---

yaml --- r: 312232 b: refs/heads/master c: 7a5bfb6 h: refs/heads/master v: v3
git-mirror · Jun 16, 2012 · 8d4f7c5 · 8d4f7c5
1 parent 4d44df9
commit 8d4f7c5
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Showing 2 changed files with 11 additions and 1 deletion.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 268720903f87e0b84b161626c4447b81671b5d18
+refs/heads/master: 7a5bfb66b07f22d2429db776da7bb8b57bfb5cff
diff --git a/trunk/kernel/events/uprobes.c b/trunk/kernel/events/uprobes.c
@@ -761,6 +761,16 @@ build_map_info(struct address_space *mapping, loff_t offset, bool is_register)
 		if (!valid_vma(vma, is_register))
 			continue;
 
+		if (!prev && !more) {
+			/*
+			 * Needs GFP_NOWAIT to avoid i_mmap_mutex recursion through
+			 * reclaim. This is optimistic, no harm done if it fails.
+			 */
+			prev = kmalloc(sizeof(struct map_info),
+					GFP_NOWAIT | __GFP_NOMEMALLOC | __GFP_NOWARN);
+			if (prev)
+				prev->next = NULL;
+		}
 		if (!prev) {
 			more++;
 			continue;