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| author | Kip Macy <kmacy@FreeBSD.org> | 2010-04-30 00:46:43 +0000 |
|---|---|---|
| committer | Kip Macy <kmacy@FreeBSD.org> | 2010-04-30 00:46:43 +0000 |
| commit | 2965a4531505c497a6bbc6f2974499a520c75394 (patch) | |
| tree | 250705d42bcb9b364f4fd2233c38faaadadf7ae0 /sys/amd64/include/vmparam.h | |
| parent | 106b2e2ff2025f21388ba446ce5af0fe944db767 (diff) | |
| download | src-2965a4531505c497a6bbc6f2974499a520c75394.tar.gz src-2965a4531505c497a6bbc6f2974499a520c75394.zip | |
On Alan's advice, rather than do a wholesale conversion on a single
architecture from page queue lock to a hashed array of page locks
(based on a patch by Jeff Roberson), I've implemented page lock
support in the MI code and have only moved vm_page's hold_count
out from under page queue mutex to page lock. This changes
pmap_extract_and_hold on all pmaps.
Supported by: Bitgravity Inc.
Discussed with: alc, jeffr, and kib
Notes
Notes:
svn path=/head/; revision=207410
Diffstat (limited to 'sys/amd64/include/vmparam.h')
| -rw-r--r-- | sys/amd64/include/vmparam.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/sys/amd64/include/vmparam.h b/sys/amd64/include/vmparam.h index 0b5004c68189..6dbe37137677 100644 --- a/sys/amd64/include/vmparam.h +++ b/sys/amd64/include/vmparam.h @@ -145,6 +145,10 @@ #define VM_LEVEL_0_ORDER 9 #endif +#ifdef SMP +#define PA_LOCK_COUNT 256 +#endif + /* * Virtual addresses of things. Derived from the page directory and * page table indexes from pmap.h for precision. |