |
+ } |
2250 |
+ dev_queue->qdisc_sleeping = qdisc; |
2251 |
+ } |
2252 |
+diff --git a/net/sched/sch_mq.c b/net/sched/sch_mq.c |
2253 |
+index f3cbaecd283a..3e82f047caaf 100644 |
2254 |
+--- a/net/sched/sch_mq.c |
2255 |
++++ b/net/sched/sch_mq.c |
2256 |
+@@ -63,7 +63,7 @@ static int mq_init(struct Qdisc *sch, struct nlattr *opt) |
2257 |
+ if (qdisc == NULL) |
2258 |
+ goto err; |
2259 |
+ priv->qdiscs[ntx] = qdisc; |
2260 |
+- qdisc->flags |= TCQ_F_ONETXQUEUE; |
2261 |
++ qdisc->flags |= TCQ_F_ONETXQUEUE | TCQ_F_NOPARENT; |
2262 |
+ } |
2263 |
+ |
2264 |
+ sch->flags |= TCQ_F_MQROOT; |
2265 |
+@@ -156,7 +156,7 @@ static int mq_graft(struct Qdisc *sch, unsigned long cl, struct Qdisc *new, |
2266 |
+ |
2267 |
+ *old = dev_graft_qdisc(dev_queue, new); |
2268 |
+ if (new) |
2269 |
+- new->flags |= TCQ_F_ONETXQUEUE; |
2270 |
++ new->flags |= TCQ_F_ONETXQUEUE | TCQ_F_NOPARENT; |
2271 |
+ if (dev->flags & IFF_UP) |
2272 |
+ dev_activate(dev); |
2273 |
+ return 0; |
2274 |
+diff --git a/net/sched/sch_mqprio.c b/net/sched/sch_mqprio.c |
2275 |
+index 3811a745452c..ad70ecf57ce7 100644 |
2276 |
+--- a/net/sched/sch_mqprio.c |
2277 |
++++ b/net/sched/sch_mqprio.c |
2278 |
+@@ -132,7 +132,7 @@ static int mqprio_init(struct Qdisc *sch, struct nlattr *opt) |
2279 |
+ goto err; |
2280 |
+ } |
2281 |
+ priv->qdiscs[i] = qdisc; |
2282 |
+- qdisc->flags |= TCQ_F_ONETXQUEUE; |
2283 |
++ qdisc->flags |= TCQ_F_ONETXQUEUE | TCQ_F_NOPARENT; |
2284 |
+ } |
2285 |
+ |
2286 |
+ /* If the mqprio options indicate that hardware should own |
2287 |
+@@ -209,7 +209,7 @@ static int mqprio_graft(struct Qdisc *sch, unsigned long cl, struct Qdisc *new, |
2288 |
+ *old = dev_graft_qdisc(dev_queue, new); |
2289 |
+ |
2290 |
+ if (new) |
2291 |
+- new->flags |= TCQ_F_ONETXQUEUE; |
2292 |
++ new->flags |= TCQ_F_ONETXQUEUE | TCQ_F_NOPARENT; |
2293 |
+ |
2294 |
+ if (dev->flags & IFF_UP) |
2295 |
+ dev_activate(dev); |
2296 |
+diff --git a/net/sctp/auth.c b/net/sctp/auth.c |
2297 |
+index 4f15b7d730e1..1543e39f47c3 100644 |
2298 |
+--- a/net/sctp/auth.c |
2299 |
++++ b/net/sctp/auth.c |
2300 |
+@@ -809,8 +809,8 @@ int sctp_auth_ep_set_hmacs(struct sctp_endpoint *ep, |
2301 |
+ if (!has_sha1) |
2302 |
+ return -EINVAL; |
2303 |
+ |
2304 |
+- memcpy(ep->auth_hmacs_list->hmac_ids, &hmacs->shmac_idents[0], |
2305 |
+- hmacs->shmac_num_idents * sizeof(__u16)); |
2306 |
++ for (i = 0; i < hmacs->shmac_num_idents; i++) |
2307 |
++ ep->auth_hmacs_list->hmac_ids[i] = htons(hmacs->shmac_idents[i]); |
2308 |
+ ep->auth_hmacs_list->param_hdr.length = htons(sizeof(sctp_paramhdr_t) + |
2309 |
+ hmacs->shmac_num_idents * sizeof(__u16)); |
2310 |
+ return 0; |
2311 |
+diff --git a/net/sctp/socket.c b/net/sctp/socket.c |
2312 |
+index 5f6c4e61325b..66d796075050 100644 |
2313 |
+--- a/net/sctp/socket.c |
2314 |
++++ b/net/sctp/socket.c |
2315 |
+@@ -7387,6 +7387,13 @@ struct proto sctp_prot = { |
2316 |
+ |
2317 |
+ #if IS_ENABLED(CONFIG_IPV6) |
2318 |
+ |
2319 |
++#include <net/transp_v6.h> |
2320 |
++static void sctp_v6_destroy_sock(struct sock *sk) |
2321 |
++{ |
2322 |
++ sctp_destroy_sock(sk); |
2323 |
++ inet6_destroy_sock(sk); |
2324 |
++} |
2325 |
++ |
2326 |
+ struct proto sctpv6_prot = { |
2327 |
+ .name = "SCTPv6", |
2328 |
+ .owner = THIS_MODULE, |
2329 |
+@@ -7396,7 +7403,7 @@ struct proto sctpv6_prot = { |
2330 |
+ .accept = sctp_accept, |
2331 |
+ .ioctl = sctp_ioctl, |
2332 |
+ .init = sctp_init_sock, |
2333 |
+- .destroy = sctp_destroy_sock, |
2334 |
++ .destroy = sctp_v6_destroy_sock, |
2335 |
+ .shutdown = sctp_shutdown, |
2336 |
+ .setsockopt = sctp_setsockopt, |
2337 |
+ .getsockopt = sctp_getsockopt, |
2338 |
+diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c |
2339 |
+index 76e66695621c..1975fd8d1c10 100644 |
2340 |
+--- a/net/unix/af_unix.c |
2341 |
++++ b/net/unix/af_unix.c |
2342 |
+@@ -316,6 +316,118 @@ found: |
2343 |
+ return s; |
2344 |
+ } |
2345 |
+ |
2346 |
++/* Support code for asymmetrically connected dgram sockets |
2347 |
++ * |
2348 |
++ * If a datagram socket is connected to a socket not itself connected |
2349 |
++ * to the first socket (eg, /dev/log), clients may only enqueue more |
2350 |
++ * messages if the present receive queue of the server socket is not |
2351 |
++ * "too large". This means there's a second writeability condition |
2352 |
++ * poll and sendmsg need to test. The dgram recv code will do a wake |
2353 |
++ * up on the peer_wait wait queue of a socket upon reception of a |
2354 |
++ * datagram which needs to be propagated to sleeping would-be writers |
2355 |
++ * since these might not have sent anything so far. This can't be |
2356 |
++ * accomplished via poll_wait because the lifetime of the server |
2357 |
++ * socket might be less than that of its clients if these break their |
2358 |
++ * association with it or if the server socket is closed while clients |
2359 |
++ * are still connected to it and there's no way to inform "a polling |
2360 |
++ * implementation" that it should let go of a certain wait queue |
2361 |
++ * |
2362 |
++ * In order to propagate a wake up, a wait_queue_t of the client |
2363 |
++ * socket is enqueued on the peer_wait queue of the server socket |
2364 |
++ * whose wake function does a wake_up on the ordinary client socket |
2365 |
++ * wait queue. This connection is established whenever a write (or |
2366 |
++ * poll for write) hit the flow control condition and broken when the |
2367 |
++ * association to the server socket is dissolved or after a wake up |
2368 |
++ * was relayed. |
2369 |
++ */ |
2370 |
++ |
2371 |
++static int unix_dgram_peer_wake_relay(wait_queue_t *q, unsigned mode, int flags, |
2372 |
++ void *key) |
2373 |
++{ |
2374 |
++ struct unix_sock *u; |
2375 |
++ wait_queue_head_t *u_sleep; |
2376 |
++ |
2377 |
++ u = container_of(q, struct unix_sock, peer_wake); |
2378 |
++ |
2379 |
++ __remove_wait_queue(&unix_sk(u->peer_wake.private)->peer_wait, |
2380 |
++ q); |
2381 |
++ u->peer_wake.private = NULL; |
2382 |
++ |
2383 |
++ /* relaying can only happen while the wq still exists */ |
2384 |
++ u_sleep = sk_sleep(&u->sk); |
2385 |
++ if (u_sleep) |
2386 |
++ wake_up_interruptible_poll(u_sleep, key); |
2387 |
++ |
2388 |
++ return 0; |
2389 |
++} |
2390 |
++ |
2391 |
++static int unix_dgram_peer_wake_connect(struct sock *sk, struct sock *other) |
2392 |
++{ |
2393 |
++ struct unix_sock *u, *u_other; |
2394 |
++ int rc; |
2395 |
++ |
2396 |
++ u = unix_sk(sk); |
2397 |
++ u_other = unix_sk(other); |
2398 |
++ rc = 0; |
2399 |
++ spin_lock(&u_other->peer_wait.lock); |
2400 |
++ |
2401 |
++ if (!u->peer_wake.private) { |
2402 |
++ u->peer_wake.private = other; |
2403 |
++ __add_wait_queue(&u_other->peer_wait, &u->peer_wake); |
2404 |
++ |
2405 |
++ rc = 1; |
2406 |
++ } |
2407 |
++ |
2408 |
++ spin_unlock(&u_other->peer_wait.lock); |
2409 |
++ return rc; |
2410 |
++} |
2411 |
++ |
2412 |
++static void unix_dgram_peer_wake_disconnect(struct sock *sk, |
2413 |
++ struct sock *other) |
2414 |
++{ |
2415 |
++ struct unix_sock *u, *u_other; |
2416 |
++ |
2417 |
++ u = unix_sk(sk); |
2418 |
++ u_other = unix_sk(other); |
2419 |
++ spin_lock(&u_other->peer_wait.lock); |
2420 |
++ |
2421 |
++ if (u->peer_wake.private == other) { |
2422 |
++ __remove_wait_queue(&u_other->peer_wait, &u->peer_wake); |
2423 |
++ u->peer_wake.private = NULL; |
2424 |
++ } |
2425 |
++ |
2426 |
++ spin_unlock(&u_other->peer_wait.lock); |
2427 |
++} |
2428 |
++ |
2429 |
++static void unix_dgram_peer_wake_disconnect_wakeup(struct sock *sk, |
2430 |
++ struct sock *other) |
2431 |
++{ |
2432 |
++ unix_dgram_peer_wake_disconnect(sk, other); |
2433 |
++ wake_up_interruptible_poll(sk_sleep(sk), |
2434 |
++ POLLOUT | |
2435 |
++ POLLWRNORM | |
2436 |
++ POLLWRBAND); |
2437 |
++} |
2438 |
++ |
2439 |
++/* preconditions: |
2440 |
++ * - unix_peer(sk) == other |
2441 |
++ * - association is stable |
2442 |
++ */ |
2443 |
++static int unix_dgram_peer_wake_me(struct sock *sk, struct sock *other) |
2444 |
++{ |
2445 |
++ int connected; |
2446 |
++ |
2447 |
++ connected = unix_dgram_peer_wake_connect(sk, other); |
2448 |
++ |
2449 |
++ if (unix_recvq_full(other)) |
2450 |
++ return 1; |
2451 |
++ |
2452 |
++ if (connected) |
2453 |
++ unix_dgram_peer_wake_disconnect(sk, other); |
2454 |
++ |
2455 |
++ return 0; |
2456 |
++} |
2457 |
++ |
2458 |
+ static inline int unix_writable(struct sock *sk) |
2459 |
+ { |
2460 |
+ return (atomic_read(&sk->sk_wmem_alloc) << 2) <= sk->sk_sndbuf; |
2461 |
+@@ -420,6 +532,8 @@ static void unix_release_sock(struct sock *sk, int embrion) |
2462 |
+ skpair->sk_state_change(skpair); |
2463 |
+ sk_wake_async(skpair, SOCK_WAKE_WAITD, POLL_HUP); |
2464 |
+ } |
2465 |
++ |
2466 |
++ unix_dgram_peer_wake_disconnect(sk, skpair); |
2467 |
+ sock_put(skpair); /* It may now die */ |
2468 |
+ unix_peer(sk) = NULL; |
2469 |
+ } |
2470 |
+@@ -648,6 +762,7 @@ static struct sock *unix_create1(struct net *net, struct socket *sock) |
2471 |
+ INIT_LIST_HEAD(&u->link); |
2472 |
+ mutex_init(&u->readlock); /* single task reading lock */ |
2473 |
+ init_waitqueue_head(&u->peer_wait); |
2474 |
++ init_waitqueue_func_entry(&u->peer_wake, unix_dgram_peer_wake_relay); |
2475 |
+ unix_insert_socket(unix_sockets_unbound(sk), sk); |
2476 |
+ out: |
2477 |
+ if (sk == NULL) |
2478 |
+@@ -1015,6 +1130,8 @@ restart: |
2479 |
+ if (unix_peer(sk)) { |
2480 |
+ struct sock *old_peer = unix_peer(sk); |
2481 |
+ unix_peer(sk) = other; |
2482 |
++ unix_dgram_peer_wake_disconnect_wakeup(sk, old_peer); |
2483 |
++ |
2484 |
+ unix_state_double_unlock(sk, other); |
2485 |
+ |
2486 |
+ if (other != old_peer) |
2487 |
+@@ -1453,6 +1570,7 @@ static int unix_dgram_sendmsg(struct socket *sock, struct msghdr *msg, |
2488 |
+ struct scm_cookie scm; |
2489 |
+ int max_level; |
2490 |
+ int data_len = 0; |
2491 |
++ int sk_locked; |
2492 |
+ |
2493 |
+ wait_for_unix_gc(); |
2494 |
+ err = scm_send(sock, msg, &scm, false); |
2495 |
+@@ -1532,12 +1650,14 @@ restart: |
2496 |
+ goto out_free; |
2497 |
+ } |
2498 |
+ |
2499 |
++ sk_locked = 0; |
2500 |
+ unix_state_lock(other); |
2501 |
++restart_locked: |
2502 |
+ err = -EPERM; |
2503 |
+ if (!unix_may_send(sk, other)) |
2504 |
+ goto out_unlock; |
2505 |
+ |
2506 |
+- if (sock_flag(other, SOCK_DEAD)) { |
2507 |
++ if (unlikely(sock_flag(other, SOCK_DEAD))) { |
2508 |
+ /* |
2509 |
+ * Check with 1003.1g - what should |
2510 |
+ * datagram error |
2511 |
+@@ -1545,10 +1665,14 @@ restart: |
2512 |
+ unix_state_unlock(other); |
2513 |
+ sock_put(other); |
2514 |
+ |
2515 |
++ if (!sk_locked) |
2516 |
++ unix_state_lock(sk); |
2517 |
++ |
2518 |
+ err = 0; |
2519 |
+- unix_state_lock(sk); |
2520 |
+ if (unix_peer(sk) == other) { |
2521 |
+ unix_peer(sk) = NULL; |
2522 |
++ unix_dgram_peer_wake_disconnect_wakeup(sk, other); |
2523 |
++ |
2524 |
+ unix_state_unlock(sk); |
2525 |
+ |
2526 |
+ unix_dgram_disconnected(sk, other); |
2527 |
+@@ -1574,21 +1698,38 @@ restart: |
2528 |
+ goto out_unlock; |
2529 |
+ } |
2530 |
+ |
2531 |
+- if (unix_peer(other) != sk && unix_recvq_full(other)) { |
2532 |
+- if (!timeo) { |
2533 |
+- err = -EAGAIN; |
2534 |
+- goto out_unlock; |
2535 |
++ if (unlikely(unix_peer(other) != sk && unix_recvq_full(other))) { |
2536 |
++ if (timeo) { |
2537 |
++ timeo = unix_wait_for_peer(other, timeo); |
2538 |
++ |
2539 |
++ err = sock_intr_errno(timeo); |
2540 |
++ if (signal_pending(current)) |
2541 |
++ goto out_free; |
2542 |
++ |
2543 |
++ goto restart; |
2544 |
+ } |
2545 |
+ |
2546 |
+- timeo = unix_wait_for_peer(other, timeo); |
2547 |
++ if (!sk_locked) { |
2548 |
++ unix_state_unlock(other); |
2549 |
++ unix_state_double_lock(sk, other); |
2550 |
++ } |
2551 |
+ |
2552 |
+- err = sock_intr_errno(timeo); |
2553 |
+- if (signal_pending(current)) |
2554 |
+- goto out_free; |
2555 |
++ if (unix_peer(sk) != other || |
2556 |
++ unix_dgram_peer_wake_me(sk, other)) { |
2557 |
++ err = -EAGAIN; |
2558 |
++ sk_locked = 1; |
2559 |
++ goto out_unlock; |
2560 |
++ } |
2561 |
+ |
2562 |
+- goto restart; |
2563 |
++ if (!sk_locked) { |
2564 |
++ sk_locked = 1; |
2565 |
++ goto restart_locked; |
2566 |
++ } |
2567 |
+ } |
2568 |
+ |
2569 |
++ if (unlikely(sk_locked)) |
2570 |
++ unix_state_unlock(sk); |
2571 |
++ |
2572 |
+ if (sock_flag(other, SOCK_RCVTSTAMP)) |
2573 |
+ __net_timestamp(skb); |
2574 |
+ maybe_add_creds(skb, sock, other); |
2575 |
+@@ -1602,6 +1743,8 @@ restart: |
2576 |
+ return len; |
2577 |
+ |
2578 |
+ out_unlock: |
2579 |
++ if (sk_locked) |
2580 |
++ unix_state_unlock(sk); |
2581 |
+ unix_state_unlock(other); |
2582 |
+ out_free: |
2583 |
+ kfree_skb(skb); |
2584 |
+@@ -2245,14 +2388,16 @@ static unsigned int unix_dgram_poll(struct file *file, struct socket *sock, |
2585 |
+ return mask; |
2586 |
+ |
2587 |
+ writable = unix_writable(sk); |
2588 |
+- other = unix_peer_get(sk); |
2589 |
+- if (other) { |
2590 |
+- if (unix_peer(other) != sk) { |
2591 |
+- sock_poll_wait(file, &unix_sk(other)->peer_wait, wait); |
2592 |
+- if (unix_recvq_full(other)) |
2593 |
+- writable = 0; |
2594 |
+- } |
2595 |
+- sock_put(other); |
2596 |
++ if (writable) { |
2597 |
++ unix_state_lock(sk); |
2598 |
++ |
2599 |
++ other = unix_peer(sk); |
2600 |
++ if (other && unix_peer(other) != sk && |
2601 |
++ unix_recvq_full(other) && |
2602 |
++ unix_dgram_peer_wake_me(sk, other)) |
2603 |
++ writable = 0; |
2604 |
++ |
2605 |
++ unix_state_unlock(sk); |
2606 |
+ } |
2607 |
+ |
2608 |
+ if (writable) |
2609 |
+diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c |
2610 |
+index 225b78b4ef12..d02eccd51f6e 100644 |
2611 |
+--- a/sound/pci/hda/patch_hdmi.c |
2612 |
++++ b/sound/pci/hda/patch_hdmi.c |
2613 |
+@@ -48,8 +48,9 @@ MODULE_PARM_DESC(static_hdmi_pcm, "Don't restrict PCM parameters per ELD info"); |
2614 |
+ #define is_haswell(codec) ((codec)->core.vendor_id == 0x80862807) |
2615 |
+ #define is_broadwell(codec) ((codec)->core.vendor_id == 0x80862808) |
2616 |
+ #define is_skylake(codec) ((codec)->core.vendor_id == 0x80862809) |
2617 |
++#define is_broxton(codec) ((codec)->core.vendor_id == 0x8086280a) |
2618 |
+ #define is_haswell_plus(codec) (is_haswell(codec) || is_broadwell(codec) \ |
2619 |
+- || is_skylake(codec)) |
2620 |
++ || is_skylake(codec) || is_broxton(codec)) |
2621 |
+ |
2622 |
+ #define is_valleyview(codec) ((codec)->core.vendor_id == 0x80862882) |
2623 |
+ #define is_cherryview(codec) ((codec)->core.vendor_id == 0x80862883) |
2624 |
+diff --git a/tools/net/Makefile b/tools/net/Makefile |
2625 |
+index ee577ea03ba5..ddf888010652 100644 |
2626 |
+--- a/tools/net/Makefile |
2627 |
++++ b/tools/net/Makefile |
2628 |
+@@ -4,6 +4,9 @@ CC = gcc |
2629 |
+ LEX = flex |
2630 |
+ YACC = bison |
2631 |
+ |
2632 |
++CFLAGS += -Wall -O2 |
2633 |
++CFLAGS += -D__EXPORTED_HEADERS__ -I../../include/uapi -I../../include |
2634 |
++ |
2635 |
+ %.yacc.c: %.y |
2636 |
+ $(YACC) -o $@ -d $< |
2637 |
+ |
2638 |
+@@ -12,15 +15,13 @@ YACC = bison |
2639 |
+ |
2640 |
+ all : bpf_jit_disasm bpf_dbg bpf_asm |
2641 |
+ |
2642 |
+-bpf_jit_disasm : CFLAGS = -Wall -O2 -DPACKAGE='bpf_jit_disasm' |
2643 |
++bpf_jit_disasm : CFLAGS += -DPACKAGE='bpf_jit_disasm' |
2644 |
+ bpf_jit_disasm : LDLIBS = -lopcodes -lbfd -ldl |
2645 |
+ bpf_jit_disasm : bpf_jit_disasm.o |
2646 |
+ |
2647 |
+-bpf_dbg : CFLAGS = -Wall -O2 |
2648 |
+ bpf_dbg : LDLIBS = -lreadline |
2649 |
+ bpf_dbg : bpf_dbg.o |
2650 |
+ |
2651 |
+-bpf_asm : CFLAGS = -Wall -O2 -I. |
2652 |
+ bpf_asm : LDLIBS = |
2653 |
+ bpf_asm : bpf_asm.o bpf_exp.yacc.o bpf_exp.lex.o |
2654 |
+ bpf_exp.lex.o : bpf_exp.yacc.c |