Re: [PATCH] cachefiles: Allow the cache to be non-root

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On 2023/5/20 10:21, David Howells wrote:
Set mode 0600 on files in the cache so that cachefilesd can run as an
unprivileged user rather than leaving the files all with 0.  Directories
are already set to 0700.

Userspace then needs to set the uid and gid before issuing the "bind"
command and the cache must've been chown'd to those IDs.

Signed-off-by: David Howells <dhowells@xxxxxxxxxx>
cc: David Howells <dhowells@xxxxxxxxxx>
cc: Jeff Layton <jlayton@xxxxxxxxxx>
cc: linux-cachefs@xxxxxxxxxx
cc: linux-erofs@xxxxxxxxxxxxxxxx
cc: linux-fsdevel@xxxxxxxxxxxxxxx

It seems useful on our side as well and safe:

Reviewed-by: Gao Xiang <hsiangkao@xxxxxxxxxxxxxxxxx>

Gao Xiang

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