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Added a "reenter" parameter to the {read|write}_pages() functions to give file

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systems a chance to know if they have locked already.
This fixes a locking problem in BFS where one thread tried to acquire two read
locks (where someone else trying to acquire a write lock would have caused a
dead lock).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@17108 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Axel Dörfler
2006-04-12 13:34:04 +00:00
parent 4d89d3e7e1
commit 97e069713b
18 changed files with 104 additions and 80 deletions
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headers/private/kernel/vm_cache.h
+1 -1
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@@ -27,7 +27,7 @@ void vm_cache_release_ref(vm_cache_ref *cache_ref);
vm_page *vm_cache_lookup_page(vm_cache_ref *cacheRef, off_t page);
void vm_cache_insert_page(vm_cache_ref *cacheRef, vm_page *page, off_t offset);
void vm_cache_remove_page(vm_cache_ref *cacheRef, vm_page *page);
status_t vm_cache_write_modified(vm_cache_ref *ref);
status_t vm_cache_write_modified(vm_cache_ref *ref, bool fsReenter);
status_t vm_cache_set_minimal_commitment(vm_cache_ref *ref, off_t commitment);
status_t vm_cache_resize(vm_cache_ref *cacheRef, off_t newSize);
status_t vm_cache_insert_area(vm_cache_ref *cacheRef, vm_area *area);