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| author | Chris Metcalf <cmetcalf@mellanox.com> | 2016-11-07 14:32:02 -0500 |
|---|---|---|
| committer | Chris Metcalf <cmetcalf@mellanox.com> | 2016-11-14 16:46:41 -0500 |
| commit | e123386bc31bbf467dc558f2f919de0b8b4ba58c (patch) | |
| tree | 547970f8b4d4738328445bacc2431753b3faf6e0 /arch/tile | |
| parent | bc33b0ca11e3df467777a4fa7639ba488c9d4911 (diff) | |
| download | linux-e123386bc31bbf467dc558f2f919de0b8b4ba58c.tar.gz linux-e123386bc31bbf467dc558f2f919de0b8b4ba58c.tar.bz2 linux-e123386bc31bbf467dc558f2f919de0b8b4ba58c.zip | |
tile: handle __ro_after_init like parisc does
The tile architecture already marks RO_DATA as read-only in
the kernel, so grouping RO_AFTER_INIT_DATA with RO_DATA, as is
done by default, means the kernel faults in init when it tries
to write to RO_AFTER_INIT_DATA. For now, just arrange that
__ro_after_init is handled like __write_once, i.e. __read_mostly.
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Chris Metcalf <cmetcalf@mellanox.com>
Diffstat (limited to 'arch/tile')
| -rw-r--r-- | arch/tile/include/asm/cache.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/tile/include/asm/cache.h b/arch/tile/include/asm/cache.h index 6160761d5f61..4810e48dbbbf 100644 --- a/arch/tile/include/asm/cache.h +++ b/arch/tile/include/asm/cache.h @@ -61,4 +61,7 @@ */ #define __write_once __read_mostly +/* __ro_after_init is the generic name for the tile arch __write_once. */ +#define __ro_after_init __read_mostly + #endif /* _ASM_TILE_CACHE_H */ |