[PATCH 07/12] eventfd: use __anon_inode_getfd

[Christoph Hellwig]

Use __anon_inode_getfd instead of opencoding the logic using
get_unused_fd_flags + anon_inode_getfile.

Signed-off-by: Christoph Hellwig <h...@lst.de>
---
 fs/eventfd.c | 13 ++-----------
 1 file changed, 2 insertions(+), 11 deletions(-)

diff --git a/fs/eventfd.c b/fs/eventfd.c
index df466ef81dddf..9b6d5137679b2 100644
--- a/fs/eventfd.c
+++ b/fs/eventfd.c
@@ -423,20 +423,11 @@ static int do_eventfd(unsigned int count, int flags)
        ctx->count = count;
        ctx->flags = flags;
        ctx->id = ida_simple_get(&eventfd_ida, 0, 0, GFP_KERNEL);
-
-       flags &= EFD_SHARED_FCNTL_FLAGS;
-       flags |= O_RDWR;
-       fd = get_unused_fd_flags(flags);
+       fd = __anon_inode_getfd("[eventfd]", &eventfd_fops, ctx,
+               (flags & EFD_SHARED_FCNTL_FLAGS) | O_RDWR, &file);
        if (fd < 0)
                goto err;
 
-       file = anon_inode_getfile("[eventfd]", &eventfd_fops, ctx, flags);
-       if (IS_ERR(file)) {
-               put_unused_fd(fd);
-               fd = PTR_ERR(file);
-               goto err;
-       }
-
        file->f_mode |= FMODE_NOWAIT;
        fd_install(fd, file);
        return fd;
-- 
2.26.2