Commit 4ed0c308 authored by Bob Peterson's avatar Bob Peterson Committed by Andreas Gruenbacher

gfs2: move privileged user check to gfs2_quota_lock_check

Before this patch, function gfs2_quota_lock checked if it was called
from a privileged user, and if so, it bypassed the quota check:
superuser can operate outside the quotas.
That's the wrong place for the check because the lock/unlock functions
are separate from the lock_check function, and you can do lock and
unlock without actually checking the quotas.

This patch moves the check to gfs2_quota_lock_check.
Signed-off-by: default avatarBob Peterson <rpeterso@redhat.com>
Signed-off-by: default avatarAndreas Gruenbacher <agruenba@redhat.com>
parent e6ce26e5
......@@ -1051,8 +1051,7 @@ int gfs2_quota_lock(struct gfs2_inode *ip, kuid_t uid, kgid_t gid)
u32 x;
int error = 0;
if (capable(CAP_SYS_RESOURCE) ||
sdp->sd_args.ar_quota != GFS2_QUOTA_ON)
if (sdp->sd_args.ar_quota != GFS2_QUOTA_ON)
return 0;
error = gfs2_quota_hold(ip, uid, gid);
......
......@@ -44,7 +44,8 @@ static inline int gfs2_quota_lock_check(struct gfs2_inode *ip,
int ret;
ap->allowed = UINT_MAX; /* Assume we are permitted a whole lot */
if (sdp->sd_args.ar_quota == GFS2_QUOTA_OFF)
if (capable(CAP_SYS_RESOURCE) ||
sdp->sd_args.ar_quota == GFS2_QUOTA_OFF)
return 0;
ret = gfs2_quota_lock(ip, NO_UID_QUOTA_CHANGE, NO_GID_QUOTA_CHANGE);
if (ret)
......
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