On Fri, Nov 20, 2015 at 06:08:15PM -0700, Andreas Dilger wrote: > > I'm definitely not in favor of deleting mbcache entirely, just having the > mount option to disable it in cases where it is known not to be useful, > such as Ceph or Lustre backing stores that never have shared xattrs. > > In some cases mbcache can be useful, since it allows sharing xattrs > between inodes. > > I thought you would update our patch to add the mount option to disable > mbcache? And better yet would be if there was a blacklist of Lustre and Ceph xattr type/keys that will never have shared attrs, so that mbcache is not used for those xattrs automatically, *without* using a mount option. Can someone at least start help creating that list? But yeah, a complete deletion of mbcache is a non-starter. Regards, - Ted -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html