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| author | attilio <attilio@FreeBSD.org> | 2013-02-20 10:38:34 +0000 |
|---|---|---|
| committer | attilio <attilio@FreeBSD.org> | 2013-02-20 10:38:34 +0000 |
| commit | 658534ed5a02db4fef5b0630008502474d6c26d6 (patch) | |
| tree | 567755b13eb4e24198cc8098e62ff4a975f8486c /sys/vm/vm_pager.h | |
| parent | 5dce0c1384f698b3a27a82e72e3cbcf49b325404 (diff) | |
| download | FreeBSD-src-658534ed5a02db4fef5b0630008502474d6c26d6.zip FreeBSD-src-658534ed5a02db4fef5b0630008502474d6c26d6.tar.gz | |
Switch vm_object lock to be a rwlock.
* VM_OBJECT_LOCK and VM_OBJECT_UNLOCK are mapped to write operations
* VM_OBJECT_SLEEP() is introduced as a general purpose primitve to
get a sleep operation using a VM_OBJECT_LOCK() as protection
* The approach must bear with vm_pager.h namespace pollution so many
files require including directly rwlock.h
Diffstat (limited to 'sys/vm/vm_pager.h')
| -rw-r--r-- | sys/vm/vm_pager.h | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/sys/vm/vm_pager.h b/sys/vm/vm_pager.h index bb7a5ec..eaf45a07 100644 --- a/sys/vm/vm_pager.h +++ b/sys/vm/vm_pager.h @@ -124,7 +124,7 @@ vm_pager_get_pages( ) { int r; - VM_OBJECT_LOCK_ASSERT(object, MA_OWNED); + VM_OBJECT_LOCK_ASSERT(object, RA_WLOCKED); r = (*pagertab[object->type]->pgo_getpages)(object, m, count, reqpage); if (r == VM_PAGER_OK && m[reqpage]->valid != VM_PAGE_BITS_ALL) { vm_page_zero_invalid(m[reqpage], TRUE); @@ -141,7 +141,7 @@ vm_pager_put_pages( int *rtvals ) { - VM_OBJECT_LOCK_ASSERT(object, MA_OWNED); + VM_OBJECT_LOCK_ASSERT(object, RA_WLOCKED); (*pagertab[object->type]->pgo_putpages) (object, m, count, flags, rtvals); } @@ -165,7 +165,7 @@ vm_pager_has_page( ) { boolean_t ret; - VM_OBJECT_LOCK_ASSERT(object, MA_OWNED); + VM_OBJECT_LOCK_ASSERT(object, RA_WLOCKED); ret = (*pagertab[object->type]->pgo_haspage) (object, offset, before, after); return (ret); @@ -188,7 +188,7 @@ static __inline void vm_pager_page_unswapped(vm_page_t m) { - VM_OBJECT_LOCK_ASSERT(m->object, MA_OWNED); + VM_OBJECT_LOCK_ASSERT(m->object, RA_WLOCKED); if (pagertab[m->object->type]->pgo_pageunswapped) (*pagertab[m->object->type]->pgo_pageunswapped)(m); } |
