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authorFengguang Wu <wfg@mail.ustc.edu.cn>2007-10-16 01:24:31 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-16 09:42:52 -0700
commit937085aa35cc873d427d250a1e304d641af24628 (patch)
tree99b0d2d9e6721a72e65b4cb5ad0fc30ec04f4aa2 /mm/readahead.c
parent43fac94dd62667c83dd2daa5b7ac548512af780a (diff)
downloadop-kernel-dev-937085aa35cc873d427d250a1e304d641af24628.zip
op-kernel-dev-937085aa35cc873d427d250a1e304d641af24628.tar.gz
readahead: compacting file_ra_state
Use 'unsigned int' instead of 'unsigned long' for readahead sizes. This helps reduce memory consumption on 64bit CPU when a lot of files are opened. CC: Andi Kleen <andi@firstfloor.org> Signed-off-by: Fengguang Wu <wfg@mail.ustc.edu.cn> Cc: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/readahead.c')
-rw-r--r--mm/readahead.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/readahead.c b/mm/readahead.c
index be20c9d..d250487 100644
--- a/mm/readahead.c
+++ b/mm/readahead.c
@@ -351,7 +351,7 @@ ondemand_readahead(struct address_space *mapping,
bool hit_readahead_marker, pgoff_t offset,
unsigned long req_size)
{
- unsigned long max; /* max readahead pages */
+ int max; /* max readahead pages */
int sequential;
max = ra->ra_pages;
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