linux-ext4 - [PATCH 11/12] jfs: Convert to private i

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Date:	Fri, 10 Oct 2014 16:55:09 +0200
From:	Jan Kara <jack@...e.cz>
To:	linux-fsdevel@...r.kernel.org
Cc:	linux-ext4@...r.kernel.org, Dave Chinner <david@...morbit.com>,
	xfs@....sgi.com, cluster-devel@...hat.com,
	Steven Whitehouse <swhiteho@...hat.com>,
	Mark Fasheh <mfasheh@...e.com>,
	Joel Becker <jlbec@...lplan.org>, ocfs2-devel@....oracle.com,
	reiserfs-devel@...r.kernel.org, Jeff Mahoney <jeffm@...e.de>,
	Dave Kleikamp <shaggy@...nel.org>,
	jfs-discussion@...ts.sourceforge.net, tytso@....edu,
	viro@...iv.linux.org.uk, Jan Kara <jack@...e.cz>
Subject: [PATCH 11/12] jfs: Convert to private i_dquot field

CC: Dave Kleikamp <shaggy@...nel.org>
CC: jfs-discussion@...ts.sourceforge.net
Signed-off-by: Jan Kara <jack@...e.cz>
---
 fs/jfs/jfs_incore.h |  3 +++
 fs/jfs/super.c      | 13 +++++++++++++
 2 files changed, 16 insertions(+)

diff --git a/fs/jfs/jfs_incore.h b/fs/jfs/jfs_incore.h
index cf47f09e8ac8..fa7e795bd8ae 100644
--- a/fs/jfs/jfs_incore.h
+++ b/fs/jfs/jfs_incore.h
@@ -94,6 +94,9 @@ struct jfs_inode_info {
 			unchar _inline_ea[128];	/* 128: inline extended attr */
 		} link;
 	} u;
+#ifdef CONFIG_QUOTA
+	struct dquot *i_dquot[MAXQUOTAS];
+#endif
 	u32 dev;	/* will die when we get wide dev_t */
 	struct inode	vfs_inode;
 };
diff --git a/fs/jfs/super.c b/fs/jfs/super.c
index adf8cb045b9e..a13727dd3826 100644
--- a/fs/jfs/super.c
+++ b/fs/jfs/super.c
@@ -54,6 +54,7 @@ static struct kmem_cache *jfs_inode_cachep;
 
 static const struct super_operations jfs_super_operations;
 static const struct export_operations jfs_export_operations;
+static const int jfs_inode_fields[IF_FIELD_NR];
 static struct file_system_type jfs_fs_type;
 
 #define MAX_COMMIT_THREADS 64
@@ -117,6 +118,9 @@ static struct inode *jfs_alloc_inode(struct super_block *sb)
 	jfs_inode = kmem_cache_alloc(jfs_inode_cachep, GFP_NOFS);
 	if (!jfs_inode)
 		return NULL;
+#ifdef CONFIG_QUOTA
+	memset(&jfs_inode->i_dquot, 0, sizeof(jfs_inode->i_dquot));
+#endif
 	return &jfs_inode->vfs_inode;
 }
 
@@ -537,7 +541,9 @@ static int jfs_fill_super(struct super_block *sb, void *data, int silent)
 #ifdef CONFIG_QUOTA
 	sb->dq_op = &dquot_operations;
 	sb->s_qcop = &dquot_quotactl_ops;
+	sb_dqopt(sb)->allowed_types = QTYPE_MASK_USR | QTYPE_MASK_GRP;
 #endif
+	sb_init_inode_fields(sb, jfs_inode_fields);
 
 	/*
 	 * Initialize direct-mapping inode/address-space
@@ -857,6 +863,13 @@ static const struct super_operations jfs_super_operations = {
 #endif
 };
 
+static const int jfs_inode_fields[IF_FIELD_NR] = {
+#ifdef CONFIG_QUOTA
+	[IF_DQUOTS] = (int)offsetof(struct jfs_inode_info, i_dquot) -
+		      (int)offsetof(struct jfs_inode_info, vfs_inode),
+#endif
+};
+
 static const struct export_operations jfs_export_operations = {
 	.fh_to_dentry	= jfs_fh_to_dentry,
 	.fh_to_parent	= jfs_fh_to_parent,
-- 
1.8.1.4

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