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authorAndrew Morton <akpm@osdl.org>2006-12-10 02:19:31 -0800
committerLinus Torvalds <torvalds@woody.osdl.org>2006-12-10 09:55:41 -0800
commite08748ce01e02f0ec154b141f392ccb9555333f4 (patch)
tree9fa9d9f8fb468997f7f6fbcb28e243724d1fdda6 /mm/truncate.c
parent55e829af06681e5d731c03ba04febbd1c76ca293 (diff)
downloadvexpress-lsk-e08748ce01e02f0ec154b141f392ccb9555333f4.tar.gz
[PATCH] io-accounting: write-cancel accounting
Account for the number of byte writes which this process caused to not happen after all. 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: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'mm/truncate.c')
-rw-r--r--mm/truncate.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/mm/truncate.c b/mm/truncate.c
index e07b1e682c3..9bfb8e85386 100644
--- a/mm/truncate.c
+++ b/mm/truncate.c
@@ -13,6 +13,7 @@
#include <linux/module.h>
#include <linux/pagemap.h>
#include <linux/pagevec.h>
+#include <linux/task_io_accounting_ops.h>
#include <linux/buffer_head.h> /* grr. try_to_release_page,
do_invalidatepage */
@@ -69,7 +70,8 @@ truncate_complete_page(struct address_space *mapping, struct page *page)
if (PagePrivate(page))
do_invalidatepage(page, 0);
- clear_page_dirty(page);
+ if (test_clear_page_dirty(page))
+ task_io_account_cancelled_write(PAGE_CACHE_SIZE);
ClearPageUptodate(page);
ClearPageMappedToDisk(page);
remove_from_page_cache(page);