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nfsd: pass pointer to expkey cache down to stack wherever possible. 

This cache will be per-net soon. And it's easier to get the pointer to desired
per-net instance only once and then pass it down instead of discovering it in
every place were required.

Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
Stanislav Kinsbursky 2012-03-28 19:09:50 +04:00 committed by J. Bruce Fields
parent 83e0ed700d
commit c89172e36e
1 changed files with 16 additions and 16 deletions
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32
fs/nfsd/export.c
View File

@ -71,9 +71,9 @@ static int expkey_upcall(struct cache_detail *cd, struct cache_head *h)
return sunrpc_cache_pipe_upcall(cd, h, expkey_request);
}
static struct svc_expkey *svc_expkey_update(struct svc_expkey *new, struct svc_expkey *old);
static struct svc_expkey *svc_expkey_lookup(struct svc_expkey *);
static struct cache_detail svc_expkey_cache;
static struct svc_expkey *svc_expkey_update(struct cache_detail *cd, struct svc_expkey *new,
struct svc_expkey *old);
static struct svc_expkey *svc_expkey_lookup(struct cache_detail *cd, struct svc_expkey *);
static int expkey_parse(struct cache_detail *cd, char *mesg, int mlen)
{
@ -131,7 +131,7 @@ static int expkey_parse(struct cache_detail *cd, char *mesg, int mlen)
key.ek_fsidtype = fsidtype;
memcpy(key.ek_fsid, buf, len);
ek = svc_expkey_lookup(&key);
ek = svc_expkey_lookup(cd, &key);
err = -ENOMEM;
if (!ek)
goto out;
@ -145,7 +145,7 @@ static int expkey_parse(struct cache_detail *cd, char *mesg, int mlen)
err = 0;
if (len == 0) {
set_bit(CACHE_NEGATIVE, &key.h.flags);
ek = svc_expkey_update(&key, ek);
ek = svc_expkey_update(cd, &key, ek);
if (!ek)
err = -ENOMEM;
} else {
@ -155,7 +155,7 @@ static int expkey_parse(struct cache_detail *cd, char *mesg, int mlen)
dprintk("Found the path %s\n", buf);
ek = svc_expkey_update(&key, ek);
ek = svc_expkey_update(cd, &key, ek);
if (!ek)
err = -ENOMEM;
path_put(&key.ek_path);
@ -268,13 +268,12 @@ svc_expkey_hash(struct svc_expkey *item)
}
static struct svc_expkey *
svc_expkey_lookup(struct svc_expkey *item)
svc_expkey_lookup(struct cache_detail *cd, struct svc_expkey *item)
{
struct cache_head *ch;
int hash = svc_expkey_hash(item);
ch = sunrpc_cache_lookup(&svc_expkey_cache, &item->h,
hash);
ch = sunrpc_cache_lookup(cd, &item->h, hash);
if (ch)
return container_of(ch, struct svc_expkey, h);
else
@ -282,13 +281,13 @@ svc_expkey_lookup(struct svc_expkey *item)
}
static struct svc_expkey *
svc_expkey_update(struct svc_expkey *new, struct svc_expkey *old)
svc_expkey_update(struct cache_detail *cd, struct svc_expkey *new,
struct svc_expkey *old)
{
struct cache_head *ch;
int hash = svc_expkey_hash(new);
ch = sunrpc_cache_update(&svc_expkey_cache, &new->h,
&old->h, hash);
ch = sunrpc_cache_update(cd, &new->h, &old->h, hash);
if (ch)
return container_of(ch, struct svc_expkey, h);
else
@ -763,7 +762,8 @@ svc_export_update(struct svc_export *new, struct svc_export *old)
static struct svc_expkey *
exp_find_key(svc_client *clp, int fsid_type, u32 *fsidv, struct cache_req *reqp)
exp_find_key(struct cache_detail *cd, svc_client *clp, int fsid_type,
u32 *fsidv, struct cache_req *reqp)
{
struct svc_expkey key, *ek;
int err;
@ -775,10 +775,10 @@ exp_find_key(svc_client *clp, int fsid_type, u32 *fsidv, struct cache_req *reqp)
key.ek_fsidtype = fsid_type;
memcpy(key.ek_fsid, fsidv, key_len(fsid_type));
ek = svc_expkey_lookup(&key);
ek = svc_expkey_lookup(cd, &key);
if (ek == NULL)
return ERR_PTR(-ENOMEM);
err = cache_check(&svc_expkey_cache, &ek->h, reqp);
err = cache_check(cd, &ek->h, reqp);
if (err)
return ERR_PTR(err);
return ek;
@ -879,7 +879,7 @@ static struct svc_export *exp_find(struct auth_domain *clp, int fsid_type,
u32 *fsidv, struct cache_req *reqp)
{
struct svc_export *exp;
struct svc_expkey *ek = exp_find_key(clp, fsid_type, fsidv, reqp);
struct svc_expkey *ek = exp_find_key(&svc_expkey_cache, clp, fsid_type, fsidv, reqp);
if (IS_ERR(ek))
return ERR_CAST(ek);