X-Git-Url: https://git.stricted.de/?a=blobdiff_plain;f=mm%2Futil.c;h=a4c6b53d76d1bc1b51bbc98eec54b342bab0af35;hb=aba762bde4b814801a4cf95013a2dd3877e5ee01;hp=ab1424dbe2e6c9396ee66ab4446f1bc1cd557382;hpb=2206c3ab2bc45abe6b4472c37d6bdfa2fbcf9d67;p=GitHub%2Fmt8127%2Fandroid_kernel_alcatel_ttab.git

diff --git a/mm/util.c b/mm/util.c
index ab1424dbe2e6..a4c6b53d76d1 100644
--- a/mm/util.c
+++ b/mm/util.c
@@ -7,6 +7,7 @@
 #include <linux/security.h>
 #include <linux/swap.h>
 #include <linux/swapops.h>
+#include <linux/vmalloc.h>
 #include <asm/uaccess.h>
 
 #include "internal.h"
@@ -272,17 +273,14 @@ pid_t vm_is_stack(struct task_struct *task,
 
 	if (in_group) {
 		struct task_struct *t;
-		rcu_read_lock();
-		if (!pid_alive(task))
-			goto done;
 
-		t = task;
-		do {
+		rcu_read_lock();
+		for_each_thread(task, t) {
 			if (vm_is_stack_for_task(t, vma)) {
 				ret = t->pid;
 				goto done;
 			}
-		} while_each_thread(task, t);
+		}
 done:
 		rcu_read_unlock();
 	}
@@ -384,6 +382,15 @@ unsigned long vm_mmap(struct file *file, unsigned long addr,
 }
 EXPORT_SYMBOL(vm_mmap);
 
+void kvfree(const void *addr)
+{
+	if (is_vmalloc_addr(addr))
+		vfree(addr);
+	else
+		kfree(addr);
+}
+EXPORT_SYMBOL(kvfree);
+
 struct address_space *page_mapping(struct page *page)
 {
 	struct address_space *mapping = page->mapping;
@@ -401,6 +408,7 @@ struct address_space *page_mapping(struct page *page)
 		mapping = NULL;
 	return mapping;
 }
+EXPORT_SYMBOL_GPL(page_mapping);
 
 /* Tracepoints definitions. */
 EXPORT_TRACEPOINT_SYMBOL(kmalloc);