[PATCH] revert ext3-writepages-support-for-writeback-mode
This had a fatal lock ranking bug: we do journal_start outside
mpage_writepages()'s lock_page().
Revert the whole thing, think again.
Credit-to: Jan Kara <jack@suse.cz>
For identifying the bug.
Cc: Badari Pulavarty <pbadari@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/fs/mpage.c b/fs/mpage.c
index 32c7c8f..68db525 100644
--- a/fs/mpage.c
+++ b/fs/mpage.c
@@ -627,15 +627,6 @@
mpage_writepages(struct address_space *mapping,
struct writeback_control *wbc, get_block_t get_block)
{
- return __mpage_writepages(mapping, wbc, get_block,
- mapping->a_ops->writepage);
-}
-
-int
-__mpage_writepages(struct address_space *mapping,
- struct writeback_control *wbc, get_block_t get_block,
- writepage_t writepage_fn)
-{
struct backing_dev_info *bdi = mapping->backing_dev_info;
struct bio *bio = NULL;
sector_t last_block_in_bio = 0;
@@ -725,7 +716,7 @@
} else {
bio = __mpage_writepage(bio, page, get_block,
&last_block_in_bio, &ret, wbc,
- writepage_fn);
+ page->mapping->a_ops->writepage);
}
if (unlikely(ret == WRITEPAGE_ACTIVATE))
unlock_page(page);
@@ -755,7 +746,6 @@
return ret;
}
EXPORT_SYMBOL(mpage_writepages);
-EXPORT_SYMBOL(__mpage_writepages);
int mpage_writepage(struct page *page, get_block_t get_block,
struct writeback_control *wbc)