brassow
If the exception store API ever becomes as popular as the
dm-dirty-log.h API, then we should make the name of the
exception store structure a little more official.
s/exception_store/dm_exception_store/
Index: linux-2.6/drivers/md/dm-exception-store.c
===================================================================
--- linux-2.6.orig/drivers/md/dm-exception-store.c
+++ linux-2.6/drivers/md/dm-exception-store.c
@@ -462,19 +462,19 @@ static int read_exceptions(struct pstore
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 ex
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(stru
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 exc
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 exc
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 excep
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 exce
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 exce
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;
Index: linux-2.6/drivers/md/dm-exception-store.h
===================================================================
--- linux-2.6.orig/drivers/md/dm-exception-store.h
+++ linux-2.6/drivers/md/dm-exception-store.h
@@ -79,29 +79,29 @@ static inline void dm_consecutive_chunk_
* 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);
@@ -109,12 +109,12 @@ 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);
@@ -125,9 +125,9 @@ struct exception_store {
/*
* Constructor and destructor for the exception stores
*/
-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 /* __KERNEL__ */
Index: linux-2.6/drivers/md/dm-snap.h
===================================================================
--- linux-2.6.orig/drivers/md/dm-snap.h
+++ linux-2.6/drivers/md/dm-snap.h
@@ -62,7 +62,7 @@ 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;
--
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