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Add a redirect_intent write mode for non-capacitor SSDs

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This commit is contained in:
Vitaliy Filippov
2025-12-02 01:52:12 +03:00
parent f2cbe793e2
commit b17691ba02
4 changed files with 53 additions and 6 deletions
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src/blockstore/blockstore_heap.cpp
+28
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@@ -1267,6 +1267,34 @@ int blockstore_heap_t::add_big_write(object_id oid, heap_entry_t *old_head, bool
});
}
int blockstore_heap_t::add_redirect_intent(object_id oid, heap_entry_t **obj_ptr, uint64_t version,
uint32_t offset, uint32_t len, uint64_t location, uint8_t *bitmap, uint8_t *data, uint32_t *modified_block)
{
uint32_t wr_size = get_big_intent_entry_size();
// Big-redirect intents, just like regular big writes, are written after writing data so they don't require explicit_complete
return add_entry(wr_size, modified_block, false, false, [&](heap_entry_t *wr)
{
wr->entry_type = BS_HEAP_BIG_INTENT|BS_HEAP_STABLE;
wr->inode = oid.inode;
wr->stripe = oid.stripe;
wr->version = version;
wr->set_big_location(this, location);
auto & bi = wr->big_intent();
bi.offset = offset;
bi.len = len;
if (bitmap)
memcpy(wr->get_ext_bitmap(this), bitmap, dsk->clean_entry_bitmap_size);
else
memset(wr->get_ext_bitmap(this), 0, dsk->clean_entry_bitmap_size);
memset(wr->get_int_bitmap(this), 0, dsk->clean_entry_bitmap_size);
bitmap_set(wr->get_int_bitmap(this), offset, len, dsk->bitmap_granularity);
if (dsk->data_csum_type)
memset(wr->get_checksums(this), 0, get_csum_size(wr));
calc_checksums(wr, (uint8_t*)data, true, offset, len);
*obj_ptr = wr;
});
}
int blockstore_heap_t::add_big_intent(object_id oid, heap_entry_t **obj_ptr, uint64_t version,
uint32_t offset, uint32_t len, uint8_t *bitmap, uint8_t *data, uint8_t *checksums, uint32_t *modified_block)
{