From de23abd15175fb170270d485f267caebe86fb0b4 Mon Sep 17 00:00:00 2001 From: Jeff Layton Date: Wed, 6 Sep 2017 16:23:19 -0700 Subject: [PATCH] fs/sync.c: remove unnecessary NULL f_mapping check in sync_file_range fsync codepath assumes that f_mapping can never be NULL, but sync_file_range has a check for that. Remove the one from sync_file_range as I don't see how you'd ever get a NULL pointer in here. Link: http://lkml.kernel.org/r/20170525110509.9434-1-jlayton@redhat.com Signed-off-by: Jeff Layton Cc: Alexander Viro Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/sync.c | 5 ----- 1 file changed, 5 deletions(-) diff --git a/fs/sync.c b/fs/sync.c index 2a54c1f22035..cf57f33fcd16 100644 --- a/fs/sync.c +++ b/fs/sync.c @@ -335,11 +335,6 @@ SYSCALL_DEFINE4(sync_file_range, int, fd, loff_t, offset, loff_t, nbytes, goto out_put; mapping = f.file->f_mapping; - if (!mapping) { - ret = -EINVAL; - goto out_put; - } - ret = 0; if (flags & SYNC_FILE_RANGE_WAIT_BEFORE) { ret = filemap_fdatawait_range(mapping, offset, endbyte); -- 2.20.1