From 593ce16b943ea37d4ec62c377b32d7f3f4085e84 Mon Sep 17 00:00:00 2001 From: Pavel Emelyanov Date: Mon, 27 Sep 2010 14:00:15 +0400 Subject: [PATCH] sunrpc: Add routines that allow registering per-net caches Existing calls do the same, but for the init_net. Signed-off-by: Pavel Emelyanov Signed-off-by: J. Bruce Fields --- include/linux/sunrpc/cache.h | 2 ++ net/sunrpc/cache.c | 27 +++++++++++++++++++-------- 2 files changed, 21 insertions(+), 8 deletions(-) diff --git a/include/linux/sunrpc/cache.h b/include/linux/sunrpc/cache.h index 03496357f455..6950c981882d 100644 --- a/include/linux/sunrpc/cache.h +++ b/include/linux/sunrpc/cache.h @@ -197,7 +197,9 @@ extern void cache_purge(struct cache_detail *detail); #define NEVER (0x7FFFFFFF) extern void __init cache_initialize(void); extern int cache_register(struct cache_detail *cd); +extern int cache_register_net(struct cache_detail *cd, struct net *net); extern void cache_unregister(struct cache_detail *cd); +extern void cache_unregister_net(struct cache_detail *cd, struct net *net); extern int sunrpc_cache_register_pipefs(struct dentry *parent, const char *, mode_t, struct cache_detail *); diff --git a/net/sunrpc/cache.c b/net/sunrpc/cache.c index ff733dfef3b8..e84e7ddeecd4 100644 --- a/net/sunrpc/cache.c +++ b/net/sunrpc/cache.c @@ -34,6 +34,7 @@ #include #include #include +#include #define RPCDBG_FACILITY RPCDBG_CACHE @@ -1537,7 +1538,7 @@ static const struct file_operations cache_flush_operations_procfs = { .release = release_flush_procfs, }; -static void remove_cache_proc_entries(struct cache_detail *cd) +static void remove_cache_proc_entries(struct cache_detail *cd, struct net *net) { if (cd->u.procfs.proc_ent == NULL) return; @@ -1552,7 +1553,7 @@ static void remove_cache_proc_entries(struct cache_detail *cd) } #ifdef CONFIG_PROC_FS -static int create_cache_proc_entries(struct cache_detail *cd) +static int create_cache_proc_entries(struct cache_detail *cd, struct net *net) { struct proc_dir_entry *p; @@ -1587,11 +1588,11 @@ static int create_cache_proc_entries(struct cache_detail *cd) } return 0; out_nomem: - remove_cache_proc_entries(cd); + remove_cache_proc_entries(cd, net); return -ENOMEM; } #else /* CONFIG_PROC_FS */ -static int create_cache_proc_entries(struct cache_detail *cd) +static int create_cache_proc_entries(struct cache_detail *cd, struct net *net) { return 0; } @@ -1602,23 +1603,33 @@ void __init cache_initialize(void) INIT_DELAYED_WORK_DEFERRABLE(&cache_cleaner, do_cache_clean); } -int cache_register(struct cache_detail *cd) +int cache_register_net(struct cache_detail *cd, struct net *net) { int ret; sunrpc_init_cache_detail(cd); - ret = create_cache_proc_entries(cd); + ret = create_cache_proc_entries(cd, net); if (ret) sunrpc_destroy_cache_detail(cd); return ret; } + +int cache_register(struct cache_detail *cd) +{ + return cache_register_net(cd, &init_net); +} EXPORT_SYMBOL_GPL(cache_register); -void cache_unregister(struct cache_detail *cd) +void cache_unregister_net(struct cache_detail *cd, struct net *net) { - remove_cache_proc_entries(cd); + remove_cache_proc_entries(cd, net); sunrpc_destroy_cache_detail(cd); } + +void cache_unregister(struct cache_detail *cd) +{ + cache_unregister_net(cd, &init_net); +} EXPORT_SYMBOL_GPL(cache_unregister); static ssize_t cache_read_pipefs(struct file *filp, char __user *buf, -- 2.34.1