On Wed, Apr 22, 2020 at 02:21:00PM -0700, ira.weiny@xxxxxxxxx wrote: > From: Ira Weiny <ira.weiny@xxxxxxxxx> > > DAX effective mode (S_DAX) changes requires inode eviction. > > XFS has an advisory flag (XFS_IDONTCACHE) to prevent caching of the > inode if no other additional references are taken. We lift this flag to > the VFS layer and change the behavior slightly by allowing the flag to > remain even if multiple references are taken. > > This will expedite the eviction of inodes to change S_DAX. > > Cc: Al Viro <viro@xxxxxxxxxxxxxxxxxx> > Reviewed-by: Jan Kara <jack@xxxxxxx> > Signed-off-by: Ira Weiny <ira.weiny@xxxxxxxxx> Looks good. Reviewed-by: Dave Chinner <dchinner@xxxxxxxxxx> -- Dave Chinner david@xxxxxxxxxxxxx
