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dm snapshot: rename exception_table to dm_exception_table

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Rename exception_table for broader use outside dm-snap.c

Signed-off-by: Jonathan Brassow <jbrassow@redhat.com>
Reviewed-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
This commit is contained in:
Jon Brassow
2009-12-10 23:52:10 +00:00
committed by Alasdair G Kergon
parent 1d4989c858
commit 191437a53c
1 changed files with 9 additions and 8 deletions
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17
drivers/md/dm-snap.c
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@@ -49,7 +49,7 @@
#define DM_TRACKED_CHUNK_HASH(x) ((unsigned long)(x) & \ #define DM_TRACKED_CHUNK_HASH(x) ((unsigned long)(x) & \
(DM_TRACKED_CHUNK_HASH_SIZE - 1)) (DM_TRACKED_CHUNK_HASH_SIZE - 1))
struct exception_table { struct dm_exception_table {
uint32_t hash_mask; uint32_t hash_mask;
unsigned hash_shift; unsigned hash_shift;
struct list_head *table; struct list_head *table;
@@ -73,8 +73,8 @@ struct dm_snapshot {
atomic_t pending_exceptions_count; atomic_t pending_exceptions_count;
struct exception_table pending; struct dm_exception_table pending;
struct exception_table complete; struct dm_exception_table complete;
/* /*
* pe_lock protects all pending_exception operations and access * pe_lock protects all pending_exception operations and access
@@ -351,7 +351,7 @@ static void unregister_snapshot(struct dm_snapshot *s)
* The lowest hash_shift bits of the chunk number are ignored, allowing * The lowest hash_shift bits of the chunk number are ignored, allowing
* some consecutive chunks to be grouped together. * some consecutive chunks to be grouped together.
*/ */
static int init_exception_table(struct exception_table *et, uint32_t size, static int init_exception_table(struct dm_exception_table *et, uint32_t size,
unsigned hash_shift) unsigned hash_shift)
{ {
unsigned int i; unsigned int i;
@@ -368,7 +368,8 @@ static int init_exception_table(struct exception_table *et, uint32_t size,
return 0; return 0;
} }
static void exit_exception_table(struct exception_table *et, struct kmem_cache *mem) static void exit_exception_table(struct dm_exception_table *et,
struct kmem_cache *mem)
{ {
struct list_head *slot; struct list_head *slot;
struct dm_exception *ex, *next; struct dm_exception *ex, *next;
@@ -385,7 +386,7 @@ static void exit_exception_table(struct exception_table *et, struct kmem_cache *
vfree(et->table); vfree(et->table);
} }
static uint32_t exception_hash(struct exception_table *et, chunk_t chunk) static uint32_t exception_hash(struct dm_exception_table *et, chunk_t chunk)
{ {
return (chunk >> et->hash_shift) & et->hash_mask; return (chunk >> et->hash_shift) & et->hash_mask;
} }
@@ -399,7 +400,7 @@ static void remove_exception(struct dm_exception *e)
* Return the exception data for a sector, or NULL if not * Return the exception data for a sector, or NULL if not
* remapped. * remapped.
*/ */
static struct dm_exception *lookup_exception(struct exception_table *et, static struct dm_exception *lookup_exception(struct dm_exception_table *et,
chunk_t chunk) chunk_t chunk)
{ {
struct list_head *slot; struct list_head *slot;
@@ -450,7 +451,7 @@ static void free_pending_exception(struct dm_snap_pending_exception *pe)
atomic_dec(&s->pending_exceptions_count); atomic_dec(&s->pending_exceptions_count);
} }
static void insert_exception(struct exception_table *eh, static void insert_exception(struct dm_exception_table *eh,
struct dm_exception *new_e) struct dm_exception *new_e)
{ {
struct list_head *l; struct list_head *l;