linux-ext4 - [PATCH 4/4] ext4: fix incorrect block reservation on quota transfer.

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Message-id: <1259132261-16785-4-git-send-email-dmonakhov@openvz.org>
Date:	Wed, 25 Nov 2009 09:57:41 +0300
From:	Dmitry Monakhov <dmonakhov@...nvz.org>
To:	linux-ext4@...r.kernel.org
Cc:	Dmitry Monakhov <dmonakhov@...nvz.org>, Jan Kara <jack@...e.cz>
Subject: [PATCH 4/4] ext4: fix incorrect block reservation on quota transfer.

Inside ->setattr() call both ATTR_UID and ATTR_GID may be valid
This means that we may end-up with transferring all quotas. Add
we have to reserve QUOTA_DEL_BLOCKS for all quotas, as we do in
case of QUOTA_INIT_BLOCKS.

Signed-off-by: Dmitry Monakhov <dmonakhov@...nvz.org>
---
 fs/ext4/inode.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 211722b..d42e954 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -5439,7 +5439,7 @@ int ext4_setattr(struct dentry *dentry, struct iattr *attr)
 		/* (user+group)*(old+new) structure, inode write (sb,
 		 * inode block, ? - but truncate inode update has it) */
 		handle = ext4_journal_start(inode, (EXT4_MAXQUOTAS_INIT_BLOCKS(inode->i_sb)+
-					EXT4_QUOTA_DEL_BLOCKS(inode->i_sb))+3);
+					EXT4_MAXQUOTAS_DEL_BLOCKS(inode->i_sb))+3);
 		if (IS_ERR(handle)) {
 			error = PTR_ERR(handle);
 			goto err_out;
-- 
1.6.0.4

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