libct/cg: skip hidden ones when parsing cgroup mounts #3890
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According to [1], "If a new mount is stacked on top of a previous existing mount, at pathname P, then the parent of the new mount is the previous mount at that location" Use this strategy to skip hidden cgroup mount. 1. https://man7.org/linux/man-pages/man5/proc.5.html Signed-off-by: Liu Hua <[email protected]>
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@liusdu can you create an integration test case, so that we can see the problem the code is trying to solve? |
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@liusdu I mark this pr as draft. Please rebase, fix the errors, and add some test cases. |
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@liusdu do you plan to keep working on this? |
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According to [1], "If a new mount is stacked on top of a previous existing mount, at pathname P, then the parent of the new mount is the previous mount at that location"
Use this strategy to skip hidden cgroup mount.