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dm: use kmem_cache macro

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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).

Acked-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Alasdair G Kergon
2007-07-12 17:26:32 +01:00
committed by Linus Torvalds
parent 79e15ae424
commit 028867ac28
8 changed files with 106 additions and 121 deletions
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23
drivers/md/dm-mpath.c
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@@ -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 multipath *m)
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 multipath *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_target *ti, struct bio *bio,
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 *path, unsigned err_flags)
* 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, struct bio *bio,
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;