ext4: Use clean_bdev_aliases() instead of iteration

Use clean_bdev_aliases() instead of iterating through blocks one by one.

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Jens Axboe <axboe@fb.com>

2 files changed, 6 insertions, 22 deletions

diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index c930a0110fb4..dd5b74dfa018 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -3777,14 +3777,6 @@ out:
         return err;
 }
 
-static void unmap_underlying_metadata_blocks(struct block_device *bdev,
-                        sector_t block, int count)
-{
-        int i;
-        for (i = 0; i < count; i++)
-                unmap_underlying_metadata(bdev, block + i);
-}
-
 /*
  * Handle EOFBLOCKS_FL flag, clearing it if necessary
  */
@@ -4121,9 +4113,8 @@ out:
          * new.
          */
         if (allocated > map->m_len) {
-                unmap_underlying_metadata_blocks(inode->i_sb->s_bdev,
-                                        newblock + map->m_len,
-                                        allocated - map->m_len);
+                clean_bdev_aliases(inode->i_sb->s_bdev, newblock + map->m_len,
+                                   allocated - map->m_len);
                 allocated = map->m_len;
         }
         map->m_len = allocated;
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 9c064727ed62..7c7cc4ae4b8e 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -654,12 +654,8 @@ found:
                 if (flags & EXT4_GET_BLOCKS_ZERO &&
                     map->m_flags & EXT4_MAP_MAPPED &&
                     map->m_flags & EXT4_MAP_NEW) {
-                        ext4_lblk_t i;
-
-                        for (i = 0; i < map->m_len; i++) {
-                                unmap_underlying_metadata(inode->i_sb->s_bdev,
-                                                          map->m_pblk + i);
-                        }
+                        clean_bdev_aliases(inode->i_sb->s_bdev, map->m_pblk,
+                                           map->m_len);
                         ret = ext4_issue_zeroout(inode, map->m_lblk,
                                                  map->m_pblk, map->m_len);
                         if (ret) {
@@ -2360,11 +2356,8 @@ static int mpage_map_one_extent(handle_t *handle, struct mpage_da_data *mpd)
 
         BUG_ON(map->m_len == 0);
         if (map->m_flags & EXT4_MAP_NEW) {
-                struct block_device *bdev = inode->i_sb->s_bdev;
-                int i;
-
-                for (i = 0; i < map->m_len; i++)
-                        unmap_underlying_metadata(bdev, map->m_pblk + i);
+                clean_bdev_aliases(inode->i_sb->s_bdev, map->m_pblk,
+                                   map->m_len);
         }
         return 0;
 }