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staging: zcache: introduce get_zcache_client 

Introduce get_zcache_client to remove the common code

Acked-by: Seth Jennings <sjenning@linux.vnet.ibm.com>
Signed-off-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Xiao Guangrong 2012-06-26 16:52:17 +08:00 committed by Greg Kroah-Hartman
parent b71f3bcc5a
commit 08b0b50048
1 changed files with 23 additions and 23 deletions
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46
drivers/staging/zcache/zcache-main.c
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@ -74,6 +74,17 @@ static inline uint16_t get_client_id_from_client(struct zcache_client *cli)
return cli - &zcache_clients[0];
}
static struct zcache_client *get_zcache_client(uint16_t cli_id)
{
if (cli_id == LOCAL_CLIENT)
return &zcache_host;
if ((unsigned int)cli_id < MAX_CLIENTS)
return &zcache_clients[cli_id];
return NULL;
}
static inline bool is_local_client(struct zcache_client *cli)
{
return cli == &zcache_host;
@ -935,15 +946,9 @@ static struct tmem_pool *zcache_get_pool_by_id(uint16_t cli_id, uint16_t poolid)
struct tmem_pool *pool = NULL;
struct zcache_client *cli = NULL;
if (cli_id == LOCAL_CLIENT)
cli = &zcache_host;
else {
if (cli_id >= MAX_CLIENTS)
goto out;
cli = &zcache_clients[cli_id];
if (cli == NULL)
goto out;
}
cli = get_zcache_client(cli_id);
if (!cli)
goto out;
atomic_inc(&cli->refcount);
pool = idr_find(&cli->tmem_pools, poolid);
@ -966,13 +971,11 @@ static void zcache_put_pool(struct tmem_pool *pool)
int zcache_new_client(uint16_t cli_id)
{
struct zcache_client *cli = NULL;
struct zcache_client *cli;
int ret = -1;
if (cli_id == LOCAL_CLIENT)
cli = &zcache_host;
else if ((unsigned int)cli_id < MAX_CLIENTS)
cli = &zcache_clients[cli_id];
cli = get_zcache_client(cli_id);
if (cli == NULL)
goto out;
if (cli->allocated)
@ -1649,17 +1652,16 @@ static int zcache_flush_object(int cli_id, int pool_id,
static int zcache_destroy_pool(int cli_id, int pool_id)
{
struct tmem_pool *pool = NULL;
struct zcache_client *cli = NULL;
struct zcache_client *cli;
int ret = -1;
if (pool_id < 0)
goto out;
if (cli_id == LOCAL_CLIENT)
cli = &zcache_host;
else if ((unsigned int)cli_id < MAX_CLIENTS)
cli = &zcache_clients[cli_id];
cli = get_zcache_client(cli_id);
if (cli == NULL)
goto out;
atomic_inc(&cli->refcount);
pool = idr_find(&cli->tmem_pools, pool_id);
if (pool == NULL)
@ -1686,12 +1688,10 @@ static int zcache_new_pool(uint16_t cli_id, uint32_t flags)
struct zcache_client *cli = NULL;
int r;
if (cli_id == LOCAL_CLIENT)
cli = &zcache_host;
else if ((unsigned int)cli_id < MAX_CLIENTS)
cli = &zcache_clients[cli_id];
cli = get_zcache_client(cli_id);
if (cli == NULL)
goto out;
atomic_inc(&cli->refcount);
pool = kmalloc(sizeof(struct tmem_pool), GFP_ATOMIC);
if (pool == NULL) {