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https://github.com/torvalds/linux
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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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.. | ||
cpufreq | ||
.gitignore | ||
acpi-ext.c | ||
acpi.c | ||
asm-offsets.c | ||
audit.c | ||
brl_emu.c | ||
crash.c | ||
crash_dump.c | ||
cyclone.c | ||
dma-mapping.c | ||
efi.c | ||
efi_stub.S | ||
elfcore.c | ||
entry.h | ||
entry.S | ||
err_inject.c | ||
esi.c | ||
esi_stub.S | ||
fsys.S | ||
fsyscall_gtod_data.h | ||
ftrace.c | ||
gate-data.S | ||
gate.lds.S | ||
gate.S | ||
head.S | ||
ia64_ksyms.c | ||
init_task.c | ||
iosapic.c | ||
irq.c | ||
irq_ia64.c | ||
irq_lsapic.c | ||
ivt.S | ||
jprobes.S | ||
kprobes.c | ||
machine_kexec.c | ||
machvec.c | ||
Makefile | ||
Makefile.gate | ||
mca.c | ||
mca_asm.S | ||
mca_drv.c | ||
mca_drv.h | ||
mca_drv_asm.S | ||
minstate.h | ||
module.c | ||
msi_ia64.c | ||
nr-irqs.c | ||
numa.c | ||
pal.S | ||
palinfo.c | ||
paravirt.c | ||
paravirt_inst.h | ||
paravirt_patch.c | ||
paravirt_patchlist.c | ||
paravirt_patchlist.h | ||
paravirtentry.S | ||
patch.c | ||
pci-dma.c | ||
pci-swiotlb.c | ||
perfmon.c | ||
perfmon_default_smpl.c | ||
perfmon_generic.h | ||
perfmon_itanium.h | ||
perfmon_mckinley.h | ||
perfmon_montecito.h | ||
process.c | ||
ptrace.c | ||
relocate_kernel.S | ||
sal.c | ||
salinfo.c | ||
setup.c | ||
sigframe.h | ||
signal.c | ||
smp.c | ||
smpboot.c | ||
stacktrace.c | ||
sys_ia64.c | ||
time.c | ||
topology.c | ||
traps.c | ||
unaligned.c | ||
uncached.c | ||
unwind.c | ||
unwind_decoder.c | ||
unwind_i.h | ||
vmlinux.lds.S |