Messages in this thread Patch in this message | | | From | Jiang Liu <> | Subject | [PATCH, v2 01/13] mm: introduce helper function set_max_mapnr() | Date | Wed, 29 May 2013 22:44:40 +0800 |
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Introduce an 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> Cc: linux-mm@kvack.org Cc: linux-kernel@vger.kernel.org --- include/linux/mm.h | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/include/linux/mm.h b/include/linux/mm.h index 7e39aa1..bde812e 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; -- 1.8.1.2
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