CAP_SYS_RESOURCE allows users to "override disk quota limits". Most filesystems have a CAP_SYS_RESOURCE check in all quota check code paths, but Ceph currently does not. This patch implements the feature. Signed-off-by: Max Kellermann <max.kellermann@xxxxxxxxx> --- v1 -> v2: moved capable check to check_quota_exceeded() --- fs/ceph/quota.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/fs/ceph/quota.c b/fs/ceph/quota.c index 06ee397e0c3a..c428dc8e8f23 100644 --- a/fs/ceph/quota.c +++ b/fs/ceph/quota.c @@ -334,6 +334,9 @@ static bool check_quota_exceeded(struct inode *inode, enum quota_check_op op, u64 max, rvalue; bool exceeded = false; + if (capable(CAP_SYS_RESOURCE)) + return false; + if (ceph_snap(inode) != CEPH_NOSNAP) return false; -- 2.45.2
