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soft_atimes.c — This code compiles as a shared library and intercepts calls to open() and open64() to add O_NOATIME to the flags. On Linux 2.6.8 or greater, this allows you to stop most of your applications from updating filesystem atimes. This is helpful for certain types of applications which are doing routine scans and shouldn't update atimes, but haven't been written to use this option.

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