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authorStanislav Kinsbursky <skinsbursky@parallels.com>2012-07-25 16:55:54 +0400
committerJ. Bruce Fields <bfields@redhat.com>2012-07-27 16:48:43 -0400
commitb26411f85d3763ec5fc553854d9c3c0966072090 (patch)
tree7d8437dee426b9d0000a9e5b2553e0e3fade822f /fs/lockd
parent99dbb8fe0992ecefd061e5efa7604b92eab58ccc (diff)
downloadlinux-linaro-stable-b26411f85d3763ec5fc553854d9c3c0966072090.tar.gz
LockD: mark host per network namespace on garbage collect
This is required for per-network NLM shutdown and cleanup. This patch passes init_net for a while. Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'fs/lockd')
-rw-r--r--fs/lockd/host.c3
-rw-r--r--fs/lockd/svcsubs.c19
2 files changed, 15 insertions, 7 deletions
diff --git a/fs/lockd/host.c b/fs/lockd/host.c
index eb75ca7c2d6e..2c5f41b098e9 100644
--- a/fs/lockd/host.c
+++ b/fs/lockd/host.c
@@ -628,13 +628,14 @@ nlm_gc_hosts(void)
struct hlist_head *chain;
struct hlist_node *pos, *next;
struct nlm_host *host;
+ struct net *net = &init_net;
dprintk("lockd: host garbage collection\n");
for_each_host(host, pos, chain, nlm_server_hosts)
host->h_inuse = 0;
/* Mark all hosts that hold locks, blocks or shares */
- nlmsvc_mark_resources();
+ nlmsvc_mark_resources(net);
for_each_host_safe(host, pos, next, chain, nlm_server_hosts) {
if (atomic_read(&host->h_count) || host->h_inuse
diff --git a/fs/lockd/svcsubs.c b/fs/lockd/svcsubs.c
index 2240d384d787..0deb5f6c9dd4 100644
--- a/fs/lockd/svcsubs.c
+++ b/fs/lockd/svcsubs.c
@@ -309,7 +309,8 @@ nlm_release_file(struct nlm_file *file)
* Helpers function for resource traversal
*
* nlmsvc_mark_host:
- * used by the garbage collector; simply sets h_inuse.
+ * used by the garbage collector; simply sets h_inuse only for those
+ * hosts, which passed network check.
* Always returns 0.
*
* nlmsvc_same_host:
@@ -320,12 +321,15 @@ nlm_release_file(struct nlm_file *file)
* returns 1 iff the host is a client.
* Used by nlmsvc_invalidate_all
*/
+
static int
-nlmsvc_mark_host(void *data, struct nlm_host *dummy)
+nlmsvc_mark_host(void *data, struct nlm_host *hint)
{
struct nlm_host *host = data;
- host->h_inuse = 1;
+ if ((hint->net == NULL) ||
+ (host->net == hint->net))
+ host->h_inuse = 1;
return 0;
}
@@ -358,10 +362,13 @@ nlmsvc_is_client(void *data, struct nlm_host *dummy)
* Mark all hosts that still hold resources
*/
void
-nlmsvc_mark_resources(void)
+nlmsvc_mark_resources(struct net *net)
{
- dprintk("lockd: nlmsvc_mark_resources\n");
- nlm_traverse_files(NULL, nlmsvc_mark_host, NULL);
+ struct nlm_host hint;
+
+ dprintk("lockd: nlmsvc_mark_resources for net %p\n", net);
+ hint.net = net;
+ nlm_traverse_files(&hint, nlmsvc_mark_host, NULL);
}
/*