On Wed, Sep 14, 2016 at 09:55:22AM +0800, Qu Wenruo wrote: > Introduce _post_mount_hook(), which will be executed after mounting > scratch/test. > > It's quite useful for fs(OK, only btrfs yet, again) which needs to > use ioctl other than mount option to enable some of its feature.
Just implement a _btrfs_mount() function (similar to _overlay_mount()) to do btrfs specific things at mount time. > Signed-off-by: Qu Wenruo <[email protected]> > --- > common/rc | 23 +++++++++++++++++++++++ > 1 file changed, 23 insertions(+) > > diff --git a/common/rc b/common/rc > index 23c007a..631397f 100644 > --- a/common/rc > +++ b/common/rc > @@ -321,6 +321,27 @@ _overlay_scratch_unmount() > $UMOUNT_PROG $SCRATCH_MNT > } > > +_run_btrfs_post_mount_hook() > +{ > + mnt_point=$1 > + for n in $ALWAYS_ENABLE_BTRFS_FEATURE; do What's this magic, undefined, undocumented variable? Cheers, Dave. -- Dave Chinner [email protected] -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
