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dm snapshot: split out exception store implementations

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Move the existing snapshot exception store implementations out into
separate files.  Later patches will place these behind a new
interface in preparation for alternative implementations.

Signed-off-by: Alasdair G Kergon <agk@redhat.com>
This commit is contained in:
Alasdair G Kergon
2009-01-06 03:05:17 +00:00
parent 1ae25f9c93
commit 4db6bfe02b
6 changed files with 834 additions and 738 deletions
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20
drivers/md/dm-snap.c
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@@ -1406,6 +1406,12 @@ static int __init dm_snapshot_init(void)
{
int r;
r = dm_exception_store_init();
if (r) {
DMERR("Failed to initialize exception stores");
return r;
}
r = dm_register_target(&snapshot_target);
if (r) {
DMERR("snapshot target register failed %d", r);
@@ -1454,17 +1460,17 @@ static int __init dm_snapshot_init(void)
return 0;
bad_pending_pool:
bad_pending_pool:
kmem_cache_destroy(tracked_chunk_cache);
bad5:
bad5:
kmem_cache_destroy(pending_cache);
bad4:
bad4:
kmem_cache_destroy(exception_cache);
bad3:
bad3:
exit_origin_hash();
bad2:
bad2:
dm_unregister_target(&origin_target);
bad1:
bad1:
dm_unregister_target(&snapshot_target);
return r;
}
@@ -1480,6 +1486,8 @@ static void __exit dm_snapshot_exit(void)
kmem_cache_destroy(pending_cache);
kmem_cache_destroy(exception_cache);
kmem_cache_destroy(tracked_chunk_cache);
dm_exception_store_exit();
}
/* Module hooks */