From 9da93f9b7cdf8ab28da6b364cdc1fafc8670b4dc Mon Sep 17 00:00:00 2001 From: Eric Sandeen Date: Mon, 5 May 2014 17:25:50 +1000 Subject: xfs: fix Q_XQUOTARM ioctl The Q_XQUOTARM quotactl was not working properly, because we weren't passing around proper flags. The xfs_fs_set_xstate() ioctl handler used the same flags for Q_XQUOTAON/OFF as well as for Q_XQUOTARM, but Q_XQUOTAON/OFF look for XFS_UQUOTA_ACCT, XFS_UQUOTA_ENFD, XFS_GQUOTA_ACCT etc, i.e. quota type + state, while Q_XQUOTARM looks only for the type of quota, i.e. XFS_DQ_USER, XFS_DQ_GROUP etc. Unfortunately these flag spaces overlap a bit, so we got semi-random results for Q_XQUOTARM; i.e. the value for XFS_DQ_USER == XFS_UQUOTA_ACCT, etc. yeargh. Add a new quotactl op vector specifically for the QUOTARM operation, since it operates with a different flag space. This has been broken more or less forever, AFAICT. Signed-off-by: Eric Sandeen Acked-by: Jan Kara Reviewed-by: Christoph Hellwig Signed-off-by: Dave Chinner --- include/linux/quota.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux/quota.h') diff --git a/include/linux/quota.h b/include/linux/quota.h index cc7494a35429..0f3c5d38da1f 100644 --- a/include/linux/quota.h +++ b/include/linux/quota.h @@ -329,6 +329,7 @@ struct quotactl_ops { int (*get_xstate)(struct super_block *, struct fs_quota_stat *); int (*set_xstate)(struct super_block *, unsigned int, int); int (*get_xstatev)(struct super_block *, struct fs_quota_statv *); + int (*rm_xquota)(struct super_block *, unsigned int); }; struct quota_format_type { -- cgit v1.2.3-59-g8ed1b