diff options
| author | Jiang Liu <liuj97@gmail.com> | 2013-07-04 02:04:23 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-07-04 03:07:38 +0400 |
| commit | fccc998771043db1613509b26c18b3d7f071e668 (patch) | |
| tree | c917d6508d4194a4a50796ccb36614e3fe56da7e /include/linux | |
| parent | 1895418189e08c1d1eec4fbdb5fb41d793f57ba5 (diff) | |
| download | linux-fccc998771043db1613509b26c18b3d7f071e668.tar.xz | |
mm: introduce helper function set_max_mapnr()
Introduce a helper function set_max_mapnr() to set global variable
max_mapnr.
Also unify condition compilation for max_mapnr with
CONFIG_NEED_MULTIPLE_NODES instead of CONFIG_DISCONTIGMEM.
Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Mauro Carvalho Chehab <mchehab@redhat.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/mm.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h index e550a1773a9e..b87681adf0ba 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -25,8 +25,15 @@ struct file_ra_state; struct user_struct; struct writeback_control; -#ifndef CONFIG_DISCONTIGMEM /* Don't use mapnrs, do it properly */ +#ifndef CONFIG_NEED_MULTIPLE_NODES /* Don't use mapnrs, do it properly */ extern unsigned long max_mapnr; + +static inline void set_max_mapnr(unsigned long limit) +{ + max_mapnr = limit; +} +#else +static inline void set_max_mapnr(unsigned long limit) { } #endif extern unsigned long totalram_pages; |