i2p/haiku-beta6
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

The block_cache::LowMemoryHandler() must check if it could acquire the cache's lock;

Browse Source 
it might have been deleted in the mean time.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15565 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Axel Dörfler
2005-12-16 15:50:13 +00:00
parent 182f88dda1
commit 4c0f46e2a3
1 changed files with 7 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/system/kernel/cache/block_cache.cpp
Vendored
+7
View File
@@ -350,6 +350,13 @@ block_cache::LowMemoryHandler(void *data, int32 level)
block_cache *cache = (block_cache *)data; block_cache *cache = (block_cache *)data;
BenaphoreLocker locker(&cache->lock); BenaphoreLocker locker(&cache->lock);
if (!locker.IsLocked()) {
// If our block_cache were deleted, it could be that we had
// been called before that deletion went through, therefore,
// acquiring its lock might fail.
return;
}
TRACE(("block_cache: low memory handler called with level %ld\n", level)); TRACE(("block_cache: low memory handler called with level %ld\n", level));
// free some blocks according to the low memory state // free some blocks according to the low memory state