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readahead: compacting file_ra_state

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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 <[email protected]>
Signed-off-by: Fengguang Wu <[email protected]>
Cc: Rusty Russell <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Fengguang Wu 2007-10-16 01:24:31 -07:00 • committed by Linus Torvalds
commit 937085aa35
2 changed files with 5 additions and 5 deletions
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2
mm/readahead.c
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@ -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;