I/O statistics per process

[Frank Ch. Eigler]

Fengguang Wu <fengguang.wu@gmail.com> wrote on LKML: 

> [...]
> Andrew has added kernel support to it in -mm tree.
> Check this commit log:
> http://www.mail-archive.com/mm-commits@vger.kernel.org/msg02975.html
> 
> io-accounting-core-statistics.patch
> io-accounting-write-accounting.patch
> io-accounting-write-cancel-accounting.patch
> [...]

When/if this set of patches makes it upstream, we might consider
adding a tapset to use its hooks or data structures to gather
script-accessible information.

- FChE