| commit | 612dafabb6a0fa62e9b86f11da5d37ee11dea28f | [log] [tgz] |
|---|---|---|
| author | Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> | Wed Feb 22 15:40:50 2017 -0800 |
| committer | Linus Torvalds <torvalds@linux-foundation.org> | Wed Feb 22 16:41:27 2017 -0800 |
| tree | aa28468a75fa6fa60717e1904edadd9e888e3fef | |
| parent | 6302666d2ef135be46ca34226791afea275f62d1 [diff] |
block: use for_each_thread() in sys_ioprio_set()/sys_ioprio_get()
IOPRIO_WHO_USER case in sys_ioprio_set()/sys_ioprio_get() are using
while_each_thread(), which is unsafe under RCU lock according to commit
0c740d0afc3bff0a ("introduce for_each_thread() to replace the buggy
while_each_thread()"). Use for_each_thread() (via
for_each_process_thread()) which is safe under RCU lock.
Link: http://lkml.kernel.org/r/201702011947.DBD56740.OMVHOLOtSJFFFQ@I-love.SAKURA.ne.jp
Link: http://lkml.kernel.org/r/1486041779-4401-1-git-send-email-penguin-kernel@I-love.SAKURA.ne.jp
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>