From: Damien Le Moal <dlemoal@kernel.org>
Date: Mon, 16 Mar 2026 11:40:19 +0000 (+0900)
Subject: xfs: display more zone related information in mountstats
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=68aa101bf2046aa8365333a3768cece07975ca5f;p=thirdparty%2Fkernel%2Flinux.git

xfs: display more zone related information in mountstats

Modify xfs_zoned_show_stats() to add to the information displayed with
/proc/self/mountstats the total number of zones (RT groups) and the
number of open zones together with the maximum number of open zones.

Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Hans Holmberg <hans.holmberg@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Carlos Maiolino <cem@kernel.org>
---

diff --git a/fs/xfs/xfs_zone_info.c b/fs/xfs/xfs_zone_info.c
index 53eabbc3334c0..a2af440116544 100644
--- a/fs/xfs/xfs_zone_info.c
+++ b/fs/xfs/xfs_zone_info.c
@@ -90,9 +90,14 @@ xfs_zoned_show_stats(
 	seq_printf(m, "\tRT GC required: %d\n",
 		xfs_zoned_need_gc(mp));
 
+	seq_printf(m, "\ttotal number of zones: %u\n",
+		mp->m_sb.sb_rgcount);
 	seq_printf(m, "\tfree zones: %d\n", atomic_read(&zi->zi_nr_free_zones));
-	seq_puts(m, "\topen zones:\n");
+
 	spin_lock(&zi->zi_open_zones_lock);
+	seq_printf(m, "\tnumber of open zones: %u / %u\n",
+		zi->zi_nr_open_zones, mp->m_max_open_zones);
+	seq_puts(m, "\topen zones:\n");
 	list_for_each_entry(oz, &zi->zi_open_zones, oz_entry)
 		xfs_show_open_zone(m, oz);
 	if (zi->zi_open_gc_zone) {