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List:       linux-parisc
Subject:    [PATCH] parisc: additionally check for in_atomic() in page fault handler
From:       Helge Deller <deller () gmx ! de>
Date:       2015-09-02 16:18:48
Message-ID: 20150902161848.GB2444 () ls3530 ! box
[Download RAW message or body]

Craig Estey noticed that we didn't checked for in_atomic() in our page fault
handler like other architectures. This commit adds this check by using
faulthandler_disabled() which includes a check for pagefault_disabled() and
in_atomic().

Reported-by: Craig Estey <cae370@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
index 15503ad..ac6f174 100644
--- a/arch/parisc/mm/fault.c
+++ b/arch/parisc/mm/fault.c
@@ -207,7 +207,7 @@ void do_page_fault(struct pt_regs *regs, unsigned long code,
 	int fault;
 	unsigned int flags;
 
-	if (pagefault_disabled())
+	if (faulthandler_disabled())
 		goto no_context;
 
 	tsk = current;
--
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