diff options
Diffstat (limited to 'arch/s390x/mm/fault.c')
| -rw-r--r-- | arch/s390x/mm/fault.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/arch/s390x/mm/fault.c b/arch/s390x/mm/fault.c index 4c324b690..cd60eb61d 100644 --- a/arch/s390x/mm/fault.c +++ b/arch/s390x/mm/fault.c @@ -122,7 +122,7 @@ asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long error_code) * 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) { @@ -176,7 +176,7 @@ good_area: goto out_of_memory; } - up(&mm->mmap_sem); + up_read(&mm->mmap_sem); return; /* @@ -184,7 +184,7 @@ good_area: * 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) { @@ -243,14 +243,14 @@ no_context: * 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 |