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Re: Correction to comment regarding atomicity of an operation - Mailing list pgsql-hackers

From Amit Kapila
Subject Re: Correction to comment regarding atomicity of an operation
Date
Msg-id 002901cd9095$7cc42a90$764c7fb0$@kapila@huawei.com
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In response to Correction to comment regarding atomicity of an operation  (Gurjeet Singh <singh.gurjeet@gmail.com>)
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On Wednesday, September 12, 2012 5:33 AM Gurjeet Singh wrote:

 

 

> This comment in UpdateFullPageWrites() seems to be inaccurate:

>     * It's safe to check the shared full_page_writes without the lock,
 >    * because we assume that there is no concurrently running process which
  >   * can update it.

> That assumption does not hold on any sane SMP system.

Do you able to see any case where it can be updated when being accessed here.

 

With Regards,

Amit Kapila.

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