btrfs: allow idmapped SUBVOL_SETFLAGS ioctl

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Setting flags on subvolumes or snapshots are core features of btrfs. The
SUBVOL_SETFLAGS ioctl is especially important as it allows to make
subvolumes and snapshots read-only or read-write. Allow setting flags on
btrfs subvolumes and snapshots on idmapped mounts. This is a fairly
straightforward operation since all the permission checking helpers are
already capable of handling idmapped mounts. So we just need to pass
down the mount's userns.

Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

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Christian Brauner 2021-07-27 12:48:56 +02:00 • committed by David Sterba

parent e4fed17a32

commit 39e1674ff0

1 changed files with 1 additions and 1 deletions

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fs/btrfs/ioctl.c

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