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authorJohannes Thumshirn <jthumshirn@suse.de>2018-12-05 15:23:03 +0100
committerDavid Sterba <dsterba@suse.com>2018-12-17 14:51:45 +0100
commit7073017aeb98db311ca407f0f552f2bfc1af3015 (patch)
tree55437b78aa398fc0b50224e6cd5af3e35dce0e5d /fs/btrfs/send.c
parentcb5583dd52fab469a001a007385066fcd60629c5 (diff)
btrfs: use offset_in_page instead of open-coding it
Constructs like 'var & (PAGE_SIZE - 1)' or 'var & ~PAGE_MASK' can denote an offset into a page. So replace them by the offset_in_page() macro instead of open-coding it if they're not used as an alignment check. Reviewed-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/send.c')
-rw-r--r--fs/btrfs/send.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c
index 5be83b5a1b43..9df4c0b0e789 100644
--- a/fs/btrfs/send.c
+++ b/fs/btrfs/send.c
@@ -4775,7 +4775,7 @@ static ssize_t fill_read_buf(struct send_ctx *sctx, u64 offset, u32 len)
struct btrfs_key key;
pgoff_t index = offset >> PAGE_SHIFT;
pgoff_t last_index;
- unsigned pg_offset = offset & ~PAGE_MASK;
+ unsigned pg_offset = offset_in_page(offset);
ssize_t ret = 0;
key.objectid = sctx->cur_ino;