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| author | Nicholas Piggin <npiggin@gmail.com> | 2021-01-30 23:08:33 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2021-02-09 00:02:11 +1100 |
| commit | 209e9d500e25eada096b2c09a34093bc458166f3 (patch) | |
| tree | f2f9b5484471d2f641c25ea289ca4e398a02657f /arch/powerpc/include | |
| parent | dcdb4f12963f3f4200e24e1dad78564a98736f67 (diff) | |
| download | linux-209e9d500e25eada096b2c09a34093bc458166f3.tar.bz2 | |
powerpc: introduce die_mce
As explained by commit daf00ae71dad ("powerpc/traps: restore
recoverability of machine_check interrupts"), die() can't be called from
within nmi_enter to nicely kill a process context that was interrupted.
nmi_exit must be called first.
This adds a function die_mce which takes care of this for machine check
handlers.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210130130852.2952424-24-npiggin@gmail.com
Diffstat (limited to 'arch/powerpc/include')
| -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 8f09ddae9305..c10ae0a9bbaf 100644 --- a/arch/powerpc/include/asm/bug.h +++ b/arch/powerpc/include/asm/bug.h @@ -118,6 +118,7 @@ void do_bad_page_fault_segv(struct pt_regs *regs); 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); +void die_mce(const char *str, struct pt_regs *regs, long err); extern bool die_will_crash(void); extern void panic_flush_kmsg_start(void); extern void panic_flush_kmsg_end(void); |