drivers/md/dm-thin.c

8 #include "dm-thin-metadata.h"
26 #define	DM_MSG_PREFIX	"thin"
337  * Target context for a thin.
358 	 * Ensures the thin is not destroyed until the worker has finished
671  * This section of code contains the logic for processing a thin device's IO.
673  * but most is exclusively called from the thin target rather than the thin-pool
2329  * find a thin with the rcu lock held; bump a refcount; then drop
2674  * Called only while mapping a thin bio to hand it over to the workqueue.
2721  * Non-blocking function called from the thin target's map function.
3265 	 * 4M is ample for all ops with the possible exception of thin  in calc_metadata_threshold()
3275  * thin-pool <metadata dev> <data dev>
3377 	 * initial load.  This would require a pool reload to trigger thin  in pool_ctr()
3397 	 * them down to the data device.  The thin device's discard  in pool_ctr()
3405 		 * thin devices' discard limits consistent).  in pool_ctr()
3593 	 * When a thin-pool is PM_FAIL, it cannot be rebuilt if  in pool_preresume()
3607 	/* Suspend all active thin devices */  in pool_suspend_active_thins()
3619 	/* Resume all active thin devices */  in pool_resume_active_thins()
3771 		DMWARN("Deletion of thin device %s failed.", argv[1]);  in process_delete_mesg()
3878 		DMWARN("Unrecognised thin pool target message received: %s", argv[0]);  in pool_message()
4114 	.name = "thin-pool",
4135  * Thin target methods
4174  * Thin target parameters:
4182  * If the pool device has discards disabled, they get disabled for the thin
4257 		ti->error = "Couldn't open thin device, Pool is in fail mode";  in thin_ctr()
4264 		ti->error = "Couldn't open thin internal device";  in thin_ctr()
4291 		ti->error = "Unable to activate thin device while pool is suspended";  in thin_ctr()
4501 	.name = "thin",
4562 MODULE_DESCRIPTION(DM_NAME " thin provisioning target");