haiku

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History

Ingo Weinhold 3632eeedb9 * VMCache: Added a UserData attribute which can be used by the lock holder.

* Added "bool consumerLocked" parameter to VMCache::Unlock() and
  ReleaseRefAndUnlock(). Since Unlock() may cause the cache to be merged with
  a consumer cache, the flag is needed to prevent a deadlock in case the
  caller still holds a lock to the consumer. Hasn't been a problem yet, since
  that situation never occurred.
* VMCacheChainLocker: Reversed unlocking order to bottom-up. The other
  direction could cause a deadlock in case caches would be merged, since the
  locking order would be reversed. The way VMCacheChainLocker was used this
  didn't happen, though.
* fault_get_page(): While copying a page from a lower cache to the top cache,
  we do now unlock all caches but the top one, so we don't unnecessarily
  kill concurrency.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35153 a95241bf-73f2-0310-859d-f6bbb57e9c96

2010-01-19 03:02:11 +00:00

vm_page.h

* Added new debug feature (DEBUG_PAGE_ACCESS) to detect invalid concurrent

2010-01-07 02:37:05 +00:00

vm_priv.h

…

vm_types.h

* Added vm_page::accessed flag. Works analogously to vm_page::modified.

2010-01-15 22:32:51 +00:00

vm.h

* Added vm_page::accessed flag. Works analogously to vm_page::modified.

2010-01-15 22:32:51 +00:00