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| author | NeilBrown <neilb@suse.de> | 2006-01-06 00:20:17 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-01-06 08:34:03 -0800 |
| commit | ca65b73bd9c301d243df93780f7b26579e6c9204 (patch) | |
| tree | 1ca8157e11033989ee94c20b1f2d4c936f9dc09c /include/linux | |
| parent | 6cce3b23f6f8e974c00af7a9b88f1d413ba368a8 (diff) | |
| download | linux-3.10-ca65b73bd9c301d243df93780f7b26579e6c9204.tar.gz linux-3.10-ca65b73bd9c301d243df93780f7b26579e6c9204.tar.bz2 linux-3.10-ca65b73bd9c301d243df93780f7b26579e6c9204.zip | |
[PATCH] md: fix raid6 resync check/repair code
raid6 currently does not check the P/Q syndromes when doing a resync, it just
calculates the correct value and writes it. Doing the check can reduce writes
(often to 0) for a resync, and it is needed to properly implement the
echo check > sync_action
operation.
This patch implements the appropriate checks and tidies up some related code.
It also allows raid6 user-requested resync to bypass the intent bitmap.
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/raid/raid5.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/raid/raid5.h b/include/linux/raid/raid5.h index f025ba6fb14..e9c1c0d4f90 100644 --- a/include/linux/raid/raid5.h +++ b/include/linux/raid/raid5.h @@ -228,6 +228,8 @@ struct raid5_private_data { * Cleared when a sync completes. */ + struct page *spare_page; /* Used when checking P/Q in raid6 */ + /* * Free stripes pool */ |