Pravin, I think Pravin wants to know the Page Frame Number in memory management.(virtual<->physical conversion) But the function drop_pagecache_sb seems to be about the disk cache(file magement or block layer). Chan ________________________________ From : "Pranay Srivastava" <pranjas@gmail.com> Sent : 2014-03-20 22:05:30 ( +09:00 ) To : pravin jadav <pravin.jadav17@gmail.com> Cc : Kernelnewbies@kernelnewbies.org <Kernelnewbies@kernelnewbies.org> Subject : Re: how to get PFN of page cache? On Mar 20, 2014 5:22 PM, "pravin jadav" <pravin.jadav17@gmail.com<mailto:pravin.jadav17@gmail.com>> wrote:
i want to develop linux kernel module that will get PFN of pagecache pages. please help me how to develop this kind of kernel module.
See drop_pagecache_sb. What exactly you need?? I don't think you'll need to modify or access the memory defined by that page. So i guess you could do a lockless version when you iterate over pages.
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pravin jadav M.Tech (IT pursuing )
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