redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

MN10300: Change the fault handler to check in_atomic() not in_interrupt() 

Change the MN10300 fault handler to make it check in_atomic() rather than
in_interrupt() as commit 6edaf68a87 did for other
architectures:

	Author: Peter Zijlstra <a.p.zijlstra@chello.nl>
	Date:   Wed Dec 6 20:32:18 2006 -0800

	[PATCH] mm: arch do_page_fault() vs in_atomic()

	In light of the recent pagefault and filemap_copy_from_user work I've
	gone through all the arch pagefault handlers to make sure the
	inc_preempt_count() 'feature' works as expected.

	Several sections of code (including the new filemap_copy_from_user)
	rely on the fact that faults do not take locks under increased preempt
	count.

Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
hifive-unleashed-5.1
David Howells 2008-09-11 17:18:56 +01:00 committed by Linus Torvalds
parent 6d242a2636
commit d1c6d2e547
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/mn10300/mm/fault.c
View File

@ -174,7 +174,7 @@ asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long fault_code,
* If we're in an interrupt or have no user
* context, we must not take the fault..
*/
if (in_interrupt() || !mm)
if (in_atomic() || !mm)
goto no_context;
down_read(&mm->mmap_sem);