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| author | Joe Thornber <ejt@redhat.com> | 2012-07-27 16:08:09 +0200 |
|---|---|---|
| committer | Alasdair G Kergon <agk@redhat.com> | 2012-07-27 16:08:09 +0200 |
| commit | 384ef0e62e409e52c80adef5b1ff83075377c19e (patch) | |
| tree | 734db218c323e88a303f64218661286f94f9e52a /drivers/md/persistent-data/dm-transaction-manager.h | |
| parent | dm thin metadata: stop tracking need for commit (diff) | |
| download | linux-384ef0e62e409e52c80adef5b1ff83075377c19e.tar.xz linux-384ef0e62e409e52c80adef5b1ff83075377c19e.zip | |
dm persistent data: tidy transaction manager creation fns
Tidy the transaction manager creation functions.
They no longer lock the superblock. Superblock locking is pulled out to
the caller.
Also export dm_bm_write_lock_zero.
Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Diffstat (limited to 'drivers/md/persistent-data/dm-transaction-manager.h')
| -rw-r--r-- | drivers/md/persistent-data/dm-transaction-manager.h | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/drivers/md/persistent-data/dm-transaction-manager.h b/drivers/md/persistent-data/dm-transaction-manager.h index 6da784871db4..b5b139076ca5 100644 --- a/drivers/md/persistent-data/dm-transaction-manager.h +++ b/drivers/md/persistent-data/dm-transaction-manager.h @@ -115,16 +115,17 @@ struct dm_block_manager *dm_tm_get_bm(struct dm_transaction_manager *tm); * * Returns a tm that has an open transaction to write the new disk sm. * Caller should store the new sm root and commit. + * + * The superblock location is passed so the metadata space map knows it + * shouldn't be used. */ int dm_tm_create_with_sm(struct dm_block_manager *bm, dm_block_t sb_location, - struct dm_block_validator *sb_validator, struct dm_transaction_manager **tm, - struct dm_space_map **sm, struct dm_block **sblock); + struct dm_space_map **sm); int dm_tm_open_with_sm(struct dm_block_manager *bm, dm_block_t sb_location, - struct dm_block_validator *sb_validator, - size_t root_offset, size_t root_max_len, + void *sm_root, size_t root_len, struct dm_transaction_manager **tm, - struct dm_space_map **sm, struct dm_block **sblock); + struct dm_space_map **sm); #endif /* _LINUX_DM_TRANSACTION_MANAGER_H */ |