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authorJonathan Brassow <jbrassow@redhat.com>2011-06-08 17:59:30 -0500
committerNeilBrown <neilb@suse.de>2011-06-09 11:41:36 +1000
commit9c81075f436f867f580c2edf2350c0898cffc9d0 (patch)
tree025ec9792e7f5700d9383ba15f953fb0d1f07ec9 /drivers/md/md.h
parent076f968b37f0232d883749da8f5031df5dea7ade (diff)
downloadop-kernel-dev-9c81075f436f867f580c2edf2350c0898cffc9d0.zip
op-kernel-dev-9c81075f436f867f580c2edf2350c0898cffc9d0.tar.gz
MD: support initial bitmap creation in-kernel
Add bitmap support to the device-mapper specific metadata area. This patch allows the creation of the bitmap metadata area upon initial array creation via device-mapper. Signed-off-by: Jonathan Brassow <jbrassow@redhat.com> Signed-off-by: NeilBrown <neilb@suse.de>
Diffstat (limited to 'drivers/md/md.h')
-rw-r--r--drivers/md/md.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/md/md.h b/drivers/md/md.h
index 5e35535..1c26c7a 100644
--- a/drivers/md/md.h
+++ b/drivers/md/md.h
@@ -124,6 +124,7 @@ struct mddev_s
#define MD_CHANGE_DEVS 0 /* Some device status has changed */
#define MD_CHANGE_CLEAN 1 /* transition to or from 'clean' */
#define MD_CHANGE_PENDING 2 /* switch from 'clean' to 'active' in progress */
+#define MD_ARRAY_FIRST_USE 3 /* First use of array, needs initialization */
int suspended;
atomic_t active_io;
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