From: "Eric W. Biederman" <[email protected]> - In quota_refresh_user_store convert the user supplied uid into a kqid and pass it to gfs2_quota_refresh.
- In quota_refresh_group_store convert the user supplied gid into a kqid and pass it to gfs2_quota_refresh. Cc: Steven Whitehouse <[email protected]> Signed-off-by: "Eric W. Biederman" <[email protected]> --- fs/gfs2/quota.c | 5 +++-- fs/gfs2/quota.h | 2 +- fs/gfs2/sys.c | 14 ++++++++++++-- 3 files changed, 16 insertions(+), 5 deletions(-) diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c index 20762ae..47315c0 100644 --- a/fs/gfs2/quota.c +++ b/fs/gfs2/quota.c @@ -1177,13 +1177,14 @@ static int gfs2_quota_sync_timeo(struct super_block *sb, int type) return gfs2_quota_sync(sb, type); } -int gfs2_quota_refresh(struct gfs2_sbd *sdp, int user, u32 id) +int gfs2_quota_refresh(struct gfs2_sbd *sdp, struct kqid qid) { struct gfs2_quota_data *qd; struct gfs2_holder q_gh; int error; - error = qd_get(sdp, user, id, &qd); + error = qd_get(sdp, qid.type == USRQUOTA ? QUOTA_USER : QUOTA_GROUP, + from_kqid(&init_user_ns, qid), &qd); if (error) return error; diff --git a/fs/gfs2/quota.h b/fs/gfs2/quota.h index 7f67323..bef805d 100644 --- a/fs/gfs2/quota.h +++ b/fs/gfs2/quota.h @@ -28,7 +28,7 @@ extern void gfs2_quota_change(struct gfs2_inode *ip, s64 change, u32 uid, u32 gid); extern int gfs2_quota_sync(struct super_block *sb, int type); -extern int gfs2_quota_refresh(struct gfs2_sbd *sdp, int user, u32 id); +extern int gfs2_quota_refresh(struct gfs2_sbd *sdp, struct kqid qid); extern int gfs2_quota_init(struct gfs2_sbd *sdp); extern void gfs2_quota_cleanup(struct gfs2_sbd *sdp); diff --git a/fs/gfs2/sys.c b/fs/gfs2/sys.c index 8056b7b..e6d8d48 100644 --- a/fs/gfs2/sys.c +++ b/fs/gfs2/sys.c @@ -175,6 +175,7 @@ static ssize_t quota_sync_store(struct gfs2_sbd *sdp, const char *buf, static ssize_t quota_refresh_user_store(struct gfs2_sbd *sdp, const char *buf, size_t len) { + struct kqid qid; int error; u32 id; @@ -183,13 +184,18 @@ static ssize_t quota_refresh_user_store(struct gfs2_sbd *sdp, const char *buf, id = simple_strtoul(buf, NULL, 0); - error = gfs2_quota_refresh(sdp, 1, id); + qid = make_kqid(current_user_ns(), USRQUOTA, id); + if (!qid_valid(qid)) + return -EINVAL; + + error = gfs2_quota_refresh(sdp, qid); return error ? error : len; } static ssize_t quota_refresh_group_store(struct gfs2_sbd *sdp, const char *buf, size_t len) { + struct kqid qid; int error; u32 id; @@ -198,7 +204,11 @@ static ssize_t quota_refresh_group_store(struct gfs2_sbd *sdp, const char *buf, id = simple_strtoul(buf, NULL, 0); - error = gfs2_quota_refresh(sdp, 0, id); + qid = make_kqid(current_user_ns(), GRPQUOTA, id); + if (!qid_valid(qid)) + return -EINVAL; + + error = gfs2_quota_refresh(sdp, qid); return error ? error : len; } -- 1.7.5.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
