lkml.org 
[lkml]   [2018]   [Feb]   [4]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 41/64] arch/cris: use mm locking wrappers
Date
From: Davidlohr Bueso <dave@stgolabs.net>

This becomes quite straightforward with the mmrange in place.

Signed-off-by: Davidlohr Bueso <dbueso@suse.de>
---
arch/cris/mm/fault.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/arch/cris/mm/fault.c b/arch/cris/mm/fault.c
index 16af16d77269..decc8f1fbc9d 100644
--- a/arch/cris/mm/fault.c
+++ b/arch/cris/mm/fault.c
@@ -122,7 +122,7 @@ do_page_fault(unsigned long address, struct pt_regs *regs,
if (user_mode(regs))
flags |= FAULT_FLAG_USER;
retry:
- down_read(&mm->mmap_sem);
+ mm_read_lock(mm, &mmrange);
vma = find_vma(mm, address);
if (!vma)
goto bad_area;
@@ -205,7 +205,7 @@ do_page_fault(unsigned long address, struct pt_regs *regs,
}
}

- up_read(&mm->mmap_sem);
+ mm_read_unlock(mm, &mmrange);
return;

/*
@@ -214,7 +214,7 @@ do_page_fault(unsigned long address, struct pt_regs *regs,
*/

bad_area:
- up_read(&mm->mmap_sem);
+ mm_read_unlock(mm, &mmrange);

bad_area_nosemaphore:
DPG(show_registers(regs));
@@ -286,14 +286,14 @@ do_page_fault(unsigned long address, struct pt_regs *regs,
*/

out_of_memory:
- up_read(&mm->mmap_sem);
+ mm_read_unlock(mm, &mmrange);
if (!user_mode(regs))
goto no_context;
pagefault_out_of_memory();
return;

do_sigbus:
- up_read(&mm->mmap_sem);
+ mm_read_unlock(mm, &mmrange);

/*
* Send a sigbus, regardless of whether we were in kernel
--
2.13.6
\
 
 \ /
  Last update: 2018-02-05 02:35    [W:0.449 / U:0.236 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site