From 9965ed174e7d38896e5d2582159d8ef31ecd4cb5 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Mon, 5 Mar 2018 07:26:05 -0800 Subject: 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 Reviewed-by: Greg Kroah-Hartman Reviewed-by: Darrick J. Wong --- net/9p/trans_fd.c | 18 ++++-------------- 1 file changed, 4 insertions(+), 14 deletions(-) (limited to 'net/9p') diff --git a/net/9p/trans_fd.c b/net/9p/trans_fd.c index 0cfba919d167..3811775692d0 100644 --- a/net/9p/trans_fd.c +++ b/net/9p/trans_fd.c @@ -231,7 +231,7 @@ static void p9_conn_cancel(struct p9_conn *m, int err) static __poll_t p9_fd_poll(struct p9_client *client, struct poll_table_struct *pt, int *err) { - __poll_t ret, n; + __poll_t ret; struct p9_trans_fd *ts = NULL; if (client && client->status == Connected) @@ -243,19 +243,9 @@ p9_fd_poll(struct p9_client *client, struct poll_table_struct *pt, int *err) return EPOLLERR; } - if (!ts->rd->f_op->poll) - ret = DEFAULT_POLLMASK; - else - ret = ts->rd->f_op->poll(ts->rd, pt); - - if (ts->rd != ts->wr) { - if (!ts->wr->f_op->poll) - n = DEFAULT_POLLMASK; - else - n = ts->wr->f_op->poll(ts->wr, pt); - ret = (ret & ~EPOLLOUT) | (n & ~EPOLLIN); - } - + ret = vfs_poll(ts->rd, pt); + if (ts->rd != ts->wr) + ret = (ret & ~EPOLLOUT) | (vfs_poll(ts->wr, pt) & ~EPOLLIN); return ret; } -- cgit v1.2.3