linux-kernel - [PATCH] NFSd: simplify locking in nfsd_recall

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Message-ID: <20120522102839.12440.14555.stgit@localhost.localdomain>
Date:	Tue, 22 May 2012 14:28:55 +0400
From:	Stanislav Kinsbursky <skinsbursky@...allels.com>
To:	bfields@...ldses.org
Cc:	linux-nfs@...r.kernel.org, linux-kernel@...r.kernel.org,
	devel@...nvz.org
Subject: [PATCH] NFSd: simplify locking in nfsd_recall_delegations()

Holding of client_mutex looks redundant here - holding of recall_lock looks
enough.

Signed-off-by: Stanislav Kinsbursky <skinsbursky@...allels.com>
---
 fs/nfsd/nfs4state.c |    2 --
 1 files changed, 0 insertions(+), 2 deletions(-)

diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index f004e61..fdef9fc 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -4744,11 +4744,9 @@ void nfsd_recall_delegations(u64 num)
 {
 	unsigned int count;
 
-	nfs4_lock_state();
 	spin_lock(&recall_lock);
 	count = nfsd_process_n_delegations(num, nfsd_break_one_deleg, NULL);
 	spin_unlock(&recall_lock);
-	nfs4_unlock_state();
 
 	printk(KERN_INFO "NFSD: Recalled %d delegations", count);
 }

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