Messages in this thread | | | Date | Fri, 9 Jun 2006 19:42:36 -0700 | From | Andrew Morton <> | Subject | Re: [PATCH]: Adding a counter in vma to indicate the number of physical pages backing it |
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On Fri, 09 Jun 2006 18:33:55 -0700 Rohit Seth <rohitseth@google.com> wrote:
> Below is a patch that adds number of physical pages that each vma is > using in a process. Exporting this information to user space > using /proc/<pid>/maps interface.
Ouch, that's an awful lot of open-coded incs and decs. Isn't there some more centralised place we can do this?
What locking protects vma.nphys (can we call this nr_present or something?)
Will this patch do the right thing with weird vmas such as the gate vma and mmaps of device memory, etc?
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