12bf93a429
This patch improves the superblock .to_text() methods and adds methods for all types that were missing them. It also improves printbufs by allowing them to specfiy what units we want to be printing in, and adds new wrapper methods for unifying our kernel and userspace environments. Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
93 lines
2.3 KiB
C
93 lines
2.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef _BCACHEFS_DISK_GROUPS_H
|
|
#define _BCACHEFS_DISK_GROUPS_H
|
|
|
|
extern const struct bch_sb_field_ops bch_sb_field_ops_disk_groups;
|
|
|
|
static inline unsigned disk_groups_nr(struct bch_sb_field_disk_groups *groups)
|
|
{
|
|
return groups
|
|
? (vstruct_end(&groups->field) -
|
|
(void *) &groups->entries[0]) / sizeof(struct bch_disk_group)
|
|
: 0;
|
|
}
|
|
|
|
struct target {
|
|
enum {
|
|
TARGET_NULL,
|
|
TARGET_DEV,
|
|
TARGET_GROUP,
|
|
} type;
|
|
union {
|
|
unsigned dev;
|
|
unsigned group;
|
|
};
|
|
};
|
|
|
|
#define TARGET_DEV_START 1
|
|
#define TARGET_GROUP_START (256 + TARGET_DEV_START)
|
|
|
|
static inline u16 dev_to_target(unsigned dev)
|
|
{
|
|
return TARGET_DEV_START + dev;
|
|
}
|
|
|
|
static inline u16 group_to_target(unsigned group)
|
|
{
|
|
return TARGET_GROUP_START + group;
|
|
}
|
|
|
|
static inline struct target target_decode(unsigned target)
|
|
{
|
|
if (target >= TARGET_GROUP_START)
|
|
return (struct target) {
|
|
.type = TARGET_GROUP,
|
|
.group = target - TARGET_GROUP_START
|
|
};
|
|
|
|
if (target >= TARGET_DEV_START)
|
|
return (struct target) {
|
|
.type = TARGET_DEV,
|
|
.group = target - TARGET_DEV_START
|
|
};
|
|
|
|
return (struct target) { .type = TARGET_NULL };
|
|
}
|
|
|
|
const struct bch_devs_mask *bch2_target_to_mask(struct bch_fs *, unsigned);
|
|
|
|
static inline struct bch_devs_mask target_rw_devs(struct bch_fs *c,
|
|
enum bch_data_type data_type,
|
|
u16 target)
|
|
{
|
|
struct bch_devs_mask devs = c->rw_devs[data_type];
|
|
const struct bch_devs_mask *t = bch2_target_to_mask(c, target);
|
|
|
|
if (t)
|
|
bitmap_and(devs.d, devs.d, t->d, BCH_SB_MEMBERS_MAX);
|
|
return devs;
|
|
}
|
|
|
|
bool bch2_dev_in_target(struct bch_fs *, unsigned, unsigned);
|
|
|
|
int bch2_disk_path_find(struct bch_sb_handle *, const char *);
|
|
|
|
/* Exported for userspace bcachefs-tools: */
|
|
int bch2_disk_path_find_or_create(struct bch_sb_handle *, const char *);
|
|
|
|
void bch2_disk_path_to_text(struct printbuf *, struct bch_sb *, unsigned);
|
|
|
|
void bch2_sb_target_to_text(struct printbuf *, struct bch_sb *, u64);
|
|
|
|
int bch2_opt_target_parse(struct bch_fs *, const char *, u64 *);
|
|
void bch2_opt_target_to_text(struct printbuf *, struct bch_fs *, u64);
|
|
|
|
int bch2_sb_disk_groups_to_cpu(struct bch_fs *);
|
|
|
|
int bch2_dev_group_set(struct bch_fs *, struct bch_dev *, const char *);
|
|
|
|
const char *bch2_sb_validate_disk_groups(struct bch_sb *,
|
|
struct bch_sb_field *);
|
|
|
|
#endif /* _BCACHEFS_DISK_GROUPS_H */
|