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| author | dyson <dyson@FreeBSD.org> | 1996-08-21 21:56:23 +0000 |
|---|---|---|
| committer | dyson <dyson@FreeBSD.org> | 1996-08-21 21:56:23 +0000 |
| commit | 966cbc5d29e66792108ec7d19f731b46d171245b (patch) | |
| tree | 07a76a1b97882ad9c1e3805d05f820bc976c60bd /sys/fs | |
| parent | 2d0ae2fc91a319615c14ec10da1161bab780f734 (diff) | |
| download | FreeBSD-src-966cbc5d29e66792108ec7d19f731b46d171245b.zip FreeBSD-src-966cbc5d29e66792108ec7d19f731b46d171245b.tar.gz | |
Even though this looks like it, this is not a complex code change.
The interface into the "VMIO" system has changed to be more consistant
and robust. Essentially, it is now no longer necessary to call vn_open
to get merged VM/Buffer cache operation, and exceptional conditions
such as merged operation of VBLK devices is simpler and more correct.
This code corrects a potentially large set of problems including the
problems with ktrace output and loaded systems, file create/deletes,
etc.
Most of the changes to NFS are cosmetic and name changes, eliminating
a layer of subroutine calls. The direct calls to vput/vrele have
been re-instituted for better cross platform compatibility.
Reviewed by: davidg
Diffstat (limited to 'sys/fs')
| -rw-r--r-- | sys/fs/specfs/spec_vnops.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/sys/fs/specfs/spec_vnops.c b/sys/fs/specfs/spec_vnops.c index a3d87e3..58241c2 100644 --- a/sys/fs/specfs/spec_vnops.c +++ b/sys/fs/specfs/spec_vnops.c @@ -31,7 +31,7 @@ * SUCH DAMAGE. * * @(#)spec_vnops.c 8.6 (Berkeley) 4/9/94 - * $Id: spec_vnops.c,v 1.29 1996/03/19 05:13:17 dyson Exp $ + * $Id: spec_vnops.c,v 1.30 1996/07/27 03:50:31 dyson Exp $ */ #include <sys/param.h> @@ -57,6 +57,7 @@ #include <vm/vm_page.h> #include <vm/vm_pager.h> #include <vm/vnode_pager.h> +#include <vm/vm_extern.h> #include <miscfs/specfs/specdev.h> @@ -625,9 +626,13 @@ spec_close(ap) * sum of the reference counts on all the aliased * vnodes descends to one, we are on last close. */ - if ((vcount(vp) > ((vp->v_flag & VVMIO)?2:1)) && + if ((vcount(vp) > (vp->v_object?2:1)) && (vp->v_flag & VXLOCK) == 0) return (0); + + if (vp->v_object) + vnode_pager_uncache(vp); + devclose = bdevsw[major(dev)]->d_close; mode = S_IFBLK; break; |
