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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _BCACHE_FEATURES_H
#define _BCACHE_FEATURES_H
#include <linux/bcache.h>
#include <linux/kernel.h>
#include <linux/types.h>
#define BCH_FEATURE_COMPAT 0
#define BCH_FEATURE_RO_COMPAT 1
#define BCH_FEATURE_INCOMPAT 2
#define BCH_FEATURE_TYPE_MASK 0x03
/* Feature set definition */
/* Incompat feature set */
#define BCH_FEATURE_INCOMPAT_LARGE_BUCKET 0x0001 /* 32bit bucket size */
#define BCH_FEATURE_COMPAT_SUUP 0
#define BCH_FEATURE_RO_COMPAT_SUUP 0
#define BCH_FEATURE_INCOMPAT_SUUP BCH_FEATURE_INCOMPAT_LARGE_BUCKET
#define BCH_HAS_COMPAT_FEATURE(sb, mask) \
((sb)->feature_compat & (mask))
#define BCH_HAS_RO_COMPAT_FEATURE(sb, mask) \
((sb)->feature_ro_compat & (mask))
#define BCH_HAS_INCOMPAT_FEATURE(sb, mask) \
((sb)->feature_incompat & (mask))
#define BCH_FEATURE_COMPAT_FUNCS(name, flagname) \
static inline int bch_has_feature_##name(struct cache_sb *sb) \
{ \
return (((sb)->feature_compat & \
BCH##_FEATURE_COMPAT_##flagname) != 0); \
} \
static inline void bch_set_feature_##name(struct cache_sb *sb) \
{ \
(sb)->feature_compat |= \
BCH##_FEATURE_COMPAT_##flagname; \
} \
static inline void bch_clear_feature_##name(struct cache_sb *sb) \
{ \
(sb)->feature_compat &= \
~BCH##_FEATURE_COMPAT_##flagname; \
}
#define BCH_FEATURE_RO_COMPAT_FUNCS(name, flagname) \
static inline int bch_has_feature_##name(struct cache_sb *sb) \
{ \
return (((sb)->feature_ro_compat & \
BCH##_FEATURE_RO_COMPAT_##flagname) != 0); \
} \
static inline void bch_set_feature_##name(struct cache_sb *sb) \
{ \
(sb)->feature_ro_compat |= \
BCH##_FEATURE_RO_COMPAT_##flagname; \
} \
static inline void bch_clear_feature_##name(struct cache_sb *sb) \
{ \
(sb)->feature_ro_compat &= \
~BCH##_FEATURE_RO_COMPAT_##flagname; \
}
#define BCH_FEATURE_INCOMPAT_FUNCS(name, flagname) \
static inline int bch_has_feature_##name(struct cache_sb *sb) \
{ \
return (((sb)->feature_incompat & \
BCH##_FEATURE_INCOMPAT_##flagname) != 0); \
} \
static inline void bch_set_feature_##name(struct cache_sb *sb) \
{ \
(sb)->feature_incompat |= \
BCH##_FEATURE_INCOMPAT_##flagname; \
} \
static inline void bch_clear_feature_##name(struct cache_sb *sb) \
{ \
(sb)->feature_incompat &= \
~BCH##_FEATURE_INCOMPAT_##flagname; \
}
BCH_FEATURE_INCOMPAT_FUNCS(large_bucket, LARGE_BUCKET);
int bch_print_cache_set_feature_compat(struct cache_set *c, char *buf, int size);
int bch_print_cache_set_feature_ro_compat(struct cache_set *c, char *buf, int size);
int bch_print_cache_set_feature_incompat(struct cache_set *c, char *buf, int size);
#endif
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