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[PATCH] call mm/page-writeback.c:set_ratelimit() when new pages are hot-added

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ratelimit_pages in page-writeback.c is recalculated (in set_ratelimit())
every time a CPU is hot-added/removed.  But this value is not recalculated
when new pages are hot-added.

This patch fixes that problem by calling set_ratelimit() when new pages
are hot-added.

[akpm@osdl.org: cleanups]
Signed-off-by: Chandra Seetharaman <sekharan@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Chandra Seetharaman 2006-09-29 02:01:25 -07:00 • committed by Linus Torvalds
parent 40c99aae23
commit 2d1d43f6a4
3 changed files with 6 additions and 3 deletions
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1
include/linux/writeback.h
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@ -117,6 +117,7 @@ int sync_page_range(struct inode *inode, struct address_space *mapping,
int sync_page_range_nolock(struct inode *inode, struct address_space *mapping,
loff_t pos, loff_t count);
void set_page_dirty_balance(struct page *page);
void writeback_set_ratelimit(void);
/* pdflush.c */
extern int nr_pdflush_threads; /* Global so it can be exported to sysctl