THE_NILFS_LOADED, /* Roll-back/roll-forward has done and
the latest checkpoint was loaded */
THE_NILFS_DISCONTINUED, /* 'next' pointer chain has broken */
+ THE_NILFS_GC_RUNNING, /* gc process is running */
};
/**
THE_NILFS_FNS(INIT, init)
THE_NILFS_FNS(LOADED, loaded)
THE_NILFS_FNS(DISCONTINUED, discontinued)
+THE_NILFS_FNS(GC_RUNNING, gc_running)
/* Minimum interval of periodical update of superblocks (in seconds) */
#define NILFS_SB_FREQ 10
#define NILFS_ALTSB_FREQ 60 /* spare superblock */
+static inline int nilfs_sb_need_update(struct the_nilfs *nilfs)
+{
+ u64 t = get_seconds();
+ return t < nilfs->ns_sbwtime[0] ||
+ t > nilfs->ns_sbwtime[0] + NILFS_SB_FREQ;
+}
+
+static inline int nilfs_altsb_need_update(struct the_nilfs *nilfs)
+{
+ u64 t = get_seconds();
+ struct nilfs_super_block **sbp = nilfs->ns_sbp;
+ return sbp[1] && t > nilfs->ns_sbwtime[1] + NILFS_ALTSB_FREQ;
+}
+
void nilfs_set_last_segment(struct the_nilfs *, sector_t, u64, __u64);
struct the_nilfs *find_or_create_nilfs(struct block_device *);
void put_nilfs(struct the_nilfs *);
kfree(sbi);
}
+static inline int nilfs_valid_fs(struct the_nilfs *nilfs)
+{
+ unsigned valid_fs;
+
+ down_read(&nilfs->ns_sem);
+ valid_fs = (nilfs->ns_mount_state & NILFS_VALID_FS);
+ up_read(&nilfs->ns_sem);
+ return valid_fs;
+}
+
static inline void
nilfs_get_segment_range(struct the_nilfs *nilfs, __u64 segnum,
sector_t *seg_start, sector_t *seg_end)