[Xen-devel] [PATCH 0/6] xen: Use %*pb[l] for printing bitmaps

[Andrew Cooper <andrew.cooper3@xxxxxxxxxx>]

I was trying to debug a cpumask problem, and got irritated with how awkard it
was to render and print the masks.  Luckily, the fix is quite simple and far
nicer to use.

The overall diffstat is to patch 5 is:

  add/remove: 0/4 grow/shrink: 2/11 up/down: 603/-1191 (-588)
  Function                                     old     new   delta
  vsnprintf                                   2775    3348    +573
  dump_runq                                    279     309     +30
  null_dump                                    675     659     -16
  dump_irqs                                    718     702     -16
  machine_crash_shutdown                       594     570     -24
  csched_dump                                  527     503     -24
  rt_dump_vcpu.isra                            254     222     -32
  dump_evtchn_info                             657     625     -32
  print_cpumap                                  55       -     -55
  cpuset_print.constprop                        61       -     -61
  csched_dump_pcpu                             473     401     -72
  mcheck_cmn_handler                          1224    1146     -78
  null_dump_pcpu                               493     413     -80
  dump_domains                                1160    1064     -96
  csched2_dump                                1549    1389    -160
  bitmap_scnprintf                             193       -    -193
  bitmap_scnlistprintf                         252       -    -252
  Total: Before=3295448, After=3294860, chg -0.02%

Andrew Cooper (6):
  xen/vsprintf: Introduce %*pb[l] for printing bitmaps
  xen/sched: Use %*pb[l] instead of cpumask_scn{,list}printf()
  xen/common: Use %*pb[l] instead of {cpu,node}mask_scn{,list}printf()
  xen/x86: Use %*pb[l] instead of cpumask_scn{,list}printf()
  xen/bitmap: Drop all bitmap_scn{,list}printf() infrastructure
  xen/keyhandler: Drop keyhandler_scratch

 docs/misc/printk-formats.txt  |   8 ++++
 xen/arch/x86/cpu/mcheck/mce.c |   9 ++--
 xen/arch/x86/crash.c          |   7 +--
 xen/arch/x86/irq.c            |   7 +--
 xen/arch/x86/numa.c           |  11 ++---
 xen/common/bitmap.c           | 105 ------------------------------------------
 xen/common/cpupool.c          |  12 ++---
 xen/common/efi/boot.c         |   5 +-
 xen/common/event_channel.c    |   6 +--
 xen/common/keyhandler.c       |  61 +++++++-----------------
 xen/common/sched_credit.c     |  17 ++-----
 xen/common/sched_credit2.c    |  26 ++++-------
 xen/common/sched_null.c       |  15 ++----
 xen/common/sched_rt.c         |   5 +-
 xen/common/vsprintf.c         |  97 ++++++++++++++++++++++++++++++++++++++
 xen/include/xen/bitmap.h      |   6 ---
 xen/include/xen/cpumask.h     |  18 --------
 xen/include/xen/keyhandler.h  |   3 --
 xen/include/xen/nodemask.h    |  34 --------------
 19 files changed, 163 insertions(+), 289 deletions(-)

-- 
2.1.4


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