From: Tim Chase <tim@chase2k.com>
Date: Fri, 25 Jan 2019 17:50:06 +0000 (-0600)
Subject: Use proper tag for spa config refcounts in mmp_write_uberblock()
X-Git-Tag: zfs-0.8.0-rc4~150
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=107dd2b1748bc4c15e5e5fa7342cfc4e61bce4ee;p=zfs

Use proper tag for spa config refcounts in mmp_write_uberblock()

This allows the spa config refcounts to use tracking in debug builds
without triggering the "No such hold %p on refcount" panic.

Reviewed-by: Olaf Faaland <faaland1@llnl.gov>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Tim Chase <tim@chase2k.com>
Closes #8326
---

diff --git a/module/zfs/mmp.c b/module/zfs/mmp.c
index 6fd5d3e9a..746ee0f77 100644
--- a/module/zfs/mmp.c
+++ b/module/zfs/mmp.c
@@ -421,7 +421,7 @@ mmp_write_uberblock(spa_t *spa)
 			    mmp->mmp_kstat_id++, error);
 		}
 		mutex_exit(&mmp->mmp_io_lock);
-		spa_config_exit(spa, SCL_STATE, FTAG);
+		spa_config_exit(spa, SCL_STATE, mmp_tag);
 		return;
 	}