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| author | Jaegeuk Kim <jaegeuk@kernel.org> | 2020-08-03 19:37:12 -0700 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2020-08-03 20:54:58 -0700 |
| commit | 828add774f0d2bf930cdeca6c982c1fbcdd846bb (patch) | |
| tree | e103c163cd6ad61ac681c8bc9ea30dfcc357bf04 /lib/bug.c | |
| parent | 9feffe14661bb6f5200bc5712999378832d129c5 (diff) | |
f2fs: prepare a waiter before entering io_schedule
This is to avoid sleep() in the waiter thread.
[ 20.157753] ------------[ cut here ]------------
[ 20.158393] do not call blocking ops when !TASK_RUNNING; state=2 set at [<0000000096354225>] prepare_to_wait+0xcd/0x430
[ 20.159858] WARNING: CPU: 1 PID: 1152 at kernel/sched/core.c:7142 __might_sleep+0x149/0x1a0
...
[ 20.176110] __submit_merged_write_cond+0x191/0x310
[ 20.176739] f2fs_submit_merged_write+0x18/0x20
[ 20.177323] f2fs_wait_on_all_pages+0x269/0x2d0
[ 20.177899] ? block_operations+0x980/0x980
[ 20.178441] ? __kasan_check_read+0x11/0x20
[ 20.178975] ? finish_wait+0x260/0x260
[ 20.179488] ? percpu_counter_set+0x147/0x230
[ 20.180049] do_checkpoint+0x1757/0x2a50
[ 20.180558] f2fs_write_checkpoint+0x840/0xaf0
[ 20.181126] f2fs_sync_fs+0x287/0x4a0
Reported-by: Eric Biggers <ebiggers@kernel.org>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'lib/bug.c')
0 files changed, 0 insertions, 0 deletions