c21a588f35
During per-net pipes creation and destruction we have to make sure, that pipefs sb exists for the whole creation/destruction cycle. This is done by using special mutex which controls pipefs sb reference on network namespace context. Helper consists of two parts: first of them (rpc_get_dentry_net) searches for dentry with specified name and returns with mutex taken on success. When pipe creation or destructions is completed, caller should release this mutex by rpc_put_dentry_net call. Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
23 lines
416 B
C
23 lines
416 B
C
#ifndef __SUNRPC_NETNS_H__
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#define __SUNRPC_NETNS_H__
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#include <net/net_namespace.h>
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#include <net/netns/generic.h>
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struct cache_detail;
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struct sunrpc_net {
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struct proc_dir_entry *proc_net_rpc;
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struct cache_detail *ip_map_cache;
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struct super_block *pipefs_sb;
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struct mutex pipefs_sb_lock;
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};
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extern int sunrpc_net_id;
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int ip_map_cache_create(struct net *);
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void ip_map_cache_destroy(struct net *);
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#endif
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