bcachefs-tools/libbcachefs/inode.h
2017-03-19 17:31:47 -08:00

58 lines
1.5 KiB
C

#ifndef _BCACHE_INODE_H
#define _BCACHE_INODE_H
#include <linux/math64.h>
extern const struct bkey_ops bch2_bkey_inode_ops;
struct bch_inode_unpacked {
u64 inum;
__le64 i_hash_seed;
u32 i_flags;
u16 i_mode;
#define BCH_INODE_FIELD(_name, _bits) u##_bits _name;
BCH_INODE_FIELDS()
#undef BCH_INODE_FIELD
};
struct bkey_inode_buf {
struct bkey_i_inode inode;
#define BCH_INODE_FIELD(_name, _bits) + 8 + _bits / 8
u8 _pad[0 + BCH_INODE_FIELDS()];
#undef BCH_INODE_FIELD
} __packed;
void bch2_inode_pack(struct bkey_inode_buf *, const struct bch_inode_unpacked *);
int bch2_inode_unpack(struct bkey_s_c_inode, struct bch_inode_unpacked *);
void bch2_inode_init(struct bch_fs *, struct bch_inode_unpacked *,
uid_t, gid_t, umode_t, dev_t);
int bch2_inode_create(struct bch_fs *, struct bkey_i *, u64, u64, u64 *);
int bch2_inode_truncate(struct bch_fs *, u64, u64,
struct extent_insert_hook *, u64 *);
int bch2_inode_rm(struct bch_fs *, u64);
int bch2_inode_find_by_inum(struct bch_fs *, u64,
struct bch_inode_unpacked *);
int bch2_cached_dev_inode_find_by_uuid(struct bch_fs *, uuid_le *,
struct bkey_i_inode_blockdev *);
static inline struct timespec bch2_time_to_timespec(struct bch_fs *c, u64 time)
{
return ns_to_timespec(time * c->sb.time_precision + c->sb.time_base_lo);
}
static inline u64 timespec_to_bch2_time(struct bch_fs *c, struct timespec ts)
{
s64 ns = timespec_to_ns(&ts) - c->sb.time_base_lo;
if (c->sb.time_precision == 1)
return ns;
return div_s64(ns, c->sb.time_precision);
}
#endif