2017-03-17 06:18:50 +00:00
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/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _BCACHEFS_EXTENTS_H
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#define _BCACHEFS_EXTENTS_H
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#include "bcachefs.h"
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#include "bkey.h"
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#include "extents_types.h"
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struct bch_fs;
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2019-03-14 02:44:04 +00:00
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struct btree_trans;
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2017-03-17 06:18:50 +00:00
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2018-11-01 19:10:01 +00:00
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/* extent entries: */
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2017-03-17 06:18:50 +00:00
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2019-07-25 17:52:14 +00:00
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#define extent_entry_last(_e) \
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((typeof(&(_e).v->start[0])) bkey_val_end(_e))
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2017-03-17 06:18:50 +00:00
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2018-11-01 19:10:01 +00:00
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#define entry_to_ptr(_entry) \
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({ \
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EBUG_ON((_entry) && !extent_entry_is_ptr(_entry)); \
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\
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__builtin_choose_expr( \
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type_is_exact(_entry, const union bch_extent_entry *), \
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(const struct bch_extent_ptr *) (_entry), \
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(struct bch_extent_ptr *) (_entry)); \
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})
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2017-03-17 06:18:50 +00:00
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2018-11-01 19:10:01 +00:00
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/* downcast, preserves const */
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#define to_entry(_entry) \
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({ \
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BUILD_BUG_ON(!type_is(_entry, union bch_extent_crc *) && \
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!type_is(_entry, struct bch_extent_ptr *) && \
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!type_is(_entry, struct bch_extent_stripe_ptr *)); \
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\
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__builtin_choose_expr( \
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(type_is_exact(_entry, const union bch_extent_crc *) || \
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type_is_exact(_entry, const struct bch_extent_ptr *) ||\
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type_is_exact(_entry, const struct bch_extent_stripe_ptr *)),\
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(const union bch_extent_entry *) (_entry), \
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(union bch_extent_entry *) (_entry)); \
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})
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2017-03-17 06:18:50 +00:00
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2019-11-16 21:25:58 +00:00
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#define extent_entry_next(_entry) \
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((typeof(_entry)) ((void *) (_entry) + extent_entry_bytes(_entry)))
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2017-03-17 06:18:50 +00:00
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static inline unsigned
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__extent_entry_type(const union bch_extent_entry *e)
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{
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return e->type ? __ffs(e->type) : BCH_EXTENT_ENTRY_MAX;
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}
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static inline enum bch_extent_entry_type
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extent_entry_type(const union bch_extent_entry *e)
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{
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int ret = __ffs(e->type);
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EBUG_ON(ret < 0 || ret >= BCH_EXTENT_ENTRY_MAX);
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return ret;
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}
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static inline size_t extent_entry_bytes(const union bch_extent_entry *entry)
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{
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switch (extent_entry_type(entry)) {
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2018-09-30 22:39:20 +00:00
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#define x(f, n) \
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case BCH_EXTENT_ENTRY_##f: \
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return sizeof(struct bch_extent_##f);
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BCH_EXTENT_ENTRY_TYPES()
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#undef x
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2017-03-17 06:18:50 +00:00
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default:
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BUG();
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}
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}
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static inline size_t extent_entry_u64s(const union bch_extent_entry *entry)
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{
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return extent_entry_bytes(entry) / sizeof(u64);
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}
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static inline bool extent_entry_is_ptr(const union bch_extent_entry *e)
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{
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2018-09-28 01:08:39 +00:00
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switch (extent_entry_type(e)) {
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case BCH_EXTENT_ENTRY_ptr:
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return true;
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default:
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return false;
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}
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2017-03-17 06:18:50 +00:00
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}
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static inline bool extent_entry_is_crc(const union bch_extent_entry *e)
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{
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2018-09-28 01:08:39 +00:00
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switch (extent_entry_type(e)) {
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case BCH_EXTENT_ENTRY_crc32:
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case BCH_EXTENT_ENTRY_crc64:
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case BCH_EXTENT_ENTRY_crc128:
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return true;
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default:
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return false;
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}
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2017-03-17 06:18:50 +00:00
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}
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union bch_extent_crc {
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u8 type;
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struct bch_extent_crc32 crc32;
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struct bch_extent_crc64 crc64;
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struct bch_extent_crc128 crc128;
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};
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#define __entry_to_crc(_entry) \
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__builtin_choose_expr( \
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type_is_exact(_entry, const union bch_extent_entry *), \
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(const union bch_extent_crc *) (_entry), \
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(union bch_extent_crc *) (_entry))
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#define entry_to_crc(_entry) \
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({ \
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EBUG_ON((_entry) && !extent_entry_is_crc(_entry)); \
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\
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__entry_to_crc(_entry); \
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})
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static inline struct bch_extent_crc_unpacked
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bch2_extent_crc_unpack(const struct bkey *k, const union bch_extent_crc *crc)
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{
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#define common_fields(_crc) \
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.csum_type = _crc.csum_type, \
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.compression_type = _crc.compression_type, \
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.compressed_size = _crc._compressed_size + 1, \
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.uncompressed_size = _crc._uncompressed_size + 1, \
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.offset = _crc.offset, \
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.live_size = k->size
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2018-10-02 20:40:12 +00:00
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if (!crc)
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2017-03-17 06:18:50 +00:00
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return (struct bch_extent_crc_unpacked) {
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.compressed_size = k->size,
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.uncompressed_size = k->size,
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.live_size = k->size,
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};
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2018-10-02 20:40:12 +00:00
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switch (extent_entry_type(to_entry(crc))) {
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case BCH_EXTENT_ENTRY_crc32: {
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2017-03-17 06:18:50 +00:00
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struct bch_extent_crc_unpacked ret = (struct bch_extent_crc_unpacked) {
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common_fields(crc->crc32),
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};
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*((__le32 *) &ret.csum.lo) = crc->crc32.csum;
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memcpy(&ret.csum.lo, &crc->crc32.csum,
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sizeof(crc->crc32.csum));
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return ret;
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}
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2018-10-02 20:40:12 +00:00
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case BCH_EXTENT_ENTRY_crc64: {
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2017-03-17 06:18:50 +00:00
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struct bch_extent_crc_unpacked ret = (struct bch_extent_crc_unpacked) {
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common_fields(crc->crc64),
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.nonce = crc->crc64.nonce,
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.csum.lo = (__force __le64) crc->crc64.csum_lo,
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};
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*((__le16 *) &ret.csum.hi) = crc->crc64.csum_hi;
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return ret;
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}
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2018-10-02 20:40:12 +00:00
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case BCH_EXTENT_ENTRY_crc128: {
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2017-03-17 06:18:50 +00:00
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struct bch_extent_crc_unpacked ret = (struct bch_extent_crc_unpacked) {
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common_fields(crc->crc128),
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.nonce = crc->crc128.nonce,
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.csum = crc->crc128.csum,
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};
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return ret;
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}
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default:
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BUG();
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}
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#undef common_fields
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}
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2018-11-01 19:10:01 +00:00
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/* bkey_ptrs: generically over any key type that has ptrs */
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2017-03-17 06:18:50 +00:00
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2018-11-01 19:10:01 +00:00
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struct bkey_ptrs_c {
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const union bch_extent_entry *start;
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const union bch_extent_entry *end;
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};
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2017-03-17 06:18:50 +00:00
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2018-11-01 19:10:01 +00:00
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struct bkey_ptrs {
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union bch_extent_entry *start;
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union bch_extent_entry *end;
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};
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2017-03-17 06:18:50 +00:00
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2019-11-16 21:25:58 +00:00
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static inline struct bkey_ptrs_c bch2_bkey_ptrs_c(struct bkey_s_c k)
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{
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switch (k.k->type) {
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case KEY_TYPE_btree_ptr: {
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struct bkey_s_c_btree_ptr e = bkey_s_c_to_btree_ptr(k);
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return (struct bkey_ptrs_c) {
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to_entry(&e.v->start[0]),
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to_entry(extent_entry_last(e))
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};
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}
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case KEY_TYPE_extent: {
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struct bkey_s_c_extent e = bkey_s_c_to_extent(k);
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return (struct bkey_ptrs_c) {
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e.v->start,
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extent_entry_last(e)
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};
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}
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case KEY_TYPE_stripe: {
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struct bkey_s_c_stripe s = bkey_s_c_to_stripe(k);
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return (struct bkey_ptrs_c) {
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to_entry(&s.v->ptrs[0]),
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to_entry(&s.v->ptrs[s.v->nr_blocks]),
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};
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}
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case KEY_TYPE_reflink_v: {
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struct bkey_s_c_reflink_v r = bkey_s_c_to_reflink_v(k);
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2017-03-17 06:18:50 +00:00
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2019-11-16 21:25:58 +00:00
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return (struct bkey_ptrs_c) {
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r.v->start,
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bkey_val_end(r),
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};
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}
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default:
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return (struct bkey_ptrs_c) { NULL, NULL };
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}
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}
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static inline struct bkey_ptrs bch2_bkey_ptrs(struct bkey_s k)
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{
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struct bkey_ptrs_c p = bch2_bkey_ptrs_c(k.s_c);
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return (struct bkey_ptrs) {
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(void *) p.start,
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(void *) p.end
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};
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}
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2017-03-17 06:18:50 +00:00
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2018-11-01 19:10:01 +00:00
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#define __bkey_extent_entry_for_each_from(_start, _end, _entry) \
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for ((_entry) = (_start); \
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(_entry) < (_end); \
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(_entry) = extent_entry_next(_entry))
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2017-03-17 06:18:50 +00:00
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2018-11-01 19:10:01 +00:00
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#define __bkey_ptr_next(_ptr, _end) \
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2017-03-17 06:18:50 +00:00
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({ \
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2018-11-01 19:10:01 +00:00
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typeof(_end) _entry; \
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2017-03-17 06:18:50 +00:00
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\
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2018-11-01 19:10:01 +00:00
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__bkey_extent_entry_for_each_from(to_entry(_ptr), _end, _entry) \
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2018-09-28 01:08:39 +00:00
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if (extent_entry_is_ptr(_entry)) \
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break; \
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2017-03-17 06:18:50 +00:00
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\
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2018-11-01 19:10:01 +00:00
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_entry < (_end) ? entry_to_ptr(_entry) : NULL; \
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2017-03-17 06:18:50 +00:00
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})
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2018-11-01 19:10:01 +00:00
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#define bkey_extent_entry_for_each_from(_p, _entry, _start) \
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__bkey_extent_entry_for_each_from(_start, (_p).end, _entry)
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2018-09-28 01:08:39 +00:00
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2018-11-01 19:10:01 +00:00
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#define bkey_extent_entry_for_each(_p, _entry) \
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bkey_extent_entry_for_each_from(_p, _entry, _p.start)
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2017-03-17 06:18:50 +00:00
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2018-11-01 19:10:01 +00:00
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#define __bkey_for_each_ptr(_start, _end, _ptr) \
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for ((_ptr) = (_start); \
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((_ptr) = __bkey_ptr_next(_ptr, _end)); \
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(_ptr)++)
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2017-03-17 06:18:50 +00:00
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2018-11-01 19:10:01 +00:00
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#define bkey_ptr_next(_p, _ptr) \
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__bkey_ptr_next(_ptr, (_p).end)
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2017-03-17 06:18:50 +00:00
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2018-11-01 19:10:01 +00:00
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#define bkey_for_each_ptr(_p, _ptr) \
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__bkey_for_each_ptr(&(_p).start->ptr, (_p).end, _ptr)
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2017-03-17 06:18:50 +00:00
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2018-11-01 19:10:01 +00:00
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#define __bkey_ptr_next_decode(_k, _end, _ptr, _entry) \
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2017-03-17 06:18:50 +00:00
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({ \
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__label__ out; \
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\
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2018-11-01 19:13:19 +00:00
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(_ptr).idx = 0; \
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2019-10-08 22:45:29 +00:00
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(_ptr).has_ec = false; \
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2018-11-01 19:13:19 +00:00
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\
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2018-11-01 19:10:01 +00:00
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__bkey_extent_entry_for_each_from(_entry, _end, _entry) \
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2018-09-28 01:08:39 +00:00
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switch (extent_entry_type(_entry)) { \
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case BCH_EXTENT_ENTRY_ptr: \
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(_ptr).ptr = _entry->ptr; \
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2017-03-17 06:18:50 +00:00
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goto out; \
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2018-09-28 01:08:39 +00:00
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case BCH_EXTENT_ENTRY_crc32: \
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case BCH_EXTENT_ENTRY_crc64: \
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case BCH_EXTENT_ENTRY_crc128: \
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2018-11-01 19:10:01 +00:00
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(_ptr).crc = bch2_extent_crc_unpack(_k, \
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2018-09-28 01:08:39 +00:00
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entry_to_crc(_entry)); \
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break; \
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2018-11-01 19:13:19 +00:00
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case BCH_EXTENT_ENTRY_stripe_ptr: \
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2019-10-08 22:45:29 +00:00
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(_ptr).ec = _entry->stripe_ptr; \
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(_ptr).has_ec = true; \
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2018-11-01 19:13:19 +00:00
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break; \
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2017-03-17 06:18:50 +00:00
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} \
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out: \
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2018-11-01 19:10:01 +00:00
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_entry < (_end); \
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2017-03-17 06:18:50 +00:00
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})
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2018-11-01 19:10:01 +00:00
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#define __bkey_for_each_ptr_decode(_k, _start, _end, _ptr, _entry) \
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for ((_ptr).crc = bch2_extent_crc_unpack(_k, NULL), \
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(_entry) = _start; \
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__bkey_ptr_next_decode(_k, _end, _ptr, _entry); \
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2018-09-28 01:08:39 +00:00
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(_entry) = extent_entry_next(_entry))
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2017-03-17 06:18:50 +00:00
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2018-11-01 19:10:01 +00:00
|
|
|
#define bkey_for_each_ptr_decode(_k, _p, _ptr, _entry) \
|
|
|
|
__bkey_for_each_ptr_decode(_k, (_p).start, (_p).end, \
|
|
|
|
_ptr, _entry)
|
2017-03-17 06:18:50 +00:00
|
|
|
|
2019-07-25 17:52:14 +00:00
|
|
|
#define bkey_crc_next(_k, _start, _end, _crc, _iter) \
|
|
|
|
({ \
|
|
|
|
__bkey_extent_entry_for_each_from(_iter, _end, _iter) \
|
|
|
|
if (extent_entry_is_crc(_iter)) { \
|
|
|
|
(_crc) = bch2_extent_crc_unpack(_k, \
|
|
|
|
entry_to_crc(_iter)); \
|
|
|
|
break; \
|
|
|
|
} \
|
|
|
|
\
|
|
|
|
(_iter) < (_end); \
|
|
|
|
})
|
|
|
|
|
|
|
|
#define __bkey_for_each_crc(_k, _start, _end, _crc, _iter) \
|
|
|
|
for ((_crc) = bch2_extent_crc_unpack(_k, NULL), \
|
|
|
|
(_iter) = (_start); \
|
|
|
|
bkey_crc_next(_k, _start, _end, _crc, _iter); \
|
|
|
|
(_iter) = extent_entry_next(_iter))
|
|
|
|
|
|
|
|
#define bkey_for_each_crc(_k, _p, _crc, _iter) \
|
|
|
|
__bkey_for_each_crc(_k, (_p).start, (_p).end, _crc, _iter)
|
|
|
|
|
2019-11-16 21:25:58 +00:00
|
|
|
/* Iterate over pointers in KEY_TYPE_extent: */
|
2018-11-01 19:10:01 +00:00
|
|
|
|
2019-11-16 21:25:58 +00:00
|
|
|
#define extent_for_each_entry_from(_e, _entry, _start) \
|
|
|
|
__bkey_extent_entry_for_each_from(_start, \
|
|
|
|
extent_entry_last(_e),_entry)
|
2017-03-17 06:18:50 +00:00
|
|
|
|
2019-11-16 21:25:58 +00:00
|
|
|
#define extent_for_each_entry(_e, _entry) \
|
|
|
|
extent_for_each_entry_from(_e, _entry, (_e).v->start)
|
2017-03-17 06:18:50 +00:00
|
|
|
|
2019-11-16 21:25:58 +00:00
|
|
|
#define extent_ptr_next(_e, _ptr) \
|
|
|
|
__bkey_ptr_next(_ptr, extent_entry_last(_e))
|
2017-03-17 06:18:50 +00:00
|
|
|
|
2019-11-16 21:25:58 +00:00
|
|
|
#define extent_for_each_ptr(_e, _ptr) \
|
|
|
|
__bkey_for_each_ptr(&(_e).v->start->ptr, extent_entry_last(_e), _ptr)
|
2017-03-17 06:18:50 +00:00
|
|
|
|
2019-11-16 21:25:58 +00:00
|
|
|
#define extent_for_each_ptr_decode(_e, _ptr, _entry) \
|
|
|
|
__bkey_for_each_ptr_decode((_e).k, (_e).v->start, \
|
|
|
|
extent_entry_last(_e), _ptr, _entry)
|
2017-03-17 06:18:50 +00:00
|
|
|
|
2019-11-16 21:25:58 +00:00
|
|
|
/* utility code common to all keys with pointers: */
|
2018-11-01 19:10:01 +00:00
|
|
|
|
|
|
|
void bch2_mark_io_failure(struct bch_io_failures *,
|
|
|
|
struct extent_ptr_decoded *);
|
|
|
|
int bch2_bkey_pick_read_device(struct bch_fs *, struct bkey_s_c,
|
|
|
|
struct bch_io_failures *,
|
|
|
|
struct extent_ptr_decoded *);
|
|
|
|
|
2019-11-16 21:25:58 +00:00
|
|
|
/* KEY_TYPE_btree_ptr: */
|
2018-11-01 19:10:01 +00:00
|
|
|
|
|
|
|
const char *bch2_btree_ptr_invalid(const struct bch_fs *, struct bkey_s_c);
|
2019-09-14 14:47:14 +00:00
|
|
|
void bch2_btree_ptr_debugcheck(struct bch_fs *, struct bkey_s_c);
|
2018-11-01 19:10:01 +00:00
|
|
|
void bch2_btree_ptr_to_text(struct printbuf *, struct bch_fs *,
|
|
|
|
struct bkey_s_c);
|
|
|
|
|
|
|
|
#define bch2_bkey_ops_btree_ptr (struct bkey_ops) { \
|
|
|
|
.key_invalid = bch2_btree_ptr_invalid, \
|
|
|
|
.key_debugcheck = bch2_btree_ptr_debugcheck, \
|
|
|
|
.val_to_text = bch2_btree_ptr_to_text, \
|
|
|
|
.swab = bch2_ptr_swab, \
|
|
|
|
}
|
|
|
|
|
2019-11-16 21:25:58 +00:00
|
|
|
/* KEY_TYPE_extent: */
|
2018-11-01 19:10:01 +00:00
|
|
|
|
|
|
|
const char *bch2_extent_invalid(const struct bch_fs *, struct bkey_s_c);
|
2019-09-14 14:47:14 +00:00
|
|
|
void bch2_extent_debugcheck(struct bch_fs *, struct bkey_s_c);
|
2018-11-01 19:10:01 +00:00
|
|
|
void bch2_extent_to_text(struct printbuf *, struct bch_fs *, struct bkey_s_c);
|
|
|
|
enum merge_result bch2_extent_merge(struct bch_fs *,
|
2019-06-09 20:56:16 +00:00
|
|
|
struct bkey_s, struct bkey_s);
|
2018-11-01 19:10:01 +00:00
|
|
|
|
|
|
|
#define bch2_bkey_ops_extent (struct bkey_ops) { \
|
|
|
|
.key_invalid = bch2_extent_invalid, \
|
|
|
|
.key_debugcheck = bch2_extent_debugcheck, \
|
|
|
|
.val_to_text = bch2_extent_to_text, \
|
|
|
|
.swab = bch2_ptr_swab, \
|
|
|
|
.key_normalize = bch2_extent_normalize, \
|
|
|
|
.key_merge = bch2_extent_merge, \
|
|
|
|
}
|
|
|
|
|
2019-11-16 21:25:58 +00:00
|
|
|
/* KEY_TYPE_reservation: */
|
2018-11-01 19:10:01 +00:00
|
|
|
|
|
|
|
const char *bch2_reservation_invalid(const struct bch_fs *, struct bkey_s_c);
|
|
|
|
void bch2_reservation_to_text(struct printbuf *, struct bch_fs *, struct bkey_s_c);
|
|
|
|
enum merge_result bch2_reservation_merge(struct bch_fs *,
|
2019-06-09 20:56:16 +00:00
|
|
|
struct bkey_s, struct bkey_s);
|
2018-11-01 19:10:01 +00:00
|
|
|
|
|
|
|
#define bch2_bkey_ops_reservation (struct bkey_ops) { \
|
|
|
|
.key_invalid = bch2_reservation_invalid, \
|
|
|
|
.val_to_text = bch2_reservation_to_text, \
|
|
|
|
.key_merge = bch2_reservation_merge, \
|
|
|
|
}
|
|
|
|
|
2019-11-16 21:25:58 +00:00
|
|
|
/* Extent checksum entries: */
|
2018-11-01 19:10:01 +00:00
|
|
|
|
2019-11-16 21:25:58 +00:00
|
|
|
bool bch2_can_narrow_extent_crcs(struct bkey_s_c,
|
|
|
|
struct bch_extent_crc_unpacked);
|
|
|
|
bool bch2_bkey_narrow_crcs(struct bkey_i *, struct bch_extent_crc_unpacked);
|
|
|
|
void bch2_extent_crc_append(struct bkey_i *,
|
|
|
|
struct bch_extent_crc_unpacked);
|
2018-11-01 19:10:01 +00:00
|
|
|
|
2019-11-16 21:25:58 +00:00
|
|
|
/* Generic code for keys with pointers: */
|
2018-11-01 19:10:01 +00:00
|
|
|
|
2019-09-07 20:13:20 +00:00
|
|
|
static inline bool bkey_extent_is_direct_data(const struct bkey *k)
|
2018-11-01 19:10:01 +00:00
|
|
|
{
|
|
|
|
switch (k->type) {
|
|
|
|
case KEY_TYPE_btree_ptr:
|
|
|
|
case KEY_TYPE_extent:
|
2019-08-16 13:59:56 +00:00
|
|
|
case KEY_TYPE_reflink_v:
|
2018-11-01 19:10:01 +00:00
|
|
|
return true;
|
2017-03-17 06:18:50 +00:00
|
|
|
default:
|
2018-11-01 19:10:01 +00:00
|
|
|
return false;
|
2017-03-17 06:18:50 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2019-09-07 20:13:20 +00:00
|
|
|
static inline bool bkey_extent_is_data(const struct bkey *k)
|
|
|
|
{
|
|
|
|
return bkey_extent_is_direct_data(k) ||
|
2019-11-09 21:43:16 +00:00
|
|
|
k->type == KEY_TYPE_inline_data ||
|
2019-09-07 20:13:20 +00:00
|
|
|
k->type == KEY_TYPE_reflink_p;
|
|
|
|
}
|
|
|
|
|
2019-08-16 13:59:56 +00:00
|
|
|
/*
|
|
|
|
* Should extent be counted under inode->i_sectors?
|
|
|
|
*/
|
2018-11-01 19:10:01 +00:00
|
|
|
static inline bool bkey_extent_is_allocation(const struct bkey *k)
|
2017-03-17 06:18:50 +00:00
|
|
|
{
|
2018-11-01 19:10:01 +00:00
|
|
|
switch (k->type) {
|
|
|
|
case KEY_TYPE_extent:
|
|
|
|
case KEY_TYPE_reservation:
|
2019-08-16 13:59:56 +00:00
|
|
|
case KEY_TYPE_reflink_p:
|
|
|
|
case KEY_TYPE_reflink_v:
|
2019-11-09 21:43:16 +00:00
|
|
|
case KEY_TYPE_inline_data:
|
2018-11-01 19:10:01 +00:00
|
|
|
return true;
|
2017-03-17 06:18:50 +00:00
|
|
|
default:
|
2018-11-01 19:10:01 +00:00
|
|
|
return false;
|
2017-03-17 06:18:50 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2019-11-16 21:25:58 +00:00
|
|
|
static inline struct bch_devs_list bch2_bkey_devs(struct bkey_s_c k)
|
|
|
|
{
|
|
|
|
struct bch_devs_list ret = (struct bch_devs_list) { 0 };
|
|
|
|
struct bkey_ptrs_c p = bch2_bkey_ptrs_c(k);
|
|
|
|
const struct bch_extent_ptr *ptr;
|
2018-11-01 19:10:01 +00:00
|
|
|
|
2019-11-16 21:25:58 +00:00
|
|
|
bkey_for_each_ptr(p, ptr)
|
|
|
|
ret.devs[ret.nr++] = ptr->dev;
|
2018-11-01 19:10:01 +00:00
|
|
|
|
2019-11-16 21:25:58 +00:00
|
|
|
return ret;
|
|
|
|
}
|
2018-11-01 19:10:01 +00:00
|
|
|
|
2019-11-16 21:25:58 +00:00
|
|
|
static inline struct bch_devs_list bch2_bkey_dirty_devs(struct bkey_s_c k)
|
|
|
|
{
|
|
|
|
struct bch_devs_list ret = (struct bch_devs_list) { 0 };
|
|
|
|
struct bkey_ptrs_c p = bch2_bkey_ptrs_c(k);
|
|
|
|
const struct bch_extent_ptr *ptr;
|
2018-11-01 19:10:01 +00:00
|
|
|
|
2019-11-16 21:25:58 +00:00
|
|
|
bkey_for_each_ptr(p, ptr)
|
|
|
|
if (!ptr->cached)
|
|
|
|
ret.devs[ret.nr++] = ptr->dev;
|
2018-11-01 19:10:01 +00:00
|
|
|
|
2019-11-16 21:25:58 +00:00
|
|
|
return ret;
|
|
|
|
}
|
2018-11-01 19:10:01 +00:00
|
|
|
|
2019-11-16 21:25:58 +00:00
|
|
|
static inline struct bch_devs_list bch2_bkey_cached_devs(struct bkey_s_c k)
|
|
|
|
{
|
|
|
|
struct bch_devs_list ret = (struct bch_devs_list) { 0 };
|
|
|
|
struct bkey_ptrs_c p = bch2_bkey_ptrs_c(k);
|
|
|
|
const struct bch_extent_ptr *ptr;
|
2018-11-01 19:10:01 +00:00
|
|
|
|
2019-11-16 21:25:58 +00:00
|
|
|
bkey_for_each_ptr(p, ptr)
|
|
|
|
if (ptr->cached)
|
|
|
|
ret.devs[ret.nr++] = ptr->dev;
|
2017-03-17 06:18:50 +00:00
|
|
|
|
2019-11-16 21:25:58 +00:00
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
unsigned bch2_bkey_nr_ptrs(struct bkey_s_c);
|
|
|
|
unsigned bch2_bkey_nr_ptrs_allocated(struct bkey_s_c);
|
|
|
|
unsigned bch2_bkey_nr_ptrs_fully_allocated(struct bkey_s_c);
|
|
|
|
unsigned bch2_bkey_sectors_compressed(struct bkey_s_c);
|
|
|
|
bool bch2_check_range_allocated(struct bch_fs *, struct bpos, u64, unsigned);
|
|
|
|
unsigned bch2_bkey_durability(struct bch_fs *, struct bkey_s_c);
|
|
|
|
|
|
|
|
void bch2_bkey_mark_replicas_cached(struct bch_fs *, struct bkey_s,
|
|
|
|
unsigned, unsigned);
|
|
|
|
|
|
|
|
void bch2_bkey_append_ptr(struct bkey_i *, struct bch_extent_ptr);
|
|
|
|
void bch2_extent_ptr_decoded_append(struct bkey_i *,
|
|
|
|
struct extent_ptr_decoded *);
|
2018-11-01 19:10:01 +00:00
|
|
|
union bch_extent_entry *bch2_bkey_drop_ptr(struct bkey_s,
|
|
|
|
struct bch_extent_ptr *);
|
2018-09-30 22:28:23 +00:00
|
|
|
|
2018-11-01 19:10:01 +00:00
|
|
|
#define bch2_bkey_drop_ptrs(_k, _ptr, _cond) \
|
2018-09-30 22:28:23 +00:00
|
|
|
do { \
|
2018-11-01 19:10:01 +00:00
|
|
|
struct bkey_ptrs _ptrs = bch2_bkey_ptrs(_k); \
|
|
|
|
\
|
|
|
|
_ptr = &_ptrs.start->ptr; \
|
2018-09-30 22:28:23 +00:00
|
|
|
\
|
2018-11-01 19:10:01 +00:00
|
|
|
while ((_ptr = bkey_ptr_next(_ptrs, _ptr))) { \
|
2018-09-30 22:28:23 +00:00
|
|
|
if (_cond) { \
|
2018-11-01 19:10:01 +00:00
|
|
|
_ptr = (void *) bch2_bkey_drop_ptr(_k, _ptr); \
|
|
|
|
_ptrs = bch2_bkey_ptrs(_k); \
|
2018-09-30 22:28:23 +00:00
|
|
|
continue; \
|
|
|
|
} \
|
|
|
|
\
|
|
|
|
(_ptr)++; \
|
|
|
|
} \
|
|
|
|
} while (0)
|
2017-03-17 06:18:50 +00:00
|
|
|
|
2019-11-16 21:25:58 +00:00
|
|
|
void bch2_bkey_drop_device(struct bkey_s, unsigned);
|
|
|
|
const struct bch_extent_ptr *bch2_bkey_has_device(struct bkey_s_c, unsigned);
|
|
|
|
bool bch2_bkey_has_target(struct bch_fs *, struct bkey_s_c, unsigned);
|
|
|
|
|
|
|
|
bool bch2_bkey_matches_ptr(struct bch_fs *, struct bkey_s_c,
|
|
|
|
struct bch_extent_ptr, u64);
|
|
|
|
|
|
|
|
bool bch2_extent_normalize(struct bch_fs *, struct bkey_s);
|
|
|
|
void bch2_bkey_ptrs_to_text(struct printbuf *, struct bch_fs *,
|
|
|
|
struct bkey_s_c);
|
|
|
|
const char *bch2_bkey_ptrs_invalid(const struct bch_fs *, struct bkey_s_c);
|
|
|
|
|
|
|
|
void bch2_ptr_swab(const struct bkey_format *, struct bkey_packed *);
|
|
|
|
|
|
|
|
/* Generic extent code: */
|
|
|
|
|
2019-11-10 00:02:48 +00:00
|
|
|
int bch2_cut_front_s(struct bpos, struct bkey_s);
|
|
|
|
int bch2_cut_back_s(struct bpos, struct bkey_s);
|
2018-11-27 23:30:56 +00:00
|
|
|
|
2019-07-18 21:21:21 +00:00
|
|
|
static inline void bch2_cut_front(struct bpos where, struct bkey_i *k)
|
2018-11-27 23:30:56 +00:00
|
|
|
{
|
2019-11-10 00:02:48 +00:00
|
|
|
bch2_cut_front_s(where, bkey_i_to_s(k));
|
2018-11-27 23:30:56 +00:00
|
|
|
}
|
|
|
|
|
2019-11-10 00:02:48 +00:00
|
|
|
static inline void bch2_cut_back(struct bpos where, struct bkey_i *k)
|
|
|
|
{
|
|
|
|
bch2_cut_back_s(where, bkey_i_to_s(k));
|
|
|
|
}
|
2019-08-22 20:07:37 +00:00
|
|
|
|
|
|
|
/**
|
|
|
|
* bch_key_resize - adjust size of @k
|
|
|
|
*
|
|
|
|
* bkey_start_offset(k) will be preserved, modifies where the extent ends
|
|
|
|
*/
|
|
|
|
static inline void bch2_key_resize(struct bkey *k, unsigned new_size)
|
|
|
|
{
|
|
|
|
k->p.offset -= k->size;
|
|
|
|
k->p.offset += new_size;
|
|
|
|
k->size = new_size;
|
|
|
|
}
|
2017-03-17 06:18:50 +00:00
|
|
|
|
2018-11-27 23:30:56 +00:00
|
|
|
/*
|
|
|
|
* In extent_sort_fix_overlapping(), insert_fixup_extent(),
|
|
|
|
* extent_merge_inline() - we're modifying keys in place that are packed. To do
|
|
|
|
* that we have to unpack the key, modify the unpacked key - then this
|
|
|
|
* copies/repacks the unpacked to the original as necessary.
|
|
|
|
*/
|
|
|
|
static inline void extent_save(struct btree *b, struct bkey_packed *dst,
|
|
|
|
struct bkey *src)
|
|
|
|
{
|
|
|
|
struct bkey_format *f = &b->format;
|
|
|
|
struct bkey_i *dst_unpacked;
|
|
|
|
|
|
|
|
if ((dst_unpacked = packed_to_bkey(dst)))
|
|
|
|
dst_unpacked->k = *src;
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else
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BUG_ON(!bch2_bkey_pack_key(dst, src, f));
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}
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2017-03-17 06:18:50 +00:00
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#endif /* _BCACHEFS_EXTENTS_H */
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