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Tools now open the metadata device in O_EXCL mode.

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An attempt to stop people running the tools on active metadata.
This commit is contained in:
Joe Thornber
2015-07-07 13:47:00 +01:00
parent 7d8b6adf4e
commit 642ae6e7c2
6 changed files with 39 additions and 26 deletions
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4
persistent-data/file_utils.cc
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@ -48,10 +48,10 @@ persistent_data::get_nr_blocks(string const &path)
}
persistent_data::block_manager<>::ptr
persistent_data::open_bm(std::string const &dev_path, block_manager<>::mode m)
persistent_data::open_bm(std::string const &dev_path, block_manager<>::mode m, bool excl)
{
block_address nr_blocks = get_nr_blocks(dev_path);
return block_manager<>::ptr(new block_manager<>(dev_path, nr_blocks, 1, m));
return block_manager<>::ptr(new block_manager<>(dev_path, nr_blocks, 1, m, excl));
}
void