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| author | Kent Overstreet <kent.overstreet@gmail.com> | 2018-11-01 15:13:19 -0400 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2023-10-22 17:08:11 -0400 |
| commit | cd575ddf57af004913ff5a994aa5f3203216fa68 (patch) | |
| tree | 15fafb5d59b359aef897a2296f1ce7f8bc33f55a /fs/bcachefs/extents.h | |
| parent | 91f8b5677b5d831cff34b25ef03322ae49e03256 (diff) | |
| download | lwn-cd575ddf57af004913ff5a994aa5f3203216fa68.tar.gz lwn-cd575ddf57af004913ff5a994aa5f3203216fa68.zip | |
bcachefs: Erasure coding
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Diffstat (limited to 'fs/bcachefs/extents.h')
| -rw-r--r-- | fs/bcachefs/extents.h | 21 |
1 files changed, 7 insertions, 14 deletions
diff --git a/fs/bcachefs/extents.h b/fs/bcachefs/extents.h index d121ce5b3225..15865b27847d 100644 --- a/fs/bcachefs/extents.h +++ b/fs/bcachefs/extents.h @@ -96,8 +96,6 @@ unsigned bch2_extent_nr_ptrs(struct bkey_s_c_extent); unsigned bch2_extent_nr_dirty_ptrs(struct bkey_s_c); unsigned bch2_extent_is_compressed(struct bkey_s_c); -unsigned bch2_extent_ptr_durability(struct bch_fs *, - const struct bch_extent_ptr *); unsigned bch2_extent_durability(struct bch_fs *, struct bkey_s_c_extent); bool bch2_extent_matches_ptr(struct bch_fs *, struct bkey_s_c_extent, @@ -362,20 +360,13 @@ bch2_extent_crc_unpack(const struct bkey *k, const union bch_extent_crc *crc) /* Iterate over pointers, with crcs: */ -static inline struct extent_ptr_decoded -__extent_ptr_decoded_init(const struct bkey *k) -{ - return (struct extent_ptr_decoded) { - .crc = bch2_extent_crc_unpack(k, NULL), - }; -} - -#define EXTENT_ITERATE_EC (1 << 0) - #define __extent_ptr_next_decode(_e, _ptr, _entry) \ ({ \ __label__ out; \ \ + (_ptr).idx = 0; \ + (_ptr).ec_nr = 0; \ + \ extent_for_each_entry_from(_e, _entry, _entry) \ switch (extent_entry_type(_entry)) { \ case BCH_EXTENT_ENTRY_ptr: \ @@ -387,14 +378,16 @@ __extent_ptr_decoded_init(const struct bkey *k) (_ptr).crc = bch2_extent_crc_unpack((_e).k, \ entry_to_crc(_entry)); \ break; \ + case BCH_EXTENT_ENTRY_stripe_ptr: \ + (_ptr).ec[(_ptr).ec_nr++] = _entry->stripe_ptr; \ + break; \ } \ - \ out: \ _entry < extent_entry_last(_e); \ }) #define extent_for_each_ptr_decode(_e, _ptr, _entry) \ - for ((_ptr) = __extent_ptr_decoded_init((_e).k), \ + for ((_ptr).crc = bch2_extent_crc_unpack((_e).k, NULL), \ (_entry) = (_e).v->start; \ __extent_ptr_next_decode(_e, _ptr, _entry); \ (_entry) = extent_entry_next(_entry)) |