diff options
| author | Christophe Leroy <christophe.leroy@csgroup.eu> | 2020-12-09 05:29:25 +0000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2020-12-09 23:48:14 +1100 |
| commit | 5f1888a077069988218805534f56b983b6d5710c (patch) | |
| tree | 71256d5dd482c324023c1df2f469a358389dc12e /arch/powerpc/include/asm/bug.h | |
| parent | cbd7e6ca0210db05c315a27bb5db5a482f2772ce (diff) | |
powerpc/fault: Perform exception fixup in do_page_fault()
Exception fixup doesn't require the heady full regs saving,
do it from do_page_fault() directly.
For that, split bad_page_fault() in two parts.
As bad_page_fault() can also be called from other places than
handle_page_fault(), it will still perform exception fixup and
fallback on __bad_page_fault().
handle_page_fault() directly calls __bad_page_fault() as the
exception fixup will now be done by do_page_fault()
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/bd07d6fef9237614cd6d318d8f19faeeadaa816b.1607491748.git.christophe.leroy@csgroup.eu
Diffstat (limited to 'arch/powerpc/include/asm/bug.h')
| -rw-r--r-- | arch/powerpc/include/asm/bug.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/bug.h b/arch/powerpc/include/asm/bug.h index ba0500872cce..464f8ca8a5c9 100644 --- a/arch/powerpc/include/asm/bug.h +++ b/arch/powerpc/include/asm/bug.h @@ -113,6 +113,7 @@ struct pt_regs; extern int do_page_fault(struct pt_regs *, unsigned long, unsigned long); extern void bad_page_fault(struct pt_regs *, unsigned long, int); +void __bad_page_fault(struct pt_regs *regs, unsigned long address, int sig); extern void _exception(int, struct pt_regs *, int, unsigned long); extern void _exception_pkey(struct pt_regs *, unsigned long, int); extern void die(const char *, struct pt_regs *, long); |