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| author |   Linus Torvalds <torvalds@linux-foundation.org> | 2020-09-02 11:29:34 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-09-02 11:29:34 -0700 |
| commit | 54e54d58184e34887cc40d0bc83720dbaf57db1a (patch) | |
| tree | 63339d4d456b89c11b01da35b3b84542eca492cb /fs | |
| parent | Merge tag 'perf-tools-fixes-for-v5.9-2020-09-01' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux (diff) | |
| parent | fix regression in "epoll: Keep a reference on files added to the check list" (diff) | |
| download | linux-dev-54e54d58184e34887cc40d0bc83720dbaf57db1a.tar.xz linux-dev-54e54d58184e34887cc40d0bc83720dbaf57db1a.zip | |
Merge branch 'work.epoll' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull epoll fixup from Al Viro:
"Fixup for epoll regression; there's a better solution longer term, but
this is the least intrusive fix"
* 'work.epoll' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
fix regression in "epoll: Keep a reference on files added to the check list"
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/eventpoll.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/fs/eventpoll.c b/fs/eventpoll.c index e0decff22ae2..8107e06d7f6f 100644 --- a/fs/eventpoll.c +++ b/fs/eventpoll.c @@ -1995,9 +1995,9 @@ static int ep_loop_check_proc(void *priv, void *cookie, int call_nests) * during ep_insert(). */ if (list_empty(&epi->ffd.file->f_tfile_llink)) { - get_file(epi->ffd.file); - list_add(&epi->ffd.file->f_tfile_llink, - &tfile_check_list); + if (get_file_rcu(epi->ffd.file)) + list_add(&epi->ffd.file->f_tfile_llink, + &tfile_check_list); } } } |