diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2011-03-17 10:32:28 (GMT) |
|---|---|---|
| committer | Scott Wood <scottwood@freescale.com> | 2015-02-13 22:20:11 (GMT) |
| commit | 9a58969cf8c3f2a5cf3b0cf04144ca2573758d42 (patch) | |
| tree | 314bd86e26d7f8c164b1cf70d794c3c8b0df61d6 /arch/sparc | |
| parent | 8f5ce951e9a668c3b1c749fc6fee9e8b5dd4654b (diff) | |
| download | linux-fsl-qoriq-9a58969cf8c3f2a5cf3b0cf04144ca2573758d42.tar.xz | |
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/sparc')
| -rw-r--r-- | arch/sparc/mm/fault_32.c | 2 | ||||
| -rw-r--r-- | arch/sparc/mm/fault_64.c | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/arch/sparc/mm/fault_32.c b/arch/sparc/mm/fault_32.c index 59dbd46..7d51c05 100644 --- a/arch/sparc/mm/fault_32.c +++ b/arch/sparc/mm/fault_32.c @@ -199,7 +199,7 @@ asmlinkage void do_sparc_fault(struct pt_regs *regs, int text_fault, int write, * If we're in an interrupt or have no user * context, we must not take the fault.. */ - if (in_atomic() || !mm) + if (in_atomic() || !mm || current->pagefault_disabled) goto no_context; perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS, 1, regs, address); diff --git a/arch/sparc/mm/fault_64.c b/arch/sparc/mm/fault_64.c index 603e462..c83c76d 100644 --- a/arch/sparc/mm/fault_64.c +++ b/arch/sparc/mm/fault_64.c @@ -330,7 +330,7 @@ asmlinkage void __kprobes do_sparc64_fault(struct pt_regs *regs) * If we're in an interrupt or have no user * context, we must not take the fault.. */ - if (in_atomic() || !mm) + if (in_atomic() || !mm || current->pagefault_enabled) goto intr_or_no_mm; perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS, 1, regs, address); |