diff options
Diffstat (limited to 'drivers/md/raid5.h')
| -rw-r--r-- | drivers/md/raid5.h | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/md/raid5.h b/drivers/md/raid5.h index f6faaa16a565..8d8e13934a48 100644 --- a/drivers/md/raid5.h +++ b/drivers/md/raid5.h @@ -242,7 +242,13 @@ struct stripe_head { * for handle_stripe. */ struct stripe_head_state { - int syncing, expanding, expanded; + /* 'syncing' means that we need to read all devices, either + * to check/correct parity, or to reconstruct a missing device. + * 'replacing' means we are replacing one or more drives and + * the source is valid at this point so we don't need to + * read all devices, just the replacement targets. + */ + int syncing, expanding, expanded, replacing; int locked, uptodate, to_read, to_write, failed, written; int to_fill, compute, req_compute, non_overwrite; int failed_num[2]; @@ -284,6 +290,11 @@ enum r5dev_flags { R5_ReadRepl, /* Will/did read from replacement rather than orig */ R5_MadeGoodRepl,/* A bad block on the replacement device has been * fixed by writing to it */ + R5_NeedReplace, /* This device has a replacement which is not + * up-to-date at this stripe. */ + R5_WantReplace, /* We need to update the replacement, we have read + * data in, and now is a good time to write it out. + */ }; /* |