ext4: Fix bigalloc quota accounting and i_blocks value

With bigalloc changes, the i_blocks value was not correctly set (it was still
set to number of blocks being used, but in case of bigalloc, we want i_blocks
to represent the number of clusters being used). Since the quota subsystem sets
the i_blocks value, this patch fixes the quota accounting and makes sure that
the i_blocks value is set correctly.

Signed-off-by: Aditya Kali <adityakali@google.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

1 files changed, 3 insertions, 2 deletions

diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c
index 9080a857cda9..bf42b3219e3c 100644
--- a/fs/ext4/balloc.c
+++ b/fs/ext4/balloc.c
@@ -485,7 +485,7 @@ int ext4_should_retry_alloc(struct super_block *sb, int *retries)
  * @handle:             handle to this transaction
  * @inode:              file inode
  * @goal:               given target block(filesystem wide)
- * @count:              pointer to total number of blocks needed
+ * @count:              pointer to total number of clusters needed
  * @errp:               error code
  *
  * Return 1st allocated block number on success, *count stores total account
@@ -517,7 +517,8 @@ ext4_fsblk_t ext4_new_meta_blocks(handle_t *handle, struct inode *inode,
                 spin_lock(&EXT4_I(inode)->i_block_reservation_lock);
                 EXT4_I(inode)->i_allocated_meta_blocks += ar.len;
                 spin_unlock(&EXT4_I(inode)->i_block_reservation_lock);
-                dquot_alloc_block_nofail(inode, ar.len);
+                dquot_alloc_block_nofail(inode,
+                                EXT4_C2B(EXT4_SB(inode->i_sb), ar.len));
         }
         return ret;
 }