diff options
| author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2009-08-09 15:14:29 -0400 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2009-08-09 15:14:29 -0400 |
| commit | bc74b4f5e63a09fb78e245794a0de1e5a2716bbe (patch) | |
| tree | 5e96e63fd69303162456549f12bff5f9b2ee2a22 /include/linux/sunrpc | |
| parent | da77005f0d64486cd760f43d9b7cc2379262a363 (diff) | |
SUNRPC: Allow the cache_detail to specify alternative upcall mechanisms
For events that are rare, such as referral DNS lookups, it makes limited
sense to have a daemon constantly listening for upcalls on a channel. An
alternative in those cases might simply be to run the app that fills the
cache using call_usermodehelper_exec() and friends.
The following patch allows the cache_detail to specify alternative upcall
mechanisms for these particular cases.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'include/linux/sunrpc')
| -rw-r--r-- | include/linux/sunrpc/cache.h | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/include/linux/sunrpc/cache.h b/include/linux/sunrpc/cache.h index 3d1fad22185..23ee25981a0 100644 --- a/include/linux/sunrpc/cache.h +++ b/include/linux/sunrpc/cache.h @@ -70,9 +70,9 @@ struct cache_detail { char *name; void (*cache_put)(struct kref *); - void (*cache_request)(struct cache_detail *cd, - struct cache_head *h, - char **bpp, int *blen); + int (*cache_upcall)(struct cache_detail *, + struct cache_head *); + int (*cache_parse)(struct cache_detail *, char *buf, int len); @@ -135,6 +135,13 @@ extern struct cache_head * sunrpc_cache_update(struct cache_detail *detail, struct cache_head *new, struct cache_head *old, int hash); +extern int +sunrpc_cache_pipe_upcall(struct cache_detail *detail, struct cache_head *h, + void (*cache_request)(struct cache_detail *, + struct cache_head *, + char **, + int *)); + extern void cache_clean_deferred(void *owner); |