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NLM: Remove "create" argument from nsm_find()

Browse source 
Clean up: nsm_find() now has only one caller, and that caller
unconditionally sets the @create argument. Thus the @create
argument is no longer needed.

Since nsm_find() now has a more specific purpose, pick a more
appropriate name for it.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
This commit is contained in:
Chuck Lever 2008-12-05 19:04:01 -05:00 committed by J. Bruce Fields
parent 8c7378fd2a
commit 92fd91b998
3 changed files with 14 additions and 19 deletions
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4
fs/lockd/host.c
View file

@ -159,8 +159,8 @@ static struct nlm_host *nlm_lookup_host(struct nlm_lookup_host_info *ni)
atomic_inc(&nsm->sm_count);
else {
host = NULL;
nsm = nsm_find(ni->sap, ni->salen,
ni->hostname, ni->hostname_len, 1);
nsm = nsm_get_handle(ni->sap, ni->salen,
ni->hostname, ni->hostname_len);
if (!nsm) {
dprintk("lockd: nlm_lookup_host failed; "
"no nsm handle\n");

23
fs/lockd/mon.c
View file

@ -240,24 +240,22 @@ static void nsm_init_private(struct nsm_handle *nsm)
}
/**
* nsm_find - Find or create a cached nsm_handle
* nsm_get_handle - Find or create a cached nsm_handle
* @sap: pointer to socket address of handle to find
* @salen: length of socket address
* @hostname: pointer to C string containing hostname to find
* @hostname_len: length of C string
* @create: one means create new handle if not found in cache
*
* Behavior is modulated by the global nsm_use_hostnames variable
* and by the @create argument.
* Behavior is modulated by the global nsm_use_hostnames variable.
*
* Returns a cached nsm_handle after bumping its ref count, or if
* @create is set, returns a fresh nsm_handle if a handle that
* matches @sap and/or @hostname cannot be found in the handle cache.
* Returns NULL if an error occurs.
* Returns a cached nsm_handle after bumping its ref count, or
* returns a fresh nsm_handle if a handle that matches @sap and/or
* @hostname cannot be found in the handle cache. Returns NULL if
* an error occurs.
*/
struct nsm_handle *nsm_find(const struct sockaddr *sap, const size_t salen,
const char *hostname, const size_t hostname_len,
const int create)
struct nsm_handle *nsm_get_handle(const struct sockaddr *sap,
const size_t salen, const char *hostname,
const size_t hostname_len)
{
struct nsm_handle *nsm = NULL;
struct nsm_handle *pos;
@ -297,9 +295,6 @@ retry:
}
spin_unlock(&nsm_lock);
if (!create)
return NULL;
nsm = kzalloc(sizeof(*nsm) + hostname_len + 1, GFP_KERNEL);
if (nsm == NULL)
return NULL;

6
include/linux/lockd/lockd.h
View file

@ -247,10 +247,10 @@ void nlm_host_rebooted(const struct nlm_reboot *);
int nsm_monitor(const struct nlm_host *host);
void nsm_unmonitor(const struct nlm_host *host);
struct nsm_handle *nsm_find(const struct sockaddr *sap, const size_t salen,
struct nsm_handle *nsm_get_handle(const struct sockaddr *sap,
const size_t salen,
const char *hostname,
const size_t hostname_len,
const int create);
const size_t hostname_len);
struct nsm_handle *nsm_reboot_lookup(const struct nlm_reboot *info);
void nsm_release(struct nsm_handle *nsm);