linux-toradex.git/tools/vm, branch v5.1-rc4

tools/vm/slabinfo: clean up usage menu debug items

2019-03-06T05:07:20+00:00

Attempt to make the usage comment for debug options a little cleaner.

Link: http://lkml.kernel.org/r/20190212001219.27769-5-tobin@kernel.org
Signed-off-by: Tobin C. Harding 
Acked-by: Christoph Lameter 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

tools/vm/slabinfo: align usage output columns

2019-03-06T05:07:20+00:00

Usage message uses spaces not tabspaces, a few tabspaces have snuck in
making the columns not align correctly when output.

Align usage output columns using spaces instead of tabspaces.

Link: http://lkml.kernel.org/r/20190212001219.27769-4-tobin@kernel.org
Signed-off-by: Tobin C. Harding 
Acked-by: Christoph Lameter 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

tools/vm/slabinfo: put options in alphabetic order

2019-03-06T05:07:20+00:00

Primarily the usage message lists options in alphabetic order however
there are a bunch of the options that are not in alphabetic order.

Put options in alphabetic order.

Link: http://lkml.kernel.org/r/20190212001219.27769-3-tobin@kernel.org
Signed-off-by: Tobin C. Harding 
Acked-by: Christoph Lameter 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

tools/vm/slabinfo: update options in usage message

2019-03-06T05:07:20+00:00

Currently usage message list only a subset of the available options.
should list them all.

Update options in usage massage to include all available options.

Link: http://lkml.kernel.org/r/20190212001219.27769-2-tobin@kernel.org
Signed-off-by: Tobin C. Harding 
Acked-by: Christoph Lameter 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

mm: convert PG_balloon to PG_offline

2019-03-06T05:07:14+00:00

PG_balloon was introduced to implement page migration/compaction for
pages inflated in virtio-balloon.  Nowadays, it is only a marker that a
page is part of virtio-balloon and therefore logically offline.

We also want to make use of this flag in other balloon drivers - for
inflated pages or when onlining a section but keeping some pages offline
(e.g.  used right now by XEN and Hyper-V via set_online_page_callback()).

We are going to expose this flag to dump tools like makedumpfile.  But
instead of exposing PG_balloon, let's generalize the concept of marking
pages as logically offline, so it can be reused for other purposes later
on.

Rename PG_balloon to PG_offline.  This is an indicator that the page is
logically offline, the content stale and that it should not be touched
(e.g.  a hypervisor would have to allocate backing storage in order for
the guest to dump an unused page).  We can then e.g.  exclude such pages
from dumps.

We replace and reuse KPF_BALLOON (23), as this shouldn't really harm
(and for now the semantics stay the same).  In following patches, we
will make use of this bit also in other balloon drivers.  While at it,
document PGTABLE.

[akpm@linux-foundation.org: fix comment text, per David]
Link: http://lkml.kernel.org/r/20181119101616.8901-3-david@redhat.com
Signed-off-by: David Hildenbrand 
Acked-by: Konstantin Khlebnikov 
Acked-by: Michael S. Tsirkin 
Acked-by: Pankaj gupta 
Cc: Jonathan Corbet 
Cc: Alexey Dobriyan 
Cc: Mike Rapoport 
Cc: Christian Hansen 
Cc: Vlastimil Babka 
Cc: "Kirill A. Shutemov" 
Cc: Stephen Rothwell 
Cc: Matthew Wilcox 
Cc: Michal Hocko 
Cc: Pavel Tatashin 
Cc: Alexander Duyck 
Cc: Naoya Horiguchi 
Cc: Miles Chen 
Cc: David Rientjes 
Cc: Kazuhito Hagio 
Cc: Arnd Bergmann 
Cc: Baoquan He 
Cc: Borislav Petkov 
Cc: Boris Ostrovsky 
Cc: Dave Young 
Cc: Greg Kroah-Hartman 
Cc: Haiyang Zhang 
Cc: Juergen Gross 
Cc: Julien Freche 
Cc: Kairui Song 
Cc: "K. Y. Srinivasan" 
Cc: Len Brown 
Cc: Lianbo Jiang 
Cc: Michal Hocko 
Cc: Nadav Amit 
Cc: Omar Sandoval 
Cc: Pavel Machek 
Cc: Rafael J. Wysocki 
Cc: "Rafael J. Wysocki" 
Cc: Stefano Stabellini 
Cc: Stephen Hemminger 
Cc: Vitaly Kuznetsov 
Cc: Xavier Deguillard 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

tools/vm/page_owner: use page_owner_sort in the use example

2019-01-09T01:15:11+00:00

The example in comment does not useable because the output binary is
named "page_owner_sort", not "sort".

Also add a reference to Documentation/vm/page_owner.rst

Link: http://lkml.kernel.org/r/1546515361-8317-1-git-send-email-miles.chen@mediatek.com
Signed-off-by: Miles Chen 
Reviewed-by: Andrew Morton 
Cc: Joonsoo Kim 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

tools/vm/page-types.c: fix "kpagecount returned fewer pages than expected" failures

2018-12-28T20:11:50+00:00

Because kpagecount_read() fakes success if map counts are not being
collected, clamp the page count passed to it by walk_pfn() to the pages
value returned by the preceding call to kpageflags_read().

Link: http://lkml.kernel.org/r/1543962269-26116-1-git-send-email-anthony.yznaga@oracle.com
Fixes: 7f1d23e60718 ("tools/vm/page-types.c: include shared map counts")
Signed-off-by: Anthony Yznaga 
Reviewed-by: Naoya Horiguchi 
Cc: Vlastimil Babka 
Cc: Matthew Wilcox 
Cc: David Rientjes 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

tools/vm/page-types.c: fix "defined but not used" warning

2018-09-04T23:45:02+00:00

debugfs_known_mountpoints[] is not used any more, so let's remove it.

Link: http://lkml.kernel.org/r/1535102651-19418-1-git-send-email-n-horiguchi@ah.jp.nec.com
Signed-off-by: Naoya Horiguchi 
Reviewed-by: Andrew Morton 
Cc: Matthew Wilcox 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

tools/vm/slabinfo.c: fix sign-compare warning

2018-09-04T23:45:02+00:00

Currently we get the following compiler warning:

    slabinfo.c:854:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
       if (s->object_size < min_objsize)
                          ^

due to the mismatch of signed/unsigned comparison.  ->object_size and
->slab_size are never expected to be negative, so let's define them as
unsigned int.

[n-horiguchi@ah.jp.nec.com: convert everything - none of these can be negative]
  Link: http://lkml.kernel.org/r/20180826234947.GA9787@hori1.linux.bs1.fc.nec.co.jp
Link: http://lkml.kernel.org/r/1535103134-20239-1-git-send-email-n-horiguchi@ah.jp.nec.com
Signed-off-by: Naoya Horiguchi 
Reviewed-by: Andrew Morton 
Cc: Matthew Wilcox 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

tools/vm/page-types.c: add support for idle page tracking

2018-08-17T23:20:28+00:00

Add a flag which causes page-types to use the kernels's idle page
tracking to mark pages idle.  As the tool already prints the idle flag
if set, subsequent runs will show which pages have been accessed since
last run.

[akpm@linux-foundation.org: simplify mark_page_idle()]
[chansen3@cisco.com: reorganize mark_page_idle() logic, add docs]
  Link: http://lkml.kernel.org/r/20180706172237.21691-1-chansen3@cisco.com
Link: http://lkml.kernel.org/r/20180612153223.13174-1-chansen3@cisco.com
Signed-off-by: Christian Hansen 
Reviewed-by: Andrew Morton 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds