diff options
Diffstat (limited to 'include/asm-generic')
| -rw-r--r-- | include/asm-generic/tlb.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/asm-generic/tlb.h b/include/asm-generic/tlb.h index 6be86c1c5c58..075b353cae86 100644 --- a/include/asm-generic/tlb.h +++ b/include/asm-generic/tlb.h @@ -20,6 +20,15 @@ #include <asm/pgalloc.h> #include <asm/tlbflush.h> +/* + * Blindly accessing user memory from NMI context can be dangerous + * if we're in the middle of switching the current user task or switching + * the loaded mm. + */ +#ifndef nmi_uaccess_okay +# define nmi_uaccess_okay() true +#endif + #ifdef CONFIG_MMU #ifdef CONFIG_HAVE_RCU_TABLE_FREE |