From 3cf7fb07e077e599d8343113cf4ef81adb2ca627 Mon Sep 17 00:00:00 2001 From: Stanislav Kinsbursky Date: Wed, 25 Jul 2012 16:56:11 +0400 Subject: LockD: manage garbage collection timeout per networks namespace This patch moves next_gc to per-net data. Note: passed network can be NULL (when Lockd kthread is exiting of Lockd module is removing). Signed-off-by: Stanislav Kinsbursky Signed-off-by: J. Bruce Fields --- fs/lockd/host.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) (limited to 'fs/lockd/host.c') diff --git a/fs/lockd/host.c b/fs/lockd/host.c index 991274a5566..3636734fe2b 100644 --- a/fs/lockd/host.c +++ b/fs/lockd/host.c @@ -21,6 +21,8 @@ #include +#include "netns.h" + #define NLMDBG_FACILITY NLMDBG_HOSTCACHE #define NLM_HOST_NRHASH 32 #define NLM_HOST_REBIND (60 * HZ) @@ -41,7 +43,6 @@ static struct hlist_head nlm_client_hosts[NLM_HOST_NRHASH]; hlist_for_each_entry_safe((host), (pos), (next), \ (chain), h_hash) -static unsigned long next_gc; static unsigned long nrhosts; static DEFINE_MUTEX(nlm_host_mutex); @@ -337,6 +338,7 @@ struct nlm_host *nlmsvc_lookup_host(const struct svc_rqst *rqstp, .hostname_len = hostname_len, .net = net, }; + struct lockd_net *ln = net_generic(net, lockd_net_id); dprintk("lockd: %s(host='%*s', vers=%u, proto=%s)\n", __func__, (int)hostname_len, hostname, rqstp->rq_vers, @@ -344,7 +346,7 @@ struct nlm_host *nlmsvc_lookup_host(const struct svc_rqst *rqstp, mutex_lock(&nlm_host_mutex); - if (time_after_eq(jiffies, next_gc)) + if (time_after_eq(jiffies, ln->next_gc)) nlm_gc_hosts(net); chain = &nlm_server_hosts[nlm_hash_address(ni.sap)]; @@ -653,5 +655,9 @@ nlm_gc_hosts(struct net *net) nlm_destroy_host_locked(host); } - next_gc = jiffies + NLM_HOST_COLLECT; + if (net) { + struct lockd_net *ln = net_generic(net, lockd_net_id); + + ln->next_gc = jiffies + NLM_HOST_COLLECT; + } } -- cgit v1.2.3