mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-14 07:44:21 +08:00
1f73cb4d34
These shouldn't always be fatal errors - logged op resume, in particular, and we want it as a parameter there. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
93 lines
3.0 KiB
C
93 lines
3.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef _BCACHEFS_SUBVOLUME_H
|
|
#define _BCACHEFS_SUBVOLUME_H
|
|
|
|
#include "darray.h"
|
|
#include "subvolume_types.h"
|
|
|
|
enum bch_validate_flags;
|
|
|
|
int bch2_check_subvols(struct bch_fs *);
|
|
int bch2_check_subvol_children(struct bch_fs *);
|
|
|
|
int bch2_subvolume_validate(struct bch_fs *, struct bkey_s_c, enum bch_validate_flags);
|
|
void bch2_subvolume_to_text(struct printbuf *, struct bch_fs *, struct bkey_s_c);
|
|
int bch2_subvolume_trigger(struct btree_trans *, enum btree_id, unsigned,
|
|
struct bkey_s_c, struct bkey_s,
|
|
enum btree_iter_update_trigger_flags);
|
|
|
|
#define bch2_bkey_ops_subvolume ((struct bkey_ops) { \
|
|
.key_validate = bch2_subvolume_validate, \
|
|
.val_to_text = bch2_subvolume_to_text, \
|
|
.trigger = bch2_subvolume_trigger, \
|
|
.min_val_size = 16, \
|
|
})
|
|
|
|
int bch2_subvol_has_children(struct btree_trans *, u32);
|
|
int bch2_subvolume_get(struct btree_trans *, unsigned,
|
|
bool, int, struct bch_subvolume *);
|
|
int __bch2_subvolume_get_snapshot(struct btree_trans *, u32,
|
|
u32 *, bool);
|
|
int bch2_subvolume_get_snapshot(struct btree_trans *, u32, u32 *);
|
|
|
|
int bch2_subvol_is_ro_trans(struct btree_trans *, u32);
|
|
int bch2_subvol_is_ro(struct bch_fs *, u32);
|
|
|
|
static inline struct bkey_s_c
|
|
bch2_btree_iter_peek_in_subvolume_upto_type(struct btree_iter *iter, struct bpos end,
|
|
u32 subvolid, unsigned flags)
|
|
{
|
|
u32 snapshot;
|
|
int ret = bch2_subvolume_get_snapshot(iter->trans, subvolid, &snapshot);
|
|
if (ret)
|
|
return bkey_s_c_err(ret);
|
|
|
|
bch2_btree_iter_set_snapshot(iter, snapshot);
|
|
return bch2_btree_iter_peek_upto_type(iter, end, flags);
|
|
}
|
|
|
|
#define for_each_btree_key_in_subvolume_upto_continue(_trans, _iter, \
|
|
_end, _subvolid, _flags, _k, _do) \
|
|
({ \
|
|
struct bkey_s_c _k; \
|
|
int _ret3 = 0; \
|
|
\
|
|
do { \
|
|
_ret3 = lockrestart_do(_trans, ({ \
|
|
(_k) = bch2_btree_iter_peek_in_subvolume_upto_type(&(_iter), \
|
|
_end, _subvolid, (_flags)); \
|
|
if (!(_k).k) \
|
|
break; \
|
|
\
|
|
bkey_err(_k) ?: (_do); \
|
|
})); \
|
|
} while (!_ret3 && bch2_btree_iter_advance(&(_iter))); \
|
|
\
|
|
bch2_trans_iter_exit((_trans), &(_iter)); \
|
|
_ret3; \
|
|
})
|
|
|
|
#define for_each_btree_key_in_subvolume_upto(_trans, _iter, _btree_id, \
|
|
_start, _end, _subvolid, _flags, _k, _do) \
|
|
({ \
|
|
struct btree_iter _iter; \
|
|
bch2_trans_iter_init((_trans), &(_iter), (_btree_id), \
|
|
(_start), (_flags)); \
|
|
\
|
|
for_each_btree_key_in_subvolume_upto_continue(_trans, _iter, \
|
|
_end, _subvolid, _flags, _k, _do); \
|
|
})
|
|
|
|
int bch2_delete_dead_snapshots(struct bch_fs *);
|
|
void bch2_delete_dead_snapshots_async(struct bch_fs *);
|
|
|
|
int bch2_subvolume_unlink(struct btree_trans *, u32);
|
|
int bch2_subvolume_create(struct btree_trans *, u64, u32, u32, u32 *, u32 *, bool);
|
|
|
|
int bch2_initialize_subvolumes(struct bch_fs *);
|
|
int bch2_fs_upgrade_for_subvolumes(struct bch_fs *);
|
|
|
|
int bch2_fs_subvolumes_init(struct bch_fs *);
|
|
|
|
#endif /* _BCACHEFS_SUBVOLUME_H */
|