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Revert previous accidental commit. FWIW, it was part of enabling

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VM caching of disks through mmap() and stopping syncing of open files
that had their last reference in the fs removed (ie: their unsync'ed
pages get discarded on close already, so I made it stop syncing too).
This commit is contained in:
Peter Wemm 2001-07-27 15:57:17 +00:00
parent 24a590a074
commit b219758f94
2 changed files with 3 additions and 23 deletions
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3
sys/kern/vfs_bio.c
View file

@ -90,6 +90,7 @@ static void buf_daemon __P((void));
* but the code is intricate enough already.
*/
vm_page_t bogus_page;
int vmiodirenable = FALSE;
int runningbufspace;
static vm_offset_t bogus_offset;
@ -137,6 +138,8 @@ SYSCTL_INT(_vfs, OID_AUTO, getnewbufcalls, CTLFLAG_RW,
&getnewbufcalls, 0, "");
SYSCTL_INT(_vfs, OID_AUTO, getnewbufrestarts, CTLFLAG_RW,
&getnewbufrestarts, 0, "");
SYSCTL_INT(_vfs, OID_AUTO, vmiodirenable, CTLFLAG_RW,
&vmiodirenable, 0, "");
SYSCTL_INT(_vfs, OID_AUTO, bufdefragcnt, CTLFLAG_RW,
&bufdefragcnt, 0, "");
SYSCTL_INT(_vfs, OID_AUTO, buffreekvacnt, CTLFLAG_RW,

23
sys/kern/vfs_subr.c
View file

@ -83,10 +83,6 @@ static void vclean __P((struct vnode *vp, int flags, struct proc *p));
static unsigned long numvnodes;
SYSCTL_LONG(_debug, OID_AUTO, numvnodes, CTLFLAG_RD, &numvnodes, 0, "");
static int vmiodirenable = FALSE;
SYSCTL_INT(_vfs, OID_AUTO, vmiodirenable, CTLFLAG_RW,
&vmiodirenable, 0, "");
/*
* Conversion tables for conversion from vnode types to inode formats
* and back.
@ -2382,9 +2378,6 @@ loop:
if (vp->v_flag & VXLOCK) /* XXX: what if MNT_WAIT? */
continue;
if (vp->v_flag & VNOSYNC) /* unlinked, skip it */
continue;
if (flags != MNT_WAIT) {
if (VOP_GETVOBJECT(vp, &obj) != 0 ||
(obj->flags & OBJ_MIGHTBEDIRTY) == 0)
@ -2793,22 +2786,6 @@ vn_isdisk(vp, errp)
return (1);
}
/*
* Check if a vnode should be done with VMIO.
*/
int
vn_canvmio(vp)
struct vnode *vp;
{
if (!vp)
return (FALSE);
if (vp->v_type == VREG || (vmiodirenable && vp->v_type == VDIR))
return (TRUE);
if (vn_isdisk(vp, NULL))
return TRUE;
return FALSE;
}
/*
* Free data allocated by namei(); see namei(9) for details.
*/