diff options
| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2017-07-19 14:49:23 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2017-08-02 13:11:07 +1000 |
| commit | 7afad422ac61067473d5f3d20bbd5472af533bcd (patch) | |
| tree | d7bb22570129b6fd8fc7193a64656d7d0899be90 /arch/powerpc/mm/fault.c | |
| parent | 424de9c6e3f89399fc11afc1f53f89c5329132da (diff) | |
| download | op-kernel-dev-7afad422ac61067473d5f3d20bbd5472af533bcd.zip op-kernel-dev-7afad422ac61067473d5f3d20bbd5472af533bcd.tar.gz | |
powerpc/mm: Move exception_enter/exit to a do_page_fault wrapper
This will allow simplifying the returns from do_page_fault
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/mm/fault.c')
| -rw-r--r-- | arch/powerpc/mm/fault.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/arch/powerpc/mm/fault.c b/arch/powerpc/mm/fault.c index 4c42263..faddc87 100644 --- a/arch/powerpc/mm/fault.c +++ b/arch/powerpc/mm/fault.c @@ -195,10 +195,9 @@ static int mm_fault_error(struct pt_regs *regs, unsigned long addr, int fault) * The return value is 0 if the fault was handled, or the signal * number if this is a kernel fault that can't be handled here. */ -int do_page_fault(struct pt_regs *regs, unsigned long address, - unsigned long error_code) +static int __do_page_fault(struct pt_regs *regs, unsigned long address, + unsigned long error_code) { - enum ctx_state prev_state = exception_enter(); struct vm_area_struct * vma; struct mm_struct *mm = current->mm; unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE; @@ -523,6 +522,15 @@ bad_area_nosemaphore: rc = SIGSEGV; bail: + return rc; +} +NOKPROBE_SYMBOL(__do_page_fault); + +int do_page_fault(struct pt_regs *regs, unsigned long address, + unsigned long error_code) +{ + enum ctx_state prev_state = exception_enter(); + int rc = __do_page_fault(regs, address, error_code); exception_exit(prev_state); return rc; } |
