diff options
| author | Mike Snitzer <snitzer@redhat.com> | 2009-06-22 10:12:33 +0100 |
|---|---|---|
| committer | Alasdair G Kergon <agk@redhat.com> | 2009-06-22 10:12:33 +0100 |
| commit | af4874e03ed82f050d5872d8c39ce64bf16b5c38 (patch) | |
| tree | 38aa5dee43b4bb7a369995d4f38dee992cb051e0 /drivers/md/dm-linear.c | |
| parent | 1197764e403d97231eb6da2b1e16f511a7fd3101 (diff) | |
dm target:s introduce iterate devices fn
Add .iterate_devices to 'struct target_type' to allow a function to be
called for all devices in a DM target. Implemented it for all targets
except those in dm-snap.c (origin and snapshot).
(The raid1 version number jumps to 1.12 because we originally reserved
1.1 to 1.11 for 'block_on_error' but ended up using 'handle_errors'
instead.)
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Cc: martin.petersen@oracle.com
Diffstat (limited to 'drivers/md/dm-linear.c')
| -rw-r--r-- | drivers/md/dm-linear.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/md/dm-linear.c b/drivers/md/dm-linear.c index ecbb17421da4..9184b6deb868 100644 --- a/drivers/md/dm-linear.c +++ b/drivers/md/dm-linear.c @@ -134,9 +134,17 @@ static int linear_merge(struct dm_target *ti, struct bvec_merge_data *bvm, return min(max_size, q->merge_bvec_fn(q, bvm, biovec)); } +static int linear_iterate_devices(struct dm_target *ti, + iterate_devices_callout_fn fn, void *data) +{ + struct linear_c *lc = ti->private; + + return fn(ti, lc->dev, lc->start, data); +} + static struct target_type linear_target = { .name = "linear", - .version= {1, 0, 3}, + .version = {1, 1, 0}, .module = THIS_MODULE, .ctr = linear_ctr, .dtr = linear_dtr, @@ -144,6 +152,7 @@ static struct target_type linear_target = { .status = linear_status, .ioctl = linear_ioctl, .merge = linear_merge, + .iterate_devices = linear_iterate_devices, }; int __init dm_linear_init(void) |