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Fix freeing r/w buffers on errors in kv_db
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Vitaliy Filippov 2024-03-05 00:51:40 +03:00
parent cb6927cdce
commit 4acb369e74
1 changed files with 10 additions and 4 deletions
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14
src/kv_db.cpp
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@ -701,15 +701,13 @@ void kv_db_t::find_size(uint64_t min, uint64_t max, int phase, std::function<voi
op->inode = inode_id;
op->offset = (phase == 1 ? min : (min+max)/2) * ino_block_size;
op->len = kv_block_size;
if (op->len)
{
op->iov.push_back(malloc_or_die(op->len), op->len);
}
op->iov.push_back(malloc_or_die(op->len), op->len);
op->callback = [=](cluster_op_t *op)
{
if (op->retval != op->len)
{
// error
free(op->iov.buf[0].iov_base);
cb(op->retval >= 0 ? -EIO : op->retval, 0);
return;
}
@ -896,7 +894,9 @@ static void get_block(kv_db_t *db, uint64_t offset, int cur_level, int recheck_p
if (op->retval != op->len)
{
// error
free(op->iov.buf[0].iov_base);
cb(op->retval >= 0 ? -EIO : op->retval, BLK_NOCHANGE);
delete op;
return;
}
invalidate(db, op->offset, op->version);
@ -909,6 +909,8 @@ static void get_block(kv_db_t *db, uint64_t offset, int cur_level, int recheck_p
if (blk->updating > 0 && recheck_policy == KV_RECHECK_WAIT)
{
// Wait until block update stops
free(op->iov.buf[0].iov_base);
delete op;
db->continue_update.emplace(blk->offset, [=, blk_offset = blk->offset]()
{
get_block(db, offset, cur_level, recheck_policy, cb);
@ -1339,6 +1341,8 @@ static void write_new_block(kv_db_t *db, kv_block_t *blk, std::function<void(int
del_block_level(db, blk);
db->block_cache.erase(blk->offset);
cb(op->retval >= 0 ? -EIO : op->retval, NULL);
free(op->iov.buf[0].iov_base);
delete op;
return;
}
invalidate(db, op->offset, op->version);
@ -1353,6 +1357,8 @@ static void write_new_block(kv_db_t *db, kv_block_t *blk, std::function<void(int
// Block is already occupied => place again
place_again(db, blk, cb);
}
free(op->iov.buf[0].iov_base);
delete op;
};
db->cli->execute(op);
}