[lxc-devel] [lxc/lxc] 7fb1be: overlayfs: overlayfs.v22 or higher needs workdir o...

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/lxc/lxc
  Commit: 7fb1bef22a6fe37653e5fb99a7ba8646e2b46701
      https://github.com/lxc/lxc/commit/7fb1bef22a6fe37653e5fb99a7ba8646e2b46701
  Author: KATOH Yasufumi <karma at jazz.email.ne.jp>
  Date:   2014-10-30 (Thu, 30 Oct 2014)

  Changed paths:
    M src/lxc/bdev.c

  Log Message:
  -----------
  overlayfs: overlayfs.v22 or higher needs workdir option

This patch creates workdir as "olwork", and retry mount with workdir
option when mount is failed.
It is used to prepare files before atomically swithing with
destination, and needs to be on the same filesystem as upperdir. It's
OK for it to be empty.

Signed-off-by: KATOH Yasufumi <karma at jazz.email.ne.jp>
Signed-off-by: Serge Hallyn <serge.hallyn at ubuntu.com>