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quota: Handle quota data stored in s_user_ns in quota_setxquota 

In Q_XSETQLIMIT use sb->s_user_ns to detect when we are dealing with
the filesystems notion of id 0.

Cc: Jan Kara <jack@suse.cz>
Acked-by: Seth Forshee <seth.forshee@canonical.com>
Inspired-by: Seth Forshee <seth.forshee@canonical.com>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
This commit is contained in:
Eric W. Biederman 2016-07-05 11:10:57 -05:00
parent d49d37624a
commit cfd4c70a18
1 changed files with 1 additions and 1 deletions
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2
fs/quota/quota.c
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@ -584,7 +584,7 @@ static int quota_setxquota(struct super_block *sb, int type, qid_t id,
if (!qid_has_mapping(sb->s_user_ns, qid))
return -EINVAL;
/* Are we actually setting timer / warning limits for all users? */
if (from_kqid(&init_user_ns, qid) == 0 &&
if (from_kqid(sb->s_user_ns, qid) == 0 &&
fdq.d_fieldmask & (FS_DQ_WARNS_MASK | FS_DQ_TIMER_MASK)) {
struct qc_info qinfo;
int ret;