linux-kernel - [RFC PATCH 14/13] NFSd: make grace end flag per network namespace

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Message-ID: <20120514131834.2055.54788.stgit@localhost.localdomain>
Date:	Mon, 14 May 2012 17:19:34 +0400
From:	Stanislav Kinsbursky <skinsbursky@...allels.com>
To:	bfields@...ldses.org, Trond.Myklebust@...app.com
Cc:	linux-nfs@...r.kernel.org, linux-kernel@...r.kernel.org,
	devel@...nvz.org
Subject: [RFC PATCH 14/13] NFSd: make grace end flag per network namespace

NFSd's grace_ender flag is a part of grace period facility.

Signed-off-by: Stanislav Kinsbursky <skinsbursky@...allels.com>
---
 fs/nfsd/netns.h     |    1 +
 fs/nfsd/nfs4state.c |    8 +++-----
 2 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/fs/nfsd/netns.h b/fs/nfsd/netns.h
index e99767d..b6deebd 100644
--- a/fs/nfsd/netns.h
+++ b/fs/nfsd/netns.h
@@ -36,6 +36,7 @@ struct nfsd_net {
 	struct cache_detail *nametoid_cache;
 
 	struct lock_manager nfsd4_manager;
+	bool grace_ended;
 };
 
 extern int nfsd_net_id;
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 2f940c1..7c88ee8 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -3188,19 +3188,17 @@ out:
 	return status;
 }
 
-static bool grace_ended;
-
 static void
 nfsd4_end_grace(struct net *net)
 {
 	struct nfsd_net *nn = net_generic(net, nfsd_net_id);
 
 	/* do nothing if grace period already ended */
-	if (grace_ended)
+	if (nn->grace_ended)
 		return;
 
 	dprintk("NFSD: end of grace period\n");
-	grace_ended = true;
+	nn->grace_ended = true;
 	nfsd4_record_grace_done(net, boot_time);
 	locks_end_grace(&nn->nfsd4_manager);
 	/*
@@ -4761,7 +4759,7 @@ nfs4_state_start(void)
 	nfsd4_client_tracking_init(net);
 	boot_time = get_seconds();
 	locks_start_grace(net, &nn->nfsd4_manager);
-	grace_ended = false;
+	nn->grace_ended = false;
 	printk(KERN_INFO "NFSD: starting %ld-second grace period\n",
 	       nfsd4_grace);
 	ret = set_callback_cred();

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