git: 19a172158cc1 - main - vfs_mountroot: Wait for GEOM idle post root holds

The branch main has been updated by cperciva:

URL: https://cgit.FreeBSD.org/src/commit/?id=19a172158cc12b3bdd848fead732f2151c36e526

commit 19a172158cc12b3bdd848fead732f2151c36e526
Author:     Colin Percival <cperciva@FreeBSD.org>
AuthorDate: 2021-12-20 17:51:34 +0000
Commit:     Colin Percival <cperciva@FreeBSD.org>
CommitDate: 2021-12-29 20:41:08 +0000

    vfs_mountroot: Wait for GEOM idle post root holds
    
    In the case of a root hold related to the initialization of a disk
    device, a flurry of GEOM tasting is likely to take place as soon as
    the device is initialized and the root hold is released.  If we
    don't wait for GEOM idle it's easy for vfs_mountroot to "win" the
    race and proceed before the root filesystem GEOM is ready.
    
    Reviewed by:    imp
    Sponsored by:   https://www.patreon.com/cperciva
    Differential Revision:  https://reviews.freebsd.org/D33592
---
 sys/kern/vfs_mountroot.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sys/kern/vfs_mountroot.c b/sys/kern/vfs_mountroot.c
index bb431c38a6f6..6257f9592d86 100644
--- a/sys/kern/vfs_mountroot.c
+++ b/sys/kern/vfs_mountroot.c
@@ -1005,6 +1005,7 @@ vfs_mountroot_wait(void)
 		    hz);
 		TSUNWAIT("root mount");
 	}
+	g_waitidle();
 
 	TSEXIT();
 }