29 Apr, 2008

1 commit

• c33fff0af   kernel: use non-racy method for proc entries creation ... Browse Code »

  Use proc_create()/proc_create_data() to make sure that ->proc_fops and ->data
  be setup before gluing PDE to main tree.

  Signed-off-by: Denis V. Lunev
  Cc: Alexey Dobriyan
  Cc: "Eric W. Biederman"
  Cc: Ingo Molnar
  Signed-off-by: Andrew Morton
  Signed-off-by: Linus Torvalds

  Denis V. Lunev

  2008-04-29 23:06:22 +0800  

18 Feb, 2008

1 commit

• db4315d6f   timer_list: print relative expiry time signed ... Browse Code »

  Relative expiry time can get negative, so it should be signed.

  Signed-off-by: Pavel Machek
  Signed-off-by: Thomas Gleixner

  Pavel Machek

  2008-02-18 00:29:38 +0800  

02 Feb, 2008

1 commit

• 5df7fa1c6   tick-sched: add more debug information ... Browse Code »

  To allow better diagnosis of tick-sched related, especially NOHZ
  related problems, we need to know when the last wakeup via an irq
  happened and when the CPU left the idle state.

  Add two fields (idle_waketime, idle_exittime) to the tick_sched
  structure and add them to the timer_list output.

  Signed-off-by: Thomas Gleixner
  Signed-off-by: Ingo Molnar

  Thomas Gleixner

  2008-02-02 00:45:14 +0800  

29 Oct, 2007

1 commit

• 129f1d2c5   timer_list: Fix printk format strings ... Browse Code »

  This makes sure printk format strings contain no more than a single
  line.

  Signed-off-by: Vegard Nossum
  Signed-off-by: Thomas Gleixner

  Vegard Nossum

  2007-10-29 16:39:38 +0800  

01 Aug, 2007

1 commit

• 5ea473a1d   Fix leaks on /proc/{*/sched,sched_debug,timer_list,timer_stats} ... Browse Code »

  On every open/close one struct seq_operations leaks.
  Kudos to /proc/slab_allocators.

  Signed-off-by: Alexey Dobriyan
  Acked-by: Ingo Molnar
  Cc:
  Signed-off-by: Andrew Morton
  Signed-off-by: Linus Torvalds

  Alexey Dobriyan

  2007-08-01 06:39:40 +0800  

18 Jul, 2007

1 commit

• 9281acea6   kallsyms: make KSYM_NAME_LEN include space for trailing '\0' ... Browse Code »

  KSYM_NAME_LEN is peculiar in that it does not include the space for the
  trailing '\0', forcing all users to use KSYM_NAME_LEN + 1 when allocating
  buffer. This is nonsense and error-prone. Moreover, when the caller
  forgets that it's very likely to subtly bite back by corrupting the stack
  because the last position of the buffer is always cleared to zero.

  This patch increments KSYM_NAME_LEN by one and updates code accordingly.

  * off-by-one bug in asm-powerpc/kprobes.h::kprobe_lookup_name() macro
  is fixed.

  * Where MODULE_NAME_LEN and KSYM_NAME_LEN were used together,
  MODULE_NAME_LEN was treated as if it didn't include space for the
  trailing '\0'. Fix it.

  Signed-off-by: Tejun Heo
  Acked-by: Paulo Marques
  Cc: Benjamin Herrenschmidt
  Cc: Paul Mackerras
  Signed-off-by: Andrew Morton
  Signed-off-by: Linus Torvalds

  Tejun Heo

  2007-07-18 01:23:03 +0800  

10 May, 2007

1 commit

• 9b04bd275   Fix printk format warnings in timer_list.c ... Browse Code »

  u64 and s64 are not necessarily 'long long' on some 64-bit
  platforms, so explicit the type to kill the compiler warnings.

  Also consistently use '%Lu' which is unsigned.

  Signed-off-by: David S. Miller
  Cc: Thomas Gleixner
  Cc: Ingo Molnar
  Signed-off-by: Andrew Morton
  Signed-off-by: Linus Torvalds

  David Miller

  2007-05-10 03:30:50 +0800  

09 May, 2007

2 commits

• 9d65cb4a1   Fix race between cat /proc/*/wchan and rmmod et al ... Browse Code »

  kallsyms_lookup() can go iterating over modules list unprotected which is OK
  for emergency situations (oops), but not OK for regular stuff like
  /proc/*/wchan.

  Introduce lookup_symbol_name()/lookup_module_symbol_name() which copy symbol
  name into caller-supplied buffer or return -ERANGE. All copying is done with
  module_mutex held, so...

  Signed-off-by: Alexey Dobriyan
  Cc: Rusty Russell
  Signed-off-by: Andrew Morton
  Signed-off-by: Linus Torvalds

  Alexey Dobriyan

  2007-05-09 02:15:08 +0800  
• ffb451227   Simplify kallsyms_lookup() ... Browse Code »

  Several kallsyms_lookup() pass dummy arguments but only need, say, module's
  name. Make kallsyms_lookup() accept NULLs where possible.

  Also, makes picture clearer about what interfaces are needed for all symbol
  resolving business.

  Signed-off-by: Alexey Dobriyan
  Cc: Rusty Russell
  Acked-by: Ingo Molnar
  Signed-off-by: Andrew Morton
  Signed-off-by: Linus Torvalds

  Alexey Dobriyan

  2007-05-09 02:15:08 +0800  

24 Mar, 2007

1 commit

• 0444b3035   [PATCH] time: fix formatting in /proc/timer_list ... Browse Code »

  Fix the print formatting of three unsigned long fields in /proc/timer_list,
  which are currently being formatted as signed long.

  Signed-off-by: James Morris
  Acked-by: Ingo Molnar
  Cc: Thomas Gleixner
  Signed-off-by: Andrew Morton
  Signed-off-by: Linus Torvalds

  James Morris

  2007-03-24 02:01:21 +0800  

17 Feb, 2007

1 commit

• 289f480af   [PATCH] Add debugging feature /proc/timer_list ... Browse Code »

  add /proc/timer_list, which prints all currently pending (high-res) timers,
  all clock-event sources and their parameters in a human-readable form.

  Sample output:

  Timer List Version: v0.1
  HRTIMER_MAX_CLOCK_BASES: 2
  now at 4246046273872 nsecs

  cpu: 0
  clock 0:
  .index: 0
  .resolution: 1 nsecs
  .get_time: ktime_get_real
  .offset: 1273998312645738432 nsecs
  active timers:
  clock 1:
  .index: 1
  .resolution: 1 nsecs
  .get_time: ktime_get
  .offset: 0 nsecs
  active timers:
  #0: , hrtimer_sched_tick, hrtimer_stop_sched_tick, swapper/0
  # expires at 4246432689566 nsecs [in 386415694 nsecs]
  #1: , hrtimer_wakeup, do_nanosleep, pcscd/2050
  # expires at 4247018194689 nsecs [in 971920817 nsecs]
  #2: , hrtimer_wakeup, do_nanosleep, irqbalance/1909
  # expires at 4247351358392 nsecs [in 1305084520 nsecs]
  #3: , hrtimer_wakeup, do_nanosleep, crond/2157
  # expires at 4249097614968 nsecs [in 3051341096 nsecs]
  #4: , it_real_fn, do_setitimer, syslogd/1888
  # expires at 4251329900926 nsecs [in 5283627054 nsecs]
  .expires_next : 4246432689566 nsecs
  .hres_active : 1
  .check_clocks : 0
  .nr_events : 31306
  .idle_tick : 4246020791890 nsecs
  .tick_stopped : 1
  .idle_jiffies : 986504
  .idle_calls : 40700
  .idle_sleeps : 36014
  .idle_entrytime : 4246019418883 nsecs
  .idle_sleeptime : 4178181972709 nsecs

  cpu: 1
  clock 0:
  .index: 0
  .resolution: 1 nsecs
  .get_time: ktime_get_real
  .offset: 1273998312645738432 nsecs
  active timers:
  clock 1:
  .index: 1
  .resolution: 1 nsecs
  .get_time: ktime_get
  .offset: 0 nsecs
  active timers:
  #0: , hrtimer_sched_tick, hrtimer_restart_sched_tick, swapper/0
  # expires at 4246050084568 nsecs [in 3810696 nsecs]
  #1: , hrtimer_wakeup, do_nanosleep, atd/2227
  # expires at 4261010635003 nsecs [in 14964361131 nsecs]
  #2: , hrtimer_wakeup, do_nanosleep, smartd/2332
  # expires at 5469485798970 nsecs [in 1223439525098 nsecs]
  .expires_next : 4246050084568 nsecs
  .hres_active : 1
  .check_clocks : 0
  .nr_events : 24043
  .idle_tick : 4246046084568 nsecs
  .tick_stopped : 0
  .idle_jiffies : 986510
  .idle_calls : 26360
  .idle_sleeps : 22551
  .idle_entrytime : 4246043874339 nsecs
  .idle_sleeptime : 4170763761184 nsecs

  tick_broadcast_mask: 00000003
  event_broadcast_mask: 00000001

  CPU#0's local event device:

  Clock Event Device: lapic
  capabilities: 0000000e
  max_delta_ns: 807385544
  min_delta_ns: 1443
  mult: 44624025
  shift: 32
  set_next_event: lapic_next_event
  set_mode: lapic_timer_setup
  event_handler: hrtimer_interrupt
  .installed: 1
  .expires: 4246432689566 nsecs

  CPU#1's local event device:

  Clock Event Device: lapic
  capabilities: 0000000e
  max_delta_ns: 807385544
  min_delta_ns: 1443
  mult: 44624025
  shift: 32
  set_next_event: lapic_next_event
  set_mode: lapic_timer_setup
  event_handler: hrtimer_interrupt
  .installed: 1
  .expires: 4246050084568 nsecs

  Clock Event Device: hpet
  capabilities: 00000007
  max_delta_ns: 2147483647
  min_delta_ns: 3352
  mult: 61496110
  shift: 32
  set_next_event: hpet_next_event
  set_mode: hpet_set_mode
  event_handler: handle_nextevt_broadcast

  Signed-off-by: Ingo Molnar
  Signed-off-by: Thomas Gleixner
  Cc: john stultz
  Cc: Roman Zippel
  Signed-off-by: Andrew Morton
  Signed-off-by: Linus Torvalds

  Ingo Molnar

  2007-02-17 00:13:59 +0800