mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-11 21:38:32 +08:00
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> |
||
|---|---|---|
| .. | ||
| 44x_emulate.c | ||
| 44x_tlb.c | ||
| 44x_tlb.h | ||
| 44x.c | ||
| book3s_32_mmu_host.c | ||
| book3s_32_mmu.c | ||
| book3s_32_sr.S | ||
| book3s_64_mmu_host.c | ||
| book3s_64_mmu_hv.c | ||
| book3s_64_mmu.c | ||
| book3s_64_slb.S | ||
| book3s_64_vio_hv.c | ||
| book3s_64_vio.c | ||
| book3s_emulate.c | ||
| book3s_exports.c | ||
| book3s_hv_builtin.c | ||
| book3s_hv_interrupts.S | ||
| book3s_hv_rm_mmu.c | ||
| book3s_hv_rmhandlers.S | ||
| book3s_hv.c | ||
| book3s_interrupts.S | ||
| book3s_mmu_hpte.c | ||
| book3s_paired_singles.c | ||
| book3s_pr_papr.c | ||
| book3s_pr.c | ||
| book3s_rmhandlers.S | ||
| book3s_segment.S | ||
| book3s.c | ||
| booke_emulate.c | ||
| booke_interrupts.S | ||
| booke.c | ||
| booke.h | ||
| bookehv_interrupts.S | ||
| e500_emulate.c | ||
| e500_tlb.c | ||
| e500.c | ||
| e500.h | ||
| e500mc.c | ||
| emulate.c | ||
| fpu.S | ||
| Kconfig | ||
| Makefile | ||
| powerpc.c | ||
| timing.c | ||
| timing.h | ||
| trace.h | ||