#include <linux/blkdev.h>
#include <linux/backing-dev.h>
#include <linux/slab.h>
-#include "sb.h"
+
+struct nilfs_sc_info;
/* the_nilfs struct */
enum {
* @ns_last_cno: checkpoint number of the latest segment
* @ns_prot_seq: least sequence number of segments which must not be reclaimed
* @ns_prev_seq: base sequence number used to decide if advance log cursor
- * @ns_segctor_sem: segment constructor semaphore
+ * @ns_writer: log writer
+ * @ns_segctor_sem: semaphore protecting log write
* @ns_dat: DAT file inode
* @ns_cpfile: checkpoint file inode
* @ns_sufile: segusage file inode
* @ns_cptree: rb-tree of all mounted checkpoints (nilfs_root)
* @ns_cptree_lock: lock protecting @ns_cptree
+ * @ns_dirty_files: list of dirty files
+ * @ns_inode_lock: lock protecting @ns_dirty_files
* @ns_gc_inodes: dummy inodes to keep live blocks
+ * @ns_next_generation: next generation number for inodes
+ * @ns_next_gen_lock: lock protecting @ns_next_generation
+ * @ns_mount_opt: mount options
+ * @ns_resuid: uid for reserved blocks
+ * @ns_resgid: gid for reserved blocks
+ * @ns_interval: checkpoint creation interval
+ * @ns_watermark: watermark for the number of dirty buffers
* @ns_blocksize_bits: bit length of block size
* @ns_blocksize: block size
* @ns_nsegments: number of segments in filesystem
u64 ns_prot_seq;
u64 ns_prev_seq;
+ struct nilfs_sc_info *ns_writer;
struct rw_semaphore ns_segctor_sem;
/*
struct rb_root ns_cptree;
spinlock_t ns_cptree_lock;
+ /* Dirty inode list */
+ struct list_head ns_dirty_files;
+ spinlock_t ns_inode_lock;
+
/* GC inode list */
struct list_head ns_gc_inodes;
+ /* Inode allocator */
+ u32 ns_next_generation;
+ spinlock_t ns_next_gen_lock;
+
+ /* Mount options */
+ unsigned long ns_mount_opt;
+
+ uid_t ns_resuid;
+ gid_t ns_resgid;
+ unsigned long ns_interval;
+ unsigned long ns_watermark;
+
/* Disk layout information (static) */
unsigned int ns_blocksize_bits;
unsigned int ns_blocksize;
THE_NILFS_FNS(GC_RUNNING, gc_running)
THE_NILFS_FNS(SB_DIRTY, sb_dirty)
+/*
+ * Mount option operations
+ */
+#define nilfs_clear_opt(nilfs, opt) \
+ do { (nilfs)->ns_mount_opt &= ~NILFS_MOUNT_##opt; } while (0)
+#define nilfs_set_opt(nilfs, opt) \
+ do { (nilfs)->ns_mount_opt |= NILFS_MOUNT_##opt; } while (0)
+#define nilfs_test_opt(nilfs, opt) ((nilfs)->ns_mount_opt & NILFS_MOUNT_##opt)
+#define nilfs_write_opt(nilfs, mask, opt) \
+ do { (nilfs)->ns_mount_opt = \
+ (((nilfs)->ns_mount_opt & ~NILFS_MOUNT_##mask) | \
+ NILFS_MOUNT_##opt); \
+ } while (0)
+
/**
* struct nilfs_root - nilfs root object
* @cno: checkpoint number
void nilfs_set_last_segment(struct the_nilfs *, sector_t, u64, __u64);
struct the_nilfs *alloc_nilfs(struct block_device *bdev);
void destroy_nilfs(struct the_nilfs *nilfs);
-int init_nilfs(struct the_nilfs *, struct nilfs_sb_info *, char *);
-int load_nilfs(struct the_nilfs *, struct nilfs_sb_info *);
+int init_nilfs(struct the_nilfs *nilfs, struct super_block *sb, char *data);
+int load_nilfs(struct the_nilfs *nilfs, struct super_block *sb);
int nilfs_discard_segments(struct the_nilfs *, __u64 *, size_t);
int nilfs_count_free_blocks(struct the_nilfs *, sector_t *);
struct nilfs_root *nilfs_lookup_root(struct the_nilfs *nilfs, __u64 cno);
struct nilfs_root *nilfs_find_or_create_root(struct the_nilfs *nilfs,
__u64 cno);
void nilfs_put_root(struct nilfs_root *root);
-struct nilfs_sb_info *nilfs_find_sbinfo(struct the_nilfs *, int, __u64);
int nilfs_near_disk_full(struct the_nilfs *);
void nilfs_fall_back_super_block(struct the_nilfs *);
void nilfs_swap_super_block(struct the_nilfs *);