[PATCH] btrfs: defrag: use btrfs_mod_outstanding_extents in cluster_pages_for_defrag

[Su Yue]

Since commit 8b62f87bad9c ("Btrfs: rework outstanding_extents"),
manual operations of outstanding_extent in btrfs_inode are replaced by
btrfs_mod_outstanding_extents().
The one in cluster_pages_for_defrag seems to be lost, so replace it
of btrfs_mod_outstanding_extents().

Fixes: 8b62f87bad9c ("Btrfs: rework outstanding_extents")
Signed-off-by: Su Yue <suy.f...@cn.fujitsu.com>
---
 fs/btrfs/ioctl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 63600dc2ac4c..c180ded27092 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -1308,7 +1308,7 @@ static int cluster_pages_for_defrag(struct inode *inode,
 
        if (i_done != page_cnt) {
                spin_lock(&BTRFS_I(inode)->lock);
-               BTRFS_I(inode)->outstanding_extents++;
+               btrfs_mod_outstanding_extents(BTRFS_I(inode), 1);
                spin_unlock(&BTRFS_I(inode)->lock);
                btrfs_delalloc_release_space(inode, data_reserved,
                                start_index << PAGE_SHIFT,
-- 
2.18.0