linux-kernel - Re: [PATCH 00/11] mm: debug: formatting memory management structs

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Message-ID: <558DC55D.3000804@oracle.com>
Date:	Fri, 26 Jun 2015 17:34:21 -0400
From:	Sasha Levin <sasha.levin@...cle.com>
To:	linux-mm@...ck.org
CC:	akpm@...ux-foundation.org, linux-kernel@...r.kernel.org,
	kirill@...temov.name
Subject: Re: [PATCH 00/11] mm: debug: formatting memory management structs

There were no objections beyond Andrew's request for a better changelog.

If there are no any further objections, can it be merged please?

On 05/14/2015 01:10 PM, Sasha Levin wrote:
> This patch series adds knowledge about various memory management structures
> to the standard print functions.
> 
> In essence, it allows us to easily print those structures:
> 
> 	printk("%pZp %pZm %pZv", page, mm, vma);
> 
> This allows us to customize output when hitting bugs even further, thus
> we introduce VM_BUG() which allows printing anything when hitting a bug
> rather than just a single piece of information.
> 
> This also means we can get rid of VM_BUG_ON_* since they're now nothing
> more than a format string.
> 
> Changes since RFC:
>  - Address comments by Kirill.
> 
> Sasha Levin (11):
>   mm: debug: format flags in a buffer
>   mm: debug: deal with a new family of MM pointers
>   mm: debug: dump VMA into a string rather than directly on screen
>   mm: debug: dump struct MM into a string rather than directly on
>     screen
>   mm: debug: dump page into a string rather than directly on screen
>   mm: debug: clean unused code
>   mm: debug: VM_BUG()
>   mm: debug: kill VM_BUG_ON_PAGE
>   mm: debug: kill VM_BUG_ON_VMA
>   mm: debug: kill VM_BUG_ON_MM
>   mm: debug: use VM_BUG() to help with debug output
> 
>  arch/arm/mm/mmap.c               |    2 +-
>  arch/frv/mm/elf-fdpic.c          |    4 +-
>  arch/mips/mm/gup.c               |    4 +-
>  arch/parisc/kernel/sys_parisc.c  |    2 +-
>  arch/powerpc/mm/hugetlbpage.c    |    2 +-
>  arch/powerpc/mm/pgtable_64.c     |    4 +-
>  arch/s390/mm/gup.c               |    2 +-
>  arch/s390/mm/mmap.c              |    2 +-
>  arch/s390/mm/pgtable.c           |    6 +--
>  arch/sh/mm/mmap.c                |    2 +-
>  arch/sparc/kernel/sys_sparc_64.c |    4 +-
>  arch/sparc/mm/gup.c              |    2 +-
>  arch/sparc/mm/hugetlbpage.c      |    4 +-
>  arch/tile/mm/hugetlbpage.c       |    2 +-
>  arch/x86/kernel/sys_x86_64.c     |    2 +-
>  arch/x86/mm/gup.c                |    8 ++--
>  arch/x86/mm/hugetlbpage.c        |    2 +-
>  arch/x86/mm/pgtable.c            |    6 +--
>  include/linux/huge_mm.h          |    2 +-
>  include/linux/hugetlb.h          |    2 +-
>  include/linux/hugetlb_cgroup.h   |    4 +-
>  include/linux/mm.h               |   22 ++++-----
>  include/linux/mmdebug.h          |   40 ++++++----------
>  include/linux/page-flags.h       |   26 +++++-----
>  include/linux/pagemap.h          |   11 +++--
>  include/linux/rmap.h             |    2 +-
>  kernel/fork.c                    |    2 +-
>  lib/vsprintf.c                   |   22 +++++++++
>  mm/balloon_compaction.c          |    4 +-
>  mm/cleancache.c                  |    6 +--
>  mm/compaction.c                  |    2 +-
>  mm/debug.c                       |   98 ++++++++++++++++++++------------------
>  mm/filemap.c                     |   18 +++----
>  mm/gup.c                         |   12 ++---
>  mm/huge_memory.c                 |   50 +++++++++----------
>  mm/hugetlb.c                     |   28 +++++------
>  mm/hugetlb_cgroup.c              |    2 +-
>  mm/internal.h                    |    8 ++--
>  mm/interval_tree.c               |    2 +-
>  mm/kasan/report.c                |    2 +-
>  mm/ksm.c                         |   13 ++---
>  mm/memcontrol.c                  |   48 +++++++++----------
>  mm/memory.c                      |   10 ++--
>  mm/memory_hotplug.c              |    2 +-
>  mm/migrate.c                     |    6 +--
>  mm/mlock.c                       |    4 +-
>  mm/mmap.c                        |   15 +++---
>  mm/mremap.c                      |    4 +-
>  mm/page_alloc.c                  |   28 +++++------
>  mm/page_io.c                     |    4 +-
>  mm/pagewalk.c                    |    2 +-
>  mm/pgtable-generic.c             |    8 ++--
>  mm/rmap.c                        |   20 ++++----
>  mm/shmem.c                       |   10 ++--
>  mm/slub.c                        |    4 +-
>  mm/swap.c                        |   39 +++++++--------
>  mm/swap_state.c                  |   16 +++----
>  mm/swapfile.c                    |    8 ++--
>  mm/vmscan.c                      |   24 +++++-----
>  59 files changed, 355 insertions(+), 335 deletions(-)
> 

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