mirror of
https://github.com/torvalds/linux.git
synced 2024-11-28 23:21:31 +00:00
d97de0d017
bkey_fsck_err() was added as an interface that looks like fsck_err(), but previously all it did was ensure that the appropriate error counter was incremented in the superblock. This is a cleanup and bugfix patch that converts it to a wrapper around fsck_err(). This is needed to fix an issue with the upgrade path to disk_accounting_v3, where the "silent fix" error list now includes bkey_fsck errors; fsck_err() handles this in a unified way, and since we need to change printing of bkey fsck errors from the caller to the inner bkey_fsck_err() calls, this ends up being a pretty big change. Als,, rename .invalid() methods to .validate(), for clarity, while we're changing the function signature anyways (to drop the printbuf argument). Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
264 lines
6.6 KiB
C
264 lines
6.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef _BCACHEFS_EC_H
|
|
#define _BCACHEFS_EC_H
|
|
|
|
#include "ec_types.h"
|
|
#include "buckets_types.h"
|
|
#include "extents_types.h"
|
|
|
|
enum bch_validate_flags;
|
|
|
|
int bch2_stripe_validate(struct bch_fs *, struct bkey_s_c, enum bch_validate_flags);
|
|
void bch2_stripe_to_text(struct printbuf *, struct bch_fs *,
|
|
struct bkey_s_c);
|
|
int bch2_trigger_stripe(struct btree_trans *, enum btree_id, unsigned,
|
|
struct bkey_s_c, struct bkey_s,
|
|
enum btree_iter_update_trigger_flags);
|
|
|
|
#define bch2_bkey_ops_stripe ((struct bkey_ops) { \
|
|
.key_validate = bch2_stripe_validate, \
|
|
.val_to_text = bch2_stripe_to_text, \
|
|
.swab = bch2_ptr_swab, \
|
|
.trigger = bch2_trigger_stripe, \
|
|
.min_val_size = 8, \
|
|
})
|
|
|
|
static inline unsigned stripe_csums_per_device(const struct bch_stripe *s)
|
|
{
|
|
return DIV_ROUND_UP(le16_to_cpu(s->sectors),
|
|
1 << s->csum_granularity_bits);
|
|
}
|
|
|
|
static inline unsigned stripe_csum_offset(const struct bch_stripe *s,
|
|
unsigned dev, unsigned csum_idx)
|
|
{
|
|
EBUG_ON(s->csum_type >= BCH_CSUM_NR);
|
|
|
|
unsigned csum_bytes = bch_crc_bytes[s->csum_type];
|
|
|
|
return sizeof(struct bch_stripe) +
|
|
sizeof(struct bch_extent_ptr) * s->nr_blocks +
|
|
(dev * stripe_csums_per_device(s) + csum_idx) * csum_bytes;
|
|
}
|
|
|
|
static inline unsigned stripe_blockcount_offset(const struct bch_stripe *s,
|
|
unsigned idx)
|
|
{
|
|
return stripe_csum_offset(s, s->nr_blocks, 0) +
|
|
sizeof(u16) * idx;
|
|
}
|
|
|
|
static inline unsigned stripe_blockcount_get(const struct bch_stripe *s,
|
|
unsigned idx)
|
|
{
|
|
return le16_to_cpup((void *) s + stripe_blockcount_offset(s, idx));
|
|
}
|
|
|
|
static inline void stripe_blockcount_set(struct bch_stripe *s,
|
|
unsigned idx, unsigned v)
|
|
{
|
|
__le16 *p = (void *) s + stripe_blockcount_offset(s, idx);
|
|
|
|
*p = cpu_to_le16(v);
|
|
}
|
|
|
|
static inline unsigned stripe_val_u64s(const struct bch_stripe *s)
|
|
{
|
|
return DIV_ROUND_UP(stripe_blockcount_offset(s, s->nr_blocks),
|
|
sizeof(u64));
|
|
}
|
|
|
|
static inline void *stripe_csum(struct bch_stripe *s,
|
|
unsigned block, unsigned csum_idx)
|
|
{
|
|
EBUG_ON(block >= s->nr_blocks);
|
|
EBUG_ON(csum_idx >= stripe_csums_per_device(s));
|
|
|
|
return (void *) s + stripe_csum_offset(s, block, csum_idx);
|
|
}
|
|
|
|
static inline struct bch_csum stripe_csum_get(struct bch_stripe *s,
|
|
unsigned block, unsigned csum_idx)
|
|
{
|
|
struct bch_csum csum = { 0 };
|
|
|
|
memcpy(&csum, stripe_csum(s, block, csum_idx), bch_crc_bytes[s->csum_type]);
|
|
return csum;
|
|
}
|
|
|
|
static inline void stripe_csum_set(struct bch_stripe *s,
|
|
unsigned block, unsigned csum_idx,
|
|
struct bch_csum csum)
|
|
{
|
|
memcpy(stripe_csum(s, block, csum_idx), &csum, bch_crc_bytes[s->csum_type]);
|
|
}
|
|
|
|
static inline bool __bch2_ptr_matches_stripe(const struct bch_extent_ptr *stripe_ptr,
|
|
const struct bch_extent_ptr *data_ptr,
|
|
unsigned sectors)
|
|
{
|
|
return data_ptr->dev == stripe_ptr->dev &&
|
|
data_ptr->gen == stripe_ptr->gen &&
|
|
data_ptr->offset >= stripe_ptr->offset &&
|
|
data_ptr->offset < stripe_ptr->offset + sectors;
|
|
}
|
|
|
|
static inline bool bch2_ptr_matches_stripe(const struct bch_stripe *s,
|
|
struct extent_ptr_decoded p)
|
|
{
|
|
unsigned nr_data = s->nr_blocks - s->nr_redundant;
|
|
|
|
BUG_ON(!p.has_ec);
|
|
|
|
if (p.ec.block >= nr_data)
|
|
return false;
|
|
|
|
return __bch2_ptr_matches_stripe(&s->ptrs[p.ec.block], &p.ptr,
|
|
le16_to_cpu(s->sectors));
|
|
}
|
|
|
|
static inline bool bch2_ptr_matches_stripe_m(const struct gc_stripe *m,
|
|
struct extent_ptr_decoded p)
|
|
{
|
|
unsigned nr_data = m->nr_blocks - m->nr_redundant;
|
|
|
|
BUG_ON(!p.has_ec);
|
|
|
|
if (p.ec.block >= nr_data)
|
|
return false;
|
|
|
|
return __bch2_ptr_matches_stripe(&m->ptrs[p.ec.block], &p.ptr,
|
|
m->sectors);
|
|
}
|
|
|
|
struct bch_read_bio;
|
|
|
|
struct ec_stripe_buf {
|
|
/* might not be buffering the entire stripe: */
|
|
unsigned offset;
|
|
unsigned size;
|
|
unsigned long valid[BITS_TO_LONGS(BCH_BKEY_PTRS_MAX)];
|
|
|
|
void *data[BCH_BKEY_PTRS_MAX];
|
|
|
|
__BKEY_PADDED(key, 255);
|
|
};
|
|
|
|
struct ec_stripe_head;
|
|
|
|
enum ec_stripe_ref {
|
|
STRIPE_REF_io,
|
|
STRIPE_REF_stripe,
|
|
STRIPE_REF_NR
|
|
};
|
|
|
|
struct ec_stripe_new {
|
|
struct bch_fs *c;
|
|
struct ec_stripe_head *h;
|
|
struct mutex lock;
|
|
struct list_head list;
|
|
|
|
struct hlist_node hash;
|
|
u64 idx;
|
|
|
|
struct closure iodone;
|
|
|
|
atomic_t ref[STRIPE_REF_NR];
|
|
|
|
int err;
|
|
|
|
u8 nr_data;
|
|
u8 nr_parity;
|
|
bool allocated;
|
|
bool pending;
|
|
bool have_existing_stripe;
|
|
|
|
unsigned long blocks_gotten[BITS_TO_LONGS(BCH_BKEY_PTRS_MAX)];
|
|
unsigned long blocks_allocated[BITS_TO_LONGS(BCH_BKEY_PTRS_MAX)];
|
|
open_bucket_idx_t blocks[BCH_BKEY_PTRS_MAX];
|
|
struct disk_reservation res;
|
|
|
|
struct ec_stripe_buf new_stripe;
|
|
struct ec_stripe_buf existing_stripe;
|
|
};
|
|
|
|
struct ec_stripe_head {
|
|
struct list_head list;
|
|
struct mutex lock;
|
|
|
|
unsigned target;
|
|
unsigned algo;
|
|
unsigned redundancy;
|
|
enum bch_watermark watermark;
|
|
|
|
struct bch_devs_mask devs;
|
|
unsigned nr_active_devs;
|
|
|
|
unsigned blocksize;
|
|
|
|
struct dev_stripe_state block_stripe;
|
|
struct dev_stripe_state parity_stripe;
|
|
|
|
struct ec_stripe_new *s;
|
|
};
|
|
|
|
int bch2_ec_read_extent(struct btree_trans *, struct bch_read_bio *);
|
|
|
|
void *bch2_writepoint_ec_buf(struct bch_fs *, struct write_point *);
|
|
|
|
void bch2_ec_bucket_cancel(struct bch_fs *, struct open_bucket *);
|
|
|
|
int bch2_ec_stripe_new_alloc(struct bch_fs *, struct ec_stripe_head *);
|
|
|
|
void bch2_ec_stripe_head_put(struct bch_fs *, struct ec_stripe_head *);
|
|
struct ec_stripe_head *bch2_ec_stripe_head_get(struct btree_trans *,
|
|
unsigned, unsigned, unsigned,
|
|
enum bch_watermark, struct closure *);
|
|
|
|
void bch2_stripes_heap_update(struct bch_fs *, struct stripe *, size_t);
|
|
void bch2_stripes_heap_del(struct bch_fs *, struct stripe *, size_t);
|
|
void bch2_stripes_heap_insert(struct bch_fs *, struct stripe *, size_t);
|
|
|
|
void bch2_do_stripe_deletes(struct bch_fs *);
|
|
void bch2_ec_do_stripe_creates(struct bch_fs *);
|
|
void bch2_ec_stripe_new_free(struct bch_fs *, struct ec_stripe_new *);
|
|
|
|
static inline void ec_stripe_new_get(struct ec_stripe_new *s,
|
|
enum ec_stripe_ref ref)
|
|
{
|
|
atomic_inc(&s->ref[ref]);
|
|
}
|
|
|
|
static inline void ec_stripe_new_put(struct bch_fs *c, struct ec_stripe_new *s,
|
|
enum ec_stripe_ref ref)
|
|
{
|
|
BUG_ON(atomic_read(&s->ref[ref]) <= 0);
|
|
|
|
if (atomic_dec_and_test(&s->ref[ref]))
|
|
switch (ref) {
|
|
case STRIPE_REF_stripe:
|
|
bch2_ec_stripe_new_free(c, s);
|
|
break;
|
|
case STRIPE_REF_io:
|
|
bch2_ec_do_stripe_creates(c);
|
|
break;
|
|
default:
|
|
BUG();
|
|
}
|
|
}
|
|
|
|
void bch2_ec_stop_dev(struct bch_fs *, struct bch_dev *);
|
|
void bch2_fs_ec_stop(struct bch_fs *);
|
|
void bch2_fs_ec_flush(struct bch_fs *);
|
|
|
|
int bch2_stripes_read(struct bch_fs *);
|
|
|
|
void bch2_stripes_heap_to_text(struct printbuf *, struct bch_fs *);
|
|
void bch2_new_stripes_to_text(struct printbuf *, struct bch_fs *);
|
|
|
|
void bch2_fs_ec_exit(struct bch_fs *);
|
|
void bch2_fs_ec_init_early(struct bch_fs *);
|
|
int bch2_fs_ec_init(struct bch_fs *);
|
|
|
|
#endif /* _BCACHEFS_EC_H */
|