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 | ||
| ipath_common.h | ||
| ipath_cq.c | ||
| ipath_debug.h | ||
| ipath_diag.c | ||
| ipath_dma.c | ||
| ipath_driver.c | ||
| ipath_eeprom.c | ||
| ipath_file_ops.c | ||
| ipath_fs.c | ||
| ipath_iba6110.c | ||
| ipath_init_chip.c | ||
| ipath_intr.c | ||
| ipath_kernel.h | ||
| ipath_keys.c | ||
| ipath_mad.c | ||
| ipath_mmap.c | ||
| ipath_mr.c | ||
| ipath_qp.c | ||
| ipath_rc.c | ||
| ipath_registers.h | ||
| ipath_ruc.c | ||
| ipath_sdma.c | ||
| ipath_srq.c | ||
| ipath_stats.c | ||
| ipath_sysfs.c | ||
| ipath_uc.c | ||
| ipath_ud.c | ||
| ipath_user_pages.c | ||
| ipath_user_sdma.c | ||
| ipath_user_sdma.h | ||
| ipath_verbs.c | ||
| ipath_verbs.h | ||
| ipath_verbs_mcast.c | ||
| ipath_wc_ppc64.c | ||
| ipath_wc_x86_64.c | ||