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authordyson <dyson@FreeBSD.org>1996-01-19 04:00:31 +0000
committerdyson <dyson@FreeBSD.org>1996-01-19 04:00:31 +0000
commit8fc8a772af22f6e03233d248fa2dbd9b5c2bdd7d (patch)
tree3c31fd95ea745005a9cd6733db5a16f31bd828a6 /sys/fs/procfs
parent6755beedbf0ddaa9e66e91c8e74f620ede6bfad5 (diff)
downloadFreeBSD-src-8fc8a772af22f6e03233d248fa2dbd9b5c2bdd7d.zip
FreeBSD-src-8fc8a772af22f6e03233d248fa2dbd9b5c2bdd7d.tar.gz
Eliminated many redundant vm_map_lookup operations for vm_mmap.
Speed up for vfs_bio -- addition of a routine bqrelse to greatly diminish overhead for merged cache. Efficiency improvement for vfs_cluster. It used to do alot of redundant calls to cluster_rbuild. Correct the ordering for vrele of .text and release of credentials. Use the selective tlb update for 486/586/P6. Numerous fixes to the size of objects allocated for files. Additionally, fixes in the various pagers. Fixes for proper positioning of vnode_pager_setsize in msdosfs and ext2fs. Fixes in the swap pager for exhausted resources. The pageout code will not as readily thrash. Change the page queue flags (PG_ACTIVE, PG_INACTIVE, PG_FREE, PG_CACHE) into page queue indices (PQ_ACTIVE, PQ_INACTIVE, PQ_FREE, PQ_CACHE), thereby improving efficiency of several routines. Eliminate even more unnecessary vm_page_protect operations. Significantly speed up process forks. Make vm_object_page_clean more efficient, thereby eliminating the pause that happens every 30seconds. Make sequential clustered writes B_ASYNC instead of B_DELWRI even in the case of filesystems mounted async. Fix a panic with busy pages when write clustering is done for non-VMIO buffers.
Diffstat (limited to 'sys/fs/procfs')
-rw-r--r--sys/fs/procfs/procfs_mem.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/sys/fs/procfs/procfs_mem.c b/sys/fs/procfs/procfs_mem.c
index 7dbbb7d..b536055 100644
--- a/sys/fs/procfs/procfs_mem.c
+++ b/sys/fs/procfs/procfs_mem.c
@@ -37,7 +37,7 @@
*
* @(#)procfs_mem.c 8.4 (Berkeley) 1/21/94
*
- * $Id: procfs_mem.c,v 1.13 1995/12/11 04:56:31 dyson Exp $
+ * $Id: procfs_mem.c,v 1.14 1995/12/17 07:19:24 bde Exp $
*/
/*
@@ -171,7 +171,8 @@ procfs_rwmem(p, uio)
/* Find space in kernel_map for the page we're interested in */
if (!error)
error = vm_map_find(kernel_map, object,
- IDX_TO_OFF(pindex), &kva, PAGE_SIZE, 1);
+ IDX_TO_OFF(pindex), &kva, PAGE_SIZE, 1,
+ VM_PROT_ALL, VM_PROT_ALL, 0);
if (!error) {
/*
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