btrfs: qgroup: Cleanup old inaccurate facilities

Cleanup the old facilities which use old btrfs_qgroup_reserve() function
call, replace them with the newer version, and remove the "__" prefix in
them.

Also, make btrfs_qgroup_reserve/free() functions private, as they are
now only used inside qgroup codes.

Now, the whole btrfs qgroup is swithed to use the new reserve facilities.

Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: Chris Mason <clm@fb.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 70732e629b0f..7ed033a84212 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -1119,7 +1119,7 @@ static int cluster_pages_for_defrag(struct inode *inode,
 
         page_cnt = min_t(u64, (u64)num_pages, (u64)file_end - start_index + 1);
 
-        ret = __btrfs_delalloc_reserve_space(inode,
+        ret = btrfs_delalloc_reserve_space(inode,
                         start_index << PAGE_CACHE_SHIFT,
                         page_cnt << PAGE_CACHE_SHIFT);
         if (ret)
@@ -1210,7 +1210,7 @@ again:
                 spin_lock(&BTRFS_I(inode)->lock);
                 BTRFS_I(inode)->outstanding_extents++;
                 spin_unlock(&BTRFS_I(inode)->lock);
-                __btrfs_delalloc_release_space(inode,
+                btrfs_delalloc_release_space(inode,
                                 start_index << PAGE_CACHE_SHIFT,
                                 (page_cnt - i_done) << PAGE_CACHE_SHIFT);
         }
@@ -1237,7 +1237,7 @@ out:
                 unlock_page(pages[i]);
                 page_cache_release(pages[i]);
         }
-        __btrfs_delalloc_release_space(inode,
+        btrfs_delalloc_release_space(inode,
                         start_index << PAGE_CACHE_SHIFT,
                         page_cnt << PAGE_CACHE_SHIFT);
         return ret;