From 1231b3a1eb5740192aeebf5344dd6d6da000febf Mon Sep 17 00:00:00 2001 From: Lukas Czerner Date: Mon, 18 Feb 2013 12:12:07 -0500 Subject: [PATCH] ext4: fix xattr block allocation/release with bigalloc Currently when new xattr block is created or released we we would call dquot_free_block() or dquot_alloc_block() respectively, among the else decrementing or incrementing the number of blocks assigned to the inode by one block. This however does not work for bigalloc file system because we always allocate/free the whole cluster so we have to count with that in dquot_free_block() and dquot_alloc_block() as well. Use the clusters-to-blocks conversion EXT4_C2B() when passing number of blocks to the dquot_alloc/free functions to fix the problem. The problem has been revealed by xfstests #117 (and possibly others). Signed-off-by: Lukas Czerner Signed-off-by: "Theodore Ts'o" Reviewed-by: Eric Sandeen Cc: stable@vger.kernel.org --- fs/ext4/xattr.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c index cc31da027596..3a120b277240 100644 --- a/fs/ext4/xattr.c +++ b/fs/ext4/xattr.c @@ -549,7 +549,7 @@ ext4_xattr_release_block(handle_t *handle, struct inode *inode, error = ext4_handle_dirty_xattr_block(handle, inode, bh); if (IS_SYNC(inode)) ext4_handle_sync(handle); - dquot_free_block(inode, 1); + dquot_free_block(inode, EXT4_C2B(EXT4_SB(inode->i_sb), 1)); ea_bdebug(bh, "refcount now=%d; releasing", le32_to_cpu(BHDR(bh)->h_refcount)); } @@ -832,7 +832,8 @@ inserted: else { /* The old block is released after updating the inode. */ - error = dquot_alloc_block(inode, 1); + error = dquot_alloc_block(inode, + EXT4_C2B(EXT4_SB(sb), 1)); if (error) goto cleanup; error = ext4_journal_get_write_access(handle, @@ -929,7 +930,7 @@ cleanup: return error; cleanup_dquot: - dquot_free_block(inode, 1); + dquot_free_block(inode, EXT4_C2B(EXT4_SB(sb), 1)); goto cleanup; bad_block: