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authorLinus Torvalds <torvalds@linux-foundation.org>2008-07-28 08:41:13 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-07-28 08:41:13 -0700
commitb10a8b7238d7b034f28d32a85bb05c48475f132a (patch)
tree8e70e816757c2a517de6fb721dd9ac2276619c26 /arch/sh/mm/fault_32.c
parent37eaf8c7463e53cf1acf025fb566fb6c4573297f (diff)
parent8b2224dc6a5b46cfa1d54ab1fe82107351c66443 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (72 commits) sh: SuperH Mobile CEU and camera platform data for AP325RXA sh: Update smc911x platform data for AP325RXA sh: SuperH Mobile LCDC platform data for AP325RXA sh: Add SuperH Mobile CEU platform data for Migo-R sh: Add SuperH Mobile LCDC platform data for Migo-R sh: Move asid_cache() out of ifdef to fix SH-3/4 nommu build. sh: Workaround for __put_user_asm() bug with gcc 4.x on big-endian. sh: Wire up new syscalls. sh: fix uImage Entry Point sh_keysc: remove request_mem_region() and release_mem_region() sh: Don't miss pending signals returning to user mode after signal processing sh: Use clk_always_enable() on sh7366 sh: Use clk_always_enable() on sh7343 / SE77343 sh: Use clk_always_enable() on sh7722 / Migo-R / SE7722 sh: Use clk_always_enable() on sh7723 / ap325rxa sh: Introduce clk_always_enable() function sh: Show all clocks and their state in /proc/clocks sh: Merge sh7343 and sh7722 clock code sh: Add SuperH Mobile MSTPCR bits to clock framework sh: Use arch_flags to simplify sh7722 siu clock code ...
Diffstat (limited to 'arch/sh/mm/fault_32.c')
-rw-r--r--arch/sh/mm/fault_32.c12
1 files changed, 8 insertions, 4 deletions
diff --git a/arch/sh/mm/fault_32.c b/arch/sh/mm/fault_32.c
index d1fa27594c6e..0c776fdfbdda 100644
--- a/arch/sh/mm/fault_32.c
+++ b/arch/sh/mm/fault_32.c
@@ -37,16 +37,12 @@ asmlinkage void __kprobes do_page_fault(struct pt_regs *regs,
int fault;
siginfo_t info;
- trace_hardirqs_on();
- local_irq_enable();
-
#ifdef CONFIG_SH_KGDB
if (kgdb_nofault && kgdb_bus_err_hook)
kgdb_bus_err_hook();
#endif
tsk = current;
- mm = tsk->mm;
si_code = SEGV_MAPERR;
if (unlikely(address >= TASK_SIZE)) {
@@ -88,6 +84,14 @@ asmlinkage void __kprobes do_page_fault(struct pt_regs *regs,
return;
}
+ /* Only enable interrupts if they were on before the fault */
+ if ((regs->sr & SR_IMASK) != SR_IMASK) {
+ trace_hardirqs_on();
+ local_irq_enable();
+ }
+
+ mm = tsk->mm;
+
/*
* If we're in an interrupt or have no user
* context, we must not take the fault..