bcache: Refresh usage docs
authorGabriel de Perthuis <g2p.code@gmail.com>
Thu, 27 Jun 2013 00:12:07 +0000 (02:12 +0200)
committerKent Overstreet <koverstreet@google.com>
Thu, 27 Jun 2013 04:58:06 +0000 (21:58 -0700)
Mention udev autoregistration, symlinks.  Write down some sysfs paths.

Signed-off-by: Gabriel de Perthuis <g2p.code@gmail.com>
Signed-off-by: Kent Overstreet <koverstreet@google.com>
Documentation/bcache.txt

Simple merge