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Diffstat (limited to 'drivers/md/dm-snap.c')
-rw-r--r--drivers/md/dm-snap.c34
1 files changed, 16 insertions, 18 deletions
diff --git a/drivers/md/dm-snap.c b/drivers/md/dm-snap.c
index ee8eb283650..54853773510 100644
--- a/drivers/md/dm-snap.c
+++ b/drivers/md/dm-snap.c
@@ -83,10 +83,10 @@ struct dm_snapshot {
/* Whether or not owning mapped_device is suspended */
int suspended;
- mempool_t *pending_pool;
-
atomic_t pending_exceptions_count;
+ mempool_t *pending_pool;
+
struct dm_exception_table pending;
struct dm_exception_table complete;
@@ -96,6 +96,11 @@ struct dm_snapshot {
*/
spinlock_t pe_lock;
+ /* Chunks with outstanding reads */
+ spinlock_t tracked_chunk_lock;
+ mempool_t *tracked_chunk_pool;
+ struct hlist_head tracked_chunk_hash[DM_TRACKED_CHUNK_HASH_SIZE];
+
/* The on disk metadata handler */
struct dm_exception_store *store;
@@ -105,10 +110,12 @@ struct dm_snapshot {
struct bio_list queued_bios;
struct work_struct queued_bios_work;
- /* Chunks with outstanding reads */
- mempool_t *tracked_chunk_pool;
- spinlock_t tracked_chunk_lock;
- struct hlist_head tracked_chunk_hash[DM_TRACKED_CHUNK_HASH_SIZE];
+ /* Wait for events based on state_bits */
+ unsigned long state_bits;
+
+ /* Range of chunks currently being merged. */
+ chunk_t first_merging_chunk;
+ int num_merging_chunks;
/*
* The merge operation failed if this flag is set.
@@ -125,13 +132,6 @@ struct dm_snapshot {
*/
int merge_failed;
- /* Wait for events based on state_bits */
- unsigned long state_bits;
-
- /* Range of chunks currently being merged. */
- chunk_t first_merging_chunk;
- int num_merging_chunks;
-
/*
* Incoming bios that overlap with chunks being merged must wait
* for them to be committed.
@@ -1081,8 +1081,7 @@ static int snapshot_ctr(struct dm_target *ti, unsigned int argc, char **argv)
argv++;
argc--;
- r = dm_get_device(ti, cow_path, 0, 0,
- FMODE_READ | FMODE_WRITE, &s->cow);
+ r = dm_get_device(ti, cow_path, FMODE_READ | FMODE_WRITE, &s->cow);
if (r) {
ti->error = "Cannot get COW device";
goto bad_cow;
@@ -1098,7 +1097,7 @@ static int snapshot_ctr(struct dm_target *ti, unsigned int argc, char **argv)
argv += args_used;
argc -= args_used;
- r = dm_get_device(ti, origin_path, 0, ti->len, origin_mode, &s->origin);
+ r = dm_get_device(ti, origin_path, origin_mode, &s->origin);
if (r) {
ti->error = "Cannot get origin device";
goto bad_origin;
@@ -2100,8 +2099,7 @@ static int origin_ctr(struct dm_target *ti, unsigned int argc, char **argv)
return -EINVAL;
}
- r = dm_get_device(ti, argv[0], 0, ti->len,
- dm_table_get_mode(ti->table), &dev);
+ r = dm_get_device(ti, argv[0], dm_table_get_mode(ti->table), &dev);
if (r) {
ti->error = "Cannot get target device";
return r;