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| author | dyson <dyson@FreeBSD.org> | 1995-12-11 04:58:34 +0000 |
|---|---|---|
| committer | dyson <dyson@FreeBSD.org> | 1995-12-11 04:58:34 +0000 |
| commit | 601ed1a4c089930a40f8f1dedb927f3b5b9f2d90 (patch) | |
| tree | 2b7bb6b5f65218fdc977df2e1db5ccaf89d154c6 /sys/vm/device_pager.c | |
| parent | 0e4700269e1c805f7d7e0caae28fbaebf096ac31 (diff) | |
| download | FreeBSD-src-601ed1a4c089930a40f8f1dedb927f3b5b9f2d90.zip FreeBSD-src-601ed1a4c089930a40f8f1dedb927f3b5b9f2d90.tar.gz | |
Changes to support 1Tb filesizes. Pages are now named by an
(object,index) pair instead of (object,offset) pair.
Diffstat (limited to 'sys/vm/device_pager.c')
| -rw-r--r-- | sys/vm/device_pager.c | 22 |
1 files changed, 12 insertions, 10 deletions
diff --git a/sys/vm/device_pager.c b/sys/vm/device_pager.c index 2dd0345..6302f6d 100644 --- a/sys/vm/device_pager.c +++ b/sys/vm/device_pager.c @@ -36,7 +36,7 @@ * SUCH DAMAGE. * * @(#)device_pager.c 8.1 (Berkeley) 6/11/93 - * $Id: device_pager.c,v 1.15 1995/12/03 18:59:55 bde Exp $ + * $Id: device_pager.c,v 1.16 1995/12/07 12:48:01 davidg Exp $ */ #include <sys/param.h> @@ -86,7 +86,7 @@ dev_pager_alloc(handle, size, prot, foff) void *handle; vm_size_t size; vm_prot_t prot; - vm_offset_t foff; + vm_ooffset_t foff; { dev_t dev; d_mmap_t *mapfunc; @@ -138,7 +138,8 @@ dev_pager_alloc(handle, size, prot, foff) /* * Allocate object and associate it with the pager. */ - object = vm_object_allocate(OBJT_DEVICE, foff + size); + object = vm_object_allocate(OBJT_DEVICE, + OFF_TO_IDX(foff + size)); object->handle = handle; TAILQ_INIT(&object->un_pager.devp.devp_pglist); TAILQ_INSERT_TAIL(&dev_pager_object_list, object, pager_object_list); @@ -147,8 +148,8 @@ dev_pager_alloc(handle, size, prot, foff) * Gain a reference to the object. */ vm_object_reference(object); - if (foff + size > object->size) - object->size = foff + size; + if (OFF_TO_IDX(foff + size) > object->size) + object->size = OFF_TO_IDX(foff + size); } dev_pager_alloc_lock = 0; @@ -181,7 +182,8 @@ dev_pager_getpages(object, m, count, reqpage) int count; int reqpage; { - vm_offset_t offset, paddr; + vm_offset_t offset; + vm_offset_t paddr; vm_page_t page; dev_t dev; int i, s; @@ -189,14 +191,14 @@ dev_pager_getpages(object, m, count, reqpage) int prot; dev = (dev_t) (u_long) object->handle; - offset = m[reqpage]->offset + object->paging_offset; + offset = m[reqpage]->pindex + OFF_TO_IDX(object->paging_offset); prot = PROT_READ; /* XXX should pass in? */ mapfunc = cdevsw[major(dev)].d_mmap; if (mapfunc == NULL || mapfunc == (d_mmap_t *)nullop) panic("dev_pager_getpage: no map function"); - paddr = pmap_phys_address((*mapfunc) ((dev_t) dev, (int) offset, prot)); + paddr = pmap_phys_address((*mapfunc) ((dev_t) dev, (int) offset << PAGE_SHIFT, prot)); #ifdef DIAGNOSTIC if (paddr == -1) panic("dev_pager_getpage: map function returns error"); @@ -230,9 +232,9 @@ dev_pager_putpages(object, m, count, sync, rtvals) } boolean_t -dev_pager_haspage(object, offset, before, after) +dev_pager_haspage(object, pindex, before, after) vm_object_t object; - vm_offset_t offset; + vm_pindex_t pindex; int *before; int *after; { |
