X-Git-Url: https://git.kernelconcepts.de/?a=blobdiff_plain;f=mm%2Fmadvise.c;h=93ee375b38e7edc7b414b7a2b6891411a45d0b0c;hb=581b605a83ec241a2aff8ef780e08b9414c8dfd8;hp=e75096b5a6d3eb4bb8eb4875d5f4bf9fd167c80e;hpb=a989705c4cf6e6c1a339c95f9daf658b4ba88ca8;p=karo-tx-linux.git

diff --git a/mm/madvise.c b/mm/madvise.c
index e75096b5a6d3..93ee375b38e7 100644
--- a/mm/madvise.c
+++ b/mm/madvise.c
@@ -10,6 +10,7 @@
 #include <linux/syscalls.h>
 #include <linux/mempolicy.h>
 #include <linux/hugetlb.h>
+#include <linux/sched.h>
 
 /*
  * Any behaviour which results in changes to the vma->vm_flags needs to
@@ -286,9 +287,11 @@ asmlinkage long sys_madvise(unsigned long start, size_t len_in, int behavior)
 	struct vm_area_struct * vma, *prev;
 	int unmapped_error = 0;
 	int error = -EINVAL;
+	int write;
 	size_t len;
 
-	if (madvise_need_mmap_write(behavior))
+	write = madvise_need_mmap_write(behavior);
+	if (write)
 		down_write(&current->mm->mmap_sem);
 	else
 		down_read(&current->mm->mmap_sem);
@@ -353,7 +356,7 @@ asmlinkage long sys_madvise(unsigned long start, size_t len_in, int behavior)
 			vma = find_vma(current->mm, start);
 	}
 out:
-	if (madvise_need_mmap_write(behavior))
+	if (write)
 		up_write(&current->mm->mmap_sem);
 	else
 		up_read(&current->mm->mmap_sem);