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kernel/vm: Fix copy/paste bug in vm_cache_acquire_locked_page_cache.

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This fixes a regression from 9e89f7c068c3b3b4c9d74bb82679c27a2c12b10a.

Even if SwitchFromReadLock fails, the original read lock has been released,
and so we need to re-acquire the lock before continuing.

Should fix a KDL reported by X512.
This commit is contained in:
Augustin Cavalier 2024-09-21 11:47:21 -04:00
parent cd333360b3
commit eb26bd6c47
1 changed files with 1 additions and 1 deletions
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2
src/system/kernel/vm/VMCache.cpp
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@ -593,7 +593,7 @@ vm_cache_acquire_locked_page_cache(vm_page* page, bool dontWait)
VMCache* cache = cacheRef->cache;
if (!cache->SwitchFromReadLock(&sCacheListLock)) {
// cache has been deleted
rw_lock_read_unlock(&sCacheListLock);
rw_lock_read_lock(&sCacheListLock);
continue;
}