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[src/trunk]: src/sys/kern Process concurrent page faults on individual uvm_ob...
details: https://anonhg.NetBSD.org/src/rev/a9a8fa4bf946
branches: trunk
changeset: 970392:a9a8fa4bf946
user: ad <ad%NetBSD.org@localhost>
date: Sun Mar 22 18:45:28 2020 +0000
description:
Process concurrent page faults on individual uvm_objects / vm_amaps in
parallel, where the relevant pages are already in-core. Proposed on
tech-kern.
Temporarily disabled on MP architectures with __HAVE_UNLOCKED_PMAP until
adjustments are made to their pmaps.
diffstat:
sys/kern/vfs_vnode.c | 5 +++--
1 files changed, 3 insertions(+), 2 deletions(-)
diffs (26 lines):
diff -r 01e1f264c9c4 -r a9a8fa4bf946 sys/kern/vfs_vnode.c
--- a/sys/kern/vfs_vnode.c Sun Mar 22 18:32:41 2020 +0000
+++ b/sys/kern/vfs_vnode.c Sun Mar 22 18:45:28 2020 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: vfs_vnode.c,v 1.115 2020/03/22 16:43:57 ad Exp $ */
+/* $NetBSD: vfs_vnode.c,v 1.116 2020/03/22 18:45:28 ad Exp $ */
/*-
* Copyright (c) 1997-2011, 2019, 2020 The NetBSD Foundation, Inc.
@@ -155,7 +155,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: vfs_vnode.c,v 1.115 2020/03/22 16:43:57 ad Exp $");
+__KERNEL_RCSID(0, "$NetBSD: vfs_vnode.c,v 1.116 2020/03/22 18:45:28 ad Exp $");
#ifdef _KERNEL_OPT
#include "opt_pax.h"
@@ -1676,6 +1676,7 @@
cpu_count(CPU_COUNT_FILEPAGES, vp->v_uobj.uo_npages);
}
vp->v_iflag &= ~(VI_TEXT|VI_EXECMAP);
+ vp->v_iflag |= VI_DEADCHECK; /* for genfs_getpages() */
mutex_exit(vp->v_interlock);
rw_exit(vp->v_uobj.vmobjlock);
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