Ivan Babrou 0ce7c12e88 kernfs: attach uuid for every kernfs and report it in fsid ...

The following two commits added the same thing for tmpfs:

* commit 2b4db79618 ("tmpfs: generate random sb->s_uuid")
* commit 59cda49ecf ("shmem: allow reporting fanotify events with file handles on tmpfs")

Having fsid allows using fanotify, which is especially handy for cgroups,
where one might be interested in knowing when they are created or removed.

Signed-off-by: Ivan Babrou <ivan@cloudflare.com>
Acked-by: Jan Kara <jack@suse.cz>
Acked-by: Christian Brauner <brauner@kernel.org>
Link: https://lore.kernel.org/r/20230731184731.64568-1-ivan@cloudflare.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2023-08-05 08:32:39 +02:00

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