[PATCH 003 of 14] knfsd: Get rid of 'inplace' sunrpc caches
From: NeilBrown
Date: Thu Mar 09 2006 - 01:50:57 EST
These were an unnecessary wart.
Also only have one 'DefineSimpleCache..' instead of two.
Signed-off-by: Neil Brown <neilb@xxxxxxx>
### Diffstat output
./fs/nfsd/export.c | 4 ++--
./fs/nfsd/nfs4idmap.c | 10 ++--------
./include/linux/sunrpc/cache.h | 28 +++++++++++-----------------
./net/sunrpc/auth_gss/svcauth_gss.c | 4 ++--
./net/sunrpc/svcauth_unix.c | 2 +-
5 files changed, 18 insertions(+), 30 deletions(-)
diff ./fs/nfsd/export.c~current~ ./fs/nfsd/export.c
--- ./fs/nfsd/export.c~current~ 2006-03-09 17:15:13.000000000 +1100
+++ ./fs/nfsd/export.c 2006-03-09 17:15:13.000000000 +1100
@@ -250,7 +250,7 @@ static inline void svc_expkey_update(str
new->ek_dentry = dget(item->ek_dentry);
}
-static DefineSimpleCacheLookup(svc_expkey,0) /* no inplace updates */
+static DefineSimpleCacheLookup(svc_expkey, svc_expkey)
#define EXPORT_HASHBITS 8
#define EXPORT_HASHMAX (1<< EXPORT_HASHBITS)
@@ -482,7 +482,7 @@ static inline void svc_export_update(str
new->ex_fsid = item->ex_fsid;
}
-static DefineSimpleCacheLookup(svc_export,1) /* allow inplace updates */
+static DefineSimpleCacheLookup(svc_export, svc_export)
struct svc_expkey *
diff ./fs/nfsd/nfs4idmap.c~current~ ./fs/nfsd/nfs4idmap.c
--- ./fs/nfsd/nfs4idmap.c~current~ 2006-03-09 17:12:58.000000000 +1100
+++ ./fs/nfsd/nfs4idmap.c 2006-03-09 17:15:13.000000000 +1100
@@ -76,12 +76,6 @@ struct ent {
char authname[IDMAP_NAMESZ];
};
-#define DefineSimpleCacheLookupMap(STRUCT, FUNC) \
- DefineCacheLookup(struct STRUCT, h, FUNC##_lookup, \
- (struct STRUCT *item, int set), /*no setup */, \
- & FUNC##_cache, FUNC##_hash(item), FUNC##_match(item, tmp), \
- STRUCT##_init(new, item), STRUCT##_update(tmp, item), 0)
-
/* Common entry handling */
#define ENT_HASHBITS 8
@@ -264,7 +258,7 @@ out:
return error;
}
-static DefineSimpleCacheLookupMap(ent, idtoname);
+static DefineSimpleCacheLookup(ent, idtoname);
/*
* Name -> ID cache
@@ -390,7 +384,7 @@ out:
return (error);
}
-static DefineSimpleCacheLookupMap(ent, nametoid);
+static DefineSimpleCacheLookup(ent, nametoid);
/*
* Exported API
diff ./include/linux/sunrpc/cache.h~current~ ./include/linux/sunrpc/cache.h
--- ./include/linux/sunrpc/cache.h~current~ 2006-03-09 17:12:58.000000000 +1100
+++ ./include/linux/sunrpc/cache.h 2006-03-09 17:15:13.000000000 +1100
@@ -133,14 +133,11 @@ struct cache_deferred_req {
* If "set" == 0 :
* If an entry is found, it is returned
* If no entry is found, a new non-VALID entry is created.
- * If "set" == 1 and INPLACE == 0 :
+ * If "set" == 1 :
* If no entry is found a new one is inserted with data from "template"
* If a non-CACHE_VALID entry is found, it is updated from template using UPDATE
* If a CACHE_VALID entry is found, a new entry is swapped in with data
* from "template"
- * If set == 1, and INPLACE == 1 :
- * As above, except that if a CACHE_VALID entry is found, we UPDATE in place
- * instead of swapping in a new entry.
*
* If the passed handle has the CACHE_NEGATIVE flag set, then UPDATE is not
* run but insteead CACHE_NEGATIVE is set in any new item.
@@ -159,13 +156,8 @@ struct cache_deferred_req {
* TEST tests if "tmp" matches "item"
* INIT copies key information from "item" to "new"
* UPDATE copies content information from "item" to "tmp"
- * INPLACE is true if updates can happen inplace rather than allocating a new structure
- *
- * WARNING: any substantial changes to this must be reflected in
- * net/sunrpc/svcauth.c(auth_domain_lookup)
- * which is a similar routine that is open-coded.
*/
-#define DefineCacheLookup(RTN,MEMBER,FNAME,ARGS,SETUP,DETAIL,HASHFN,TEST,INIT,UPDATE,INPLACE) \
+#define DefineCacheLookup(RTN,MEMBER,FNAME,ARGS,SETUP,DETAIL,HASHFN,TEST,INIT,UPDATE) \
RTN *FNAME ARGS \
{ \
RTN *tmp, *new=NULL; \
@@ -179,13 +171,13 @@ RTN *FNAME ARGS \
tmp = container_of(*hp, RTN, MEMBER); \
if (TEST) { /* found a match */ \
\
- if (set && !INPLACE && test_bit(CACHE_VALID, &tmp->MEMBER.flags) && !new) \
+ if (set && test_bit(CACHE_VALID, &tmp->MEMBER.flags) && !new) \
break; \
\
if (new) \
{INIT;} \
if (set) { \
- if (!INPLACE && test_bit(CACHE_VALID, &tmp->MEMBER.flags))\
+ if (test_bit(CACHE_VALID, &tmp->MEMBER.flags))\
{ /* need to swap in new */ \
RTN *t2; \
\
@@ -206,7 +198,7 @@ RTN *FNAME ARGS \
else read_unlock(&(DETAIL)->hash_lock); \
if (set) \
cache_fresh(DETAIL, &tmp->MEMBER, item->MEMBER.expiry_time); \
- if (set && !INPLACE && new) cache_fresh(DETAIL, &new->MEMBER, 0); \
+ if (set && new) cache_fresh(DETAIL, &new->MEMBER, 0); \
if (new) (DETAIL)->cache_put(&new->MEMBER, DETAIL); \
return tmp; \
} \
@@ -239,10 +231,12 @@ RTN *FNAME ARGS \
return NULL; \
}
-#define DefineSimpleCacheLookup(STRUCT,INPLACE) \
- DefineCacheLookup(struct STRUCT, h, STRUCT##_lookup, (struct STRUCT *item, int set), /*no setup */, \
- & STRUCT##_cache, STRUCT##_hash(item), STRUCT##_match(item, tmp),\
- STRUCT##_init(new, item), STRUCT##_update(tmp, item),INPLACE)
+#define DefineSimpleCacheLookup(STRUCT, FUNC) \
+ DefineCacheLookup(struct STRUCT, h, FUNC##_lookup, \
+ (struct STRUCT *item, int set), /*no setup */, \
+ & FUNC##_cache, FUNC##_hash(item), FUNC##_match(item, tmp), \
+ STRUCT##_init(new, item), STRUCT##_update(tmp, item))
+
#define cache_for_each(pos, detail, index, member) \
for (({read_lock(&(detail)->hash_lock); index = (detail)->hash_size;}) ; \
diff ./net/sunrpc/auth_gss/svcauth_gss.c~current~ ./net/sunrpc/auth_gss/svcauth_gss.c
--- ./net/sunrpc/auth_gss/svcauth_gss.c~current~ 2006-03-09 17:13:54.000000000 +1100
+++ ./net/sunrpc/auth_gss/svcauth_gss.c 2006-03-09 17:15:13.000000000 +1100
@@ -259,7 +259,7 @@ static struct cache_detail rsi_cache = {
.cache_parse = rsi_parse,
};
-static DefineSimpleCacheLookup(rsi, 0)
+static DefineSimpleCacheLookup(rsi, rsi)
/*
* The rpcsec_context cache is used to store a context that is
@@ -446,7 +446,7 @@ static struct cache_detail rsc_cache = {
.cache_parse = rsc_parse,
};
-static DefineSimpleCacheLookup(rsc, 0);
+static DefineSimpleCacheLookup(rsc, rsc);
static struct rsc *
gss_svc_searchbyctx(struct xdr_netobj *handle)
diff ./net/sunrpc/svcauth_unix.c~current~ ./net/sunrpc/svcauth_unix.c
--- ./net/sunrpc/svcauth_unix.c~current~ 2006-03-09 17:13:01.000000000 +1100
+++ ./net/sunrpc/svcauth_unix.c 2006-03-09 17:15:13.000000000 +1100
@@ -258,7 +258,7 @@ struct cache_detail ip_map_cache = {
.cache_show = ip_map_show,
};
-static DefineSimpleCacheLookup(ip_map, 0)
+static DefineSimpleCacheLookup(ip_map, ip_map)
int auth_unix_add_addr(struct in_addr addr, struct auth_domain *dom)
-
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