diff options
| -rw-r--r-- | fs/lockd/clntlock.c | 21 |
1 files changed, 15 insertions, 6 deletions
diff --git a/fs/lockd/clntlock.c b/fs/lockd/clntlock.c index 8307dd64bf46..94d42cc4e393 100644 --- a/fs/lockd/clntlock.c +++ b/fs/lockd/clntlock.c @@ -14,6 +14,7 @@ #include <linux/sunrpc/svc.h> #include <linux/lockd/lockd.h> #include <linux/smp_lock.h> +#include <linux/kthread.h> #define NLMDBG_FACILITY NLMDBG_CLIENT @@ -191,11 +192,15 @@ __be32 nlmclnt_grant(const struct sockaddr *addr, const struct nlm_lock *lock) void nlmclnt_recovery(struct nlm_host *host) { + struct task_struct *task; + if (!host->h_reclaiming++) { nlm_get_host(host); - __module_get(THIS_MODULE); - if (kernel_thread(reclaimer, host, CLONE_FS | CLONE_FILES) < 0) - module_put(THIS_MODULE); + task = kthread_run(reclaimer, host, "%s-reclaim", host->h_name); + if (IS_ERR(task)) + printk(KERN_ERR "lockd: unable to spawn reclaimer " + "thread. Locks for %s won't be reclaimed! " + "(%ld)\n", host->h_name, PTR_ERR(task)); } } @@ -207,7 +212,6 @@ reclaimer(void *ptr) struct file_lock *fl, *next; u32 nsmstate; - daemonize("%s-reclaim", host->h_name); allow_signal(SIGKILL); down_write(&host->h_rwsem); @@ -233,7 +237,12 @@ restart: list_for_each_entry_safe(fl, next, &host->h_reclaim, fl_u.nfs_fl.list) { list_del_init(&fl->fl_u.nfs_fl.list); - /* Why are we leaking memory here? --okir */ + /* + * sending this thread a SIGKILL will result in any unreclaimed + * locks being removed from the h_granted list. This means that + * the kernel will not attempt to reclaim them again if a new + * reclaimer thread is spawned for this host. + */ if (signalled()) continue; if (nlmclnt_reclaim(host, fl) != 0) @@ -261,5 +270,5 @@ restart: nlm_release_host(host); lockd_down(); unlock_kernel(); - module_put_and_exit(0); + return 0; } |