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authorChristoph Hellwig <hch@lst.de>2014-09-24 12:19:18 +0200
committerJ. Bruce Fields <bfields@redhat.com>2014-09-26 22:29:28 +0200
commitf0b5de1b6b8b66552bcc7ae692f45940d411cf05 (patch)
treef3529730175ae2e4cca4ae1e2e99b4a6f51e1f3f /fs/nfsd/nfs4callback.c
parentnfsd: introduce a generic nfsd4_cb (diff)
downloadlinux-f0b5de1b6b8b66552bcc7ae692f45940d411cf05.tar.xz
linux-f0b5de1b6b8b66552bcc7ae692f45940d411cf05.zip
nfsd: split nfsd4_callback initialization and use
Split out initializing the nfs4_callback structure from using it. For the NULL callback this gets rid of tons of pointless re-initializations. Note that I don't quite understand what protects us from running multiple NULL callbacks at the same time, but at least this chance doesn't make it worse.. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jeff Layton <jlayton@primarydata.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'fs/nfsd/nfs4callback.c')
-rw-r--r--fs/nfsd/nfs4callback.c14
1 files changed, 6 insertions, 8 deletions
diff --git a/fs/nfsd/nfs4callback.c b/fs/nfsd/nfs4callback.c
index 03d9f4f298ec..d97e2009e310 100644
--- a/fs/nfsd/nfs4callback.c
+++ b/fs/nfsd/nfs4callback.c
@@ -743,11 +743,6 @@ static const struct rpc_call_ops nfsd4_cb_probe_ops = {
static struct workqueue_struct *callback_wq;
-static void do_probe_callback(struct nfs4_client *clp)
-{
- return nfsd4_cb(&clp->cl_cb_null, clp, NFSPROC4_CLNT_CB_NULL);
-}
-
/*
* Poke the callback thread to process any updates to the callback
* parameters, and send a null probe.
@@ -756,7 +751,7 @@ void nfsd4_probe_callback(struct nfs4_client *clp)
{
clp->cl_cb_state = NFSD4_CB_UNKNOWN;
set_bit(NFSD4_CLIENT_CB_UPDATE, &clp->cl_flags);
- do_probe_callback(clp);
+ nfsd4_run_cb(&clp->cl_cb_null);
}
void nfsd4_probe_callback_sync(struct nfs4_client *clp)
@@ -912,7 +907,7 @@ void nfsd4_shutdown_callback(struct nfs4_client *clp)
* instead, nfsd4_run_cb_null() will detect the killed
* client, destroy the rpc client, and stop:
*/
- do_probe_callback(clp);
+ nfsd4_run_cb(&clp->cl_cb_null);
flush_workqueue(callback_wq);
}
@@ -1025,7 +1020,7 @@ nfsd4_run_cb_recall(struct work_struct *w)
nfsd4_run_callback_rpc(cb);
}
-void nfsd4_cb(struct nfsd4_callback *cb, struct nfs4_client *clp,
+void nfsd4_init_cb(struct nfsd4_callback *cb, struct nfs4_client *clp,
enum nfsd4_cb_op op)
{
cb->cb_clp = clp;
@@ -1038,6 +1033,9 @@ void nfsd4_cb(struct nfsd4_callback *cb, struct nfs4_client *clp,
cb->cb_ops = &nfsd4_cb_recall_ops;
INIT_LIST_HEAD(&cb->cb_per_client);
cb->cb_done = true;
+}
+void nfsd4_run_cb(struct nfsd4_callback *cb)
+{
queue_work(callback_wq, &cb->cb_work);
}