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| author | dyson <dyson@FreeBSD.org> | 1996-10-12 21:35:25 +0000 |
|---|---|---|
| committer | dyson <dyson@FreeBSD.org> | 1996-10-12 21:35:25 +0000 |
| commit | 57b4eae0a1b560daffdf0c095a7bcc36bc137858 (patch) | |
| tree | 1514d1dde20f9ca659b86662c3565290d775a93e /sys/i386/include/pmap.h | |
| parent | 01549fd11d3bc0ad90ac3bf29fa51ab279360b55 (diff) | |
| download | FreeBSD-src-57b4eae0a1b560daffdf0c095a7bcc36bc137858.zip FreeBSD-src-57b4eae0a1b560daffdf0c095a7bcc36bc137858.tar.gz | |
Performance optimizations. One of which was meant to go in before the
previous snap. Specifically, kern_exit and kern_exec now makes a
call into the pmap module to do a very fast removal of pages from the
address space. Additionally, the pmap module now updates the PG_MAPPED
and PG_WRITABLE flags. This is an optional optimization, but helpful
on the X86.
Diffstat (limited to 'sys/i386/include/pmap.h')
| -rw-r--r-- | sys/i386/include/pmap.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/sys/i386/include/pmap.h b/sys/i386/include/pmap.h index 03e58d5..78e335a 100644 --- a/sys/i386/include/pmap.h +++ b/sys/i386/include/pmap.h @@ -42,7 +42,7 @@ * * from: hp300: @(#)pmap.h 7.2 (Berkeley) 12/16/90 * from: @(#)pmap.h 7.4 (Berkeley) 5/12/91 - * $Id: pmap.h,v 1.43 1996/09/08 16:57:45 dyson Exp $ + * $Id: pmap.h,v 1.44 1996/10/12 20:36:04 bde Exp $ */ #ifndef _MACHINE_PMAP_H_ @@ -198,7 +198,9 @@ typedef struct pv_entry { pmap_t pv_pmap; /* pmap where mapping lies */ vm_offset_t pv_va; /* virtual address for mapping */ TAILQ_ENTRY(pv_entry) pv_list; +#if PMAP_PVLIST TAILQ_ENTRY(pv_entry) pv_plist; +#endif vm_page_t pv_ptem; /* VM page for pte */ } *pv_entry_t; |
