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rbd: verify the specified namespace before set

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Signed-off-by: songweibin <song.weibin@zte.com.cn>
This commit is contained in:
songweibin 2018-08-28 16:41:10 +08:00
parent aebd6ed964
commit a2c9a622e6
1 changed files with 15 additions and 0 deletions
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15
src/tools/rbd/Utils.cc
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@ -665,6 +665,21 @@ int init_io_ctx(librados::Rados &rados, const std::string &pool_name,
return r;
}
if (!namespace_name.empty()) {
librbd::RBD rbd;
bool exists = false;
r = rbd.namespace_exists(*io_ctx, namespace_name.c_str(), &exists);
if (r < 0) {
std::cerr << "rbd: error asserting namespace: "
<< cpp_strerror(r) << std::endl;
return r;
}
if (!exists) {
std::cerr << "rbd: namespace '" << namespace_name << "' does not exist."
<< std::endl;
return -ENOENT;
}
}
io_ctx->set_namespace(namespace_name);
return 0;
}