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authorDavid Sterba <dsterba@suse.com>2016-11-08 17:56:24 +0100
committerDavid Sterba <dsterba@suse.com>2016-11-30 13:45:17 +0100
commitfba1acf9ff77656e3b9f5c0f7b6a52c93e4932ec (patch)
tree077fa0c8f34cee3033a65885d3426d63e6ecbc4d /fs/btrfs/extent_io.c
parentbtrfs: use new helpers to set uuids in eb (diff)
downloadlinux-fba1acf9ff77656e3b9f5c0f7b6a52c93e4932ec.tar.xz
linux-fba1acf9ff77656e3b9f5c0f7b6a52c93e4932ec.zip
btrfs: use specialized page copying helpers in btrfs_clone_extent_buffer
The copy_page is usually optimized and can be faster than memcpy. Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to '')
-rw-r--r--fs/btrfs/extent_io.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 2ae731a0058a..bf719e3bcaf2 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -4720,9 +4720,9 @@ struct extent_buffer *btrfs_clone_extent_buffer(struct extent_buffer *src)
WARN_ON(PageDirty(p));
SetPageUptodate(p);
new->pages[i] = p;
+ copy_page(page_address(p), page_address(src->pages[i]));
}
- copy_extent_buffer(new, src, 0, 0, src->len);
set_bit(EXTENT_BUFFER_UPTODATE, &new->bflags);
set_bit(EXTENT_BUFFER_DUMMY, &new->bflags);