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| author | NeilBrown <neilb@suse.de> | 2009-03-31 14:27:03 +1100 |
|---|---|---|
| committer | NeilBrown <neilb@suse.de> | 2009-03-31 14:27:03 +1100 |
| commit | 8b2b5c217c20b5460218ab8731295f2e46c7dd29 (patch) | |
| tree | f5da8b06b3d2a53e80c31e0c0aa386e381b3a841 /include/linux/raid/md_u.h | |
| parent | ef740c372dfd80e706dbf955d4e4aedda6c0c148 (diff) | |
| download | blackbird-op-linux-8b2b5c217c20b5460218ab8731295f2e46c7dd29.tar.gz blackbird-op-linux-8b2b5c217c20b5460218ab8731295f2e46c7dd29.zip | |
md: move LEVEL_* definition from md_k.h to md_u.h
.. as they are part of the user-space interface.
Also move MdpMinorShift into there so we can remove duplication.
Lastly move mdp_major in. It is less obviously part of the user-space
interface, but do_mounts_md.c uses it, and it is acting a bit like
user-space.
Signed-off-by: NeilBrown <neilb@suse.de>
Diffstat (limited to 'include/linux/raid/md_u.h')
| -rw-r--r-- | include/linux/raid/md_u.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/include/linux/raid/md_u.h b/include/linux/raid/md_u.h index 7192035fc4b0..2f824aa889f3 100644 --- a/include/linux/raid/md_u.h +++ b/include/linux/raid/md_u.h @@ -46,6 +46,12 @@ #define STOP_ARRAY_RO _IO (MD_MAJOR, 0x33) #define RESTART_ARRAY_RW _IO (MD_MAJOR, 0x34) +/* 63 partitions with the alternate major number (mdp) */ +#define MdpMinorShift 6 +#ifdef __KERNEL__ +extern int mdp_major; +#endif + typedef struct mdu_version_s { int major; int minor; @@ -85,6 +91,17 @@ typedef struct mdu_array_info_s { } mdu_array_info_t; +/* non-obvious values for 'level' */ +#define LEVEL_MULTIPATH (-4) +#define LEVEL_LINEAR (-1) +#define LEVEL_FAULTY (-5) + +/* we need a value for 'no level specified' and 0 + * means 'raid0', so we need something else. This is + * for internal use only + */ +#define LEVEL_NONE (-1000000) + typedef struct mdu_disk_info_s { /* * configuration/status of one particular disk |
