From 393551e9898136513007b1e88a25bd4dcdb0d759 Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Fri, 1 Feb 2013 02:09:03 -0800 Subject: [PATCH] gfs2: Remove improper checks in gfs2_set_dqblk. In set_dqblk it is an error to look at fdq->d_id or fdq->d_flags. Userspace quota applications do not set these fields when calling quotactl(Q_XSETQLIM,...), and the kernel does not set those fields when quota_setquota calls set_dqblk. gfs2 never looks at fdq->d_id or fdq->d_flags after checking to see if they match the id and type supplied to set_dqblk. No other linux filesystem in set_dqblk looks at either fdq->d_id or fdq->d_flags. Therefore remove these bogus checks from gfs2 and allow normal quota setting applications to work. Cc: Steven Whitehouse Signed-off-by: "Eric W. Biederman" --- fs/gfs2/quota.c | 6 ------ 1 file changed, 6 deletions(-) diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c index ae55e248c3b7..e4f6ccf3da64 100644 --- a/fs/gfs2/quota.c +++ b/fs/gfs2/quota.c @@ -1543,13 +1543,9 @@ static int gfs2_set_dqblk(struct super_block *sb, struct kqid qid, switch(qid.type) { case USRQUOTA: type = QUOTA_USER; - if (fdq->d_flags != FS_USER_QUOTA) - return -EINVAL; break; case GRPQUOTA: type = QUOTA_GROUP; - if (fdq->d_flags != FS_GROUP_QUOTA) - return -EINVAL; break; default: return -EINVAL; @@ -1557,8 +1553,6 @@ static int gfs2_set_dqblk(struct super_block *sb, struct kqid qid, if (fdq->d_fieldmask & ~GFS2_FIELDMASK) return -EINVAL; - if (fdq->d_id != from_kqid(&init_user_ns, qid)) - return -EINVAL; error = qd_get(sdp, type, from_kqid(&init_user_ns, qid), &qd); if (error) -- 2.20.1