patch-2.4.3 linux/arch/s390/mm/fault.c
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- Lines: 44
- Date:
Mon Mar 19 12:35:11 2001
- Orig file:
v2.4.2/linux/arch/s390/mm/fault.c
- Orig date:
Wed Feb 21 18:20:14 2001
diff -u --recursive --new-file v2.4.2/linux/arch/s390/mm/fault.c linux/arch/s390/mm/fault.c
@@ -122,7 +122,7 @@
* task's user address space, so we search the VMAs
*/
- down(&mm->mmap_sem);
+ down_read(&mm->mmap_sem);
vma = find_vma(mm, address);
if (!vma)
@@ -173,7 +173,7 @@
goto out_of_memory;
}
- up(&mm->mmap_sem);
+ up_read(&mm->mmap_sem);
return;
/*
@@ -181,7 +181,7 @@
* Fix it, but check if it's kernel or user first..
*/
bad_area:
- up(&mm->mmap_sem);
+ up_read(&mm->mmap_sem);
/* User mode accesses just cause a SIGSEGV */
if (psw_mask & PSW_PROBLEM_STATE) {
@@ -240,14 +240,14 @@
* 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 (psw_mask & PSW_PROBLEM_STATE)
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
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