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[PATCH] io-accounting-read-accounting nfs fix 

nfs's ->readpages uses read_cache_pages().  Wire it up there.

[wfg@mail.ustc.edu.cn: account only successful nfs/fuse reads]
Cc: Jay Lan <jlan@sgi.com>
Cc: Shailabh Nagar <nagar@watson.ibm.com>
Cc: Balbir Singh <balbir@in.ibm.com>
Cc: Chris Sturtivant <csturtiv@sgi.com>
Cc: Tony Ernst <tee@sgi.com>
Cc: Guillaume Thouvenin <guillaume.thouvenin@bull.net>
Cc: David Wright <daw@sgi.com>
Signed-off-by: Fengguang Wu <wfg@mail.ustc.edu.cn>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Andrew Morton 2006-12-10 02:19:40 -08:00 committed by Linus Torvalds
parent faccbd4b26
commit 8bde37f08f
1 changed files with 2 additions and 0 deletions
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2
mm/readahead.c
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@ -13,6 +13,7 @@
#include <linux/module.h>
#include <linux/blkdev.h>
#include <linux/backing-dev.h>
#include <linux/task_io_accounting_ops.h>
#include <linux/pagevec.h>
void default_unplug_io_fn(struct backing_dev_info *bdi, struct page *page)
@ -151,6 +152,7 @@ int read_cache_pages(struct address_space *mapping, struct list_head *pages,
put_pages_list(pages);
break;
}
task_io_account_read(PAGE_CACHE_SIZE);
}
pagevec_lru_add(&lru_pvec);
return ret;