Re: [PATCH v1] madvise.2: Document MADV_POPULATE_READ and MADV_POPULATE_WRITE

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



> >> +.BR MADV_POPULATE_WRITE " (since Linux 5.14)
> >> +Populate (prefault) page tables writable for the whole range without actually
> >> +writing. Depending on the underlying mapping, preallocate memory or read the
> >
> > Is this read or write?
> > just reading and trying to understand :)
>
> It's reading. Assume you have a file with existing content mapped into a
> process. Once you touch a page (read/write/execute) that maps to blocks
> with existing content, you'll have to load these blocks from disk first.

Got it. Thanks for explaining!

Best regards,
Pankaj




[Index of Archives]     [Linux ARM Kernel]     [Linux ARM]     [Linux Omap]     [Fedora ARM]     [IETF Annouce]     [Bugtraq]     [Linux OMAP]     [Linux MIPS]     [eCos]     [Asterisk Internet PBX]     [Linux API]

  Powered by Linux