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Add "external" bitmap support to osd_rmw

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This commit is contained in:
Vitaliy Filippov
2021-04-10 17:44:12 +03:00
parent d99407dcec
commit 95c29b9dc3
9 changed files with 159 additions and 88 deletions
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src/blockstore_flush.cpp
+2 -34
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@@ -432,14 +432,14 @@ resume_1:
if (clean_init_bitmap)
{
memset(new_clean_bitmap, 0, bs->clean_entry_bitmap_size);
bitmap_set(new_clean_bitmap, clean_bitmap_offset, clean_bitmap_len);
bitmap_set(new_clean_bitmap, clean_bitmap_offset, clean_bitmap_len, bs->bitmap_granularity);
}
}
for (it = v.begin(); it != v.end(); it++)
{
if (new_clean_bitmap)
{
bitmap_set(new_clean_bitmap, it->offset, it->len);
bitmap_set(new_clean_bitmap, it->offset, it->len, bs->bitmap_granularity);
}
await_sqe(4);
data->iov = (struct iovec){ it->buf, (size_t)it->len };
@@ -885,35 +885,3 @@ bool journal_flusher_co::fsync_batch(bool fsync_meta, int wait_base)
}
return true;
}
void journal_flusher_co::bitmap_set(void *bitmap, uint64_t start, uint64_t len)
{
if (start == 0)
{
if (len == 32*bs->bitmap_granularity)
{
*((uint32_t*)bitmap) = UINT32_MAX;
return;
}
else if (len == 64*bs->bitmap_granularity)
{
*((uint64_t*)bitmap) = UINT64_MAX;
return;
}
}
unsigned bit_start = start / bs->bitmap_granularity;
unsigned bit_end = ((start + len) + bs->bitmap_granularity - 1) / bs->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++;
}
}
}