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Disabled stealing an unused page from some cache. Unfortunately this 

introduced a locking problem, since vm_page_allocate_page() is invoked
with a locked cache. I guess I have to rethink the design. :-/


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20487 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Ingo Weinhold 2007-04-01 00:16:36 +00:00
parent c1316c8dd3
commit b5975dbf4e
1 changed files with 5 additions and 0 deletions
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5
src/add-ons/kernel/file_systems/userlandfs/server/haiku_file_cache.cpp
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@ -366,6 +366,10 @@ vm_page_allocate_page(int state)
// no free page
#if 0
// TODO: Nice idea in principle, but causes a serious locking problem.
// vm_page_allocate_page() is always invoked with some cached locked at the
// same time. Thus locking a cache here to steal a page can cause a deadlock.
// If the limit for allocated pages has been reached, we try to steal an
// unused page.
if (sPagePool.allocatedPages >= kMaxAllocatedPages
@ -431,6 +435,7 @@ vm_page_allocate_page(int state)
return page;
}
}
#endif // 0
// no page yet -- allocate a new one