Re: [PATCH v2] perf tools: avoid possible race condition in copyfile

From: Arnaldo Carvalho de Melo
Date: Mon Jun 08 2015 - 10:53:17 EST


Em Mon, Jun 08, 2015 at 04:50:16PM +0200, Milos Vyletel escreveu:
> Use unique temporary files when copying to buildid dir to prevent races
> in case multiple instances are trying to copy same file. This is done by
>
> - creating template in form <path>/.<filename>.XXXXXX where the suffix is
> used by mkstemp() to create unique file
> - change file mode
> - copy content
> - if successful link temp file to target file
> - unlink temp file

Thanks, applied, will be in my next pull request to Ingo,

- Arnaldo
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