[06/12] eventpoll: use __anon_inode_getfd

Message ID 20200508153634.249933-7-hch@lst.de
State New
Headers show
Series
  • [01/12] fd: add a new __anon_inode_getfd helper
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Commit Message

Christoph Hellwig May 8, 2020, 3:36 p.m.
Use __anon_inode_getfd instead of opencoding the logic using
get_unused_fd_flags + anon_inode_getfile.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 fs/eventpoll.c | 15 +++------------
 1 file changed, 3 insertions(+), 12 deletions(-)

Patch

diff --git a/fs/eventpoll.c b/fs/eventpoll.c
index 8c596641a72b0..8abdb9fff611a 100644
--- a/fs/eventpoll.c
+++ b/fs/eventpoll.c
@@ -2055,23 +2055,14 @@  static int do_epoll_create(int flags)
 	 * Creates all the items needed to setup an eventpoll file. That is,
 	 * a file structure and a free file descriptor.
 	 */
-	fd = get_unused_fd_flags(O_RDWR | (flags & O_CLOEXEC));
-	if (fd < 0) {
-		error = fd;
+	fd = __anon_inode_getfd("[eventpoll]", &eventpoll_fops, ep,
+				 O_RDWR | (flags & O_CLOEXEC), &file);
+	if (fd < 0)
 		goto out_free_ep;
-	}
-	file = anon_inode_getfile("[eventpoll]", &eventpoll_fops, ep,
-				 O_RDWR | (flags & O_CLOEXEC));
-	if (IS_ERR(file)) {
-		error = PTR_ERR(file);
-		goto out_free_fd;
-	}
 	ep->file = file;
 	fd_install(fd, file);
 	return fd;
 
-out_free_fd:
-	put_unused_fd(fd);
 out_free_ep:
 	ep_free(ep);
 	return error;