Kir Kolyshkin c5f1cdf92c projectquota: treat ENOSYS as quota unsupported ...

If mknod() returns ENOSYS, it most probably means quota is not supported
here, so return the appropriate error.

This is a conservative* fix to regression in vfs graph driver introduced
by commit 7a1618ced359a3ac92 ("add quota support to VFS graphdriver").
On some filesystems, vfs fails to init with the following error:

> Error starting daemon: error initializing graphdriver: Failed to mknod
> /go/src/github.com/docker/docker/bundles/test-integration/d6bcf6de610e9/root/vfs/backingFsBlockDev:
> function not implemented

Reported-by: Brian Goff <cpuguy83@gmail.com>
Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
Upstream-commit: 2dd39b7841bdb9968884bbedc5db97ff77d4fe3e
Component: engine

2017-12-18 10:32:36 -08:00

..

engine

projectquota: treat ENOSYS as quota unsupported

2017-12-18 10:32:36 -08:00