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

• Lines: 44
• Date: Mon Mar 19 12:35:10 2001
• Orig file: v2.4.2/linux/arch/sh/mm/fault.c
• Orig date: Thu Jan 4 13:19:13 2001

diff -u --recursive --new-file v2.4.2/linux/arch/sh/mm/fault.c linux/arch/sh/mm/fault.c
@@ -109,7 +109,7 @@
 	if (in_interrupt() || !mm)
 		goto no_context;
 
-	down(&mm->mmap_sem);
+	down_read(&mm->mmap_sem);
 
 	vma = find_vma(mm, address);
 	if (!vma)
@@ -151,7 +151,7 @@
 		goto out_of_memory;
 	}
 
-	up(&mm->mmap_sem);
+	up_read(&mm->mmap_sem);
 	return;
 
 /*
@@ -159,7 +159,7 @@
  * 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)) {
 		tsk->thread.address = address;
@@ -208,14 +208,14 @@
  * us unable to handle the page fault gracefully.
  */
 out_of_memory:
-	up(&mm->mmap_sem);
+	up_read(&mm->mmap_sem);
 	printk("VM: killing process %s\n", tsk->comm);
 	if (user_mode(regs))
 		do_exit(SIGKILL);
 	goto no_context;
 
 do_sigbus:
-	up(&mm->mmap_sem);
+	up_read(&mm->mmap_sem);
 
 	/*
 	 * Send a sigbus, regardless of whether we were in kernel