Sebastiaan van Stijn efd7b774aa Detect overlay2 support on pre-4.0 kernels ...

The overlay2 storage-driver requires multiple lower dir
support for overlayFs. Support for this feature was added
in kernel 4.x, but some distros (RHEL 7.4, CentOS 7.4) ship with
an older kernel with this feature backported.

This patch adds feature-detection for multiple lower dirs,
and will perform this feature-detection on pre-4.x kernels
with overlayFS support.

With this patch applied, daemons running on a kernel
with multiple lower dir support will now select "overlay2"
as storage-driver, instead of falling back to "overlay".

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Upstream-commit: 955c1f881ac94af19c99f0f7d5635e6a574789f2
Component: engine

2017-11-28 13:55:33 -08:00

components/engine

Detect overlay2 support on pre-4.0 kernels

2017-11-28 13:55:33 -08:00

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