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Fix --incremental handling on cluster array. 

Commit 06bd679317 ("Skip clustered devices in incremental")
disabled incremental completely on clustered arrays.
What we really want is that mdadm should not start or create
a clustered array but still be able to add or readd to an existing
device. This would enable udev scripts to automatically add
or re-add a device after transient errors.

Signed-off-by: NeilBrown <neilb@suse.com>
This commit is contained in:
Goldwyn Rodrigues 2015-08-26 11:35:21 -05:00 committed by NeilBrown
parent 86a406c226
commit 9d9202e301
1 changed files with 6 additions and 5 deletions
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11
Incremental.c
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@ -231,11 +231,6 @@ int Incremental(struct mddev_dev *devlist, struct context *c,
devname);
goto out;
}
/* Skip the clustered ones. This should be started by
* clustering resource agents
*/
if (info.array.state & (1 << MD_SB_CLUSTERED))
goto out;
/* 3a/ if not, check for homehost match. If no match, continue
* but don't trust the 'name' in the array. Thus a 'random' minor
@ -317,6 +312,12 @@ int Incremental(struct mddev_dev *devlist, struct context *c,
if (mdfd < 0) {
/* Skip the clustered ones. This should be started by
* clustering resource agents
*/
if (info.array.state & (1 << MD_SB_CLUSTERED))
goto out;
/* Couldn't find an existing array, maybe make a new one */
mdfd = create_mddev(match ? match->devname : NULL,
name_to_use, c->autof, trustworthy, chosen_name);