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dm: per target unplug callback support

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Add per-target unplug callback support.

Cc: [email protected]
Signed-off-by: NeilBrown <[email protected]>
Signed-off-by: Jonathan Brassow <[email protected]>
Signed-off-by: Mike Snitzer <[email protected]>
Signed-off-by: Alasdair G Kergon <[email protected]>
This commit is contained in:
NeilBrown 2011-01-13 20:00:02 +00:00 • committed by Alasdair G Kergon
commit 99d03c141b
2 changed files with 6 additions and 0 deletions
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5
drivers/md/dm-table.c
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@ -1278,6 +1278,7 @@ void dm_table_unplug_all(struct dm_table *t)
{
struct dm_dev_internal *dd;
struct list_head *devices = dm_table_get_devices(t);
struct dm_target_callbacks *cb;
list_for_each_entry(dd, devices, list) {
struct request_queue *q = bdev_get_queue(dd->dm_dev.bdev);
@ -1290,6 +1291,10 @@ void dm_table_unplug_all(struct dm_table *t)
dm_device_name(t->md),
bdevname(dd->dm_dev.bdev, b));
}
list_for_each_entry(cb, &t->target_callbacks, list)
if (cb->unplug_fn)
cb->unplug_fn(cb);
}
struct mapped_device *dm_table_get_md(struct dm_table *t)