diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/uaccess.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/linux/uaccess.h b/include/linux/uaccess.h index 56328601218c..c6bd20065a5d 100644 --- a/include/linux/uaccess.h +++ b/include/linux/uaccess.h @@ -649,6 +649,17 @@ static inline void user_access_restore(unsigned long flags) { } #define user_read_access_end user_access_end #endif +#ifndef unsafe_atomic_store_release_user +# define unsafe_atomic_store_release_user(val, uptr, elbl) \ + do { \ + if (!IS_ENABLED(CONFIG_ARCH_MEMORY_ORDER_TSO)) \ + smp_mb(); \ + else \ + barrier(); \ + unsafe_put_user(val, uptr, elbl); \ + } while (0) +#endif + /* Define RW variant so the below _mode macro expansion works */ #define masked_user_rw_access_begin(u) masked_user_access_begin(u) #define user_rw_access_begin(u, s) user_access_begin(u, s) |