At any level of the system, from the hardware to high-level applications, performance often depends on keeping frequently-used data in a place where it can be accessed quickly. That is the principle ...
Cc: linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk, david@fromorbit.com, dave@jikos.cz, darrick.wong@oracle.com, andi@firstfloor.org, hch@infradead.org ...