btrfs: remove unused parameters from btrfs_cmp_data

After the page locking has been reworked, we get all pages prepared via
cmp_pages.

Reviewed-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>

diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 4f360b1..9b47ecc 100644 (file)
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -3053,8 +3053,7 @@ out:
        return 0;
 }
 
-static int btrfs_cmp_data(struct inode *src, u64 loff, struct inode *dst,
-                         u64 dst_loff, u64 len, struct cmp_pages *cmp)
+static int btrfs_cmp_data(u64 len, struct cmp_pages *cmp)
 {
        int ret = 0;
        int i;
@@ -3221,7 +3220,7 @@ again:
        }
 
        /* pass original length for comparison so we stay within i_size */
-       ret = btrfs_cmp_data(src, loff, dst, dst_loff, olen, &cmp);
+       ret = btrfs_cmp_data(olen, &cmp);
        if (ret == 0)
                ret = btrfs_clone(src, dst, loff, olen, len, dst_loff, 1);