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Fix chained (snapshot) reads often not working at all with chain size > 2

qemu-send-loop
Vitaliy Filippov 2023-06-28 02:22:58 +03:00
parent 10e2e6a7c8
commit 63c2b9832c
1 changed files with 6 additions and 3 deletions
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9
src/osd_primary.cpp
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@ -129,16 +129,19 @@ bool osd_t::prepare_primary_rw(osd_op_t *cur_op)
data_buf = (uint8_t*)data_buf + chain_size * (pool_cfg.scheme == POOL_SCHEME_REPLICATED ? 0 : pg_it->second.pg_size);
// Copy chain
int chain_num = 0;
op_data->read_chain[chain_num++] = cur_op->req.rw.inode;
op_data->read_chain[chain_num] = cur_op->req.rw.inode;
op_data->chain_states[chain_num] = NULL;
chain_num++;
auto inode_it = st_cli.inode_config.find(cur_op->req.rw.inode);
while (inode_it != st_cli.inode_config.end() && inode_it->second.parent_id &&
INODE_POOL(inode_it->second.parent_id) == pg_it->second.pool_id &&
// Check for loops
inode_it->second.parent_id != cur_op->req.rw.inode)
{
op_data->read_chain[chain_num++] = inode_it->second.parent_id;
op_data->chain_states[chain_num++] = NULL;
op_data->read_chain[chain_num] = inode_it->second.parent_id;
op_data->chain_states[chain_num] = NULL;
inode_it = st_cli.inode_config.find(inode_it->second.parent_id);
chain_num++;
}
}
pg_it->second.inflight++;