[PATCH 12/12] vfs: Remove i_dquot field from inode

[Jan Kara <jack@suse.cz>]

All filesystems using VFS quotas are now converted to use their private
i_dquot fields. Remove the i_dquot field from generic inode structure.

Signed-off-by: Jan Kara <jack@suse.cz>
---
 fs/inode.c         |  3 ---
 fs/super.c         | 10 ----------
 include/linux/fs.h |  3 ---
 3 files changed, 16 deletions(-)

diff --git a/fs/inode.c b/fs/inode.c
index 26753ba7b6d6..2ed95f7caa4f 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -143,9 +143,6 @@ int inode_init_always(struct super_block *sb, struct inode *inode)
 	inode->i_blocks = 0;
 	inode->i_bytes = 0;
 	inode->i_generation = 0;
-#ifdef CONFIG_QUOTA
-	memset(&inode->i_dquot, 0, sizeof(inode->i_dquot));
-#endif
 	inode->i_pipe = NULL;
 	inode->i_bdev = NULL;
 	inode->i_cdev = NULL;
diff --git a/fs/super.c b/fs/super.c
index 3e70f2e22ea3..b9a214d2fe98 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -215,22 +215,12 @@ static struct super_block *alloc_super(struct file_system_type *type, int flags)
 	atomic_set(&s->s_active, 1);
 	mutex_init(&s->s_vfs_rename_mutex);
 	lockdep_set_class(&s->s_vfs_rename_mutex, &type->s_vfs_rename_key);
-	/*
-	 * For now MAXQUOTAS check in do_quotactl() will limit quota type
-	 * appropriately. When each fs sets allowed_types, we can remove the
-	 * line below
-	 */
-	s->s_dquot.allowed_types = (1 << USRQUOTA) | (1 << GRPQUOTA) |
-				   (1 << PRJQUOTA);
 	mutex_init(&s->s_dquot.dqio_mutex);
 	mutex_init(&s->s_dquot.dqonoff_mutex);
 	s->s_maxbytes = MAX_NON_LFS;
 	s->s_op = &default_op;
 	s->s_time_gran = 1000000000;
 	s->cleancache_poolid = -1;
-#ifdef CONFIG_QUOTA
-	s->s_inode_fields[IF_DQUOTS] = offsetof(struct inode, i_dquot);
-#endif
 
 	s->s_shrink.seeks = DEFAULT_SEEKS;
 	s->s_shrink.scan_objects = super_cache_scan;
diff --git a/include/linux/fs.h b/include/linux/fs.h
index d49434866da5..fb669113c37c 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -595,9 +595,6 @@ struct inode {
 	const struct file_operations	*i_fop;	/* former ->i_op->default_file_ops */
 	struct file_lock	*i_flock;
 	struct address_space	i_data;
-#ifdef CONFIG_QUOTA
-	struct dquot		*i_dquot[MAXQUOTAS];
-#endif
 	struct list_head	i_devices;
 	union {
 		struct pipe_inode_info	*i_pipe;
-- 
1.8.1.4