Messages in this thread Patch in this message |  | | | Date | Tue, 15 Jan 2008 20:36:39 +0800 | | From | Fengguang Wu <> | | Subject | [PATCH 02/13] writeback: clear PAGECACHE_TAG_DIRTY for truncated page in block_write_full_page() | |
The `truncated' page in block_write_full_page() may stick for a long time.
E.g. ext2_rmdir() will set i_size to 0, and then the dir inode may hang around
because of being referenced by someone.
So clear PAGECACHE_TAG_DIRTY to prevent pdflush from retrying and iowaiting on
it.
Tested-by: Joerg Platte <jplatte@naasa.net>
Signed-off-by: Fengguang Wu <wfg@mail.ustc.edu.cn>
---
fs/buffer.c | 2 ++
1 files changed, 2 insertions(+)
Index: linux/fs/buffer.c
===================================================================
--- linux.orig/fs/buffer.c
+++ linux/fs/buffer.c
@@ -2820,7 +2820,9 @@ int block_write_full_page(struct page *p
* freeable here, so the page does not leak.
*/
do_invalidatepage(page, 0);
+ set_page_writeback(page);
unlock_page(page);
+ end_page_writeback(page);
return 0; /* don't care */
}
--
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