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authorNeilBrown <neilb@suse.de>2006-10-03 01:15:46 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-10-03 08:04:17 -0700
commit850b2b420cd5b363ed4cf48a8816d656c8b5251b (patch)
treeb63aa37b3fb7dfb7a0b674d5a2ebe9da13cc7405 /drivers/md/raid1.c
parent6814d5368d68341ec6b5e4ecd10ea5947130775a (diff)
downloadop-kernel-dev-850b2b420cd5b363ed4cf48a8816d656c8b5251b.zip
op-kernel-dev-850b2b420cd5b363ed4cf48a8816d656c8b5251b.tar.gz
[PATCH] md: replace magic numbers in sb_dirty with well defined bit flags
Instead of magic numbers (0,1,2,3) in sb_dirty, we have some flags instead: MD_CHANGE_DEVS Some device state has changed requiring superblock update on all devices. MD_CHANGE_CLEAN The array has transitions from 'clean' to 'dirty' or back, requiring a superblock update on active devices, but possibly not on spares MD_CHANGE_PENDING A superblock update is underway. We wait for an update to complete by waiting for all flags to be clear. A flag can be set at any time, even during an update, without risk that the change will be lost. Stop exporting md_update_sb - isn't needed. 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 'drivers/md/raid1.c')
-rw-r--r--drivers/md/raid1.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 3b4d69c..2817c47 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -969,7 +969,7 @@ static void error(mddev_t *mddev, mdk_rdev_t *rdev)
}
clear_bit(In_sync, &rdev->flags);
set_bit(Faulty, &rdev->flags);
- mddev->sb_dirty = 1;
+ set_bit(MD_CHANGE_DEVS, &mddev->flags);
printk(KERN_ALERT "raid1: Disk failure on %s, disabling device. \n"
" Operation continuing on %d devices\n",
bdevname(rdev->bdev,b), conf->working_disks);
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