linux_dsm_epyc7002/drivers/media/v4l2-core
Konstantin Khlebnikov 314e51b985 mm: kill vma flag VM_RESERVED and mm->reserved_vm counter
A long time ago, in v2.4, VM_RESERVED kept swapout process off VMA,
currently it lost original meaning but still has some effects:

 | effect                 | alternative flags
-+------------------------+---------------------------------------------
1| account as reserved_vm | VM_IO
2| skip in core dump      | VM_IO, VM_DONTDUMP
3| do not merge or expand | VM_IO, VM_DONTEXPAND, VM_HUGETLB, VM_PFNMAP
4| do not mlock           | VM_IO, VM_DONTEXPAND, VM_HUGETLB, VM_PFNMAP

This patch removes reserved_vm counter from mm_struct.  Seems like nobody
cares about it, it does not exported into userspace directly, it only
reduces total_vm showed in proc.

Thus VM_RESERVED can be replaced with VM_IO or pair VM_DONTEXPAND | VM_DONTDUMP.

remap_pfn_range() and io_remap_pfn_range() set VM_IO|VM_DONTEXPAND|VM_DONTDUMP.
remap_vmalloc_range() set VM_DONTEXPAND | VM_DONTDUMP.

[akpm@linux-foundation.org: drivers/vfio/pci/vfio_pci.c fixup]
Signed-off-by: Konstantin 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: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-10-09 16:22:19 +09:00
..
Kconfig [media] Cleanup media Kconfig files 2012-08-21 07:55:47 -03:00
Makefile [media] Cleanup media Kconfig files 2012-08-21 07:55:47 -03:00
tuner-core.c [media] v4l: move v4l2 core into a separate directory 2012-08-13 23:02:38 -03:00
v4l2-common.c [media] v4l2: spi modalias is an array 2012-09-27 04:42:37 -03:00
v4l2-compat-ioctl32.c [media] v4l2-core: deprecate V4L2_BUF_TYPE_PRIVATE 2012-09-26 09:38:15 -03:00
v4l2-ctrls.c [media] v4l2-ctrls: add a filter function to v4l2_ctrl_add_handler 2012-10-01 17:07:07 -03:00
v4l2-dev.c [media] v4l2-dev: reorder checks into blocks of ioctls with similar properties 2012-09-26 14:52:07 -03:00
v4l2-device.c [media] v4l2-ctrls: add a filter function to v4l2_ctrl_add_handler 2012-10-01 17:07:07 -03:00
v4l2-event.c [media] v4l2: make vidioc_(un)subscribe_event const 2012-09-26 10:48:52 -03:00
v4l2-fh.c [media] v4l: move v4l2 core into a separate directory 2012-08-13 23:02:38 -03:00
v4l2-int-device.c [media] v4l: move v4l2 core into a separate directory 2012-08-13 23:02:38 -03:00
v4l2-ioctl.c [media] v4l2-ioctl.c: fix overlay support 2012-10-01 14:56:42 -03:00
v4l2-mem2mem.c [media] media v4l2-mem2mem: Use list_first_entry 2012-09-18 12:14:05 -03:00
v4l2-subdev.c [media] v4l2-subdev: add support for the new edid ioctls 2012-09-13 16:07:24 -03:00
videobuf2-core.c [media] videobuf2-core: Replace BUG_ON and return an error at vb2_queue_init() 2012-09-27 06:09:10 -03:00
videobuf2-dma-contig.c [media] v4l: move v4l2 core into a separate directory 2012-08-13 23:02:38 -03:00
videobuf2-dma-sg.c [media] v4l: move v4l2 core into a separate directory 2012-08-13 23:02:38 -03:00
videobuf2-memops.c mm: kill vma flag VM_RESERVED and mm->reserved_vm counter 2012-10-09 16:22:19 +09:00
videobuf2-vmalloc.c [media] v4l: move v4l2 core into a separate directory 2012-08-13 23:02:38 -03:00
videobuf-core.c [media] v4l: move v4l2 core into a separate directory 2012-08-13 23:02:38 -03:00
videobuf-dma-contig.c [media] v4l: move v4l2 core into a separate directory 2012-08-13 23:02:38 -03:00
videobuf-dma-sg.c mm: kill vma flag VM_RESERVED and mm->reserved_vm counter 2012-10-09 16:22:19 +09:00
videobuf-dvb.c [media] v4l: move v4l2 core into a separate directory 2012-08-13 23:02:38 -03:00
videobuf-vmalloc.c mm: kill vma flag VM_RESERVED and mm->reserved_vm counter 2012-10-09 16:22:19 +09:00