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authorStanislav Kinsbursky <skinsbursky@parallels.com>2011-11-25 17:13:04 +0300
committerTrond Myklebust <Trond.Myklebust@netapp.com>2012-01-31 18:20:26 -0500
commit1b340d0118da1d7c60c664f17d7c8fce2bb1cd9d (patch)
treea66a9626f8fca21bd42d13a3b4270b168e2186fc /fs/nfs/netns.h
parent5c1cacb175185ed925d7dc13ac7e0653e7a633cd (diff)
NFS: DNS resolver cache per network namespace context introduced
This patch implements DNS resolver cache creation and registration for each alive network namespace context. This was done by registering NFS per-net operations, responsible for DNS cache allocation/register and unregister/destructioning instead of initialization and destruction of static "nfs_dns_resolve" cache detail (this one was removed). Pointer to network dns resolver cache is stored in new per-net "nfs_net" structure. This patch also changes nfs_dns_resolve_name() function prototype (and it's calls) by adding network pointer parameter, which is used to get proper DNS resolver cache pointer for do_cache_lookup_wait() call. Note: empty nfs_dns_resolver_init() and nfs_dns_resolver_destroy() functions will be used in next patch in the series. Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs/netns.h')
-rw-r--r--fs/nfs/netns.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/fs/nfs/netns.h b/fs/nfs/netns.h
new file mode 100644
index 00000000000..8c1f130d6ca
--- /dev/null
+++ b/fs/nfs/netns.h
@@ -0,0 +1,13 @@
+#ifndef __NFS_NETNS_H__
+#define __NFS_NETNS_H__
+
+#include <net/net_namespace.h>
+#include <net/netns/generic.h>
+
+struct nfs_net {
+ struct cache_detail *nfs_dns_resolve;
+};
+
+extern int nfs_net_id;
+
+#endif