include/linux/pid.h: use for_each_thread() in do_each_pid_thread()
authorTetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Mon, 27 Feb 2017 22:27:37 +0000 (14:27 -0800)
committerLinus Torvalds <torvalds@linux-foundation.org>
Tue, 28 Feb 2017 02:43:45 +0000 (18:43 -0800)
commite3b5a342ab9643b4079c8d417d90519388469341
treedf7915864309651c20887fe3f9d7cf20fb9b8ada
parent369f2679f7e73996bf29ecd3ec79df3cce1be27d
include/linux/pid.h: use for_each_thread() in do_each_pid_thread()

while_each_pid_thread() is using while_each_thread(), which is unsafe
under RCU lock according to commit 0c740d0afc3b ("introduce
for_each_thread() to replace the buggy while_each_thread()").  Use
for_each_thread() in do_each_pid_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/1486041779-4401-2-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>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
include/linux/pid.h