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| author | dg <dg@FreeBSD.org> | 1995-04-09 06:03:56 +0000 |
|---|---|---|
| committer | dg <dg@FreeBSD.org> | 1995-04-09 06:03:56 +0000 |
| commit | b804a532828494b010ef0df5ed1bdef80932bc75 (patch) | |
| tree | d7255955eb6b243461a28e283cd09739dbf8dbe7 /sys/sys/vnode.h | |
| parent | 78a655a0460b2e110a8aee7d5ee8ae5d27258f2f (diff) | |
| download | FreeBSD-src-b804a532828494b010ef0df5ed1bdef80932bc75.zip FreeBSD-src-b804a532828494b010ef0df5ed1bdef80932bc75.tar.gz | |
Changes from John Dyson and myself:
Fixed remaining known bugs in the buffer IO and VM system.
vfs_bio.c:
Fixed some race conditions and locking bugs. Improved performance
by removing some (now) unnecessary code and fixing some broken
logic.
Fixed process accounting of # of FS outputs.
Properly handle NFS interrupts (B_EINTR).
(various)
Replaced calls to clrbuf() with calls to an optimized routine
called vfs_bio_clrbuf().
(various FS sync)
Sync out modified vnode_pager backed pages.
ffs_vnops.c:
Do two passes: Sync out file data first, then indirect blocks.
vm_fault.c:
Fixed deadly embrace caused by acquiring locks in the wrong order.
vnode_pager.c:
Changed to use buffer I/O system for writing out modified pages. This
should fix the problem with the modification date previous not getting
updated. Also dramatically simplifies the code. Note that this is
going to change in the future and be implemented via VOP_PUTPAGES().
vm_object.c:
Fixed a pile of bugs related to cleaning (vnode) objects. The performance
of vm_object_page_clean() is terrible when dealing with huge objects,
but this will change when we implement a binary tree to keep the object
pages sorted.
vm_pageout.c:
Fixed broken clustering of pageouts. Fixed race conditions and other
lockup style bugs in the scanning of pages. Improved performance.
Diffstat (limited to 'sys/sys/vnode.h')
| -rw-r--r-- | sys/sys/vnode.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/sys/sys/vnode.h b/sys/sys/vnode.h index 354f2e0..24d0952 100644 --- a/sys/sys/vnode.h +++ b/sys/sys/vnode.h @@ -31,7 +31,7 @@ * SUCH DAMAGE. * * @(#)vnode.h 8.7 (Berkeley) 2/4/94 - * $Id: vnode.h,v 1.17 1995/03/16 18:16:34 bde Exp $ + * $Id: vnode.h,v 1.18 1995/03/29 05:09:44 davidg Exp $ */ #ifndef _SYS_VNODE_H_ @@ -158,6 +158,7 @@ struct vattr { #define IO_SYNC 0x04 /* do I/O synchronously */ #define IO_NODELOCKED 0x08 /* underlying node already locked */ #define IO_NDELAY 0x10 /* FNDELAY flag set in file table */ +#define IO_VMIO 0x20 /* data already in VMIO space */ /* * Modes. Some values same as Ixxx entries from inode.h for now. |
