Commit 91ed5015 authored by Benjamin Segall's avatar Benjamin Segall Committed by sanglipeng
Browse files

epoll: ep_autoremove_wake_function should use list_del_init_careful

stable inclusion
from stable-v5.10.185
commit 370f5d98ffe58a95e31506390bc0704b9ddb05d4
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I8L5XP

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=370f5d98ffe58a95e31506390bc0704b9ddb05d4

--------------------------------

commit 2192bba0 upstream.

autoremove_wake_function uses list_del_init_careful, so should epoll's
more aggressive variant.  It only doesn't because it was copied from an
older wait.c rather than the most recent.

[bsegall@google.com: add comment]
  Link: https://lkml.kernel.org/r/xm26bki0ulsr.fsf_-_@google.com
Link: https://lkml.kernel.org/r/xm26pm6hvfer.fsf@google.com


Fixes: a16ceb13 ("epoll: autoremove wakers even more aggressively")
Signed-off-by: default avatarBen Segall <bsegall@google.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Christian Brauner <brauner@kernel.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: default avatarsanglipeng <sanglipeng1@jd.com>
parent e6b2cf69
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