Alan Cox 5a32489377 Make vm_page's PG_ZERO flag immutable between the time of the page's ... allocation and deallocation. This flag's principal use is shortly after allocation. For such cases, clearing the flag is pointless. The only unusual use of PG_ZERO is in vfs_bio_clrbuf(). However, allocbuf() never requests a prezeroed page. So, vfs_bio_clrbuf() never sees a prezeroed page. Reviewed by: tegge@		2004-05-06 05:03:23 +00:00
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default_pager.c
device_pager.c	Push down Giant into vm_pager_get_pages(). The only get pages methods that	2004-04-23 06:10:58 +00:00
phys_pager.c	Zero the physical page only if it is invalid and not prezeroed.	2004-04-25 07:58:59 +00:00
pmap.h
swap_pager.c	Make vm_page's PG_ZERO flag immutable between the time of the page's	2004-05-06 05:03:23 +00:00
swap_pager.h
uma_core.c
uma_dbg.c
uma_dbg.h
uma_int.h
uma.h
vm_contig.c
vm_extern.h
vm_fault.c	Make vm_page's PG_ZERO flag immutable between the time of the page's	2004-05-06 05:03:23 +00:00
vm_glue.c
vm_init.c
vm_kern.c	Push down the responsibility for zeroing a physical page from the	2004-04-24 20:53:55 +00:00
vm_kern.h
vm_map.c	In cases where a file was resident in memory mmap(..., PROT_NONE, ...)	2004-04-24 03:46:44 +00:00
vm_map.h	In cases where a file was resident in memory mmap(..., PROT_NONE, ...)	2004-04-24 03:46:44 +00:00
vm_meter.c
vm_mmap.c
vm_object.c
vm_object.h
vm_page.c	Update the comment describing vm_page_grab() to reflect the previous	2004-04-24 21:36:23 +00:00
vm_page.h
vm_pageout.c
vm_pageout.h
vm_pageq.c
vm_pager.c
vm_pager.h
vm_param.h
vm_unix.c
vm_zeroidle.c
vm.h
vnode_pager.c	Make vm_page's PG_ZERO flag immutable between the time of the page's	2004-05-06 05:03:23 +00:00
vnode_pager.h