>
> do not quite agree with each other. The page writeback should be skipped for
> 'locked buffer', but here it is 'clean buffer'!
Ok, so that means we need an equivalent fix in xfs_start_page_writeback()
as it will skip pages with clean buffers just like this. Something like
this (untested)?
---
fs/xfs/linux-2.6/xfs_aops.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
Index: 2.6.x-xfs-new/fs/xfs/linux-2.6/xfs_aops.c
===================================================================
--- 2.6.x-xfs-new.orig/fs/xfs/linux-2.6/xfs_aops.c 2007-10-02 16:12:56.000000000 +1000
+++ 2.6.x-xfs-new/fs/xfs/linux-2.6/xfs_aops.c 2007-10-03 07:53:27.866602431 +1000
@@ -420,10 +420,9 @@ xfs_start_page_writeback(
clear_page_dirty_for_io(page);
set_page_writeback(page);
unlock_page(page);
- if (!buffers) {
+ /* If no buffers on the page are to be written, finish it here */
+ if (!buffers)
end_page_writeback(page);
- wbc->pages_skipped++; /* We didn't write this page */
- }
}
static inline int bio_add_buffer(struct bio *bio, struct buffer_head *bh)
--
Dave Chinner
Principal Engineer
SGI Australian Software Group
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