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| author | alc <alc@FreeBSD.org> | 2004-04-08 19:08:49 +0000 |
|---|---|---|
| committer | alc <alc@FreeBSD.org> | 2004-04-08 19:08:49 +0000 |
| commit | e8b438d9b62fb996c6f7d1b0235975f60de0962f (patch) | |
| tree | 026c61d2aa5552e5c47e376657522e943695fa7c | |
| parent | 9bd68e030421bb064cda7fb28c9ac4fe5ce9a9d8 (diff) | |
| download | FreeBSD-src-e8b438d9b62fb996c6f7d1b0235975f60de0962f.zip FreeBSD-src-e8b438d9b62fb996c6f7d1b0235975f60de0962f.tar.gz | |
The demise of vm_pager_map_page() in revision 1.93 of vm/vm_pager.c permits
the reduction of the pager map's size by 8M bytes. In other words, eight
megabytes of largely wasted KVA are returned to the kernel map for use
elsewhere.
| -rw-r--r-- | sys/vm/vm_init.c | 4 | ||||
| -rw-r--r-- | sys/vm/vm_pager.c | 3 | ||||
| -rw-r--r-- | sys/vm/vm_pager.h | 1 |
3 files changed, 2 insertions, 6 deletions
diff --git a/sys/vm/vm_init.c b/sys/vm/vm_init.c index 65df1a9..282dd5c 100644 --- a/sys/vm/vm_init.c +++ b/sys/vm/vm_init.c @@ -185,12 +185,12 @@ again: panic("startup: table size inconsistency"); clean_map = kmem_suballoc(kernel_map, &kmi->clean_sva, &kmi->clean_eva, - (nbuf*BKVASIZE) + (nswbuf*MAXPHYS) + pager_map_size); + (nbuf*BKVASIZE) + (nswbuf*MAXPHYS)); buffer_map = kmem_suballoc(clean_map, &kmi->buffer_sva, &kmi->buffer_eva, (nbuf*BKVASIZE)); buffer_map->system_map = 1; pager_map = kmem_suballoc(clean_map, &kmi->pager_sva, &kmi->pager_eva, - (nswbuf*MAXPHYS) + pager_map_size); + (nswbuf*MAXPHYS)); pager_map->system_map = 1; exec_map = kmem_suballoc(kernel_map, &minaddr, &maxaddr, (16*(ARG_MAX+(PAGE_SIZE*3)))); diff --git a/sys/vm/vm_pager.c b/sys/vm/vm_pager.c index 09280fb..b6fa7a6 100644 --- a/sys/vm/vm_pager.c +++ b/sys/vm/vm_pager.c @@ -176,9 +176,6 @@ int npagers = sizeof(pagertab) / sizeof(pagertab[0]); * cleaning requests (NPENDINGIO == 64) * the maximum swap cluster size * (MAXPHYS == 64k) if you want to get the most efficiency. */ -#define PAGER_MAP_SIZE (8 * 1024 * 1024) - -int pager_map_size = PAGER_MAP_SIZE; vm_map_t pager_map; static int bswneeded; static vm_offset_t swapbkva; /* swap buffers kva */ diff --git a/sys/vm/vm_pager.h b/sys/vm/vm_pager.h index b2f6c1b..6b30f80 100644 --- a/sys/vm/vm_pager.h +++ b/sys/vm/vm_pager.h @@ -91,7 +91,6 @@ MALLOC_DECLARE(M_VMPGDATA); #endif extern vm_map_t pager_map; -extern int pager_map_size; extern struct pagerops *pagertab[]; extern struct mtx pbuf_mtx; |
