patch-2.4.3 linux/arch/alpha/mm/fault.c

• Lines: 27
• Date: Mon Mar 19 12:35:09 2001
• Orig file: v2.4.2/linux/arch/alpha/mm/fault.c
• Orig date: Fri Dec 29 14:07:19 2000

diff -u --recursive --new-file v2.4.2/linux/arch/alpha/mm/fault.c linux/arch/alpha/mm/fault.c
@@ -113,7 +113,7 @@
 		goto vmalloc_fault;
 #endif
 
-	down(&mm->mmap_sem);
+	down_read(&mm->mmap_sem);
 	vma = find_vma(mm, address);
 	if (!vma)
 		goto bad_area;
@@ -146,7 +146,7 @@
 	 * the fault.
 	 */
 	fault = handle_mm_fault(mm, vma, address, cause > 0);
-	up(&mm->mmap_sem);
+	up_read(&mm->mmap_sem);
 
 	if (fault < 0)
 		goto out_of_memory;
@@ -160,7 +160,7 @@
  * Fix it, but check if it's kernel or user first..
  */
 bad_area:
-	up(&mm->mmap_sem);
+	up_read(&mm->mmap_sem);
 
 	if (user_mode(regs)) {
 		force_sig(SIGSEGV, current);