diff options
author | Qu Fuping <qufuping@ercist.iscas.ac.cn> | 2005-07-15 11:36:08 -0400 |
---|---|---|
committer | Dave Kleikamp <shaggy@austin.ibm.com> | 2005-07-15 11:36:08 -0400 |
commit | 3d9b1cdd2455017c6aa25bc2442092b81438981f (patch) | |
tree | 0f0bf8deaeabc2d14fbded203392ec5bf7dc37ad | |
parent | 56d1254917d9f301a8e24155cd3f2236e642cb7d (diff) |
JFS: fsync wrong behavior when I/O failure occurs
This is half of a patch that Qu Fuping submitted in April. The first part
was applied to fs/mpage.c in 2.6.12-rc4.
jfs_fsync should return error, but it doesn't wait for the metadata page to
be uptodate, e.g.:
jfs_fsync->jfs_commit_inode->txCommit->diWrite->read_metapage->
__get_metapage->read_cache_page reads a page from disk. Because read is
async, when read_cache_page: err = filler(data, page), filler will not
return error, it just submits I/O request and returns. So, page is not
uptodate. Checking only if(IS_ERROR(mp->page)) is not enough, we should
add "|| !PageUptodate(mp->page)"
Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
-rw-r--r-- | fs/jfs/jfs_metapage.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/jfs/jfs_metapage.c b/fs/jfs/jfs_metapage.c index 8cb803b54bc1..02add5d8ff89 100644 --- a/fs/jfs/jfs_metapage.c +++ b/fs/jfs/jfs_metapage.c | |||
@@ -640,7 +640,7 @@ struct metapage *__get_metapage(struct inode *inode, unsigned long lblock, | |||
640 | } else { | 640 | } else { |
641 | page = read_cache_page(mapping, page_index, | 641 | page = read_cache_page(mapping, page_index, |
642 | (filler_t *)mapping->a_ops->readpage, NULL); | 642 | (filler_t *)mapping->a_ops->readpage, NULL); |
643 | if (IS_ERR(page)) { | 643 | if (IS_ERR(page) || !PageUptodate(mp->page)) { |
644 | jfs_err("read_cache_page failed!"); | 644 | jfs_err("read_cache_page failed!"); |
645 | return NULL; | 645 | return NULL; |
646 | } | 646 | } |