mirror of https://gitee.com/openkylin/linux.git
314e51b985
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> |
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| .. | ||
| Kconfig | ||
| Makefile | ||
| accel_2d.c | ||
| backlight.c | ||
| cdv_device.c | ||
| cdv_device.h | ||
| cdv_intel_crt.c | ||
| cdv_intel_display.c | ||
| cdv_intel_dp.c | ||
| cdv_intel_hdmi.c | ||
| cdv_intel_lvds.c | ||
| framebuffer.c | ||
| framebuffer.h | ||
| gem.c | ||
| gtt.c | ||
| gtt.h | ||
| intel_bios.c | ||
| intel_bios.h | ||
| intel_gmbus.c | ||
| intel_i2c.c | ||
| mdfld_device.c | ||
| mdfld_dsi_dpi.c | ||
| mdfld_dsi_dpi.h | ||
| mdfld_dsi_output.c | ||
| mdfld_dsi_output.h | ||
| mdfld_dsi_pkg_sender.c | ||
| mdfld_dsi_pkg_sender.h | ||
| mdfld_intel_display.c | ||
| mdfld_output.c | ||
| mdfld_output.h | ||
| mdfld_tmd_vid.c | ||
| mdfld_tpo_vid.c | ||
| mid_bios.c | ||
| mid_bios.h | ||
| mmu.c | ||
| oaktrail.h | ||
| oaktrail_crtc.c | ||
| oaktrail_device.c | ||
| oaktrail_hdmi.c | ||
| oaktrail_hdmi_i2c.c | ||
| oaktrail_lvds.c | ||
| opregion.c | ||
| opregion.h | ||
| power.c | ||
| power.h | ||
| psb_device.c | ||
| psb_drv.c | ||
| psb_drv.h | ||
| psb_intel_display.c | ||
| psb_intel_display.h | ||
| psb_intel_drv.h | ||
| psb_intel_lvds.c | ||
| psb_intel_modes.c | ||
| psb_intel_reg.h | ||
| psb_intel_sdvo.c | ||
| psb_intel_sdvo_regs.h | ||
| psb_irq.c | ||
| psb_irq.h | ||
| psb_lid.c | ||
| psb_reg.h | ||
| tc35876x-dsi-lvds.c | ||
| tc35876x-dsi-lvds.h | ||