diff options
| author | Christoph Hellwig <hch@lst.de> | 2018-03-05 07:26:05 -0800 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2018-05-26 09:16:44 +0200 |
| commit | 9965ed174e7d38896e5d2582159d8ef31ecd4cb5 (patch) | |
| tree | 955bfa805fff87c169a4814deaf311b90cca84b2 /fs/eventpoll.c | |
| parent | 6e8b704df58407aad7607053cb1b5ead4ac4a0bc (diff) | |
| download | lwn-9965ed174e7d38896e5d2582159d8ef31ecd4cb5.tar.gz lwn-9965ed174e7d38896e5d2582159d8ef31ecd4cb5.zip | |
fs: add new vfs_poll and file_can_poll helpers
These abstract out calls to the poll method in preparation for changes
in how we poll.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Diffstat (limited to 'fs/eventpoll.c')
| -rw-r--r-- | fs/eventpoll.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/fs/eventpoll.c b/fs/eventpoll.c index 602ca4285b2e..67db22fe99c5 100644 --- a/fs/eventpoll.c +++ b/fs/eventpoll.c @@ -884,8 +884,7 @@ static __poll_t ep_item_poll(const struct epitem *epi, poll_table *pt, pt->_key = epi->event.events; if (!is_file_epoll(epi->ffd.file)) - return epi->ffd.file->f_op->poll(epi->ffd.file, pt) & - epi->event.events; + return vfs_poll(epi->ffd.file, pt) & epi->event.events; ep = epi->ffd.file->private_data; poll_wait(epi->ffd.file, &ep->poll_wait, pt); @@ -2025,7 +2024,7 @@ SYSCALL_DEFINE4(epoll_ctl, int, epfd, int, op, int, fd, /* The target file descriptor must support poll */ error = -EPERM; - if (!tf.file->f_op->poll) + if (!file_can_poll(tf.file)) goto error_tgt_fput; /* Check if EPOLLWAKEUP is allowed */ |