From 1ae25f9c933d1432fbffdf3e126051a974608abf Mon Sep 17 00:00:00 2001 From: Jonathan Brassow Date: Tue, 6 Jan 2009 03:05:16 +0000 Subject: dm snapshot: rename struct exception_store Rename struct exception_store to dm_exception_store. Signed-off-by: Jonathan Brassow Signed-off-by: Alasdair G Kergon --- drivers/md/dm-exception-store.c | 28 ++++++++++++++-------------- drivers/md/dm-exception-store.h | 19 ++++++++++--------- drivers/md/dm-snap.h | 2 +- 3 files changed, 25 insertions(+), 24 deletions(-) diff --git a/drivers/md/dm-exception-store.c b/drivers/md/dm-exception-store.c index ef152e600cb6..c5c9a2652315 100644 --- a/drivers/md/dm-exception-store.c +++ b/drivers/md/dm-exception-store.c @@ -462,19 +462,19 @@ static int read_exceptions(struct pstore *ps) return 0; } -static struct pstore *get_info(struct exception_store *store) +static struct pstore *get_info(struct dm_exception_store *store) { return (struct pstore *) store->context; } -static void persistent_fraction_full(struct exception_store *store, +static void persistent_fraction_full(struct dm_exception_store *store, sector_t *numerator, sector_t *denominator) { *numerator = get_info(store)->next_free * store->snap->chunk_size; *denominator = get_dev_size(store->snap->cow->bdev); } -static void persistent_destroy(struct exception_store *store) +static void persistent_destroy(struct dm_exception_store *store) { struct pstore *ps = get_info(store); @@ -485,7 +485,7 @@ static void persistent_destroy(struct exception_store *store) kfree(ps); } -static int persistent_read_metadata(struct exception_store *store) +static int persistent_read_metadata(struct dm_exception_store *store) { int r, uninitialized_var(new_snapshot); struct pstore *ps = get_info(store); @@ -551,7 +551,7 @@ static int persistent_read_metadata(struct exception_store *store) return 0; } -static int persistent_prepare(struct exception_store *store, +static int persistent_prepare(struct dm_exception_store *store, struct dm_snap_exception *e) { struct pstore *ps = get_info(store); @@ -578,7 +578,7 @@ static int persistent_prepare(struct exception_store *store, return 0; } -static void persistent_commit(struct exception_store *store, +static void persistent_commit(struct dm_exception_store *store, struct dm_snap_exception *e, void (*callback) (void *, int success), void *callback_context) @@ -640,7 +640,7 @@ static void persistent_commit(struct exception_store *store, ps->callback_count = 0; } -static void persistent_drop(struct exception_store *store) +static void persistent_drop(struct dm_exception_store *store) { struct pstore *ps = get_info(store); @@ -649,7 +649,7 @@ static void persistent_drop(struct exception_store *store) DMWARN("write header failed"); } -int dm_create_persistent(struct exception_store *store) +int dm_create_persistent(struct dm_exception_store *store) { struct pstore *ps; @@ -694,17 +694,17 @@ struct transient_c { sector_t next_free; }; -static void transient_destroy(struct exception_store *store) +static void transient_destroy(struct dm_exception_store *store) { kfree(store->context); } -static int transient_read_metadata(struct exception_store *store) +static int transient_read_metadata(struct dm_exception_store *store) { return 0; } -static int transient_prepare(struct exception_store *store, +static int transient_prepare(struct dm_exception_store *store, struct dm_snap_exception *e) { struct transient_c *tc = (struct transient_c *) store->context; @@ -719,7 +719,7 @@ static int transient_prepare(struct exception_store *store, return 0; } -static void transient_commit(struct exception_store *store, +static void transient_commit(struct dm_exception_store *store, struct dm_snap_exception *e, void (*callback) (void *, int success), void *callback_context) @@ -728,14 +728,14 @@ static void transient_commit(struct exception_store *store, callback(callback_context, 1); } -static void transient_fraction_full(struct exception_store *store, +static void transient_fraction_full(struct dm_exception_store *store, sector_t *numerator, sector_t *denominator) { *numerator = ((struct transient_c *) store->context)->next_free; *denominator = get_dev_size(store->snap->cow->bdev); } -int dm_create_transient(struct exception_store *store) +int dm_create_transient(struct dm_exception_store *store) { struct transient_c *tc; diff --git a/drivers/md/dm-exception-store.h b/drivers/md/dm-exception-store.h index d75f775562e5..25677df8dd59 100644 --- a/drivers/md/dm-exception-store.h +++ b/drivers/md/dm-exception-store.h @@ -36,28 +36,29 @@ struct dm_snap_exception { * Abstraction to handle the meta/layout of exception stores (the * COW device). */ -struct exception_store { +struct dm_exception_store { + /* * Destroys this object when you've finished with it. */ - void (*destroy) (struct exception_store *store); + void (*destroy) (struct dm_exception_store *store); /* * The target shouldn't read the COW device until this is * called. */ - int (*read_metadata) (struct exception_store *store); + int (*read_metadata) (struct dm_exception_store *store); /* * Find somewhere to store the next exception. */ - int (*prepare_exception) (struct exception_store *store, + int (*prepare_exception) (struct dm_exception_store *store, struct dm_snap_exception *e); /* * Update the metadata with this exception. */ - void (*commit_exception) (struct exception_store *store, + void (*commit_exception) (struct dm_exception_store *store, struct dm_snap_exception *e, void (*callback) (void *, int success), void *callback_context); @@ -65,12 +66,12 @@ struct exception_store { /* * The snapshot is invalid, note this in the metadata. */ - void (*drop_snapshot) (struct exception_store *store); + void (*drop_snapshot) (struct dm_exception_store *store); /* * Return how full the snapshot is. */ - void (*fraction_full) (struct exception_store *store, + void (*fraction_full) (struct dm_exception_store *store, sector_t *numerator, sector_t *denominator); @@ -124,8 +125,8 @@ static inline void dm_consecutive_chunk_count_inc(struct dm_snap_exception *e) /* * Two exception store implementations. */ -int dm_create_persistent(struct exception_store *store); +int dm_create_persistent(struct dm_exception_store *store); -int dm_create_transient(struct exception_store *store); +int dm_create_transient(struct dm_exception_store *store); #endif /* _LINUX_DM_EXCEPTION_STORE */ diff --git a/drivers/md/dm-snap.h b/drivers/md/dm-snap.h index 6e4beaf89f6c..928123657024 100644 --- a/drivers/md/dm-snap.h +++ b/drivers/md/dm-snap.h @@ -61,7 +61,7 @@ struct dm_snapshot { spinlock_t pe_lock; /* The on disk metadata handler */ - struct exception_store store; + struct dm_exception_store store; struct dm_kcopyd_client *kcopyd_client; -- cgit v1.2.3