#include <linux/errno.h>
#include <linux/types.h>
-#include <linux/spinlock.h>
#define __DQUOT_VERSION__ "dquot_6.5.1"
#define __DQUOT_NUM_VERSION__ 6*10000+5*100+1
typedef __kernel_uid32_t qid_t; /* Type in which we store ids in memory */
typedef __u64 qsize_t; /* Type in which we store sizes */
-extern spinlock_t dq_list_lock;
extern spinlock_t dq_data_lock;
/* Size of blocks in which are counted size limits */
};
#ifdef __KERNEL__
+#include <linux/spinlock.h>
+#include <linux/mutex.h>
#include <linux/dqblk_xfs.h>
#include <linux/dqblk_v1.h>
#include <linux/dqblk_v2.h>
/* Maximal numbers of writes for quota operation (insert/delete/update)
- * (over all formats) - info block, 4 pointer blocks, data block */
-#define DQUOT_MAX_WRITES 6
+ * (over VFS all formats) */
+#define DQUOT_INIT_ALLOC max(V1_INIT_ALLOC, V2_INIT_ALLOC)
+#define DQUOT_INIT_REWRITE max(V1_INIT_REWRITE, V2_INIT_REWRITE)
+#define DQUOT_DEL_ALLOC max(V1_DEL_ALLOC, V2_DEL_ALLOC)
+#define DQUOT_DEL_REWRITE max(V1_DEL_REWRITE, V2_DEL_REWRITE)
/*
* Data for one user/group kept in memory
#define DQ_FAKE_B 3 /* no limits only usage */
#define DQ_READ_B 4 /* dquot was read into memory */
#define DQ_ACTIVE_B 5 /* dquot is active (dquot_release not called) */
-#define DQ_WAITFREE_B 6 /* dquot being waited (by invalidate_dquots) */
struct dquot {
struct hlist_node dq_hash; /* Hash list in memory */
struct list_head dq_inuse; /* List of all quotas */
struct list_head dq_free; /* Free list element */
struct list_head dq_dirty; /* List of dirty dquots */
- struct semaphore dq_lock; /* dquot IO lock */
+ struct mutex dq_lock; /* dquot IO lock */
atomic_t dq_count; /* Use count */
wait_queue_head_t dq_wait_unused; /* Wait queue for dquot to become unused */
struct super_block *dq_sb; /* superblock this applies to */
int (*free_inode) (const struct inode *, unsigned long);
int (*transfer) (struct inode *, struct iattr *);
int (*write_dquot) (struct dquot *); /* Ordinary dquot write */
+ int (*acquire_dquot) (struct dquot *); /* Quota is going to be created on disk */
+ int (*release_dquot) (struct dquot *); /* Quota is going to be deleted from disk */
int (*mark_dirty) (struct dquot *); /* Dquot is marked dirty */
int (*write_info) (struct super_block *, int); /* Write of quota "superblock" */
};
struct quota_info {
unsigned int flags; /* Flags for diskquotas on this device */
- struct semaphore dqio_sem; /* lock device while I/O in progress */
- struct semaphore dqonoff_sem; /* Serialize quotaon & quotaoff */
+ struct mutex dqio_mutex; /* lock device while I/O in progress */
+ struct mutex dqonoff_mutex; /* Serialize quotaon & quotaoff */
struct rw_semaphore dqptr_sem; /* serialize ops using quota_info struct, pointers from inode to dquots */
- struct file *files[MAXQUOTAS]; /* fp's to quotafiles */
+ struct inode *files[MAXQUOTAS]; /* inodes of quotafiles */
struct mem_dqinfo info[MAXQUOTAS]; /* Information for each quota type */
struct quota_format_ops *ops[MAXQUOTAS]; /* Operations for each type */
};