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From: "J. Bruce Fields" <bfields@redhat.com>
To: linux-fsdevel@vger.kernel.org
Cc: linux-nfs@vger.kernel.org, samba-technical@lists.samba.org,
	Christoph Hellwig <hch@infradead.org>,
	Al Viro <viro@zeniv.linux.org.uk>,
	Mimi Zohar <zohar@linux.vnet.ibm.com>,
	"J. Bruce Fields" <bfields@redhat.com>
Subject: [PATCH 5/6] leases: break leases on any attribute modification
Date: Wed, 21 Sep 2011 10:58:16 -0400	[thread overview]
Message-ID: <1316617097-21384-6-git-send-email-bfields@redhat.com> (raw)
In-Reply-To: <1316617097-21384-1-git-send-email-bfields@redhat.com>

NFSv4 uses leases to guarantee that clients can cash metadata as well as
data.

(I suspect the same is true for Samba.)

This covers chmod, chown, etc.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
---
 fs/attr.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/fs/attr.c b/fs/attr.c
index 538e279..4ce31cb 100644
--- a/fs/attr.c
+++ b/fs/attr.c
@@ -231,6 +231,9 @@ int notify_change(struct dentry * dentry, struct iattr * attr)
 	error = security_inode_setattr(dentry, attr);
 	if (error)
 		return error;
+	error = break_lease(inode, O_WRONLY);
+	if (error)
+		return error;
 
 	if (inode->i_op->setattr)
 		error = inode->i_op->setattr(dentry, attr);
-- 
1.7.4.1


  parent reply	other threads:[~2011-09-21 14:58 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-09-21 14:58 breaking leases on metadata changes J. Bruce Fields
2011-09-21 14:58 ` [PATCH 1/6] leases: split up generic_setlease into lock/unlock cases J. Bruce Fields
2011-09-22 17:16   ` Mimi Zohar
2011-09-23 18:57     ` J. Bruce Fields
2011-09-21 14:58 ` [PATCH 2/6] leases: fix write-open/read-lease race J. Bruce Fields
2011-09-21 15:01   ` J. Bruce Fields
2011-09-22 17:17     ` Mimi Zohar
2011-10-10 21:59   ` J. Bruce Fields
2011-10-11  6:19     ` Need information about the net ads user command Pankaj Baranwal
2011-10-28  8:46     ` [PATCH 2/6] leases: fix write-open/read-lease race J. Bruce Fields
2011-09-21 14:58 ` [PATCH 3/6] leases: break read leases on unlink J. Bruce Fields
2011-09-21 15:02   ` Christoph Hellwig
2011-09-21 17:41     ` J. Bruce Fields
2011-09-21 14:58 ` [PATCH 4/6] leases: break read leases on rename J. Bruce Fields
2011-09-22 17:17   ` Mimi Zohar
2011-09-23 16:55     ` J. Bruce Fields
2011-09-23 18:55       ` J. Bruce Fields
2011-09-23 19:58       ` Mimi Zohar
2011-09-23 20:13         ` J. Bruce Fields
2011-09-21 14:58 ` J. Bruce Fields [this message]
2011-09-21 15:35   ` [PATCH 5/6] leases: break leases on any attribute modification J. Bruce Fields
2011-09-21 14:58 ` [PATCH 6/6] leases: break read leases on link J. Bruce Fields
2011-09-24 18:36 ` breaking leases on metadata changes Stefan (metze) Metzmacher
2011-09-26 14:10   ` J. Bruce Fields
2011-09-26 16:16     ` J. Bruce Fields

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