From eef46ab713f78591fe2cb20f5e90d9a8fdbddd59 Mon Sep 17 00:00:00 2001
From: Bob Peterson <rpeterso@redhat.com>
Date: Wed, 28 Jun 2023 13:52:42 -0500
Subject: [PATCH] gfs2: Introduce new quota=quiet mount option

This patch adds a new mount option quota=quiet which is the same as
quota=on but it suppresses gfs2 quota error messages.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
---
 fs/gfs2/incore.h     |  1 +
 fs/gfs2/ops_fstype.c |  1 +
 fs/gfs2/quota.c      | 17 +++++++++++------
 fs/gfs2/super.c      |  3 +++
 4 files changed, 16 insertions(+), 6 deletions(-)

diff --git a/fs/gfs2/incore.h b/fs/gfs2/incore.h
index ab85743..7e94cf3 100644
--- a/fs/gfs2/incore.h
+++ b/fs/gfs2/incore.h
@@ -537,6 +537,7 @@ struct gfs2_statfs_change_host {
 #define GFS2_QUOTA_OFF		0
 #define GFS2_QUOTA_ACCOUNT	1
 #define GFS2_QUOTA_ON		2
+#define GFS2_QUOTA_QUIET	3 /* on but not complaining */
 
 #define GFS2_DATA_DEFAULT	GFS2_DATA_ORDERED
 #define GFS2_DATA_WRITEBACK	1
diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c
index bcbe952..33ca0473 100644
--- a/fs/gfs2/ops_fstype.c
+++ b/fs/gfs2/ops_fstype.c
@@ -1396,6 +1396,7 @@ static const struct constant_table gfs2_param_quota[] = {
 	{"off",        GFS2_QUOTA_OFF},
 	{"account",    GFS2_QUOTA_ACCOUNT},
 	{"on",         GFS2_QUOTA_ON},
+	{"quiet",      GFS2_QUOTA_QUIET},
 	{}
 };
 
diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c
index 3a3189f..0cc5850 100644
--- a/fs/gfs2/quota.c
+++ b/fs/gfs2/quota.c
@@ -1083,7 +1083,8 @@ int gfs2_quota_lock(struct gfs2_inode *ip, kuid_t uid, kgid_t gid)
 	u32 x;
 	int error = 0;
 
-	if (sdp->sd_args.ar_quota != GFS2_QUOTA_ON)
+	if (sdp->sd_args.ar_quota != GFS2_QUOTA_ON &&
+	    sdp->sd_args.ar_quota != GFS2_QUOTA_QUIET)
 		return 0;
 
 	error = gfs2_quota_hold(ip, uid, gid);
@@ -1202,10 +1203,11 @@ static int print_message(struct gfs2_quota_data *qd, char *type)
 {
 	struct gfs2_sbd *sdp = qd->qd_sbd;
 
-	fs_info(sdp, "quota %s for %s %u\n",
-		type,
-		(qd->qd_id.type == USRQUOTA) ? "user" : "group",
-		from_kqid(&init_user_ns, qd->qd_id));
+	if (sdp->sd_args.ar_quota != GFS2_QUOTA_QUIET)
+		fs_info(sdp, "quota %s for %s %u\n",
+			type,
+			(qd->qd_id.type == USRQUOTA) ? "user" : "group",
+			from_kqid(&init_user_ns, qd->qd_id));
 
 	return 0;
 }
@@ -1291,7 +1293,8 @@ void gfs2_quota_change(struct gfs2_inode *ip, s64 change,
 	u32 x;
 	struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
 
-	if (sdp->sd_args.ar_quota != GFS2_QUOTA_ON ||
+	if ((sdp->sd_args.ar_quota != GFS2_QUOTA_ON &&
+	    sdp->sd_args.ar_quota != GFS2_QUOTA_QUIET) ||
 	    gfs2_assert_warn(sdp, change))
 		return;
 	if (ip->i_diskflags & GFS2_DIF_SYSTEM)
@@ -1601,6 +1604,8 @@ static int gfs2_quota_get_state(struct super_block *sb, struct qc_state *state)
 	memset(state, 0, sizeof(*state));
 
 	switch (sdp->sd_args.ar_quota) {
+	case GFS2_QUOTA_QUIET:
+		fallthrough;
 	case GFS2_QUOTA_ON:
 		state->s_state[USRQUOTA].flags |= QCI_LIMITS_ENFORCED;
 		state->s_state[GRPQUOTA].flags |= QCI_LIMITS_ENFORCED;
diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c
index be3f69c..18993ec 100644
--- a/fs/gfs2/super.c
+++ b/fs/gfs2/super.c
@@ -1119,6 +1119,9 @@ static int gfs2_show_options(struct seq_file *s, struct dentry *root)
 		case GFS2_QUOTA_ON:
 			state = "on";
 			break;
+		case GFS2_QUOTA_QUIET:
+			state = "quiet";
+			break;
 		default:
 			state = "unknown";
 			break;
-- 
2.7.4