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由 Eric W. Biederman 提交于
When I initially wrote the code for /proc/<pid>/uid_map. I was lazy and avoided duplicate mappings by the simple expedient of ensuring the first number in a new extent was greater than any number in the previous extent. Unfortunately that precludes a number of valid mappings, and someone noticed and complained. So use a simple check to ensure that ranges in the mapping extents don't overlap. Acked-by: NSerge Hallyn <serge.hallyn@canonical.com> Signed-off-by: N"Eric W. Biederman" <ebiederm@xmission.com>
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