* struct nilfs_inode - structure of an inode on disk
* @i_blocks: blocks count
* @i_size: size in bytes
- * @i_ctime: creation time
- * @i_mtime: modification time
- * @i_dtime: deletion time
+ * @i_ctime: creation time (seconds)
+ * @i_mtime: modification time (seconds)
+ * @i_ctime_nsec: creation time (nano seconds)
+ * @i_mtime_nsec: modification time (nano seconds)
* @i_uid: user id
* @i_gid: group id
* @i_mode: file mode
__le64 i_size;
__le64 i_ctime;
__le64 i_mtime;
- __le64 i_dtime;
+ __le32 i_ctime_nsec;
+ __le32 i_mtime_nsec;
__le32 i_uid;
__le32 i_gid;
__le16 i_mode;
#define NILFS_MOUNT_BARRIER 0x1000 /* Use block barriers */
#define NILFS_MOUNT_STRICT_ORDER 0x2000 /* Apply strict in-order
semantics also for data */
+#define NILFS_MOUNT_NORECOVERY 0x4000 /* Disable write access during
+ mount-time recovery */
+#define NILFS_MOUNT_DISCARD 0x8000 /* Issue DISCARD requests */
/**
#define NILFS_MIN_NRSVSEGS 8 /* Minimum number of reserved
segments */
+/*
+ * bytes offset of secondary super block
+ */
+#define NILFS_SB2_OFFSET_BYTES(devsize) ((((devsize) >> 12) - 1) << 12)
/*
* Maximal count of links to a file
#define NILFS_SS_GC 0x0010 /* segment written for cleaner operation */
/**
+ * struct nilfs_btree_node - B-tree node
+ * @bn_flags: flags
+ * @bn_level: level
+ * @bn_nchildren: number of children
+ * @bn_pad: padding
+ */
+struct nilfs_btree_node {
+ __u8 bn_flags;
+ __u8 bn_level;
+ __le16 bn_nchildren;
+ __le32 bn_pad;
+};
+
+/* flags */
+#define NILFS_BTREE_NODE_ROOT 0x01
+
+/* level */
+#define NILFS_BTREE_LEVEL_DATA 0
+#define NILFS_BTREE_LEVEL_NODE_MIN (NILFS_BTREE_LEVEL_DATA + 1)
+#define NILFS_BTREE_LEVEL_MAX 14
+
+/**
* struct nilfs_palloc_group_desc - block group descriptor
* @pg_nfrees: number of free entries in block group
*/
};
/**
- * struct nilfs_dat_group_desc - block group descriptor
- * @dg_nfrees: number of free virtual block numbers in block group
- */
-struct nilfs_dat_group_desc {
- __le32 dg_nfrees;
-};
-
-
-/**
* struct nilfs_snapshot_list - snapshot list
* @ssl_next: next checkpoint number on snapshot list
* @ssl_prev: previous checkpoint number on snapshot list
NILFS_CHECKPOINT_SNAPSHOT,
NILFS_CHECKPOINT_INVALID,
NILFS_CHECKPOINT_SKETCH,
+ NILFS_CHECKPOINT_MINOR,
};
#define NILFS_CHECKPOINT_FNS(flag, name) \
NILFS_CHECKPOINT_FNS(SNAPSHOT, snapshot)
NILFS_CHECKPOINT_FNS(INVALID, invalid)
-NILFS_CHECKPOINT_FNS(SKETCH, sketch)
+NILFS_CHECKPOINT_FNS(MINOR, minor)
/**
* struct nilfs_cpinfo - checkpoint information
* @ci_flags: flags
+ * @ci_pad: padding
* @ci_cno: checkpoint number
* @ci_create: creation timestamp
* @ci_nblk_inc: number of blocks incremented by this checkpoint
*/
struct nilfs_cpinfo {
__u32 ci_flags;
+ __u32 ci_pad;
__u64 ci_cno;
__u64 ci_create;
__u64 ci_nblk_inc;
NILFS_CPINFO_FNS(SNAPSHOT, snapshot)
NILFS_CPINFO_FNS(INVALID, invalid)
-NILFS_CPINFO_FNS(SKETCH, sketch)
+NILFS_CPINFO_FNS(MINOR, minor)
/**
NILFS_SEGMENT_USAGE_DIRTY,
NILFS_SEGMENT_USAGE_ERROR,
- /* on-memory only */
- NILFS_SEGMENT_USAGE_VOLATILE_ACTIVE,
/* ... */
};
NILFS_SEGMENT_USAGE_FNS(ACTIVE, active)
NILFS_SEGMENT_USAGE_FNS(DIRTY, dirty)
NILFS_SEGMENT_USAGE_FNS(ERROR, error)
-NILFS_SEGMENT_USAGE_FNS(VOLATILE_ACTIVE, volatile_active)
static inline void
nilfs_segment_usage_set_clean(struct nilfs_segment_usage *su)
NILFS_SUINFO_FNS(ACTIVE, active)
NILFS_SUINFO_FNS(DIRTY, dirty)
NILFS_SUINFO_FNS(ERROR, error)
-NILFS_SUINFO_FNS(VOLATILE_ACTIVE, volatile_active)
static inline int nilfs_suinfo_clean(const struct nilfs_suinfo *si)
{
*/
struct nilfs_cpmode {
__u64 cm_cno;
- int cm_mode;
+ __u32 cm_mode;
+ __u32 cm_pad;
};
/**
* @v_base:
* @v_nmembs:
* @v_size:
- * @v_index:
* @v_flags:
+ * @v_index:
*/
struct nilfs_argv {
- void *v_base;
- size_t v_nmembs; /* number of members */
- size_t v_size; /* size of members */
- int v_index;
- int v_flags;
+ __u64 v_base;
+ __u32 v_nmembs; /* number of members */
+ __u16 v_size; /* size of members */
+ __u16 v_flags;
+ __u64 v_index;
};
/**
* @ss_nsegs: number of segments
* @ss_ncleansegs: number of clean segments
* @ss_ndirtysegs: number of dirty segments
- * @ss_ctime:
- * @ss_nongc_ctime:
+ * @ss_ctime: creation time of the last segment
+ * @ss_nongc_ctime: creation time of the last segment not for GC
+ * @ss_prot_seq: least sequence number of segments which must not be reclaimed
*/
struct nilfs_sustat {
__u64 ss_nsegs;
__u64 ss_ncleansegs;
__u64 ss_ndirtysegs;
- time_t ss_ctime;
- time_t ss_nongc_ctime;
+ __u64 ss_ctime;
+ __u64 ss_nongc_ctime;
+ __u64 ss_prot_seq;
};
/**
__u64 vd_blocknr;
__u64 vd_offset;
__u32 vd_flags;
+ __u32 vd_pad;
};
/**
__u64 bd_blocknr;
__u64 bd_offset;
__u32 bd_level;
-};
-
-#define NILFS_TIMEDWAIT_WRITE_LOCKED 0x1
-#define NILFS_TIMEDWAIT_SEG_WRITE 0x2
-
-/**
- * struct nilfs_wait_cond -
- */
-struct nilfs_wait_cond {
- int wc_cond;
- int wc_flags;
- struct timespec wc_timeout;
+ __u32 bd_pad;
};
#define NILFS_IOCTL_IDENT 'n'
_IOWR(NILFS_IOCTL_IDENT, 0x87, struct nilfs_argv)
#define NILFS_IOCTL_CLEAN_SEGMENTS \
_IOW(NILFS_IOCTL_IDENT, 0x88, struct nilfs_argv[5])
-#define NILFS_IOCTL_TIMEDWAIT \
- _IOWR(NILFS_IOCTL_IDENT, 0x89, struct nilfs_wait_cond)
#define NILFS_IOCTL_SYNC \
_IOR(NILFS_IOCTL_IDENT, 0x8A, __u64)
#define NILFS_IOCTL_RESIZE \
_IOW(NILFS_IOCTL_IDENT, 0x8B, __u64)
-/* compat_ioctl */
-#ifdef CONFIG_COMPAT
-#include <linux/compat.h>
-
-struct nilfs_cpmode32 {
- __u64 cm_cno;
- compat_int_t cm_mode;
-};
-
-struct nilfs_argv32 {
- compat_caddr_t v_base;
- compat_size_t v_nmembs;
- compat_size_t v_size;
- compat_int_t v_index;
- compat_int_t v_flags;
-};
-
-struct nilfs_sustat32 {
- __u64 ss_nsegs;
- __u64 ss_ncleansegs;
- __u64 ss_ndirtysegs;
- compat_time_t ss_ctime;
- compat_time_t ss_nongc_ctime;
-};
-
-struct nilfs_wait_cond32 {
- compat_int_t wc_cond;
- compat_int_t wc_flags;
- struct compat_timespec wc_timeout;
-};
-
-#define NILFS_IOCTL32_CHANGE_CPMODE \
- _IOW(NILFS_IOCTL_IDENT, 0x80, struct nilfs_cpmode32)
-#define NILFS_IOCTL32_GET_CPINFO \
- _IOR(NILFS_IOCTL_IDENT, 0x82, struct nilfs_argv32)
-#define NILFS_IOCTL32_GET_SUINFO \
- _IOR(NILFS_IOCTL_IDENT, 0x84, struct nilfs_argv32)
-#define NILFS_IOCTL32_GET_SUSTAT \
- _IOR(NILFS_IOCTL_IDENT, 0x85, struct nilfs_sustat32)
-#define NILFS_IOCTL32_GET_VINFO \
- _IOWR(NILFS_IOCTL_IDENT, 0x86, struct nilfs_argv32)
-#define NILFS_IOCTL32_GET_BDESCS \
- _IOWR(NILFS_IOCTL_IDENT, 0x87, struct nilfs_argv32)
-#define NILFS_IOCTL32_CLEAN_SEGMENTS \
- _IOW(NILFS_IOCTL_IDENT, 0x88, struct nilfs_argv32[5])
-#define NILFS_IOCTL32_TIMEDWAIT \
- _IOWR(NILFS_IOCTL_IDENT, 0x89, struct nilfs_wait_cond32)
-#endif /* CONFIG_COMPAT */
-
#endif /* _LINUX_NILFS_FS_H */
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