typecheck(unsigned long long, b) && \
((long long)((a) - (b)) > 0))
-typedef u64 block_t;
+typedef u32 block_t; /*
+ * should not change u32, since it is the on-disk block
+ * address format, __le32.
+ */
typedef u32 nid_t;
struct f2fs_mount_info {
/* for directory inode management */
struct list_head dir_inode_list; /* dir inode list */
spinlock_t dir_inode_lock; /* for dir inode list lock */
- unsigned int n_dirty_dirs; /* # of dir inodes */
/* basic file system units */
unsigned int log_sectors_per_block; /* log2 sectors per block */
* for stat information.
* one is for the LFS mode, and the other is for the SSR mode.
*/
+#ifdef CONFIG_F2FS_STAT_FS
struct f2fs_stat_info *stat_info; /* FS status information */
unsigned int segment_count[2]; /* # of allocated segments */
unsigned int block_count[2]; /* # of allocated blocks */
- unsigned int last_victim[2]; /* last victim segment # */
int total_hit_ext, read_hit_ext; /* extent cache hit ratio */
int bg_gc; /* background gc calls */
+ unsigned int n_dirty_dirs; /* # of dir inodes */
+#endif
+ unsigned int last_victim[2]; /* last victim segment # */
spinlock_t stat_lock; /* lock for stat operations */
};
static inline void mutex_lock_all(struct f2fs_sb_info *sbi)
{
- int i = 0;
- for (; i < NR_GLOBAL_LOCKS; i++)
- mutex_lock(&sbi->fs_lock[i]);
+ int i;
+
+ for (i = 0; i < NR_GLOBAL_LOCKS; i++) {
+ /*
+ * This is the only time we take multiple fs_lock[]
+ * instances; the order is immaterial since we
+ * always hold cp_mutex, which serializes multiple
+ * such operations.
+ */
+ mutex_lock_nest_lock(&sbi->fs_lock[i], &sbi->cp_mutex);
+ }
}
static inline void mutex_unlock_all(struct f2fs_sb_info *sbi)
FI_INC_LINK, /* need to increment i_nlink */
FI_ACL_MODE, /* indicate acl mode */
FI_NO_ALLOC, /* should not allocate any blocks */
+ FI_DELAY_IPUT, /* used for the recovery */
};
static inline void set_inode_flag(struct f2fs_inode_info *fi, int flag)
return 0;
}
+static inline int f2fs_readonly(struct super_block *sb)
+{
+ return sb->s_flags & MS_RDONLY;
+}
+
/*
* file.c
*/
void f2fs_truncate(struct inode *);
int f2fs_setattr(struct dentry *, struct iattr *);
int truncate_hole(struct inode *, pgoff_t, pgoff_t);
+int truncate_data_blocks_range(struct dnode_of_data *, int);
long f2fs_ioctl(struct file *, unsigned int, unsigned long);
long f2fs_compat_ioctl(struct file *, unsigned int, unsigned long);
ino_t f2fs_inode_by_name(struct inode *, struct qstr *);
void f2fs_set_link(struct inode *, struct f2fs_dir_entry *,
struct page *, struct inode *);
-void init_dent_inode(const struct qstr *, struct page *);
int __f2fs_add_link(struct inode *, const struct qstr *, struct inode *);
void f2fs_delete_entry(struct f2fs_dir_entry *, struct page *, struct inode *);
int f2fs_make_empty(struct inode *, struct inode *);
int get_dnode_of_data(struct dnode_of_data *, pgoff_t, int);
int truncate_inode_blocks(struct inode *, pgoff_t);
int remove_inode_page(struct inode *);
-int new_inode_page(struct inode *, const struct qstr *);
+struct page *new_inode_page(struct inode *, const struct qstr *);
struct page *new_node_page(struct dnode_of_data *, unsigned int);
void ra_node_page(struct f2fs_sb_info *, nid_t);
struct page *get_node_page(struct f2fs_sb_info *, pgoff_t);
int get_valid_checkpoint(struct f2fs_sb_info *);
void set_dirty_dir_page(struct inode *, struct page *);
void remove_dirty_dir_inode(struct inode *);
+struct inode *check_dirty_dir_inode(struct f2fs_sb_info *, nid_t);
void sync_dirty_dir_inodes(struct f2fs_sb_info *);
void write_checkpoint(struct f2fs_sb_info *, bool);
void init_orphan_info(struct f2fs_sb_info *);
void update_extent_cache(block_t, struct dnode_of_data *);
struct page *find_data_page(struct inode *, pgoff_t, bool);
struct page *get_lock_data_page(struct inode *, pgoff_t);
-struct page *get_new_data_page(struct inode *, pgoff_t, bool);
+struct page *get_new_data_page(struct inode *, struct page *, pgoff_t, bool);
int f2fs_readpage(struct f2fs_sb_info *, struct page *, block_t, int);
int do_write_data_page(struct page *);