lkml.org 
[lkml]   [2019]   [Sep]   [26]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v5 07/16] powerpc/mm: Use helper fault_signal_pending()
Date
Let powerpc code to use the new helper, by moving the signal handling
earlier before the retry logic.

Signed-off-by: Peter Xu <peterx@redhat.com>
---
arch/powerpc/mm/fault.c | 12 ++++--------
1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/arch/powerpc/mm/fault.c b/arch/powerpc/mm/fault.c
index 8432c281de92..7dabd1243f1b 100644
--- a/arch/powerpc/mm/fault.c
+++ b/arch/powerpc/mm/fault.c
@@ -583,6 +583,9 @@ static int __do_page_fault(struct pt_regs *regs, unsigned long address,

major |= fault & VM_FAULT_MAJOR;

+ if (fault_signal_pending(fault, regs))
+ return user_mode(regs) ? 0 : SIGBUS;
+
/*
* Handle the retry right now, the mmap_sem has been released in that
* case.
@@ -596,15 +599,8 @@ static int __do_page_fault(struct pt_regs *regs, unsigned long address,
*/
flags &= ~FAULT_FLAG_ALLOW_RETRY;
flags |= FAULT_FLAG_TRIED;
- if (!fatal_signal_pending(current))
- goto retry;
+ goto retry;
}
-
- /*
- * User mode? Just return to handle the fatal exception otherwise
- * return to bad_page_fault
- */
- return is_user ? 0 : SIGBUS;
}

up_read(&current->mm->mmap_sem);
--
2.21.0
\
 
 \ /
  Last update: 2019-09-26 11:40    [W:0.076 / U:8.144 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site