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ext4: fix quota accounting during migration

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The tmp_inode should have same uid/gid as the original inode.
Otherwise new metadata blocks will be accounted to wrong quota-id,
which will result in a quota leak after the inode migration is
completed.

Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
This commit is contained in:
Dmitry Monakhov
2011-10-29 09:05:00 -04:00
committed by Theodore Ts'o
parent fba90ffee8
commit 5cb81dabcc
4 changed files with 17 additions and 10 deletions
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9
fs/ext4/ialloc.c
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@@ -691,7 +691,7 @@ err_ret:
* group to find a free inode.
*/
struct inode *ext4_new_inode(handle_t *handle, struct inode *dir, int mode,
const struct qstr *qstr, __u32 goal)
const struct qstr *qstr, __u32 goal, uid_t *owner)
{
struct super_block *sb;
struct buffer_head *inode_bitmap_bh = NULL;
@@ -852,8 +852,11 @@ got:
flex_group = ext4_flex_group(sbi, group);
atomic_dec(&sbi->s_flex_groups[flex_group].free_inodes);
}
if (test_opt(sb, GRPID)) {
if (owner) {
inode->i_mode = mode;
inode->i_uid = owner[0];
inode->i_gid = owner[1];
} else if (test_opt(sb, GRPID)) {
inode->i_mode = mode;
inode->i_uid = current_fsuid();
inode->i_gid = dir->i_gid;