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md/dm - remove remains of plug_fn callback.

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Now that unplugging is done differently, the unplug_fn callback is
never called, so it can be completely discarded.

Signed-off-by: NeilBrown <neilb@suse.de>
This commit is contained in:
NeilBrown 2011-04-18 18:25:41 +10:00
parent e1dfa0a297
commit af1db72d8b
2 changed files with 0 additions and 9 deletions
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8
drivers/md/dm-raid.c
View file

@ -390,13 +390,6 @@ static int raid_is_congested(struct dm_target_callbacks *cb, int bits)
return md_raid5_congested(&rs->md, bits);
}
static void raid_unplug(struct dm_target_callbacks *cb)
{
struct raid_set *rs = container_of(cb, struct raid_set, callbacks);
md_raid5_kick_device(rs->md.private);
}
/*
* Construct a RAID4/5/6 mapping:
* Args:
@ -487,7 +480,6 @@ static int raid_ctr(struct dm_target *ti, unsigned argc, char **argv)
}
rs->callbacks.congested_fn = raid_is_congested;
rs->callbacks.unplug_fn = raid_unplug;
dm_table_add_target_callbacks(ti->table, &rs->callbacks);
return 0;

1
include/linux/device-mapper.h
View file

@ -197,7 +197,6 @@ struct dm_target {
struct dm_target_callbacks {
struct list_head list;
int (*congested_fn) (struct dm_target_callbacks *, int);
void (*unplug_fn)(struct dm_target_callbacks *);
};
int dm_register_target(struct target_type *t);