Fixes: internal representation of cgroups hierarchical structure #2585
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strstartswith() function is incorrect choice for finding parent directory so i change it to issubpath() function Signed-off-by: Dmitrii Chervov <[email protected]>
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What do i want:
I want to fix bug in function "find_dir()". Then CRIU add cgroups it search parent directory for cgroup to add it in the correct place. But function that check it - "strstartswith()" is incorrent in this context. For example:
New cgroup: /dsch_tasks
Existent cgroup: /dsch
The "strstartswith" will return TRUE (which is ok) but in our context /dsch is not parent directory for /dsch_tasks.
Thats why i cannot restore my application. So i want to fix this bug:
"(00.002162) Error (criu/cgroup.c:1766): cg: failed to open cg dir fd (freezer//dsch/tasks) for chowning: Not a directory"
How i want to do it:
I replace "strstartswith()" on to "issubpath()" function. It is written exactly for this purpose.
Signed-off-by: Dmitrii Chervov [email protected]