The patch titled
Subject: JFS: do not ignore return code from write_one_page()
has been added to the -mm tree. Its filename is
mm-drop-wait-parameter-from-write_one_page-fix.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-drop-wait-parameter-from-write_one_page-fix.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-drop-wait-parameter-from-write_one_page-fix.patch
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From: Dave Kleikamp <dave.kleikamp@xxxxxxxxxx>
Subject: JFS: do not ignore return code from write_one_page()
There are a couple places where jfs calls write_one_page() where clean
recovery is not possible. In these cases, the file system should be
marked dirty. To do this, it is now necessary to store the superblock in
the metapage structure.
Link: http://lkml.kernel.org/r/db45ab67-55c7-08ff-6776-f76b3bf5cbf5@xxxxxxxxxx
Signed-off-by: Dave Kleikamp <dave.kleikamp@xxxxxxxxxx>
Cc: Jeff Layton <jlayton@xxxxxxxxxx>
Cc: Ross Zwisler <ross.zwisler@xxxxxxxxxxxxxxx>
Cc: Jan Kara <jack@xxxxxxx>
Cc: Matthew Wilcox <mawilcox@xxxxxxxxxxxxx>
Cc: Christoph Hellwig <hch@xxxxxx>
Cc: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/jfs/jfs_metapage.c | 7 +++++--
fs/jfs/jfs_metapage.h | 1 +
2 files changed, 6 insertions(+), 2 deletions(-)
diff -puN fs/jfs/jfs_metapage.c~mm-drop-wait-parameter-from-write_one_page-fix fs/jfs/jfs_metapage.c
--- a/fs/jfs/jfs_metapage.c~mm-drop-wait-parameter-from-write_one_page-fix
+++ a/fs/jfs/jfs_metapage.c
@@ -664,6 +664,7 @@ struct metapage *__get_metapage(struct i
INCREMENT(mpStat.pagealloc);
mp = alloc_metapage(GFP_NOFS);
mp->page = page;
+ mp->sb = inode->i_sb;
mp->flag = 0;
mp->xflag = COMMIT_PAGE;
mp->count = 1;
@@ -711,7 +712,8 @@ void force_metapage(struct metapage *mp)
get_page(page);
lock_page(page);
set_page_dirty(page);
- write_one_page(page);
+ if (write_one_page(page))
+ jfs_error(mp->sb, "write_one_page() failed\n");
clear_bit(META_forcewrite, &mp->flag);
put_page(page);
}
@@ -756,7 +758,8 @@ void release_metapage(struct metapage *
set_page_dirty(page);
if (test_bit(META_sync, &mp->flag)) {
clear_bit(META_sync, &mp->flag);
- write_one_page(page);
+ if (write_one_page(page))
+ jfs_error(mp->sb, "write_one_page() failed\n");
lock_page(page); /* write_one_page unlocks the page */
}
} else if (mp->lsn) /* discard_metapage doesn't remove it */
diff -puN fs/jfs/jfs_metapage.h~mm-drop-wait-parameter-from-write_one_page-fix fs/jfs/jfs_metapage.h
--- a/fs/jfs/jfs_metapage.h~mm-drop-wait-parameter-from-write_one_page-fix
+++ a/fs/jfs/jfs_metapage.h
@@ -38,6 +38,7 @@ struct metapage {
/* implementation */
struct page *page;
+ struct super_block *sb;
unsigned int logical_size;
/* Journal management */
_
Patches currently in -mm which might be from dave.kleikamp@xxxxxxxxxx are
mm-drop-wait-parameter-from-write_one_page-fix.patch
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