* @erase: erase one segment
* @read: read from the device
* @erase: erase part of the device
+ * @can_write_buf: decide whether wbuf can be written to ofs
*/
struct logfs_device_ops {
struct page *(*find_first_sb)(struct super_block *sb, u64 *ofs);
void (*writeseg)(struct super_block *sb, u64 ofs, size_t len);
int (*erase)(struct super_block *sb, loff_t ofs, size_t len,
int ensure_write);
+ int (*can_write_buf)(struct super_block *sb, u64 ofs);
void (*sync)(struct super_block *sb);
void (*put_device)(struct super_block *sb);
};
int s_lock_count;
mempool_t *s_block_pool; /* struct logfs_block pool */
mempool_t *s_shadow_pool; /* struct logfs_shadow pool */
+ struct list_head s_writeback_list; /* writeback pages */
/*
* Space accounting:
* - s_used_bytes specifies space used to store valid data objects.
int logfs_readpage(struct file *file, struct page *page);
int logfs_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
unsigned long arg);
-int logfs_fsync(struct file *file, struct dentry *dentry, int datasync);
+int logfs_fsync(struct file *file, int datasync);
/* gc.c */
u32 get_best_cand(struct super_block *sb, struct candidate_list *list, u32 *ec);
u8 level = (__force u8)__level;
if (ino == LOGFS_INO_MASTER) {
- /* ifile has seperate areas */
+ /* ifile has separate areas */
level += LOGFS_MAX_LEVELS;
}
return (__force gc_level_t)level;