Messages in this thread | | | Date | Fri, 13 Mar 2020 01:00:57 +0000 | From | Chris Down <> | Subject | Re: [PATCH v3 0/4] Support user xattrs in cgroupfs |
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Daniel Xu writes: >User extended attributes are useful as metadata storage for kernfs >consumers like cgroups. Especially in the case of cgroups, it is useful >to have a central metadata store that multiple processes/services can >use to coordinate actions. > >A concrete example is for userspace out of memory killers. We want to >let delegated cgroup subtree owners (running as non-root) to be able to >say "please avoid killing this cgroup". This is especially important for >desktop linux as delegated subtrees owners are less likely to run as >root. > >The first two commits set up some stuff for the third commit which >intro introduce a new flag, KERNFS_ROOT_SUPPORT_USER_XATTR, >that lets kernfs consumers enable user xattr support. The final commit >turns on user xattr support for cgroupfs.
The whole series looks good to me, thanks.
For the whole series:
Acked-by: Chris Down <chris@chrisdown.name>
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