diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-01-13 17:30:47 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-01-13 17:30:47 -0800 |
| commit | f6bcfd94c0a97c11ce9197ade93a08bc8af6e057 (patch) | |
| tree | 83d867565b4f2a7627b3288f9e000eaf2b217be9 /include/linux/device-mapper.h | |
| parent | 509e4aef44eb10e4aef1f81c3c3ff1214671503b (diff) | |
| parent | 9d09e663d5502c46f2d9481c04c1087e1c2da698 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-2.6-dm
* git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-2.6-dm: (32 commits)
dm: raid456 basic support
dm: per target unplug callback support
dm: introduce target callbacks and congestion callback
dm mpath: delay activate_path retry on SCSI_DH_RETRY
dm: remove superfluous irq disablement in dm_request_fn
dm log: use PTR_ERR value instead of ENOMEM
dm snapshot: avoid storing private suspended state
dm snapshot: persistent make metadata_wq multithreaded
dm: use non reentrant workqueues if equivalent
dm: convert workqueues to alloc_ordered
dm stripe: switch from local workqueue to system_wq
dm: dont use flush_scheduled_work
dm snapshot: remove unused dm_snapshot queued_bios_work
dm ioctl: suppress needless warning messages
dm crypt: add loop aes iv generator
dm crypt: add multi key capability
dm crypt: add post iv call to iv generator
dm crypt: use io thread for reads only if mempool exhausted
dm crypt: scale to multiple cpus
dm crypt: simplify compatible table output
...
Diffstat (limited to 'include/linux/device-mapper.h')
| -rw-r--r-- | include/linux/device-mapper.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h index 2970022faa63..272496d1fae4 100644 --- a/include/linux/device-mapper.h +++ b/include/linux/device-mapper.h @@ -193,6 +193,13 @@ struct dm_target { char *error; }; +/* Each target can link one of these into the table */ +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); void dm_unregister_target(struct target_type *t); @@ -269,6 +276,11 @@ int dm_table_add_target(struct dm_table *t, const char *type, sector_t start, sector_t len, char *params); /* + * Target_ctr should call this if it needs to add any callbacks. + */ +void dm_table_add_target_callbacks(struct dm_table *t, struct dm_target_callbacks *cb); + +/* * Finally call this to make the table ready for use. */ int dm_table_complete(struct dm_table *t); |