diff options
| author | Zhang Yanfei <zhangyanfei@cn.fujitsu.com> | 2013-02-22 16:35:43 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-02-23 17:50:21 -0800 |
| commit | ebec3862fd6eefe8301aa55ed2e30c685d831842 (patch) | |
| tree | dda7828d852e384a382b277be0ec80b21ff38c72 /include/linux/swap.h | |
| parent | 1081312f95be1a0fc093556d789e482d3ab0f5b0 (diff) | |
mm: fix return type for functions nr_free_*_pages
Currently, the amount of RAM that functions nr_free_*_pages return is
held in unsigned int. But in machines with big memory (exceeding 16TB),
the amount may be incorrect because of overflow, so fix it.
Signed-off-by: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Cc: Simon Horman <horms@verge.net.au>
Cc: Julian Anastasov <ja@ssi.bg>
Cc: David Miller <davem@davemloft.net>
Cc: Eric Van Hensbergen <ericvh@gmail.com>
Cc: Ron Minnich <rminnich@sandia.gov>
Cc: Latchesar Ionkov <lucho@ionkov.net>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Minchan Kim <minchan.kim@gmail.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/swap.h')
| -rw-r--r-- | include/linux/swap.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/swap.h b/include/linux/swap.h index a3e22d357e91..8a15f38ebc5c 100644 --- a/include/linux/swap.h +++ b/include/linux/swap.h @@ -225,8 +225,8 @@ struct swap_list_t { extern unsigned long totalram_pages; extern unsigned long totalreserve_pages; extern unsigned long dirty_balance_reserve; -extern unsigned int nr_free_buffer_pages(void); -extern unsigned int nr_free_pagecache_pages(void); +extern unsigned long nr_free_buffer_pages(void); +extern unsigned long nr_free_pagecache_pages(void); /* Definition of global_page_state not available yet */ #define nr_free_pages() global_page_state(NR_FREE_PAGES) |