diff options
| author | Xie Yongji <xieyongji@bytedance.com> | 2021-09-13 14:19:28 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-12-14 12:57:22 +0300 |
| commit | 4a7c65506473dc1415e6eadcea16e53d12740f6b (patch) | |
| tree | bfb60e9fa7899fc056b38c27c9ea79de2495b82e /fs/aio.c | |
| parent | d99d861ce3ef9b6acbcbbd60406bda2da34df91e (diff) | |
| download | linux-4a7c65506473dc1415e6eadcea16e53d12740f6b.tar.xz | |
aio: Fix incorrect usage of eventfd_signal_allowed()
commit 4b3749865374899e115aa8c48681709b086fe6d3 upstream.
We should defer eventfd_signal() to the workqueue when
eventfd_signal_allowed() return false rather than return
true.
Fixes: b542e383d8c0 ("eventfd: Make signal recursion protection a task bit")
Signed-off-by: Xie Yongji <xieyongji@bytedance.com>
Link: https://lore.kernel.org/r/20210913111928.98-1-xieyongji@bytedance.com
Reviewed-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs/aio.c')
| -rw-r--r-- | fs/aio.c | 2 |
1 files changed, 1 insertions, 1 deletions
@@ -1761,7 +1761,7 @@ static int aio_poll_wake(struct wait_queue_entry *wait, unsigned mode, int sync, list_del_init(&req->wait.entry); list_del(&iocb->ki_list); iocb->ki_res.res = mangle_poll(mask); - if (iocb->ki_eventfd && eventfd_signal_allowed()) { + if (iocb->ki_eventfd && !eventfd_signal_allowed()) { iocb = NULL; INIT_WORK(&req->work, aio_poll_put_work); schedule_work(&req->work); |