md: rename ->stop to ->free

Now that the ->stop function only frees the private data,
rename is accordingly.

Also pass in the private pointer as an arg rather than using
mddev->private.  This flexibility will be useful in level_store().

Finally, don't clear ->private.  It doesn't make sense to clear
it seeing that isn't what we free, and it is no longer necessary
to clear ->private (it was some time ago before  ->to_remove was
introduced).

Setting ->to_remove in ->free() is a bit of a wart, but not a
big problem at the moment.

Signed-off-by: NeilBrown <neilb@suse.de>
This commit is contained in:
NeilBrown
2014-12-15 12:56:58 +11:00
parent 5aa61f427e
commit afa0f557cb
9 changed files with 35 additions and 50 deletions

View File

@@ -2872,7 +2872,7 @@ static struct r1conf *setup_conf(struct mddev *mddev)
return ERR_PTR(err);
}
static int stop(struct mddev *mddev);
static void raid1_free(struct mddev *mddev, void *priv);
static int run(struct mddev *mddev)
{
struct r1conf *conf;
@@ -2894,7 +2894,7 @@ static int run(struct mddev *mddev)
/*
* copy the already verified devices into our private RAID1
* bookkeeping area. [whatever we allocate in run(),
* should be freed in stop()]
* should be freed in raid1_free()]
*/
if (mddev->private == NULL)
conf = setup_conf(mddev);
@@ -2956,14 +2956,14 @@ static int run(struct mddev *mddev)
ret = md_integrity_register(mddev);
if (ret) {
md_unregister_thread(&mddev->thread);
stop(mddev);
raid1_free(mddev, conf);
}
return ret;
}
static int stop(struct mddev *mddev)
static void raid1_free(struct mddev *mddev, void *priv)
{
struct r1conf *conf = mddev->private;
struct r1conf *conf = priv;
if (conf->r1bio_pool)
mempool_destroy(conf->r1bio_pool);
@@ -2971,8 +2971,6 @@ static int stop(struct mddev *mddev)
safe_put_page(conf->tmppage);
kfree(conf->poolinfo);
kfree(conf);
mddev->private = NULL;
return 0;
}
static int raid1_resize(struct mddev *mddev, sector_t sectors)
@@ -3155,7 +3153,7 @@ static struct md_personality raid1_personality =
.owner = THIS_MODULE,
.make_request = make_request,
.run = run,
.stop = stop,
.free = raid1_free,
.status = status,
.error_handler = error,
.hot_add_disk = raid1_add_disk,