Module Name: src
Committed By: riastradh
Date: Tue Sep 13 09:35:32 UTC 2022
Modified Files:
src/sys/kern: vfs_mount.c
Log Message:
vflush(9): Insert `involuntary' preemption point at each vnode.
Currently there is a voluntary yield every 100ms, but that's a long
time. Should help to avoid hogging the CPU while flushing lots of
data to big disks on systems without kpreemption.
To generate a diff of this commit:
cvs rdiff -u -r1.96 -r1.97 src/sys/kern/vfs_mount.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/kern/vfs_mount.c
diff -u src/sys/kern/vfs_mount.c:1.96 src/sys/kern/vfs_mount.c:1.97
--- src/sys/kern/vfs_mount.c:1.96 Fri Aug 26 11:03:53 2022
+++ src/sys/kern/vfs_mount.c Tue Sep 13 09:35:31 2022
@@ -1,4 +1,4 @@
-/* $NetBSD: vfs_mount.c,v 1.96 2022/08/26 11:03:53 hannken Exp $ */
+/* $NetBSD: vfs_mount.c,v 1.97 2022/09/13 09:35:31 riastradh Exp $ */
/*-
* Copyright (c) 1997-2020 The NetBSD Foundation, Inc.
@@ -67,7 +67,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: vfs_mount.c,v 1.96 2022/08/26 11:03:53 hannken Exp $");
+__KERNEL_RCSID(0, "$NetBSD: vfs_mount.c,v 1.97 2022/09/13 09:35:31 riastradh Exp $");
#include <sys/param.h>
#include <sys/kernel.h>
@@ -549,6 +549,7 @@ vflushnext(struct vnode_iterator *marker
yield();
*when = getticks() + hz / 10;
}
+ preempt_point();
return vfs_vnode_iterator_next1(marker, NULL, NULL, true);
}
