bcachefs: BCH_EXTENT_ENTRY_TYPES()
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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71c9e0ba42
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abce30b79b
2 changed files with 20 additions and 19 deletions
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@ -461,14 +461,18 @@ enum bch_compression_type {
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BCH_COMPRESSION_NR = 5,
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};
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enum bch_extent_entry_type {
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BCH_EXTENT_ENTRY_ptr = 0,
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BCH_EXTENT_ENTRY_crc32 = 1,
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BCH_EXTENT_ENTRY_crc64 = 2,
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BCH_EXTENT_ENTRY_crc128 = 3,
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};
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#define BCH_EXTENT_ENTRY_TYPES() \
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x(ptr, 0) \
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x(crc32, 1) \
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x(crc64, 2) \
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x(crc128, 3)
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#define BCH_EXTENT_ENTRY_MAX 4
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#define BCH_EXTENT_ENTRY_MAX 4
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enum bch_extent_entry_type {
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#define x(f, n) BCH_EXTENT_ENTRY_##f = n,
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BCH_EXTENT_ENTRY_TYPES()
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#undef x
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};
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/* Compressed/uncompressed size are stored biased by 1: */
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struct bch_extent_crc32 {
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@ -594,10 +598,10 @@ union bch_extent_entry {
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#else
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#error edit for your odd byteorder.
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#endif
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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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struct bch_extent_ptr ptr;
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#define x(f, n) struct bch_extent_##f f;
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BCH_EXTENT_ENTRY_TYPES()
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#undef x
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};
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enum {
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@ -162,14 +162,11 @@ extent_entry_type(const union bch_extent_entry *e)
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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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case BCH_EXTENT_ENTRY_crc32:
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return sizeof(struct bch_extent_crc32);
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case BCH_EXTENT_ENTRY_crc64:
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return sizeof(struct bch_extent_crc64);
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case BCH_EXTENT_ENTRY_crc128:
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return sizeof(struct bch_extent_crc128);
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case BCH_EXTENT_ENTRY_ptr:
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return sizeof(struct bch_extent_ptr);
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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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default:
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BUG();
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}
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