tree: https://git.kernel.org/pub/scm/linux/kernel/git/josef/btrfs-next.git blk-iolatency head: 657e770d4d6e3b03c3d4b96e427b30d6f766e2e2 commit: 7f1e4ea0a7071711f43deaed15b123bcf0a3ee8f [8/13] blk-stat: export helpers for modifying blk_rq_stat config: x86_64-randconfig-x011-201820 (attached as .config) compiler: gcc-7 (Debian 7.3.0-16) 7.3.0 reproduce: git checkout 7f1e4ea0a7071711f43deaed15b123bcf0a3ee8f # save the attached .config to linux build tree make ARCH=x86_64
All errors (new ones prefixed by >>):
In file included from include/linux/blkdev.h:21:0,
from include/linux/backing-dev.h:15,
from mm/shmem.c:57:
include/linux/bio.h:556:55: warning: 'struct blkcg_gq' declared inside
parameter list will not be visible outside of this definition or declaration
static int bio_associate_blkg(struct bio *bio, struct blkcg_gq *blkg) {
return 0; }
^~~~~~~~
mm/shmem.c: In function 'shmem_unuse':
>> mm/shmem.c:1222:10: error: implicit declaration of function
>> 'mem_cgroup_try_charge_delay'; did you mean 'mem_cgroup_try_charge_swap'?
>> [-Werror=implicit-function-declaration]
error = mem_cgroup_try_charge_delay(page, current->mm, GFP_KERNEL,
^~~~~~~~~~~~~~~~~~~~~~~~~~~
mem_cgroup_try_charge_swap
In file included from include/linux/backing-dev.h:17:0,
from mm/shmem.c:57:
At top level:
include/linux/blk-cgroup.h:832:13: warning: 'blkcg_schedule_throttle'
defined but not used [-Wunused-function]
static void blkcg_schedule_throttle(struct request_queue *q, bool
use_memdelay) { }
^~~~~~~~~~~~~~~~~~~~~~~
include/linux/blk-cgroup.h:831:13: warning: 'blkcg_add_delay' defined but
not used [-Wunused-function]
static void blkcg_add_delay(struct blkcg_gq *blkg, u64 now, u64 delta) { }
^~~~~~~~~~~~~~~
In file included from include/linux/blkdev.h:21:0,
from include/linux/backing-dev.h:15,
from mm/shmem.c:57:
include/linux/bio.h:556:12: warning: 'bio_associate_blkg' defined but not
used [-Wunused-function]
static int bio_associate_blkg(struct bio *bio, struct blkcg_gq *blkg) {
return 0; }
^~~~~~~~~~~~~~~~~~
cc1: some warnings being treated as errors
--
mm/memory.c: In function 'wp_page_copy':
>> mm/memory.c:2497:6: error: implicit declaration of function
>> 'mem_cgroup_try_charge_delay'; did you mean 'mem_cgroup_try_charge_swap'?
>> [-Werror=implicit-function-declaration]
if (mem_cgroup_try_charge_delay(new_page, mm, GFP_KERNEL, &memcg, false))
^~~~~~~~~~~~~~~~~~~~~~~~~~~
mem_cgroup_try_charge_swap
cc1: some warnings being treated as errors
vim +1222 mm/shmem.c
^1da177e Linus Torvalds 2005-04-16 1199
^1da177e Linus Torvalds 2005-04-16 1200 /*
46f65ec1 Hugh Dickins 2011-08-03 1201 * Search through swapped inodes
to find and replace swap by page.
^1da177e Linus Torvalds 2005-04-16 1202 */
41ffe5d5 Hugh Dickins 2011-08-03 1203 int shmem_unuse(swp_entry_t swap,
struct page *page)
^1da177e Linus Torvalds 2005-04-16 1204 {
41ffe5d5 Hugh Dickins 2011-08-03 1205 struct list_head *this, *next;
^1da177e Linus Torvalds 2005-04-16 1206 struct shmem_inode_info *info;
00501b53 Johannes Weiner 2014-08-08 1207 struct mem_cgroup *memcg;
bde05d1c Hugh Dickins 2012-05-29 1208 int error = 0;
bde05d1c Hugh Dickins 2012-05-29 1209
bde05d1c Hugh Dickins 2012-05-29 1210 /*
bde05d1c Hugh Dickins 2012-05-29 1211 * There's a faint possibility
that swap page was replaced before
0142ef6c Hugh Dickins 2012-06-07 1212 * caller locked it: caller
will come back later with the right page.
bde05d1c Hugh Dickins 2012-05-29 1213 */
0142ef6c Hugh Dickins 2012-06-07 1214 if
(unlikely(!PageSwapCache(page) || page_private(page) != swap.val))
bde05d1c Hugh Dickins 2012-05-29 1215 goto out;
778dd893 Hugh Dickins 2011-05-11 1216
778dd893 Hugh Dickins 2011-05-11 1217 /*
778dd893 Hugh Dickins 2011-05-11 1218 * Charge page using GFP_KERNEL
while we can wait, before taking
778dd893 Hugh Dickins 2011-05-11 1219 * the shmem_swaplist_mutex
which might hold up shmem_writepage().
778dd893 Hugh Dickins 2011-05-11 1220 * Charged back to the user
(not to caller) when swap account is used.
778dd893 Hugh Dickins 2011-05-11 1221 */
90f955bb Tejun Heo 2018-04-16 @1222 error =
mem_cgroup_try_charge_delay(page, current->mm, GFP_KERNEL,
90f955bb Tejun Heo 2018-04-16 1223
&memcg, false);
778dd893 Hugh Dickins 2011-05-11 1224 if (error)
778dd893 Hugh Dickins 2011-05-11 1225 goto out;
46f65ec1 Hugh Dickins 2011-08-03 1226 /* No radix_tree_preload: swap
entry keeps a place for page in tree */
00501b53 Johannes Weiner 2014-08-08 1227 error = -EAGAIN;
^1da177e Linus Torvalds 2005-04-16 1228
cb5f7b9a Hugh Dickins 2008-02-04 1229
mutex_lock(&shmem_swaplist_mutex);
41ffe5d5 Hugh Dickins 2011-08-03 1230 list_for_each_safe(this, next,
&shmem_swaplist) {
41ffe5d5 Hugh Dickins 2011-08-03 1231 info = list_entry(this,
struct shmem_inode_info, swaplist);
285b2c4f Hugh Dickins 2011-08-03 1232 if (info->swapped)
00501b53 Johannes Weiner 2014-08-08 1233 error =
shmem_unuse_inode(info, swap, &page);
6922c0c7 Hugh Dickins 2011-08-03 1234 else
6922c0c7 Hugh Dickins 2011-08-03 1235
list_del_init(&info->swaplist);
cb5f7b9a Hugh Dickins 2008-02-04 1236 cond_resched();
00501b53 Johannes Weiner 2014-08-08 1237 if (error != -EAGAIN)
778dd893 Hugh Dickins 2011-05-11 1238 break;
00501b53 Johannes Weiner 2014-08-08 1239 /* found nothing in
this: move on to search the next */
^1da177e Linus Torvalds 2005-04-16 1240 }
cb5f7b9a Hugh Dickins 2008-02-04 1241
mutex_unlock(&shmem_swaplist_mutex);
778dd893 Hugh Dickins 2011-05-11 1242
00501b53 Johannes Weiner 2014-08-08 1243 if (error) {
00501b53 Johannes Weiner 2014-08-08 1244 if (error != -ENOMEM)
00501b53 Johannes Weiner 2014-08-08 1245 error = 0;
f627c2f5 Kirill A. Shutemov 2016-01-15 1246
mem_cgroup_cancel_charge(page, memcg, false);
00501b53 Johannes Weiner 2014-08-08 1247 } else
f627c2f5 Kirill A. Shutemov 2016-01-15 1248
mem_cgroup_commit_charge(page, memcg, true, false);
778dd893 Hugh Dickins 2011-05-11 1249 out:
aaa46865 Hugh Dickins 2009-12-14 1250 unlock_page(page);
09cbfeaf Kirill A. Shutemov 2016-04-01 1251 put_page(page);
778dd893 Hugh Dickins 2011-05-11 1252 return error;
^1da177e Linus Torvalds 2005-04-16 1253 }
^1da177e Linus Torvalds 2005-04-16 1254
:::::: The code at line 1222 was first introduced by commit
:::::: 90f955bbc57765617e3e99f784f3239c3d8f0360 memcontrol: schedule throttling
if we are congested
:::::: TO: Tejun Heo <t...@kernel.org>
:::::: CC: Josef Bacik <jba...@fb.com>
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
.config.gz
Description: application/gzip
