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Explicitly initialize the page's queue field to PQ_NONE instead of relying

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on PQ_NONE being zero.

Redefine PQ_NONE and PQ_COUNT so that a page queue isn't allocated for
PQ_NONE.

Reviewed by:	kib@
This commit is contained in:
Alan Cox 2011-01-17 19:17:26 +00:00
parent df74996c3d
commit 44e46b9e53
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=217508
4 changed files with 8 additions and 5 deletions
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1
sys/vm/device_pager.c
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@ -318,6 +318,7 @@ dev_pager_getfake(vm_paddr_t paddr, vm_memattr_t memattr)
m = uma_zalloc(fakepg_zone, M_WAITOK | M_ZERO);
m->phys_addr = paddr;
m->queue = PQ_NONE;
/* Fictitious pages don't use "segind". */
m->flags = PG_FICTITIOUS;
/* Fictitious pages don't use "order" or "pool". */

1
sys/vm/sg_pager.c
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@ -242,6 +242,7 @@ sg_pager_getfake(vm_paddr_t paddr, vm_memattr_t memattr)
m = uma_zalloc(fakepg_zone, M_WAITOK | M_ZERO);
m->phys_addr = paddr;
m->queue = PQ_NONE;
/* Fictitious pages don't use "segind". */
m->flags = PG_FICTITIOUS;
/* Fictitious pages don't use "order" or "pool". */

10
sys/vm/vm_page.h
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@ -146,11 +146,11 @@ struct vm_page {
#define VPO_SWAPINPROG 0x0200 /* swap I/O in progress on page */
#define VPO_NOSYNC 0x0400 /* do not collect for syncer */
#define PQ_NONE 0
#define PQ_INACTIVE 1
#define PQ_ACTIVE 2
#define PQ_HOLD 3
#define PQ_COUNT 4
#define PQ_NONE 255
#define PQ_INACTIVE 0
#define PQ_ACTIVE 1
#define PQ_HOLD 2
#define PQ_COUNT 3
struct vpgqueues {
struct pglist pl;

1
sys/vm/vm_phys.c
View File

@ -385,6 +385,7 @@ vm_phys_add_page(vm_paddr_t pa)
cnt.v_page_count++;
m = vm_phys_paddr_to_vm_page(pa);
m->phys_addr = pa;
m->queue = PQ_NONE;
m->segind = vm_phys_paddr_to_segind(pa);
m->flags = PG_FREE;
KASSERT(m->order == VM_NFREEORDER,