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Check for loops in parent inode chains

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This commit is contained in:
Vitaliy Filippov
2021-06-20 00:23:03 +03:00
parent 6ca8afffe5
commit aad7792d3f
2 changed files with 12 additions and 4 deletions
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src/osd_primary.cpp
+7 -2
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@@ -67,7 +67,9 @@ bool osd_t::prepare_primary_rw(osd_op_t *cur_op)
}
// Find parents from the same pool. Optimized reads only work within pools
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)
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)
{
chain_size++;
inode_it = st_cli.inode_config.find(inode_it->second.parent_id);
@@ -123,7 +125,10 @@ bool osd_t::prepare_primary_rw(osd_op_t *cur_op)
int chain_num = 0;
op_data->read_chain[chain_num++] = cur_op->req.rw.inode;
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)
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;
inode_it = st_cli.inode_config.find(inode_it->second.parent_id);