[heap] Concurrently free empty typed slot set chunks.

[heap] Concurrently free empty typed slot set chunks.

BUG=chromium:648568
Committed: https://crrev.com/ff8101d8e8d5e14dfa89de1252c510e6a0775539
Cr-Commit-Position: refs/heads/master@{#39605}

[Hannes Payer (out of office), 2016-09-21 14:22:12]

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

[commit-bot: I haz the power, 2016-09-21 14:22:23]

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

[Hannes Payer (out of office), 2016-09-21 14:42:44]

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

[commit-bot: I haz the power, 2016-09-21 14:42:50]

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

[ulan, 2016-09-21 14:44:09]

ulan@chromium.org changed reviewers:
+ ulan@chromium.org

[ulan, 2016-09-21 14:44:10]

lgtm!

[Hannes Payer (out of office), 2016-09-21 14:48:02]

The CQ bit was unchecked by hpayer@chromium.org

[Hannes Payer (out of office), 2016-09-21 14:48:03]

The CQ bit was checked by hpayer@chromium.org

[commit-bot: I haz the power, 2016-09-21 14:48:14]

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, 2016-09-21 15:01:03]

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

[commit-bot: I haz the power, 2016-09-21 15:01:04]

Try jobs failed on following builders:
  v8_linux64_avx2_rel_ng on master.tryserver.v8 (JOB_FAILED,
http://build.chromium.org/p/tryserver.v8/builders/v8_linux64_avx2_rel_ng/buil...)
  v8_linux64_avx2_rel_ng_triggered on master.tryserver.v8 (JOB_FAILED,
http://build.chromium.org/p/tryserver.v8/builders/v8_linux64_avx2_rel_ng_trig...)

[Hannes Payer (out of office), 2016-09-21 19:14:07]

The CQ bit was checked by hpayer@chromium.org

[Hannes Payer (out of office), 2016-09-21 19:14:07]

The patchset sent to the CQ was uploaded after l-g-t-m from ulan@chromium.org
Link to the patchset: https://codereview.chromium.org/2352423002/#ps40001
(title: "Allocate top level chunk")

[commit-bot: I haz the power, 2016-09-21 19:14:18]

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, 2016-09-21 20:10:40]

Committed patchset #3 (id:40001)

[commit-bot: I haz the power, 2016-09-21 20:11:23]

Description was changed from

==========
[heap] Concurrently free empty typed slot set chunks.

BUG=chromium:648568
==========

to

==========
[heap] Concurrently free empty typed slot set chunks.

BUG=chromium:648568

Committed: https://crrev.com/ff8101d8e8d5e14dfa89de1252c510e6a0775539
Cr-Commit-Position: refs/heads/master@{#39605}
==========

[commit-bot: I haz the power, 2016-09-21 20:11:24]

Patchset 3 (id:??) landed as
https://crrev.com/ff8101d8e8d5e14dfa89de1252c510e6a0775539
Cr-Commit-Position: refs/heads/master@{#39605}

[adamk, 2016-09-21 23:48:28]

A revert of this CL (patchset #3 id:40001) has been created in
https://codereview.chromium.org/2358333002/ by adamk@chromium.org.

The reason for reverting is: TSAN failures on Linux64:

https://build.chromium.org/p/client.v8/builders/V8%20Linux64%20TSAN/builds/11850

Also saw various threading-related flakiness on multiple bots..

[Hannes Payer (out of office), 2016-09-22 12:35:27]

Patchset #4 (id:60001) has been deleted