From: Andrew Morton <[email protected]>
nfs's ->readpages uses read_cache_pages(). Wire it up there.
[[email protected]: account only successful nfs/fuse reads]
Cc: Jay Lan <[email protected]>
Cc: Shailabh Nagar <[email protected]>
Cc: Balbir Singh <[email protected]>
Cc: Chris Sturtivant <[email protected]>
Cc: Tony Ernst <[email protected]>
Cc: Guillaume Thouvenin <[email protected]>
Cc: David Wright <[email protected]>
Signed-off-by: Fengguang Wu <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
---
mm/readahead.c | 2 ++
1 file changed, 2 insertions(+)
diff -puN mm/readahead.c~io-accounting-read-accounting-nfs-fix mm/readahead.c
--- a/mm/readahead.c~io-accounting-read-accounting-nfs-fix
+++ a/mm/readahead.c
@@ -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_spac
put_pages_list(pages);
break;
}
+ task_io_account_read(PAGE_CACHE_SIZE);
}
pagevec_lru_add(&lru_pvec);
return ret;
_
-
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