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 <jlayton@redhat.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/fs/sync.c b/fs/sync.c
index 2a54c1f..cf57f33 100644
--- a/fs/sync.c
+++ b/fs/sync.c
@@ -335,11 +335,6 @@
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);