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Update the mod and access times directly from ptyfs_read() and 

ptyfs_write() rather than setting a flag and updating these times
through ptyfs_itimes() at some indeterminate time in the future.
However, just use the "time" variable to set the times instead of
using a potentially expensive call to nanotime().  A HZ resolution
on these timestamps is more than enough.

(Possibly incomplete) fix for PR kern/31430.
OK'd be christos@.
This commit is contained in:
simonb 2005-10-12 15:23:33 +00:00
parent 099795b92c
commit 30ab8089df
1 changed files with 13 additions and 3 deletions
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16
sys/fs/ptyfs/ptyfs_vnops.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: ptyfs_vnops.c,v 1.9 2005/09/12 16:42:09 christos Exp $ */
/* $NetBSD: ptyfs_vnops.c,v 1.10 2005/10/12 15:23:33 simonb Exp $ */
/*
* Copyright (c) 1993, 1995
@ -76,7 +76,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: ptyfs_vnops.c,v 1.9 2005/09/12 16:42:09 christos Exp $");
__KERNEL_RCSID(0, "$NetBSD: ptyfs_vnops.c,v 1.10 2005/10/12 15:23:33 simonb Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@ -800,11 +800,16 @@ ptyfs_read(void *v)
int a_ioflag;
struct ucred *a_cred;
} */ *ap = v;
struct timespec ts;
struct vnode *vp = ap->a_vp;
struct ptyfsnode *ptyfs = VTOPTYFS(vp);
int error;
ptyfs->ptyfs_flag |= PTYFS_ACCESS;
/* hardclock() resolution is good enough for ptyfs */
TIMEVAL_TO_TIMESPEC(&time, &ts);
(void)VOP_UPDATE(vp, &ts, &ts, 0);
switch (ptyfs->ptyfs_type) {
case PTYFSpts:
VOP_UNLOCK(vp, 0);
@ -832,11 +837,16 @@ ptyfs_write(void *v)
int a_ioflag;
struct ucred *a_cred;
} */ *ap = v;
int error;
struct timespec ts;
struct vnode *vp = ap->a_vp;
struct ptyfsnode *ptyfs = VTOPTYFS(vp);
int error;
ptyfs->ptyfs_flag |= PTYFS_MODIFY;
/* hardclock() resolution is good enough for ptyfs */
TIMEVAL_TO_TIMESPEC(&time, &ts);
(void)VOP_UPDATE(vp, &ts, &ts, 0);
switch (ptyfs->ptyfs_type) {
case PTYFSpts:
VOP_UNLOCK(vp, 0);