git: b8ae329db949 - releng/13.0 - Restore dirty dnode detection logic

The branch releng/13.0 has been updated by markj:

URL: https://cgit.FreeBSD.org/src/commit/?id=b8ae329db949868b8275091da0844ffbff50c65a

commit b8ae329db949868b8275091da0844ffbff50c65a
Author:     Brian Behlendorf <behlendorf1@llnl.gov>
AuthorDate: 2021-11-11 00:14:32 +0000
Commit:     Mark Johnston <markj@FreeBSD.org>
CommitDate: 2022-03-20 14:10:36 +0000

    Restore dirty dnode detection logic
    
    In addition to flushing memory mapped regions when checking holes,
    commit de198f2d95 modified the dirty dnode detection logic to check
    the dn->dn_dirty_records instead of the dn->dn_dirty_link.  Relying
    on the dirty record has not be reliable, switch back to the previous
    method.
    
    Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
    Issue #11900
    Closes #12745
    (cherry picked from commit d7e640cf95f72deeca501d34afed59a0bc9d7940)
    
    Approved by:    so
    Security:       FreeBSD-EN-22:13.zfs
---
 sys/contrib/openzfs/module/zfs/dnode.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sys/contrib/openzfs/module/zfs/dnode.c b/sys/contrib/openzfs/module/zfs/dnode.c
index 8592c5f8c3a9..b69ba68ec780 100644
--- a/sys/contrib/openzfs/module/zfs/dnode.c
+++ b/sys/contrib/openzfs/module/zfs/dnode.c
@@ -1661,7 +1661,7 @@ dnode_is_dirty(dnode_t *dn)
 	mutex_enter(&dn->dn_mtx);
 
 	for (int i = 0; i < TXG_SIZE; i++) {
-		if (list_head(&dn->dn_dirty_records[i]) != NULL) {
+		if (multilist_link_active(&dn->dn_dirty_link[i])) {
 			mutex_exit(&dn->dn_mtx);
 			return (B_TRUE);
 		}