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Remove zerofill in blockstore (an old and unused artifact)

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This commit is contained in:
Vitaliy Filippov
2025-12-02 01:52:12 +03:00
parent 959f792f82
commit 0053546f8b
3 changed files with 5 additions and 26 deletions
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src/blockstore/blockstore_write.cpp
+2 -18
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@@ -174,25 +174,9 @@ enospc:
heap->use_data(op->oid.inode, PRIV(op)->location);
io_uring_sqe *sqe = get_sqe();
ring_data_t *data = ((ring_data_t*)sqe->user_data);
uint64_t stripe_offset = (op->offset % dsk.bitmap_granularity);
uint64_t stripe_end = (op->offset + op->len) % dsk.bitmap_granularity;
// Zero fill up to dsk.bitmap_granularity
int vcnt = 0;
if (stripe_offset)
{
PRIV(op)->iov_zerofill[vcnt++] = (struct iovec){ zero_object, (size_t)stripe_offset };
}
PRIV(op)->iov_zerofill[vcnt++] = (struct iovec){ op->buf, op->len };
if (stripe_end)
{
stripe_end = dsk.bitmap_granularity - stripe_end;
PRIV(op)->iov_zerofill[vcnt++] = (struct iovec){ zero_object, (size_t)stripe_end };
}
data->iov.iov_len = op->len + stripe_offset + stripe_end; // to check it in the callback
data->iov = (struct iovec){ op->buf, op->len };
data->callback = [this, op](ring_data_t *data) { handle_write_event(data, op); };
io_uring_prep_writev(
sqe, dsk.data_fd, PRIV(op)->iov_zerofill, vcnt, dsk.data_offset + loc + op->offset - stripe_offset
);
io_uring_prep_writev(sqe, dsk.data_fd, &data->iov, 1, dsk.data_offset + loc + op->offset);
PRIV(op)->pending_ops++;
PRIV(op)->op_state = 1;
write_iodepth++;