[Bug 107301] system hang during ext4 xattr operation

bugzilla-daemon
2015-11-11T11:37:37Z

--- Comment #16 from Andreas Dilger <adilger.kernelbugzilla@dilger.ca> ---
I think that regardless of how efficient mbcache can be made, it is not as
efficient (both CPU and RAM) as not using it at all in cases where it is not
providing any benefit. I'm not against improving the efficiency, but I think
it still makes sense to have an option to disable it completely. Since mbcache
is already a per-sb cache, having a per-sb mount option makes sense and doesn't
interfere with other improvements to mbcache.