diff options
Diffstat (limited to 'drivers/md/dm-snap.c')
| -rw-r--r-- | drivers/md/dm-snap.c | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/drivers/md/dm-snap.c b/drivers/md/dm-snap.c index 4dc8a43c034..1ba8a47d61b 100644 --- a/drivers/md/dm-snap.c +++ b/drivers/md/dm-snap.c @@ -18,10 +18,10 @@ #include <linux/slab.h> #include <linux/vmalloc.h> #include <linux/log2.h> +#include <linux/dm-kcopyd.h> #include "dm-snap.h" #include "dm-bio-list.h" -#include "kcopyd.h" #define DM_MSG_PREFIX "snapshots" @@ -36,9 +36,9 @@ #define SNAPSHOT_COPY_PRIORITY 2 /* - * Each snapshot reserves this many pages for io + * Reserve 1MB for each snapshot initially (with minimum of 1 page). */ -#define SNAPSHOT_PAGES 256 +#define SNAPSHOT_PAGES (((1UL << 20) >> PAGE_SHIFT) ? : 1) static struct workqueue_struct *ksnapd; static void flush_queued_bios(struct work_struct *work); @@ -536,7 +536,7 @@ static int snapshot_ctr(struct dm_target *ti, unsigned int argc, char **argv) s->last_percent = 0; init_rwsem(&s->lock); spin_lock_init(&s->pe_lock); - s->table = ti->table; + s->ti = ti; /* Allocate hash table for COW data */ if (init_hash_tables(s)) { @@ -558,7 +558,7 @@ static int snapshot_ctr(struct dm_target *ti, unsigned int argc, char **argv) goto bad4; } - r = kcopyd_client_create(SNAPSHOT_PAGES, &s->kcopyd_client); + r = dm_kcopyd_client_create(SNAPSHOT_PAGES, &s->kcopyd_client); if (r) { ti->error = "Could not create kcopyd client"; goto bad5; @@ -591,7 +591,7 @@ static int snapshot_ctr(struct dm_target *ti, unsigned int argc, char **argv) return 0; bad6: - kcopyd_client_destroy(s->kcopyd_client); + dm_kcopyd_client_destroy(s->kcopyd_client); bad5: s->store.destroy(&s->store); @@ -613,7 +613,7 @@ static int snapshot_ctr(struct dm_target *ti, unsigned int argc, char **argv) static void __free_exceptions(struct dm_snapshot *s) { - kcopyd_client_destroy(s->kcopyd_client); + dm_kcopyd_client_destroy(s->kcopyd_client); s->kcopyd_client = NULL; exit_exception_table(&s->pending, pending_cache); @@ -699,7 +699,7 @@ static void __invalidate_snapshot(struct dm_snapshot *s, int err) s->valid = 0; - dm_table_event(s->table); + dm_table_event(s->ti->table); } static void get_pending_exception(struct dm_snap_pending_exception *pe) @@ -824,7 +824,7 @@ static void copy_callback(int read_err, unsigned long write_err, void *context) static void start_copy(struct dm_snap_pending_exception *pe) { struct dm_snapshot *s = pe->snap; - struct io_region src, dest; + struct dm_io_region src, dest; struct block_device *bdev = s->origin->bdev; sector_t dev_size; @@ -839,7 +839,7 @@ static void start_copy(struct dm_snap_pending_exception *pe) dest.count = src.count; /* Hand over to kcopyd */ - kcopyd_copy(s->kcopyd_client, + dm_kcopyd_copy(s->kcopyd_client, &src, 1, &dest, 0, copy_callback, pe); } @@ -1060,7 +1060,7 @@ static int __origin_write(struct list_head *snapshots, struct bio *bio) goto next_snapshot; /* Nothing to do if writing beyond end of snapshot */ - if (bio->bi_sector >= dm_table_get_size(snap->table)) + if (bio->bi_sector >= dm_table_get_size(snap->ti->table)) goto next_snapshot; /* |