kernel/vm: Don't shrink commitment on precommit in VMAnonymousNoSwapCache.

Same change as was made for VMAnonymousCache.
2025-11-14 19:06:11 -05:00
parent db168093dd
commit 775449bef9
1 changed files with 4 additions and 1 deletions
@@ -101,9 +101,12 @@ VMAnonymousNoSwapCache::Commit(off_t size, int priority)

 		// pre-commit some pages to make a later failure less probable
 		fHasPrecommitted = true;
-		uint32 precommitted = fPrecommittedPages * B_PAGE_SIZE;
+		uint32 precommitted = (fPrecommittedPages * B_PAGE_SIZE);
 		if (size > precommitted)
 			size = precommitted;
+
+		// pre-commit should not shrink existing commitment
+		size += committed_size;
 	}

 	// Check to see how much we could commit - we need real memory