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authorThomas Gleixner <tglx@linutronix.de>2011-03-17 11:32:28 +0100
committerClark Williams <williams@redhat.com>2012-02-15 10:32:32 -0600
commit56c75aaf313a884eb2cbe51958dc3b24198a57a2 (patch)
tree4b1d7ef7a96da4d2d95bad76cad188f4a530845b /arch/x86/mm
parent95d59d56816ad3e5df37ea57826ba83ffa5f0c06 (diff)
mm: Fixup all fault handlers to check current->pagefault_disable
Necessary for decoupling pagefault disable from preempt count. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/mm')
-rw-r--r--arch/x86/mm/fault.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
index 5db0490deb07..191015fd836b 100644
--- a/arch/x86/mm/fault.c
+++ b/arch/x86/mm/fault.c
@@ -1084,7 +1084,7 @@ do_page_fault(struct pt_regs *regs, unsigned long error_code)
* If we're in an interrupt, have no user context or are running
* in an atomic region then we must not take the fault:
*/
- if (unlikely(in_atomic() || !mm)) {
+ if (unlikely(in_atomic() || !mm || current->pagefault_disabled)) {
bad_area_nosemaphore(regs, error_code, address);
return;
}