xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

dm snapshot: rename struct exception_store

Browse Source 
Rename struct exception_store to dm_exception_store.

Signed-off-by: Jonathan Brassow <jbrassow@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
This commit is contained in:
Jonathan Brassow
2009-01-06 03:05:16 +00:00
committed by Alasdair G Kergon
parent aea53d92f7
commit 1ae25f9c93
3 changed files with 25 additions and 24 deletions
Download Patch File Download Diff File Expand all files Collapse all files

28
drivers/md/dm-exception-store.c
View File

@@ -462,19 +462,19 @@ static int read_exceptions(struct pstore *ps)
return 0; 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; 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) sector_t *numerator, sector_t *denominator)
{ {
*numerator = get_info(store)->next_free * store->snap->chunk_size; *numerator = get_info(store)->next_free * store->snap->chunk_size;
*denominator = get_dev_size(store->snap->cow->bdev); *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); struct pstore *ps = get_info(store);
@@ -485,7 +485,7 @@ static void persistent_destroy(struct exception_store *store)
kfree(ps); 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); int r, uninitialized_var(new_snapshot);
struct pstore *ps = get_info(store); struct pstore *ps = get_info(store);
@@ -551,7 +551,7 @@ static int persistent_read_metadata(struct exception_store *store)
return 0; 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 dm_snap_exception *e)
{ {
struct pstore *ps = get_info(store); struct pstore *ps = get_info(store);
@@ -578,7 +578,7 @@ static int persistent_prepare(struct exception_store *store,
return 0; return 0;
} }
static void persistent_commit(struct exception_store *store, static void persistent_commit(struct dm_exception_store *store,
struct dm_snap_exception *e, struct dm_snap_exception *e,
void (*callback) (void *, int success), void (*callback) (void *, int success),
void *callback_context) void *callback_context)
@@ -640,7 +640,7 @@ static void persistent_commit(struct exception_store *store,
ps->callback_count = 0; 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); struct pstore *ps = get_info(store);
@@ -649,7 +649,7 @@ static void persistent_drop(struct exception_store *store)
DMWARN("write header failed"); DMWARN("write header failed");
} }
int dm_create_persistent(struct exception_store *store) int dm_create_persistent(struct dm_exception_store *store)
{ {
struct pstore *ps; struct pstore *ps;
@@ -694,17 +694,17 @@ struct transient_c {
sector_t next_free; sector_t next_free;
}; };
static void transient_destroy(struct exception_store *store) static void transient_destroy(struct dm_exception_store *store)
{ {
kfree(store->context); kfree(store->context);
} }
static int transient_read_metadata(struct exception_store *store) static int transient_read_metadata(struct dm_exception_store *store)
{ {
return 0; 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 dm_snap_exception *e)
{ {
struct transient_c *tc = (struct transient_c *) store->context; struct transient_c *tc = (struct transient_c *) store->context;
@@ -719,7 +719,7 @@ static int transient_prepare(struct exception_store *store,
return 0; return 0;
} }
static void transient_commit(struct exception_store *store, static void transient_commit(struct dm_exception_store *store,
struct dm_snap_exception *e, struct dm_snap_exception *e,
void (*callback) (void *, int success), void (*callback) (void *, int success),
void *callback_context) void *callback_context)
@@ -728,14 +728,14 @@ static void transient_commit(struct exception_store *store,
callback(callback_context, 1); 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) sector_t *numerator, sector_t *denominator)
{ {
*numerator = ((struct transient_c *) store->context)->next_free; *numerator = ((struct transient_c *) store->context)->next_free;
*denominator = get_dev_size(store->snap->cow->bdev); *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; struct transient_c *tc;

19
drivers/md/dm-exception-store.h
View File

@@ -36,28 +36,29 @@ struct dm_snap_exception {
* Abstraction to handle the meta/layout of exception stores (the * Abstraction to handle the meta/layout of exception stores (the
* COW device). * COW device).
*/ */
struct exception_store { struct dm_exception_store {
/* /*
* Destroys this object when you've finished with it. * 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 * The target shouldn't read the COW device until this is
* called. * called.
*/ */
int (*read_metadata) (struct exception_store *store); int (*read_metadata) (struct dm_exception_store *store);
/* /*
* Find somewhere to store the next exception. * 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); struct dm_snap_exception *e);
/* /*
* Update the metadata with this exception. * 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, struct dm_snap_exception *e,
void (*callback) (void *, int success), void (*callback) (void *, int success),
void *callback_context); void *callback_context);
@@ -65,12 +66,12 @@ struct exception_store {
/* /*
* The snapshot is invalid, note this in the metadata. * 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. * 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 *numerator,
sector_t *denominator); sector_t *denominator);
@@ -124,8 +125,8 @@ static inline void dm_consecutive_chunk_count_inc(struct dm_snap_exception *e)
/* /*
* Two exception store implementations. * 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 */ #endif /* _LINUX_DM_EXCEPTION_STORE */

2
drivers/md/dm-snap.h
View File

@@ -61,7 +61,7 @@ struct dm_snapshot {
spinlock_t pe_lock; spinlock_t pe_lock;
/* The on disk metadata handler */ /* The on disk metadata handler */
struct exception_store store; struct dm_exception_store store;
struct dm_kcopyd_client *kcopyd_client; struct dm_kcopyd_client *kcopyd_client;