• Matt Mackall's avatar
    maps4: add /proc/pid/pagemap interface · 85863e47
    Matt Mackall authored
    This interface provides a mapping for each page in an address space to its
    physical page frame number, allowing precise determination of what pages are
    mapped and what pages are shared between processes.
    
    New in this version:
    
    - headers gone again (as recommended by Dave Hansen and Alan Cox)
    - 64-bit entries (as per discussion with Andi Kleen)
    - swap pte information exported (from Dave Hansen)
    - page walker callback for holes (from Dave Hansen)
    - direct put_user I/O (as suggested by Rusty Russell)
    
    This patch folds in cleanups and swap PTE support from Dave Hansen
    <haveblue@us.ibm.com>.
    Signed-off-by: default avatarMatt Mackall <mpm@selenic.com>
    Cc: Dave Hansen <haveblue@us.ibm.com>
    Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
    Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
    85863e47
base.c 66.5 KB