Commit 0caa102da82799efaba88e234484786a9591c797 introduced the
SUBVOL_SETFLAGS ioctl, which contains the following check:
if (flags & ~BTRFS_SUBVOL_CREATE_ASYNC)
return -EINVAL;
if (flags & ~BTRFS_SUBVOL_RDONLY)
return -EOPNOTSUPP;
Is it intentional that 0 is the only acceptable flags value? In
addition, there should probably be an inode ownership check before
allowing setting subvolume flags.
Regards,
Dan
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