diff options
| author | Neil Brown <neilb@cse.unsw.edu.au> | 2002-05-17 22:03:08 -0700 |
|---|---|---|
| committer | Christoph Hellwig <hch@sb.bsdonline.org> | 2002-05-17 22:03:08 -0700 |
| commit | bd415ca2e54b2b305aa4b3a9bec2bf67c3bedcbf (patch) | |
| tree | 05af3721ba2c531a2516d25cfb41c6383fe80c6e /include/linux/raid | |
| parent | b51682c0e5057003cef712d5accd4cf76613bd90 (diff) | |
[PATCH] Change MD Superblock IO to go straight to submit_bio
The current code hits the page cache for the block device
which requires memory allocation which can sometimes cause
a deadlock (if it blocks the raid5d thread).
This code takes the page that holds the superblock, and
passes it to submit_bh in a suitable bio wrapper.
Diffstat (limited to 'include/linux/raid')
| -rw-r--r-- | include/linux/raid/md_k.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/include/linux/raid/md_k.h b/include/linux/raid/md_k.h index 997d45fa7be7..62024cab73f2 100644 --- a/include/linux/raid/md_k.h +++ b/include/linux/raid/md_k.h @@ -169,8 +169,9 @@ struct mdk_rdev_s struct block_device *bdev; /* block device handle */ - mdp_super_t *sb; - unsigned long sb_offset; + struct page *sb_page; + mdp_super_t *sb; + unsigned long sb_offset; int alias_device; /* device alias to the same disk */ int faulty; /* if faulty do not issue IO requests */ |