Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs

Pull quota updates from Jan Kara:
 "Quota improvements and some minor cleanups.

  The main portion in the pull request are changes which move i_dquot
  array from struct inode into fs-private part of an inode which saves
  memory for filesystems which don't use VFS quotas"

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
  udf: One function call less in udf_fill_super() after error detection
  udf: Deletion of unnecessary checks before the function call "iput"
  jbd: Deletion of an unnecessary check before the function call "iput"
  vfs: Remove i_dquot field from inode
  jfs: Convert to private i_dquot field
  reiserfs: Convert to private i_dquot field
  ocfs2: Convert to private i_dquot field
  ext4: Convert to private i_dquot field
  ext3: Convert to private i_dquot field
  ext2: Convert to private i_dquot field
  quota: Use function to provide i_dquot pointers
  xfs: Set allowed quota types
  gfs2: Set allowed quota types
  quota: Allow each filesystem to specify which quota types it supports
  quota: Remove const from function declarations
  quota: Add log level to printk

3 files changed, 11 insertions, 7 deletions

diff --git a/include/linux/fs.h b/include/linux/fs.h
index b4a1d73c0d5d..f21b15804917 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -606,9 +606,6 @@ 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;
@@ -1224,6 +1221,7 @@ struct super_block {
 	struct backing_dev_info *s_bdi;
 	struct mtd_info		*s_mtd;
 	struct hlist_node	s_instances;
+	unsigned int		s_quota_types;	/* Bitmask of supported quota types */
 	struct quota_info	s_dquot;	/* Diskquota specific options */
 
 	struct sb_writers	s_writers;
@@ -1592,6 +1590,7 @@ struct super_operations {
 #ifdef CONFIG_QUOTA
 	ssize_t (*quota_read)(struct super_block *, int, char *, size_t, loff_t);
 	ssize_t (*quota_write)(struct super_block *, int, const char *, size_t, loff_t);
+	struct dquot **(*get_dquots)(struct inode *);
 #endif
 	int (*bdev_try_to_free_page)(struct super_block*, struct page*, gfp_t);
 	long (*nr_cached_objects)(struct super_block *, int);
diff --git a/include/linux/quota.h b/include/linux/quota.h
index 80d345a3524c..50978b781a19 100644
--- a/include/linux/quota.h
+++ b/include/linux/quota.h
@@ -56,6 +56,11 @@ enum quota_type {
 	PRJQUOTA = 2,		/* element used for project quotas */
 };
 
+/* Masks for quota types when used as a bitmask */
+#define QTYPE_MASK_USR (1 << USRQUOTA)
+#define QTYPE_MASK_GRP (1 << GRPQUOTA)
+#define QTYPE_MASK_PRJ (1 << PRJQUOTA)
+
 typedef __kernel_uid32_t qid_t; /* Type in which we store ids in memory */
 typedef long long qsize_t;	/* Type in which we store sizes */
 
diff --git a/include/linux/quotaops.h b/include/linux/quotaops.h
index 1d3eee594cd6..f23538a6e411 100644
--- a/include/linux/quotaops.h
+++ b/include/linux/quotaops.h
@@ -64,10 +64,10 @@ void dquot_destroy(struct dquot *dquot);
 int __dquot_alloc_space(struct inode *inode, qsize_t number, int flags);
 void __dquot_free_space(struct inode *inode, qsize_t number, int flags);
 
-int dquot_alloc_inode(const struct inode *inode);
+int dquot_alloc_inode(struct inode *inode);
 
 int dquot_claim_space_nodirty(struct inode *inode, qsize_t number);
-void dquot_free_inode(const struct inode *inode);
+void dquot_free_inode(struct inode *inode);
 void dquot_reclaim_space_nodirty(struct inode *inode, qsize_t number);
 
 int dquot_disable(struct super_block *sb, int type, unsigned int flags);
@@ -213,12 +213,12 @@ static inline void dquot_drop(struct inode *inode)
 {
 }
 
-static inline int dquot_alloc_inode(const struct inode *inode)
+static inline int dquot_alloc_inode(struct inode *inode)
 {
 	return 0;
 }
 
-static inline void dquot_free_inode(const struct inode *inode)
+static inline void dquot_free_inode(struct inode *inode)
 {
 }