Gracefully handle MADV_FREE available at compile time but not run time

Gracefully handle MADV_FREE available at compile time but not run time

This fixes "aw snap" with glibc-2.24 .

BUG=636229
Committed: https://crrev.com/447a7a69008678046379b35bc14faad91ad2812f
Cr-Commit-Position: refs/heads/master@{#441020}

[Paweł Hajdan Jr., 2016-12-29 16:16:57]

The CQ bit was checked by phajdan.jr@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2016-12-29 16:17:09]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-12-29 17:11:41]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2016-12-29 17:11:41]

Dry run: This issue passed the CQ dry run.

[Paweł Hajdan Jr., 2016-12-29 17:56:10]

phajdan.jr@chromium.org changed reviewers:
+ haraken@chromium.org, palmer@chromium.org

[palmer, 2016-12-29 20:18:55]

lgtm

[haraken, 2016-12-30 00:07:11]

LGTM

[Paweł Hajdan Jr., 2016-12-30 07:43:29]

The CQ bit was checked by phajdan.jr@chromium.org

[commit-bot: I haz the power, 2016-12-30 07:43:34]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-12-30 07:47:13]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1483083809262510, "parent_rev":
"5ae0dad724b06949e059a073b5c8817103cce476", "commit_rev":
"ae70e2036fdd47d42285cf842da3ffe956fc5e10"}

[commit-bot: I haz the power, 2016-12-30 07:48:04]

Description was changed from

==========
Gracefully handle MADV_FREE available at compile time but not run time

This fixes "aw snap" with glibc-2.24 .

BUG=636229
==========

to

==========
Gracefully handle MADV_FREE available at compile time but not run time

This fixes "aw snap" with glibc-2.24 .

BUG=636229

Review-Url: https://codereview.chromium.org/2609553002
==========

[commit-bot: I haz the power, 2016-12-30 07:48:05]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2017-01-02 15:54:12]

Description was changed from

==========
Gracefully handle MADV_FREE available at compile time but not run time

This fixes "aw snap" with glibc-2.24 .

BUG=636229

Review-Url: https://codereview.chromium.org/2609553002
==========

to

==========
Gracefully handle MADV_FREE available at compile time but not run time

This fixes "aw snap" with glibc-2.24 .

BUG=636229

Committed: https://crrev.com/447a7a69008678046379b35bc14faad91ad2812f
Cr-Commit-Position: refs/heads/master@{#441020}
==========

[commit-bot: I haz the power, 2017-01-02 15:54:13]

Patchset 1 (id:??) landed as
https://crrev.com/447a7a69008678046379b35bc14faad91ad2812f
Cr-Commit-Position: refs/heads/master@{#441020}