• Konstantin Khlebnikov's avatar
    mm: prepare VM_DONTDUMP for using in drivers · 0103bd16
    Konstantin Khlebnikov authored
    Rename VM_NODUMP into VM_DONTDUMP: this name matches other negative flags:
    VM_DONTEXPAND, VM_DONTCOPY.  Currently this flag used only for
    sys_madvise.  The next patch will use it for replacing the outdated flag
    VM_RESERVED.
    
    Also forbid madvise(MADV_DODUMP) for special kernel mappings VM_SPECIAL
    (VM_IO | VM_DONTEXPAND | VM_RESERVED | VM_PFNMAP)
    Signed-off-by: default avatarKonstantin Khlebnikov <khlebnikov@openvz.org>
    Cc: Alexander Viro <viro@zeniv.linux.org.uk>
    Cc: Carsten Otte <cotte@de.ibm.com>
    Cc: Chris Metcalf <cmetcalf@tilera.com>
    Cc: Cyrill Gorcunov <gorcunov@openvz.org>
    Cc: Eric Paris <eparis@redhat.com>
    Cc: H. Peter Anvin <hpa@zytor.com>
    Cc: Hugh Dickins <hughd@google.com>
    Cc: Ingo Molnar <mingo@redhat.com>
    Cc: James Morris <james.l.morris@oracle.com>
    Cc: Jason Baron <jbaron@redhat.com>
    Cc: Kentaro Takeda <takedakn@nttdata.co.jp>
    Cc: Matt Helsley <matthltc@us.ibm.com>
    Cc: Nick Piggin <npiggin@kernel.dk>
    Cc: Oleg Nesterov <oleg@redhat.com>
    Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
    Cc: Robert Richter <robert.richter@amd.com>
    Cc: Suresh Siddha <suresh.b.siddha@intel.com>
    Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
    Cc: Venkatesh Pallipadi <venki@google.com>
    Acked-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
    Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
    Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
    0103bd16
mm.h 54.8 KB