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From: Jeff Layton <jlayton@redhat.com>
To: trond.myklebust@primarydata.com
Cc: linux-nfs@vger.kernel.org
Subject: [PATCH 6/9] nfs: move nfs4_set_lock_state call into caller
Date: Tue,  6 Sep 2016 11:12:37 -0400	[thread overview]
Message-ID: <1473174760-29859-7-git-send-email-jlayton@redhat.com> (raw)
In-Reply-To: <1473174760-29859-1-git-send-email-jlayton@redhat.com>

We need to have this info set up before adding the waiter to the
waitqueue, so move this out of the _nfs4_proc_setlk and into the
caller. That's more efficient anyway since we don't need to do
this more than once if we end up waiting on the lock.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
---
 fs/nfs/nfs4proc.c | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index e9232d71bc64..5573f19539a6 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -6134,14 +6134,8 @@ static int _nfs4_proc_setlk(struct nfs4_state *state, int cmd, struct file_lock
 	struct nfs_inode *nfsi = NFS_I(state->inode);
 	struct nfs4_state_owner *sp = state->owner;
 	unsigned char fl_flags = request->fl_flags;
-	int status = -ENOLCK;
+	int status;
 
-	if (!test_bit(NFS_STATE_POSIX_LOCKS, &state->flags))
-		goto out;
-	/* Is this a delegated open? */
-	status = nfs4_set_lock_state(state, request);
-	if (status != 0)
-		goto out;
 	request->fl_flags |= FL_ACCESS;
 	status = locks_lock_inode_wait(state->inode, request);
 	if (status < 0)
@@ -6215,6 +6209,10 @@ nfs4_proc_lock(struct file *filp, int cmd, struct file_lock *request)
 
 	if (state == NULL)
 		return -ENOLCK;
+
+	if (!test_bit(NFS_STATE_POSIX_LOCKS, &state->flags))
+		return -ENOLCK;
+
 	/*
 	 * Don't rely on the VFS having checked the file open mode,
 	 * since it won't do this for flock() locks.
@@ -6229,6 +6227,10 @@ nfs4_proc_lock(struct file *filp, int cmd, struct file_lock *request)
 			return -EBADF;
 	}
 
+	status = nfs4_set_lock_state(state, request);
+	if (status != 0)
+		return status;
+
 	do {
 		status = nfs4_proc_setlk(state, cmd, request);
 		if ((status != -EAGAIN) || IS_SETLK(cmd))
-- 
2.7.4


  parent reply	other threads:[~2016-09-06 15:12 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-09-06 15:12 [PATCH 0/9] nfs: add CB_NOTIFY_LOCK support to nfs client Jeff Layton
2016-09-06 15:12 ` [PATCH 1/9] nfs: the length argument to read_buf should be unsigned Jeff Layton
2016-09-08 17:39   ` Anna Schumaker
2016-09-08 18:19     ` Jeff Layton
2016-09-06 15:12 ` [PATCH 2/9] nfs: eliminate pointless and confusing do_vfs_lock wrappers Jeff Layton
2016-09-06 15:12 ` [PATCH 3/9] nfs: check for POSIX lock capability on server even for flock locks Jeff Layton
2016-09-06 15:12 ` [PATCH 4/9] nfs: add a freezable_schedule_timeout_unsafe() and use it when waiting to retry LOCK Jeff Layton
2016-09-06 16:39   ` Jeff Layton
2016-09-08 18:20   ` Anna Schumaker
2016-09-08 18:36     ` Jeff Layton
2016-09-06 15:12 ` [PATCH 5/9] nfs: add handling for CB_NOTIFY_LOCK in client Jeff Layton
2016-09-08 20:11   ` Anna Schumaker
2016-09-06 15:12 ` Jeff Layton [this message]
2016-09-08 19:47   ` [PATCH 6/9] nfs: move nfs4_set_lock_state call into caller Anna Schumaker
2016-09-08 21:41     ` Jeff Layton
2016-09-06 15:12 ` [PATCH 7/9] nfs: add code to allow client to wait on lock callbacks Jeff Layton
2016-09-08 19:59   ` Anna Schumaker
2016-09-08 21:42     ` Jeff Layton
2016-09-06 15:12 ` [PATCH 8/9] nfs: ensure that the filehandle in CB_NOTIFY_LOCK request matches the inode Jeff Layton
2016-09-08 20:07   ` Anna Schumaker
2016-09-08 21:43     ` Jeff Layton
2016-09-06 15:12 ` [PATCH 9/9] nfs: track whether server sets MAY_NOTIFY_LOCK flag Jeff Layton
2016-09-08 20:15   ` Anna Schumaker
2016-09-08 21:47     ` Jeff Layton

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