diff options
| author | Stanislav Kinsbursky <skinsbursky@parallels.com> | 2012-03-11 18:20:31 +0400 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2012-03-11 10:57:35 -0400 |
| commit | 5ffaf8554163d9f3873988ce2f9977f6c6f408d2 (patch) | |
| tree | ed026242a8580c8df03c9383ef32e6e7fb90f949 /fs/nfs/blocklayout/blocklayout.c | |
| parent | cb9c1c4a880bc734c2848f8647be2cfa336ee346 (diff) | |
NFS: replace global bl_wq with per-net one
This queue is used for sleeping in kernel and it have to be per-net since we
don't want to wake any other waiters except in out network nemespace.
BTW, move wq to per-net data is easy. But some way to handle upcall timeouts
have to be provided. On message destroy in case of timeout, tasks, waiting for
message to be delivered, should be awakened. Thus, some data required to
located the right wait queue. Chosen solution replaces rpc_pipe_msg object with
new introduced bl_pipe_msg object, containing rpc_pipe_msg and proper wq.
Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs/blocklayout/blocklayout.c')
| -rw-r--r-- | fs/nfs/blocklayout/blocklayout.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/fs/nfs/blocklayout/blocklayout.c b/fs/nfs/blocklayout/blocklayout.c index 783ebd51bd5f..61501346324e 100644 --- a/fs/nfs/blocklayout/blocklayout.c +++ b/fs/nfs/blocklayout/blocklayout.c @@ -46,8 +46,6 @@ MODULE_LICENSE("GPL"); MODULE_AUTHOR("Andy Adamson <andros@citi.umich.edu>"); MODULE_DESCRIPTION("The NFSv4.1 pNFS Block layout driver"); -wait_queue_head_t bl_wq; - static void print_page(struct page *page) { dprintk("PRINTPAGE page %p\n", page); @@ -1117,6 +1115,7 @@ static int nfs4blocklayout_net_init(struct net *net) struct nfs_net *nn = net_generic(net, nfs_net_id); struct dentry *dentry; + init_waitqueue_head(&nn->bl_wq); nn->bl_device_pipe = rpc_mkpipe_data(&bl_upcall_ops, 0); if (IS_ERR(nn->bl_device_pipe)) return PTR_ERR(nn->bl_device_pipe); @@ -1153,7 +1152,6 @@ static int __init nfs4blocklayout_init(void) if (ret) goto out; - init_waitqueue_head(&bl_wq); ret = rpc_pipefs_notifier_register(&nfs4blocklayout_block); if (ret) goto out_remove; |