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Merge pull request #64102 from atombender/ext-reserved-blocks
Automatic merge from submit-queue (batch tested with PRs 64102, 63303, 64150, 63841). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

When creating ext3/ext4 volume, disable reserved blocks

**What this PR does / why we need it**:
When creating ext3/ext4 volume, `mkfs` defaults to reserving 5% of the volume for the super-user (root). This patch changes the `mkfs` to pass `-m0` to disable this setting.

Rationale: Reserving a percentage of the volume is generally a neither useful nor desirable feature for volumes that aren't used as root file systems for Linux distributions, since the reserved portion becomes unavailable for non-root users. For containers, the general case is to use the entire volume for data, without running as root. The case where one might want reserved blocks enabled is much rarer.

**Special notes for your reviewer**:
I also added some comments to describe the flags passed to `mkfs`.

**Release note**:

```release-note
Changes ext3/ext4 volume creation to not reserve any portion of the volume for the root user.
```
2018-05-23 04:53:13 -07:00
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api Merge pull request #63830 from mbohlool/crd_versioning_nop 2018-05-22 23:11:55 -07:00
build add wait 2018-05-22 08:47:42 -04:00
cluster Merge pull request #64029 from loburm/truncate-flag 2018-05-19 05:17:00 -07:00
cmd Merge pull request #63283 from stewart-yu/stewart-cleancontroller 2018-05-22 21:36:05 -07:00
docs Merge pull request #64126 from mtaufen/remove-old-todos 2018-05-22 22:14:13 -07:00
Godeps vSphere Cloud Provider: update vmware/gomvomi godeps 2018-05-15 10:06:56 -07:00
hack Merge pull request #64034 from deads2k/cli-62-wait 2018-05-22 19:20:12 -07:00
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pkg Merge pull request #64102 from atombender/ext-reserved-blocks 2018-05-23 04:53:13 -07:00
plugin switch rbac to external 2018-05-22 08:17:05 -04:00
staging Merge pull request #63830 from mbohlool/crd_versioning_nop 2018-05-22 23:11:55 -07:00
test Merge pull request #64173 from mtaufen/node-e2e-dynamic-config-helper-fix 2018-05-22 23:52:09 -07:00
third_party Fix error message in Equalities.DeepEqual 2018-05-20 02:22:09 +03:00
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