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authorSong Liu <songliubraving@fb.com>2015-10-09 06:54:09 +0200
committerNeilBrown <neilb@suse.com>2015-11-01 03:48:29 +0100
commita97b7896447a89749d9258fbb9d8c3faf48a7a4e (patch)
tree4d1718f235e90e20c7385097c307d56d343689ba /drivers/md/md.h
parentraid5-cache: IO error handling (diff)
downloadlinux-a97b7896447a89749d9258fbb9d8c3faf48a7a4e.tar.xz
linux-a97b7896447a89749d9258fbb9d8c3faf48a7a4e.zip
MD: add new bit to indicate raid array with journal
If a raid array has journal feature bit set, add a new bit to indicate this. If the array is started without journal disk existing, we know there is something wrong. Signed-off-by: Song Liu <songliubraving@fb.com> Signed-off-by: Shaohua Li <shli@fb.com> Signed-off-by: NeilBrown <neilb@suse.com>
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 e14e667a20e9..2bea51edfab7 100644
--- a/drivers/md/md.h
+++ b/drivers/md/md.h
@@ -233,6 +233,7 @@ struct mddev {
* md_ioctl checked on it.
*/
#define MD_JOURNAL_CLEAN 5 /* A raid with journal is already clean */
+#define MD_HAS_JOURNAL 6 /* The raid array has journal feature set */
int suspended;
atomic_t active_io;