linux-kernel - [PATCH -V7 9/9] ext3: Add get

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Message-Id: <1273679444-14903-10-git-send-email-aneesh.kumar@linux.vnet.ibm.com>
Date:	Wed, 12 May 2010 21:20:44 +0530
From:	"Aneesh Kumar K.V" <aneesh.kumar@...ux.vnet.ibm.com>
To:	hch@...radead.org, viro@...iv.linux.org.uk, adilger@....com,
	corbet@....net, serue@...ibm.com, neilb@...e.de
Cc:	linux-fsdevel@...r.kernel.org, sfrench@...ibm.com,
	philippe.deniel@....FR, linux-kernel@...r.kernel.org,
	"Aneesh Kumar K.V" <aneesh.kumar@...ux.vnet.ibm.com>
Subject: [PATCH -V7 9/9] ext3: Add get_fsid callback

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@...ux.vnet.ibm.com>
---
 fs/ext3/super.c |   10 ++++++++++
 1 files changed, 10 insertions(+), 0 deletions(-)

diff --git a/fs/ext3/super.c b/fs/ext3/super.c
index 1bee604..63c322e 100644
--- a/fs/ext3/super.c
+++ b/fs/ext3/super.c
@@ -734,6 +734,15 @@ static int bdev_try_to_free_page(struct super_block *sb, struct page *page,
 	return try_to_free_buffers(page);
 }
 
+static int ext3_get_fsid(struct super_block *sb, struct uuid *fsid)
+{
+	struct ext3_sb_info *sbi = EXT3_SB(sb);
+	struct ext3_super_block *es = sbi->s_es;
+
+	memcpy(fsid->uuid, es->s_uuid, sizeof(fsid->uuid));
+	return 0;
+}
+
 #ifdef CONFIG_QUOTA
 #define QTYPE2NAME(t) ((t)==USRQUOTA?"user":"group")
 #define QTYPE2MOPT(on, t) ((t)==USRQUOTA?((on)##USRJQUOTA):((on)##GRPJQUOTA))
@@ -791,6 +800,7 @@ static const struct super_operations ext3_sops = {
 	.quota_write	= ext3_quota_write,
 #endif
 	.bdev_try_to_free_page = bdev_try_to_free_page,
+	.get_fsid	= ext3_get_fsid,
 };
 
 static const struct export_operations ext3_export_ops = {
-- 
1.7.1.78.g212f0

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