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https://github.com/archlinuxarm/PKGBUILDs.git
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38 lines
1.4 KiB
Diff
38 lines
1.4 KiB
Diff
From d60301edb88a4e182a10cd2becb3795b2dd13fab Mon Sep 17 00:00:00 2001
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From: Tianon Gravi <admwiggin@gmail.com>
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Date: Thu, 8 May 2014 01:03:45 -0600
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Subject: [PATCH] Update restrict.Restrict to both show the error message when
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failing to mount /dev/null over /proc/kcore, and to ignore "not exists"
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errors while doing so (for when CONFIG_PROC_KCORE=n in the kernel)
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Docker-DCO-1.1-Signed-off-by: Andrew Page <admwiggin@gmail.com> (github: tianon)
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---
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pkg/libcontainer/security/restrict/restrict.go | 5 +++--
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1 file changed, 3 insertions(+), 2 deletions(-)
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diff --git a/pkg/libcontainer/security/restrict/restrict.go b/pkg/libcontainer/security/restrict/restrict.go
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index e1296b1..361d076 100644
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--- a/pkg/libcontainer/security/restrict/restrict.go
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+++ b/pkg/libcontainer/security/restrict/restrict.go
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@@ -4,6 +4,7 @@ package restrict
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import (
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"fmt"
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+ "os"
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"syscall"
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"github.com/dotcloud/docker/pkg/system"
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@@ -18,8 +19,8 @@ func Restrict(mounts ...string) error {
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return fmt.Errorf("unable to remount %s readonly: %s", dest, err)
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}
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}
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- if err := system.Mount("/dev/null", "/proc/kcore", "", syscall.MS_BIND, ""); err != nil {
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- return fmt.Errorf("unable to bind-mount /dev/null over /proc/kcore")
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+ if err := system.Mount("/dev/null", "/proc/kcore", "", syscall.MS_BIND, ""); err != nil && !os.IsNotExist(err) {
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+ return fmt.Errorf("unable to bind-mount /dev/null over /proc/kcore: %s", err)
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}
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return nil
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}
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--
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1.9.1
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