btrfs: rename err to ret in btrfs_cont_expand()

Unify naming of return value to the preferred way.

Signed-off-by: Anand Jain <anand.jain@oracle.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index a8964ae2d5d6225a0ee6837870ca391e9a19bb87..2d75e04a5a9b5af75cc4e7afd39d7e068b5c4897 100644 (file)
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -4933,16 +4933,16 @@ int btrfs_cont_expand(struct btrfs_inode *inode, loff_t oldsize, loff_t size)
        u64 last_byte;
        u64 cur_offset;
        u64 hole_size;
-       int err = 0;
+       int ret = 0;
 
        /*
         * If our size started in the middle of a block we need to zero out the
         * rest of the block before we expand the i_size, otherwise we could
         * expose stale data.
         */
-       err = btrfs_truncate_block(inode, oldsize, 0, 0);
-       if (err)
-               return err;
+       ret = btrfs_truncate_block(inode, oldsize, 0, 0);
+       if (ret)
+               return ret;
 
        if (size <= hole_start)
                return 0;
@@ -4953,7 +4953,7 @@ int btrfs_cont_expand(struct btrfs_inode *inode, loff_t oldsize, loff_t size)
        while (1) {
                em = btrfs_get_extent(inode, NULL, cur_offset, block_end - cur_offset);
                if (IS_ERR(em)) {
-                       err = PTR_ERR(em);
+                       ret = PTR_ERR(em);
                        em = NULL;
                        break;
                }
@@ -4964,13 +4964,13 @@ int btrfs_cont_expand(struct btrfs_inode *inode, loff_t oldsize, loff_t size)
                if (!(em->flags & EXTENT_FLAG_PREALLOC)) {
                        struct extent_map *hole_em;
 
-                       err = maybe_insert_hole(inode, cur_offset, hole_size);
-                       if (err)
+                       ret = maybe_insert_hole(inode, cur_offset, hole_size);
+                       if (ret)
                                break;
 
-                       err = btrfs_inode_set_file_extent_range(inode,
+                       ret = btrfs_inode_set_file_extent_range(inode,
                                                        cur_offset, hole_size);
-                       if (err)
+                       if (ret)
                                break;
 
                        hole_em = alloc_extent_map();
@@ -4991,12 +4991,12 @@ int btrfs_cont_expand(struct btrfs_inode *inode, loff_t oldsize, loff_t size)
                        hole_em->ram_bytes = hole_size;
                        hole_em->generation = btrfs_get_fs_generation(fs_info);
 
-                       err = btrfs_replace_extent_map_range(inode, hole_em, true);
+                       ret = btrfs_replace_extent_map_range(inode, hole_em, true);
                        free_extent_map(hole_em);
                } else {
-                       err = btrfs_inode_set_file_extent_range(inode,
+                       ret = btrfs_inode_set_file_extent_range(inode,
                                                        cur_offset, hole_size);
-                       if (err)
+                       if (ret)
                                break;
                }
 next:
@@ -5008,7 +5008,7 @@ next:
        }
        free_extent_map(em);
        unlock_extent(io_tree, hole_start, block_end - 1, &cached_state);
-       return err;
+       return ret;
 }
 
 static int btrfs_setsize(struct inode *inode, struct iattr *attr)