diff mbox series

[v2,1/3] btrfs: don't initialize 'offset' in map_private_extent_buffer()

Message ID 20181128085456.5702-2-jthumshirn@suse.de (mailing list archive)
State New, archived
Headers show
Series Misc cosmetic changes for map_private_extent_buffer | expand

Commit Message

Johannes Thumshirn Nov. 28, 2018, 8:54 a.m. UTC 
In map_private_extent_buffer() the 'offset' variable is initialized to a
page aligned version of the 'start' parameter.

But later on it is overwritten with either the offset from the extent
buffer's start or 0.

So get rid of the initial initialization.

Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
---
 fs/btrfs/extent_io.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 582b4b1c41e0..7aafdec49dc3 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -5380,7 +5380,7 @@  int map_private_extent_buffer(const struct extent_buffer *eb,
 			      char **map, unsigned long *map_start,
 			      unsigned long *map_len)
 {
-	size_t offset = start & (PAGE_SIZE - 1);
+	size_t offset;
 	char *kaddr;
 	struct page *p;
 	size_t start_offset = eb->start & ((u64)PAGE_SIZE - 1);