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Subject[2.6.23 PATCH 03/18] dm: use kmem_cache macro
From: Alasdair G Kergon <agk@redhat.com>

Use new KMEM_CACHE() macro and make the newly-exposed structure names more
meaningful. Also remove some superfluous casts and inlines (let a modern
compiler be the judge).

Cc: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>

---
drivers/md/dm-crypt.c | 30 +++++------
drivers/md/dm-delay.c | 11 +---
drivers/md/dm-exception-store.c | 17 +++---
drivers/md/dm-mpath.c | 23 ++++----
drivers/md/dm-snap.c | 105 +++++++++++++++++++---------------------
drivers/md/dm-snap.h | 6 +-
drivers/md/dm.c | 24 ++++-----
drivers/md/kcopyd.c | 11 +---
8 files changed, 106 insertions(+), 121 deletions(-)
Index: linux/drivers/md/dm-crypt.c
===================================================================
--- linux.orig/drivers/md/dm-crypt.c 2007-07-11 21:37:32.000000000 +0100
+++ linux/drivers/md/dm-crypt.c 2007-07-11 21:37:38.000000000 +0100
@@ -30,7 +30,7 @@
/*
* per bio private data
*/
-struct crypt_io {
+struct dm_crypt_io {
struct dm_target *target;
struct bio *base_bio;
struct work_struct work;
@@ -106,7 +106,7 @@ struct crypt_config {

static struct kmem_cache *_crypt_io_pool;

-static void clone_init(struct crypt_io *, struct bio *);
+static void clone_init(struct dm_crypt_io *, struct bio *);

/*
* Different IV generation algorithms:
@@ -382,7 +382,7 @@ static int crypt_convert(struct crypt_co

static void dm_crypt_bio_destructor(struct bio *bio)
{
- struct crypt_io *io = bio->bi_private;
+ struct dm_crypt_io *io = bio->bi_private;
struct crypt_config *cc = io->target->private;

bio_free(bio, cc->bs);
@@ -393,7 +393,7 @@ static int crypt_convert(struct crypt_co
* This should never violate the device limitations
* May return a smaller bio when running out of pages
*/
-static struct bio *crypt_alloc_buffer(struct crypt_io *io, unsigned int size)
+static struct bio *crypt_alloc_buffer(struct dm_crypt_io *io, unsigned size)
{
struct crypt_config *cc = io->target->private;
struct bio *clone;
@@ -479,7 +479,7 @@ static void crypt_free_buffer_pages(stru
* One of the bios was finished. Check for completion of
* the whole request and correctly clean up the buffer.
*/
-static void dec_pending(struct crypt_io *io, int error)
+static void dec_pending(struct dm_crypt_io *io, int error)
{
struct crypt_config *cc = (struct crypt_config *) io->target->private;

@@ -503,7 +503,7 @@ static void dec_pending(struct crypt_io
static struct workqueue_struct *_kcryptd_workqueue;
static void kcryptd_do_work(struct work_struct *work);

-static void kcryptd_queue_io(struct crypt_io *io)
+static void kcryptd_queue_io(struct dm_crypt_io *io)
{
INIT_WORK(&io->work, kcryptd_do_work);
queue_work(_kcryptd_workqueue, &io->work);
@@ -511,7 +511,7 @@ static void kcryptd_queue_io(struct cryp

static int crypt_endio(struct bio *clone, unsigned int done, int error)
{
- struct crypt_io *io = clone->bi_private;
+ struct dm_crypt_io *io = clone->bi_private;
struct crypt_config *cc = io->target->private;
unsigned read_io = bio_data_dir(clone) == READ;

@@ -545,7 +545,7 @@ out:
return error;
}

-static void clone_init(struct crypt_io *io, struct bio *clone)
+static void clone_init(struct dm_crypt_io *io, struct bio *clone)
{
struct crypt_config *cc = io->target->private;

@@ -556,7 +556,7 @@ static void clone_init(struct crypt_io *
clone->bi_destructor = dm_crypt_bio_destructor;
}

-static void process_read(struct crypt_io *io)
+static void process_read(struct dm_crypt_io *io)
{
struct crypt_config *cc = io->target->private;
struct bio *base_bio = io->base_bio;
@@ -587,7 +587,7 @@ static void process_read(struct crypt_io
generic_make_request(clone);
}

-static void process_write(struct crypt_io *io)
+static void process_write(struct dm_crypt_io *io)
{
struct crypt_config *cc = io->target->private;
struct bio *base_bio = io->base_bio;
@@ -644,7 +644,7 @@ static void process_write(struct crypt_i
}
}

-static void process_read_endio(struct crypt_io *io)
+static void process_read_endio(struct dm_crypt_io *io)
{
struct crypt_config *cc = io->target->private;
struct convert_context ctx;
@@ -657,7 +657,7 @@ static void process_read_endio(struct cr

static void kcryptd_do_work(struct work_struct *work)
{
- struct crypt_io *io = container_of(work, struct crypt_io, work);
+ struct dm_crypt_io *io = container_of(work, struct dm_crypt_io, work);

if (io->post_process)
process_read_endio(io);
@@ -939,7 +939,7 @@ static int crypt_map(struct dm_target *t
union map_info *map_context)
{
struct crypt_config *cc = ti->private;
- struct crypt_io *io;
+ struct dm_crypt_io *io;

if (bio_barrier(bio))
return -EOPNOTSUPP;
@@ -1062,9 +1062,7 @@ static int __init dm_crypt_init(void)
{
int r;

- _crypt_io_pool = kmem_cache_create("dm-crypt_io",
- sizeof(struct crypt_io),
- 0, 0, NULL, NULL);
+ _crypt_io_pool = KMEM_CACHE(dm_crypt_io, 0);
if (!_crypt_io_pool)
return -ENOMEM;

Index: linux/drivers/md/dm-delay.c
===================================================================
--- linux.orig/drivers/md/dm-delay.c 2007-07-11 21:37:36.000000000 +0100
+++ linux/drivers/md/dm-delay.c 2007-07-11 21:37:38.000000000 +0100
@@ -37,7 +37,7 @@ struct delay_c {
unsigned writes;
};

-struct delay_info {
+struct dm_delay_info {
struct delay_c *context;
struct list_head list;
struct bio *bio;
@@ -80,7 +80,7 @@ static void flush_bios(struct bio *bio)

static struct bio *flush_delayed_bios(struct delay_c *dc, int flush_all)
{
- struct delay_info *delayed, *next;
+ struct dm_delay_info *delayed, *next;
unsigned long next_expires = 0;
int start_timer = 0;
DEFINE_BIO_LIST(flush_bios);
@@ -227,7 +227,7 @@ static void delay_dtr(struct dm_target *

static int delay_bio(struct delay_c *dc, int delay, struct bio *bio)
{
- struct delay_info *delayed;
+ struct dm_delay_info *delayed;
unsigned long expires = 0;

if (!delay || !atomic_read(&dc->may_delay))
@@ -338,10 +338,7 @@ static int __init dm_delay_init(void)
goto bad_queue;
}

- delayed_cache = kmem_cache_create("dm-delay",
- sizeof(struct delay_info),
- __alignof__(struct delay_info),
- 0, NULL, NULL);
+ delayed_cache = KMEM_CACHE(dm_delay_info, 0);
if (!delayed_cache) {
DMERR("Couldn't create delayed bio cache.");
goto bad_memcache;
Index: linux/drivers/md/dm-exception-store.c
===================================================================
--- linux.orig/drivers/md/dm-exception-store.c 2007-07-11 21:37:32.000000000 +0100
+++ linux/drivers/md/dm-exception-store.c 2007-07-11 21:37:38.000000000 +0100
@@ -127,7 +127,7 @@ struct pstore {
struct dm_io_client *io_client;
};

-static inline unsigned int sectors_to_pages(unsigned int sectors)
+static unsigned sectors_to_pages(unsigned sectors)
{
return sectors / (PAGE_SIZE >> 9);
}
@@ -393,7 +393,7 @@ static int read_exceptions(struct pstore
return 0;
}

-static inline struct pstore *get_info(struct exception_store *store)
+static struct pstore *get_info(struct exception_store *store)
{
return (struct pstore *) store->context;
}
@@ -480,7 +480,7 @@ static int persistent_read_metadata(stru
}

static int persistent_prepare(struct exception_store *store,
- struct exception *e)
+ struct dm_snap_exception *e)
{
struct pstore *ps = get_info(store);
uint32_t stride;
@@ -505,7 +505,7 @@ static int persistent_prepare(struct exc
}

static void persistent_commit(struct exception_store *store,
- struct exception *e,
+ struct dm_snap_exception *e,
void (*callback) (void *, int success),
void *callback_context)
{
@@ -616,7 +616,8 @@ static int transient_read_metadata(struc
return 0;
}

-static int transient_prepare(struct exception_store *store, struct exception *e)
+static int transient_prepare(struct exception_store *store,
+ struct dm_snap_exception *e)
{
struct transient_c *tc = (struct transient_c *) store->context;
sector_t size = get_dev_size(store->snap->cow->bdev);
@@ -631,9 +632,9 @@ static int transient_prepare(struct exce
}

static void transient_commit(struct exception_store *store,
- struct exception *e,
- void (*callback) (void *, int success),
- void *callback_context)
+ struct dm_snap_exception *e,
+ void (*callback) (void *, int success),
+ void *callback_context)
{
/* Just succeed */
callback(callback_context, 1);
Index: linux/drivers/md/dm-mpath.c
===================================================================
--- linux.orig/drivers/md/dm-mpath.c 2007-07-11 21:37:32.000000000 +0100
+++ linux/drivers/md/dm-mpath.c 2007-07-11 21:37:38.000000000 +0100
@@ -83,7 +83,7 @@ struct multipath {
struct work_struct trigger_event;

/*
- * We must use a mempool of mpath_io structs so that we
+ * We must use a mempool of dm_mpath_io structs so that we
* can resubmit bios on error.
*/
mempool_t *mpio_pool;
@@ -92,7 +92,7 @@ struct multipath {
/*
* Context information attached to each bio we process.
*/
-struct mpath_io {
+struct dm_mpath_io {
struct pgpath *pgpath;
struct dm_bio_details details;
};
@@ -122,7 +122,7 @@ static struct pgpath *alloc_pgpath(void)
return pgpath;
}

-static inline void free_pgpath(struct pgpath *pgpath)
+static void free_pgpath(struct pgpath *pgpath)
{
kfree(pgpath);
}
@@ -299,8 +299,8 @@ static int __must_push_back(struct multi
dm_noflush_suspending(m->ti));
}

-static int map_io(struct multipath *m, struct bio *bio, struct mpath_io *mpio,
- unsigned was_queued)
+static int map_io(struct multipath *m, struct bio *bio,
+ struct dm_mpath_io *mpio, unsigned was_queued)
{
int r = DM_MAPIO_REMAPPED;
unsigned long flags;
@@ -374,7 +374,7 @@ static void dispatch_queued_ios(struct m
int r;
unsigned long flags;
struct bio *bio = NULL, *next;
- struct mpath_io *mpio;
+ struct dm_mpath_io *mpio;
union map_info *info;

spin_lock_irqsave(&m->lock, flags);
@@ -795,7 +795,7 @@ static int multipath_map(struct dm_targe
union map_info *map_context)
{
int r;
- struct mpath_io *mpio;
+ struct dm_mpath_io *mpio;
struct multipath *m = (struct multipath *) ti->private;

if (bio_barrier(bio))
@@ -1014,7 +1014,7 @@ void dm_pg_init_complete(struct dm_path
* end_io handling
*/
static int do_end_io(struct multipath *m, struct bio *bio,
- int error, struct mpath_io *mpio)
+ int error, struct dm_mpath_io *mpio)
{
struct hw_handler *hwh = &m->hw_handler;
unsigned err_flags = MP_FAIL_PATH; /* Default behavior */
@@ -1075,8 +1075,8 @@ static int do_end_io(struct multipath *m
static int multipath_end_io(struct dm_target *ti, struct bio *bio,
int error, union map_info *map_context)
{
- struct multipath *m = (struct multipath *) ti->private;
- struct mpath_io *mpio = (struct mpath_io *) map_context->ptr;
+ struct multipath *m = ti->private;
+ struct dm_mpath_io *mpio = map_context->ptr;
struct pgpath *pgpath = mpio->pgpath;
struct path_selector *ps;
int r;
@@ -1346,8 +1346,7 @@ static int __init dm_multipath_init(void
int r;

/* allocate a slab for the dm_ios */
- _mpio_cache = kmem_cache_create("dm_mpath", sizeof(struct mpath_io),
- 0, 0, NULL, NULL);
+ _mpio_cache = KMEM_CACHE(dm_mpath_io, 0);
if (!_mpio_cache)
return -ENOMEM;

Index: linux/drivers/md/dm-snap.c
===================================================================
--- linux.orig/drivers/md/dm-snap.c 2007-07-11 21:37:32.000000000 +0100
+++ linux/drivers/md/dm-snap.c 2007-07-11 21:37:38.000000000 +0100
@@ -42,8 +42,8 @@
static struct workqueue_struct *ksnapd;
static void flush_queued_bios(struct work_struct *work);

-struct pending_exception {
- struct exception e;
+struct dm_snap_pending_exception {
+ struct dm_snap_exception e;

/*
* Origin buffers waiting for this to complete are held
@@ -63,7 +63,7 @@ struct pending_exception {
* group of pending_exceptions. It is always last to get freed.
* These fields get set up when writing to the origin.
*/
- struct pending_exception *primary_pe;
+ struct dm_snap_pending_exception *primary_pe;

/*
* Number of pending_exceptions processing this chunk.
@@ -137,7 +137,7 @@ static void exit_origin_hash(void)
kfree(_origins);
}

-static inline unsigned int origin_hash(struct block_device *bdev)
+static unsigned origin_hash(struct block_device *bdev)
{
return bdev->bd_dev & ORIGIN_MASK;
}
@@ -231,7 +231,7 @@ static int init_exception_table(struct e
static void exit_exception_table(struct exception_table *et, struct kmem_cache *mem)
{
struct list_head *slot;
- struct exception *ex, *next;
+ struct dm_snap_exception *ex, *next;
int i, size;

size = et->hash_mask + 1;
@@ -245,18 +245,19 @@ static void exit_exception_table(struct
vfree(et->table);
}

-static inline uint32_t exception_hash(struct exception_table *et, chunk_t chunk)
+static uint32_t exception_hash(struct exception_table *et, chunk_t chunk)
{
return chunk & et->hash_mask;
}

-static void insert_exception(struct exception_table *eh, struct exception *e)
+static void insert_exception(struct exception_table *eh,
+ struct dm_snap_exception *e)
{
struct list_head *l = &eh->table[exception_hash(eh, e->old_chunk)];
list_add(&e->hash_list, l);
}

-static inline void remove_exception(struct exception *e)
+static void remove_exception(struct dm_snap_exception *e)
{
list_del(&e->hash_list);
}
@@ -265,11 +266,11 @@ static inline void remove_exception(stru
* Return the exception data for a sector, or NULL if not
* remapped.
*/
-static struct exception *lookup_exception(struct exception_table *et,
- chunk_t chunk)
+static struct dm_snap_exception *lookup_exception(struct exception_table *et,
+ chunk_t chunk)
{
struct list_head *slot;
- struct exception *e;
+ struct dm_snap_exception *e;

slot = &et->table[exception_hash(et, chunk)];
list_for_each_entry (e, slot, hash_list)
@@ -279,9 +280,9 @@ static struct exception *lookup_exceptio
return NULL;
}

-static inline struct exception *alloc_exception(void)
+static struct dm_snap_exception *alloc_exception(void)
{
- struct exception *e;
+ struct dm_snap_exception *e;

e = kmem_cache_alloc(exception_cache, GFP_NOIO);
if (!e)
@@ -290,24 +291,24 @@ static inline struct exception *alloc_ex
return e;
}

-static inline void free_exception(struct exception *e)
+static void free_exception(struct dm_snap_exception *e)
{
kmem_cache_free(exception_cache, e);
}

-static inline struct pending_exception *alloc_pending_exception(void)
+static struct dm_snap_pending_exception *alloc_pending_exception(void)
{
return mempool_alloc(pending_pool, GFP_NOIO);
}

-static inline void free_pending_exception(struct pending_exception *pe)
+static void free_pending_exception(struct dm_snap_pending_exception *pe)
{
mempool_free(pe, pending_pool);
}

int dm_add_exception(struct dm_snapshot *s, chunk_t old, chunk_t new)
{
- struct exception *e;
+ struct dm_snap_exception *e;

e = alloc_exception();
if (!e)
@@ -334,7 +335,7 @@ static int calc_max_buckets(void)
/*
* Rounds a number down to a power of 2.
*/
-static inline uint32_t round_down(uint32_t n)
+static uint32_t round_down(uint32_t n)
{
while (n & (n - 1))
n &= (n - 1);
@@ -384,7 +385,7 @@ static int init_hash_tables(struct dm_sn
* Round a number up to the nearest 'size' boundary. size must
* be a power of 2.
*/
-static inline ulong round_up(ulong n, ulong size)
+static ulong round_up(ulong n, ulong size)
{
size--;
return (n + size) & ~size;
@@ -577,7 +578,7 @@ static void __free_exceptions(struct dm_

static void snapshot_dtr(struct dm_target *ti)
{
- struct dm_snapshot *s = (struct dm_snapshot *) ti->private;
+ struct dm_snapshot *s = ti->private;

flush_workqueue(ksnapd);

@@ -655,14 +656,14 @@ static void __invalidate_snapshot(struct
dm_table_event(s->table);
}

-static void get_pending_exception(struct pending_exception *pe)
+static void get_pending_exception(struct dm_snap_pending_exception *pe)
{
atomic_inc(&pe->ref_count);
}

-static struct bio *put_pending_exception(struct pending_exception *pe)
+static struct bio *put_pending_exception(struct dm_snap_pending_exception *pe)
{
- struct pending_exception *primary_pe;
+ struct dm_snap_pending_exception *primary_pe;
struct bio *origin_bios = NULL;

primary_pe = pe->primary_pe;
@@ -692,9 +693,9 @@ static struct bio *put_pending_exception
return origin_bios;
}

-static void pending_complete(struct pending_exception *pe, int success)
+static void pending_complete(struct dm_snap_pending_exception *pe, int success)
{
- struct exception *e;
+ struct dm_snap_exception *e;
struct dm_snapshot *s = pe->snap;
struct bio *origin_bios = NULL;
struct bio *snapshot_bios = NULL;
@@ -748,7 +749,8 @@ static void pending_complete(struct pend

static void commit_callback(void *context, int success)
{
- struct pending_exception *pe = (struct pending_exception *) context;
+ struct dm_snap_pending_exception *pe = context;
+
pending_complete(pe, success);
}

@@ -758,7 +760,7 @@ static void commit_callback(void *contex
*/
static void copy_callback(int read_err, unsigned int write_err, void *context)
{
- struct pending_exception *pe = (struct pending_exception *) context;
+ struct dm_snap_pending_exception *pe = context;
struct dm_snapshot *s = pe->snap;

if (read_err || write_err)
@@ -773,7 +775,7 @@ static void copy_callback(int read_err,
/*
* Dispatches the copy operation to kcopyd.
*/
-static void start_copy(struct pending_exception *pe)
+static void start_copy(struct dm_snap_pending_exception *pe)
{
struct dm_snapshot *s = pe->snap;
struct io_region src, dest;
@@ -803,11 +805,11 @@ static void start_copy(struct pending_ex
* NOTE: a write lock must be held on snap->lock before calling
* this.
*/
-static struct pending_exception *
+static struct dm_snap_pending_exception *
__find_pending_exception(struct dm_snapshot *s, struct bio *bio)
{
- struct exception *e;
- struct pending_exception *pe;
+ struct dm_snap_exception *e;
+ struct dm_snap_pending_exception *pe;
chunk_t chunk = sector_to_chunk(s, bio->bi_sector);

/*
@@ -816,7 +818,7 @@ __find_pending_exception(struct dm_snaps
e = lookup_exception(&s->pending, chunk);
if (e) {
/* cast the exception to a pending exception */
- pe = container_of(e, struct pending_exception, e);
+ pe = container_of(e, struct dm_snap_pending_exception, e);
goto out;
}

@@ -836,7 +838,7 @@ __find_pending_exception(struct dm_snaps
e = lookup_exception(&s->pending, chunk);
if (e) {
free_pending_exception(pe);
- pe = container_of(e, struct pending_exception, e);
+ pe = container_of(e, struct dm_snap_pending_exception, e);
goto out;
}

@@ -860,8 +862,8 @@ __find_pending_exception(struct dm_snaps
return pe;
}

-static inline void remap_exception(struct dm_snapshot *s, struct exception *e,
- struct bio *bio)
+static void remap_exception(struct dm_snapshot *s, struct dm_snap_exception *e,
+ struct bio *bio)
{
bio->bi_bdev = s->cow->bdev;
bio->bi_sector = chunk_to_sector(s, e->new_chunk) +
@@ -871,11 +873,11 @@ static inline void remap_exception(struc
static int snapshot_map(struct dm_target *ti, struct bio *bio,
union map_info *map_context)
{
- struct exception *e;
- struct dm_snapshot *s = (struct dm_snapshot *) ti->private;
+ struct dm_snap_exception *e;
+ struct dm_snapshot *s = ti->private;
int r = DM_MAPIO_REMAPPED;
chunk_t chunk;
- struct pending_exception *pe = NULL;
+ struct dm_snap_pending_exception *pe = NULL;

chunk = sector_to_chunk(s, bio->bi_sector);

@@ -945,7 +947,7 @@ static int snapshot_map(struct dm_target

static void snapshot_resume(struct dm_target *ti)
{
- struct dm_snapshot *s = (struct dm_snapshot *) ti->private;
+ struct dm_snapshot *s = ti->private;

down_write(&s->lock);
s->active = 1;
@@ -955,7 +957,7 @@ static void snapshot_resume(struct dm_ta
static int snapshot_status(struct dm_target *ti, status_type_t type,
char *result, unsigned int maxlen)
{
- struct dm_snapshot *snap = (struct dm_snapshot *) ti->private;
+ struct dm_snapshot *snap = ti->private;

switch (type) {
case STATUSTYPE_INFO:
@@ -999,8 +1001,8 @@ static int __origin_write(struct list_he
{
int r = DM_MAPIO_REMAPPED, first = 0;
struct dm_snapshot *snap;
- struct exception *e;
- struct pending_exception *pe, *next_pe, *primary_pe = NULL;
+ struct dm_snap_exception *e;
+ struct dm_snap_pending_exception *pe, *next_pe, *primary_pe = NULL;
chunk_t chunk;
LIST_HEAD(pe_queue);

@@ -1147,14 +1149,14 @@ static int origin_ctr(struct dm_target *

static void origin_dtr(struct dm_target *ti)
{
- struct dm_dev *dev = (struct dm_dev *) ti->private;
+ struct dm_dev *dev = ti->private;
dm_put_device(ti, dev);
}

static int origin_map(struct dm_target *ti, struct bio *bio,
union map_info *map_context)
{
- struct dm_dev *dev = (struct dm_dev *) ti->private;
+ struct dm_dev *dev = ti->private;
bio->bi_bdev = dev->bdev;

if (unlikely(bio_barrier(bio)))
@@ -1172,7 +1174,7 @@ static int origin_map(struct dm_target *
*/
static void origin_resume(struct dm_target *ti)
{
- struct dm_dev *dev = (struct dm_dev *) ti->private;
+ struct dm_dev *dev = ti->private;
struct dm_snapshot *snap;
struct origin *o;
chunk_t chunk_size = 0;
@@ -1190,7 +1192,7 @@ static void origin_resume(struct dm_targ
static int origin_status(struct dm_target *ti, status_type_t type, char *result,
unsigned int maxlen)
{
- struct dm_dev *dev = (struct dm_dev *) ti->private;
+ struct dm_dev *dev = ti->private;

switch (type) {
case STATUSTYPE_INFO:
@@ -1249,21 +1251,14 @@ static int __init dm_snapshot_init(void)
goto bad2;
}

- exception_cache = kmem_cache_create("dm-snapshot-ex",
- sizeof(struct exception),
- __alignof__(struct exception),
- 0, NULL, NULL);
+ exception_cache = KMEM_CACHE(dm_snap_exception, 0);
if (!exception_cache) {
DMERR("Couldn't create exception cache.");
r = -ENOMEM;
goto bad3;
}

- pending_cache =
- kmem_cache_create("dm-snapshot-in",
- sizeof(struct pending_exception),
- __alignof__(struct pending_exception),
- 0, NULL, NULL);
+ pending_cache = KMEM_CACHE(dm_snap_pending_exception, 0);
if (!pending_cache) {
DMERR("Couldn't create pending cache.");
r = -ENOMEM;
Index: linux/drivers/md/dm-snap.h
===================================================================
--- linux.orig/drivers/md/dm-snap.h 2007-07-11 21:37:32.000000000 +0100
+++ linux/drivers/md/dm-snap.h 2007-07-11 21:37:38.000000000 +0100
@@ -30,7 +30,7 @@ typedef sector_t chunk_t;
* An exception is used where an old chunk of data has been
* replaced by a new one.
*/
-struct exception {
+struct dm_snap_exception {
struct list_head hash_list;

chunk_t old_chunk;
@@ -58,13 +58,13 @@ struct exception_store {
* Find somewhere to store the next exception.
*/
int (*prepare_exception) (struct exception_store *store,
- struct exception *e);
+ struct dm_snap_exception *e);

/*
* Update the metadata with this exception.
*/
void (*commit_exception) (struct exception_store *store,
- struct exception *e,
+ struct dm_snap_exception *e,
void (*callback) (void *, int success),
void *callback_context);

Index: linux/drivers/md/dm.c
===================================================================
--- linux.orig/drivers/md/dm.c 2007-07-11 21:37:32.000000000 +0100
+++ linux/drivers/md/dm.c 2007-07-11 21:37:38.000000000 +0100
@@ -45,7 +45,7 @@ struct dm_io {
* One of these is allocated per target within a bio. Hopefully
* this will be simplified out one day.
*/
-struct target_io {
+struct dm_target_io {
struct dm_io *io;
struct dm_target *ti;
union map_info info;
@@ -54,7 +54,7 @@ struct target_io {
union map_info *dm_get_mapinfo(struct bio *bio)
{
if (bio && bio->bi_private)
- return &((struct target_io *)bio->bi_private)->info;
+ return &((struct dm_target_io *)bio->bi_private)->info;
return NULL;
}

@@ -132,14 +132,12 @@ static int __init local_init(void)
int r;

/* allocate a slab for the dm_ios */
- _io_cache = kmem_cache_create("dm_io",
- sizeof(struct dm_io), 0, 0, NULL, NULL);
+ _io_cache = KMEM_CACHE(dm_io, 0);
if (!_io_cache)
return -ENOMEM;

/* allocate a slab for the target ios */
- _tio_cache = kmem_cache_create("dm_tio", sizeof(struct target_io),
- 0, 0, NULL, NULL);
+ _tio_cache = KMEM_CACHE(dm_target_io, 0);
if (!_tio_cache) {
kmem_cache_destroy(_io_cache);
return -ENOMEM;
@@ -325,22 +323,22 @@ out:
return r;
}

-static inline struct dm_io *alloc_io(struct mapped_device *md)
+static struct dm_io *alloc_io(struct mapped_device *md)
{
return mempool_alloc(md->io_pool, GFP_NOIO);
}

-static inline void free_io(struct mapped_device *md, struct dm_io *io)
+static void free_io(struct mapped_device *md, struct dm_io *io)
{
mempool_free(io, md->io_pool);
}

-static inline struct target_io *alloc_tio(struct mapped_device *md)
+static struct dm_target_io *alloc_tio(struct mapped_device *md)
{
return mempool_alloc(md->tio_pool, GFP_NOIO);
}

-static inline void free_tio(struct mapped_device *md, struct target_io *tio)
+static void free_tio(struct mapped_device *md, struct dm_target_io *tio)
{
mempool_free(tio, md->tio_pool);
}
@@ -498,7 +496,7 @@ static void dec_pending(struct dm_io *io
static int clone_endio(struct bio *bio, unsigned int done, int error)
{
int r = 0;
- struct target_io *tio = bio->bi_private;
+ struct dm_target_io *tio = bio->bi_private;
struct mapped_device *md = tio->io->md;
dm_endio_fn endio = tio->ti->type->end_io;

@@ -558,7 +556,7 @@ static sector_t max_io_len(struct mapped
}

static void __map_bio(struct dm_target *ti, struct bio *clone,
- struct target_io *tio)
+ struct dm_target_io *tio)
{
int r;
sector_t sector;
@@ -672,7 +670,7 @@ static void __clone_and_map(struct clone
struct bio *clone, *bio = ci->bio;
struct dm_target *ti = dm_table_find_target(ci->map, ci->sector);
sector_t len = 0, max = max_io_len(ci->md, ci->sector, ti);
- struct target_io *tio;
+ struct dm_target_io *tio;

/*
* Allocate a target io object.
Index: linux/drivers/md/kcopyd.c
===================================================================
--- linux.orig/drivers/md/kcopyd.c 2007-07-11 21:37:32.000000000 +0100
+++ linux/drivers/md/kcopyd.c 2007-07-11 21:37:38.000000000 +0100
@@ -29,7 +29,7 @@
static struct workqueue_struct *_kcopyd_wq;
static struct work_struct _kcopyd_work;

-static inline void wake(void)
+static void wake(void)
{
queue_work(_kcopyd_wq, &_kcopyd_work);
}
@@ -226,10 +226,7 @@ static LIST_HEAD(_pages_jobs);

static int jobs_init(void)
{
- _job_cache = kmem_cache_create("kcopyd-jobs",
- sizeof(struct kcopyd_job),
- __alignof__(struct kcopyd_job),
- 0, NULL, NULL);
+ _job_cache = KMEM_CACHE(kcopyd_job, 0);
if (!_job_cache)
return -ENOMEM;

@@ -258,7 +255,7 @@ static void jobs_exit(void)
* Functions to push and pop a job onto the head of a given job
* list.
*/
-static inline struct kcopyd_job *pop(struct list_head *jobs)
+static struct kcopyd_job *pop(struct list_head *jobs)
{
struct kcopyd_job *job = NULL;
unsigned long flags;
@@ -274,7 +271,7 @@ static inline struct kcopyd_job *pop(str
return job;
}

-static inline void push(struct list_head *jobs, struct kcopyd_job *job)
+static void push(struct list_head *jobs, struct kcopyd_job *job)
{
unsigned long flags;

-
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