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Implement large csum_block_size support (more than 4k) + refactor blockstore_flush

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This commit is contained in:
Vitaliy Filippov
2023-07-29 12:17:18 +03:00
parent 0b0405d115
commit 7d532880c3
17 changed files with 1548 additions and 602 deletions
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src/allocator.cpp
+73 -24
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@@ -143,34 +143,83 @@ uint64_t allocator::get_free_count()
return free;
}
// FIXME: Move to utils?
void bitmap_set(void *bitmap, uint64_t start, uint64_t len, uint64_t bitmap_granularity)
{
if (start == 0)
if (start == 0 && len == 32*bitmap_granularity)
*((uint32_t*)bitmap) = UINT32_MAX;
else if (start == 0 && len == 64*bitmap_granularity)
*((uint64_t*)bitmap) = UINT64_MAX;
else
{
if (len == 32*bitmap_granularity)
unsigned bit_start = start / bitmap_granularity;
unsigned bit_end = ((start + len) + bitmap_granularity - 1) / bitmap_granularity;
while (bit_start < bit_end)
{
*((uint32_t*)bitmap) = UINT32_MAX;
return;
}
else if (len == 64*bitmap_granularity)
{
*((uint64_t*)bitmap) = UINT64_MAX;
return;
}
}
unsigned bit_start = start / bitmap_granularity;
unsigned bit_end = ((start + len) + bitmap_granularity - 1) / bitmap_granularity;
while (bit_start < bit_end)
{
if (!(bit_start & 7) && bit_end >= bit_start+8)
{
((uint8_t*)bitmap)[bit_start / 8] = UINT8_MAX;
bit_start += 8;
}
else
{
((uint8_t*)bitmap)[bit_start / 8] |= 1 << (bit_start % 8);
bit_start++;
if (!(bit_start & 7) && bit_end >= bit_start+8)
{
((uint8_t*)bitmap)[bit_start / 8] = UINT8_MAX;
bit_start += 8;
}
else
{
((uint8_t*)bitmap)[bit_start / 8] |= 1 << (bit_start % 8);
bit_start++;
}
}
}
}
void bitmap_clear(void *bitmap, uint64_t start, uint64_t len, uint64_t bitmap_granularity)
{
if (start == 0 && len == 32*bitmap_granularity)
*((uint32_t*)bitmap) = 0;
else if (start == 0 && len == 64*bitmap_granularity)
*((uint64_t*)bitmap) = 0;
else
{
unsigned bit_start = start / bitmap_granularity;
unsigned bit_end = ((start + len) + bitmap_granularity - 1) / bitmap_granularity;
while (bit_start < bit_end)
{
if (!(bit_start & 7) && bit_end >= bit_start+8)
{
((uint8_t*)bitmap)[bit_start / 8] = 0;
bit_start += 8;
}
else
{
((uint8_t*)bitmap)[bit_start / 8] &= (0xFF ^ (1 << (bit_start % 8)));
bit_start++;
}
}
}
}
bool bitmap_check(void *bitmap, uint64_t start, uint64_t len, uint64_t bitmap_granularity)
{
bool r = false;
if (start == 0 && len == 32*bitmap_granularity)
r = !!*((uint32_t*)bitmap);
else if (start == 0 && len == 64*bitmap_granularity)
r = !!*((uint64_t*)bitmap);
else
{
unsigned bit_start = start / bitmap_granularity;
unsigned bit_end = ((start + len) + bitmap_granularity - 1) / bitmap_granularity;
while (bit_start < bit_end)
{
if (!(bit_start & 7) && bit_end >= bit_start+8)
{
r = r || !!((uint8_t*)bitmap)[bit_start / 8];
bit_start += 8;
}
else
{
r = r || (((uint8_t*)bitmap)[bit_start / 8] & (1 << (bit_start % 8)));
bit_start++;
}
}
}
return r;
}