1. 15 Jun, 2009 2 commits
    • Ingo Molnar's avatar
      perf record: Fix fast task-exit race · 613d8602
      Ingo Molnar authored
      Recording with -a (or with -p) can race with tasks going away:
      
         couldn't open /proc/8440/maps
      
      Causing an early exit() and no recording done.
      
      Do not abort the recording session - instead just skip that task.
      
      Also, only print the warnings under -v.
      
      Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
      Cc: Mike Galbraith <efault@gmx.de>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
      LKML-Reference: <new-submission>
      Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
      613d8602
    • Ingo Molnar's avatar
      perf_counter, x86: Fix kernel-space call-chains · 038e836e
      Ingo Molnar authored
      Kernel-space call-chains were trimmed at the first entry because
      we never processed anything beyond the first stack context.
      
      Allow the backtrace to jump from NMI to IRQ stack then to task stack
      and finally user-space stack.
      
      Also calculate the stack and bp variables correctly so that the
      stack walker does not exit early.
      
      We can get deep traces as a result, visible in perf report -D output:
      
      0x32af0 [0xe0]: PERF_EVENT (IP, 5): 15134: 0xffffffff815225fd period: 1
      ... chain: u:2, k:22, nr:24
      .....  0: 0xffffffff815225fd
      .....  1: 0xffffffff810ac51c
      .....  2: 0xffffffff81018e29
      .....  3: 0xffffffff81523939
      .....  4: 0xffffffff81524b8f
      .....  5: 0xffffffff81524bd9
      .....  6: 0xffffffff8105e498
      .....  7: 0xffffffff8152315a
      .....  8: 0xffffffff81522c3a
      .....  9: 0xffffffff810d9b74
      ..... 10: 0xffffffff810dbeec
      ..... 11: 0xffffffff810dc3fb
      
      This is a 22-entries kernel-space chain.
      
      (We still only record reliable stack entries.)
      
      Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
      Cc: Mike Galbraith <efault@gmx.de>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
      LKML-Reference: <new-submission>
      Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
      038e836e
  2. 14 Jun, 2009 3 commits
    • Ingo Molnar's avatar
      perf_counter, x86: Fix call-chain walking · 5a6cec3a
      Ingo Molnar authored
      Fix the ptregs variant when we hit user-mode tasks.
      
      Cc: Frederic Weisbecker <fweisbec@gmail.com>
      Cc: Pekka Enberg <penberg@cs.helsinki.fi>
      Cc: Arjan van de Ven <arjan@infradead.org>
      Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
      Cc: Mike Galbraith <efault@gmx.de>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
      LKML-Reference: <new-submission>
      Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
      5a6cec3a
    • Ingo Molnar's avatar
      perf record/report: Add call graph / call chain profiling · 3efa1cc9
      Ingo Molnar authored
      Add the first steps of call-graph profiling:
      
       - add the -c (--call-graph) option to perf record
       - parse the call-graph record and printout out under -D (--dump-trace)
      
      The call-graph data is not put into the histogram yet, but it
      can be seen that it's being processed correctly:
      
      0x3ce0 [0x38]: event: 35
      .
      . ... raw event: size 56 bytes
      .  0000:  23 00 00 00 05 00 38 00 d4 df 0e 81 ff ff ff ff  #.....8........
      .  0010:  60 0b 00 00 60 0b 00 00 03 00 00 00 01 00 02 00  `...`..........
      .  0020:  d4 df 0e 81 ff ff ff ff a0 61 ed 41 36 00 00 00  .........a.A6..
      .  0030:  04 92 e6 41 36 00 00 00                          .a.A6..
      .
      0x3ce0 [0x38]: PERF_EVENT (IP, 5): 2912: 0xffffffff810edfd4 period: 1
      ... chain: u:2, k:1, nr:3
      .....  0: 0xffffffff810edfd4
      .....  1: 0x3641ed61a0
      .....  2: 0x3641e69204
       ... thread: perf:2912
       ...... dso: [kernel]
      
      This shows a 3-entry call-graph: with 1 kernel-space and two user-space
      entries
      
      Cc: Frederic Weisbecker <fweisbec@gmail.com>
      Cc: Pekka Enberg <penberg@cs.helsinki.fi>
      Cc: Arjan van de Ven <arjan@infradead.org>
      Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
      Cc: Mike Galbraith <efault@gmx.de>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
      LKML-Reference: <new-submission>
      Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
      3efa1cc9
    • Ingo Molnar's avatar
      perf report: Print out raw events in hexa · 8465b050
      Ingo Molnar authored
      Print out events in hexa dump format, when -D is specified:
      
      0x4868 [0x48]: event: 1
      .
      . ... raw event: size 72 bytes
      .  0000:  01 00 00 00 00 00 48 00 d4 72 00 00 d4 72 00 00  ......H..r...r.
      .  0010:  00 00 40 f2 3e 00 00 00 00 30 01 00 00 00 00 00  ..@.>....0.....
      .  0020:  00 00 00 00 00 00 00 00 2f 75 73 72 2f 6c 69 62  ......../usr/li
      .  0030:  36 34 2f 6c 69 62 65 6c 66 2d 30 2e 31 34 31 2e  64/libelf-0.141
      .  0040:  73 6f 00 00 00 00 00 00                          f-0.141
      .
      0x4868 [0x48]: PERF_EVENT_MMAP 29396: [0x3ef2400000(0x13000) @ (nil)]: /usr/lib64/libelf-0.141.so
      
      This helps the debugging of mis-parsing of data files, and helps
      the addition of new sample/trace formats.
      
      Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
      Cc: Mike Galbraith <efault@gmx.de>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
      LKML-Reference: <new-submission>
      Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
      8465b050
  3. 13 Jun, 2009 14 commits
    • Frederic Weisbecker's avatar
      perf annotate: Fixes for filename:line displays · c17c2db1
      Frederic Weisbecker authored
      - fix addr2line on userspace binary: don't only check kernel image.
      - fix string allocation size for path: missing ending null char room
      - fix overflow in symbol extra info
      Reported-by: default avatarIngo Molnar <mingo@elte.hu>
      Signed-off-by: default avatarFrederic Weisbecker <fweisbec@gmail.com>
      Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
      Cc: Mike Galbraith <efault@gmx.de>
      Cc: Paul Mackerras <paulus@samba.org>
      LKML-Reference: <1244907563-7820-1-git-send-email-fweisbec@gmail.com>
      Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
      c17c2db1
    • Ingo Molnar's avatar
      perf stat: Enable raw data to be printed · ef281a19
      Ingo Molnar authored
      If -vv (very verbose) is specified, print out raw data
      in the following format:
      
      $ perf stat -vv -r 3 ./loop_1b_instructions
      
      [ perf stat: executing run #1 ... ]
      [ perf stat: executing run #2 ... ]
      [ perf stat: executing run #3 ... ]
      
      debug:              runtime[0]: 235871872
      debug:             walltime[0]: 236646752
      debug:       runtime_cycles[0]: 755150182
      debug:            counter/0[0]: 235871872
      debug:            counter/1[0]: 235871872
      debug:            counter/2[0]: 235871872
      debug:               scaled[0]: 0
      debug:            counter/0[1]: 2
      debug:            counter/1[1]: 235870662
      debug:            counter/2[1]: 235870662
      debug:               scaled[1]: 0
      debug:            counter/0[2]: 1
      debug:            counter/1[2]: 235870437
      debug:            counter/2[2]: 235870437
      debug:               scaled[2]: 0
      debug:            counter/0[3]: 140
      debug:            counter/1[3]: 235870298
      debug:            counter/2[3]: 235870298
      debug:               scaled[3]: 0
      debug:            counter/0[4]: 755150182
      debug:            counter/1[4]: 235870145
      debug:            counter/2[4]: 235870145
      debug:               scaled[4]: 0
      debug:            counter/0[5]: 1001411258
      debug:            counter/1[5]: 235868838
      debug:            counter/2[5]: 235868838
      debug:               scaled[5]: 0
      debug:            counter/0[6]: 27897
      debug:            counter/1[6]: 235868560
      debug:            counter/2[6]: 235868560
      debug:               scaled[6]: 0
      debug:            counter/0[7]: 2910
      debug:            counter/1[7]: 235868151
      debug:            counter/2[7]: 235868151
      debug:               scaled[7]: 0
      debug:              runtime[0]: 235980257
      debug:             walltime[0]: 236770942
      debug:       runtime_cycles[0]: 755114546
      debug:            counter/0[0]: 235980257
      debug:            counter/1[0]: 235980257
      debug:            counter/2[0]: 235980257
      debug:               scaled[0]: 0
      debug:            counter/0[1]: 3
      debug:            counter/1[1]: 235980049
      debug:            counter/2[1]: 235980049
      debug:               scaled[1]: 0
      debug:            counter/0[2]: 1
      debug:            counter/1[2]: 235979907
      debug:            counter/2[2]: 235979907
      debug:               scaled[2]: 0
      debug:            counter/0[3]: 135
      debug:            counter/1[3]: 235979780
      debug:            counter/2[3]: 235979780
      debug:               scaled[3]: 0
      debug:            counter/0[4]: 755114546
      debug:            counter/1[4]: 235979652
      debug:            counter/2[4]: 235979652
      debug:               scaled[4]: 0
      debug:            counter/0[5]: 1001439771
      debug:            counter/1[5]: 235979304
      debug:            counter/2[5]: 235979304
      debug:               scaled[5]: 0
      debug:            counter/0[6]: 23723
      debug:            counter/1[6]: 235979050
      debug:            counter/2[6]: 235979050
      debug:               scaled[6]: 0
      debug:            counter/0[7]: 2213
      debug:            counter/1[7]: 235978820
      debug:            counter/2[7]: 235978820
      debug:               scaled[7]: 0
      debug:              runtime[0]: 235888002
      debug:             walltime[0]: 236700533
      debug:       runtime_cycles[0]: 754881504
      debug:            counter/0[0]: 235888002
      debug:            counter/1[0]: 235888002
      debug:            counter/2[0]: 235888002
      debug:               scaled[0]: 0
      debug:            counter/0[1]: 2
      debug:            counter/1[1]: 235887793
      debug:            counter/2[1]: 235887793
      debug:               scaled[1]: 0
      debug:            counter/0[2]: 1
      debug:            counter/1[2]: 235887645
      debug:            counter/2[2]: 235887645
      debug:               scaled[2]: 0
      debug:            counter/0[3]: 135
      debug:            counter/1[3]: 235887499
      debug:            counter/2[3]: 235887499
      debug:               scaled[3]: 0
      debug:            counter/0[4]: 754881504
      debug:            counter/1[4]: 235887368
      debug:            counter/2[4]: 235887368
      debug:               scaled[4]: 0
      debug:            counter/0[5]: 1001401731
      debug:            counter/1[5]: 235887024
      debug:            counter/2[5]: 235887024
      debug:               scaled[5]: 0
      debug:            counter/0[6]: 24212
      debug:            counter/1[6]: 235886786
      debug:            counter/2[6]: 235886786
      debug:               scaled[6]: 0
      debug:            counter/0[7]: 1824
      debug:            counter/1[7]: 235886560
      debug:            counter/2[7]: 235886560
      debug:               scaled[7]: 0
      
       Performance counter stats for '/home/mingo/loop_1b_instructions' (3 runs):
      
           235.913377  task-clock-msecs     #      0.997 CPUs    ( +-   0.011% )
                    2  context-switches     #      0.000 M/sec   ( +-   0.000% )
                    1  CPU-migrations       #      0.000 M/sec   ( +-   0.000% )
                  136  page-faults          #      0.001 M/sec   ( +-   0.730% )
            755048744  cycles               #   3200.534 M/sec   ( +-   0.009% )
           1001417586  instructions         #      1.326 IPC     ( +-   0.001% )
                25277  cache-references     #      0.107 M/sec   ( +-   3.988% )
                 2315  cache-misses         #      0.010 M/sec   ( +-   9.845% )
      
          0.236706075  seconds time elapsed.
      
      This allows the summary stats to be validated.
      
      Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
      Cc: Mike Galbraith <efault@gmx.de>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
      LKML-Reference: <new-submission>
      Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
      ef281a19
    • Ingo Molnar's avatar
      perf stat: Add feature to run and measure a command multiple times · 42202dd5
      Ingo Molnar authored
      Add the --repeat <n> feature to perf stat, which repeats a given
      command up to a 100 times, collects the stats and calculates an
      average and a stddev.
      
      For example, the following oneliner 'perf stat' command runs hackbench
      5 times and prints a tabulated result of all metrics, with averages
      and noise levels (in percentage) printed:
      
       aldebaran:~/linux/linux/tools/perf> ./perf stat --repeat 5 ~/hackbench 10
       Time: 0.117
       Time: 0.108
       Time: 0.089
       Time: 0.088
       Time: 0.100
      
       Performance counter stats for '/home/mingo/hackbench 10' (5 runs):
      
          1243.989586  task-clock-msecs     #     10.460 CPUs    ( +-   4.720% )
                47706  context-switches     #      0.038 M/sec   ( +-  19.706% )
                  387  CPU-migrations       #      0.000 M/sec   ( +-   3.608% )
                17793  page-faults          #      0.014 M/sec   ( +-   0.354% )
           3770941606  cycles               #   3031.329 M/sec   ( +-   4.621% )
           1566372416  instructions         #      0.415 IPC     ( +-   2.703% )
             16783421  cache-references     #     13.492 M/sec   ( +-   5.202% )
              7128590  cache-misses         #      5.730 M/sec   ( +-   7.420% )
      
          0.118924455  seconds time elapsed.
      
      The goal of this feature is to allow the reliance on these accurate
      statistics and to know how many times a command has to be repeated
      for the noise to go down to an acceptable level.
      
      (The -v option can be used to see a line printed out as each run progresses.)
      
      Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
      Cc: Mike Galbraith <efault@gmx.de>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
      LKML-Reference: <new-submission>
      Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
      42202dd5
    • Ingo Molnar's avatar
      perf stat: Reorganize output · 44175b6f
      Ingo Molnar authored
       - use IPC for the instruction normalization output
       - CPUs for the CPU utilization factor value.
       - print out time elapsed like the other rows
       - tidy up the task-clocks/cpu-clocks printout
      
      Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
      Cc: Mike Galbraith <efault@gmx.de>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
      LKML-Reference: <new-submission>
      Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
      44175b6f
    • Jaswinder Singh Rajput's avatar
      perf_counter, x86: Update AMD hw caching related event table · f4db43a3
      Jaswinder Singh Rajput authored
      All AMD models share the same hw caching related event table.
      
      Also complete the table with more events.
      Signed-off-by: default avatarJaswinder Singh Rajput <jaswinderrajput@gmail.com>
      Cc: Robert Richter <robert.richter@amd.com>
      Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
      Cc: Mike Galbraith <efault@gmx.de>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
      LKML-Reference: <1244835381.2802.2.camel@ht.satnam>
      Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
      f4db43a3
    • Jaswinder Singh Rajput's avatar
      perf_counter, x86: Check old-AMD performance monitoring support · 4d2be126
      Jaswinder Singh Rajput authored
      AMD supports performance monitoring start from K7 (i.e. family 6),
      so disable it for earlier AMD CPUs.
      Signed-off-by: default avatarJaswinder Singh Rajput <jaswinderrajput@gmail.com>
      Cc: Robert Richter <robert.richter@amd.com>
      Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
      Cc: Mike Galbraith <efault@gmx.de>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
      LKML-Reference: <1244714289.6923.0.camel@ht.satnam>
      Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
      4d2be126
    • Marti Raudsepp's avatar
      perf_counter: Fix stack corruption in perf_read_hw · d5e8da64
      Marti Raudsepp authored
      With PERF_FORMAT_ID, perf_read_hw now needs space for up to 4 values.
      
      Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
      Cc: Mike Galbraith <efault@gmx.de>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
      LKML-Reference: <new-submission>
      Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
      d5e8da64
    • Paul Mackerras's avatar
      perf_counter: Fix atomic_set vs. atomic64_t type mismatch · 87847b8f
      Paul Mackerras authored
      Using atomic_set on an atomic64_t variable gives a compiler
      warning on powerpc, and won't give the desired result at runtime.
      This fixes an instance of this error in the perf_counter code.
      Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
      Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
      LKML-Reference: <18995.20490.979429.244883@cargo.ozlabs.ibm.com>
      Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
      87847b8f
    • Frederic Weisbecker's avatar
      perf annotate: Print a sorted summary of annotated overhead lines · 971738f3
      Frederic Weisbecker authored
      It's can be very annoying to scroll down perf annotated output
      until we find relevant overhead.
      
      Using the -l option, you can now have a small summary sorted per
      overhead in the beginning of the output.
      
      Example:
      
      ./perf annotate -l -k ../../vmlinux -s __lock_acquire
      
      Sorted summary for file ../../vmlinux
      ----------------------------------------------
      
         12.04 /home/fweisbec/linux/linux-2.6-tip/kernel/lockdep.c:1653
          4.61 /home/fweisbec/linux/linux-2.6-tip/kernel/lockdep.c:1740
          3.77 /home/fweisbec/linux/linux-2.6-tip/kernel/lockdep.c:1775
          3.56 /home/fweisbec/linux/linux-2.6-tip/kernel/lockdep.c:1653
          2.93 /home/fweisbec/linux/linux-2.6-tip/arch/x86/include/asm/irqflags.h:15
          2.83 /home/fweisbec/linux/linux-2.6-tip/kernel/lockdep.c:2545
          2.30 /home/fweisbec/linux/linux-2.6-tip/kernel/lockdep.c:2594
          2.20 /home/fweisbec/linux/linux-2.6-tip/kernel/lockdep.c:2388
          2.20 /home/fweisbec/linux/linux-2.6-tip/kernel/lockdep.c:730
          2.09 /home/fweisbec/linux/linux-2.6-tip/kernel/lockdep.c:730
          2.09 /home/fweisbec/linux/linux-2.6-tip/kernel/lockdep.c:138
          1.88 /home/fweisbec/linux/linux-2.6-tip/kernel/lockdep.c:2548
          1.47 /home/fweisbec/linux/linux-2.6-tip/arch/x86/include/asm/irqflags.h:15
          1.36 /home/fweisbec/linux/linux-2.6-tip/kernel/lockdep.c:2594
          1.36 /home/fweisbec/linux/linux-2.6-tip/kernel/lockdep.c:730
          1.26 /home/fweisbec/linux/linux-2.6-tip/kernel/lockdep.c:1654
          1.26 /home/fweisbec/linux/linux-2.6-tip/kernel/lockdep.c:1653
          1.15 /home/fweisbec/linux/linux-2.6-tip/kernel/lockdep.c:2592
          1.15 /home/fweisbec/linux/linux-2.6-tip/kernel/lockdep.c:1740
          1.15 /home/fweisbec/linux/linux-2.6-tip/kernel/lockdep.c:1740
      
      [...]
      
      Only overhead over 0.5% are summarized.
      Signed-off-by: default avatarFrederic Weisbecker <fweisbec@gmail.com>
      Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
      Cc: Mike Galbraith <efault@gmx.de>
      Cc: Paul Mackerras <paulus@samba.org>
      LKML-Reference: <1244844682-12928-2-git-send-email-fweisbec@gmail.com>
      Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
      971738f3
    • Frederic Weisbecker's avatar
      perf annotate: Print the filename:line for annotated colored lines · 301406b9
      Frederic Weisbecker authored
      When we have a colored line in perf annotate, ie a middle/high
      overhead one, it's sometimes useful to get the matching line
      and filename from the source file, especially this path prepares
      to another subsequent one which will print a sorted summary of
      midle/high overhead lines in the beginning of the output.
      
      Filename:Lines have the same color than the concerned ip lines.
      
      It can be slow because it relies on addr2line. We could also
      use objdump with -l but that implies we would have to bufferize
      objdump output and parse it to filter the relevant lines since
      we want to print a sorted summary in the beginning.
      Signed-off-by: default avatarFrederic Weisbecker <fweisbec@gmail.com>
      Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
      Cc: Mike Galbraith <efault@gmx.de>
      Cc: Paul Mackerras <paulus@samba.org>
      LKML-Reference: <1244844682-12928-1-git-send-email-fweisbec@gmail.com>
      Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
      301406b9
    • Linus Torvalds's avatar
      Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/configfs · f3ad1165
      Linus Torvalds authored
      * 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/configfs:
        configfs: Rework configfs_depend_item() locking and make lockdep happy
        configfs: Silence lockdep on mkdir() and rmdir()
      f3ad1165
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6 · d645727b
      Linus Torvalds authored
      * 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6: (30 commits)
        [S390] wire up sys_perf_counter_open
        [S390] wire up sys_rt_tgsigqueueinfo
        [S390] ftrace: add system call tracer support
        [S390] ftrace: add function graph tracer support
        [S390] ftrace: add function trace mcount test support
        [S390] ftrace: add dynamic ftrace support
        [S390] kprobes: use probe_kernel_write
        [S390] maccess: arch specific probe_kernel_write() implementation
        [S390] maccess: add weak attribute to probe_kernel_write
        [S390] profile_tick called twice
        [S390] dasd: forward internal errors to dasd_sleep_on caller
        [S390] dasd: sync after async probe
        [S390] dasd: check_characteristics cleanup
        [S390] dasd: no High Performance FICON in 31-bit mode
        [S390] dcssblk: revert devt conversion
        [S390] qdio: fix access beyond ARRAY_SIZE of irq_ptr->{in,out}put_qs
        [S390] vmalloc: add vmalloc kernel parameter support
        [S390] uaccess: use might_fault() instead of might_sleep()
        [S390] 3270: lock dependency fixes
        [S390] 3270: do not register with tty_register_device
        ...
      d645727b
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic · cd166bd0
      Linus Torvalds authored
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
        add generic lib/checksum.c
        asm-generic: add a generic uaccess.h
        asm-generic: add generic NOMMU versions of some headers
        asm-generic: add generic atomic.h and io.h
        asm-generic: add legacy I/O header files
        asm-generic: add generic versions of common headers
        asm-generic: make bitops.h usable
        asm-generic: make pci.h usable directly
        asm-generic: make get_rtc_time overridable
        asm-generic: rename page.h and uaccess.h
        asm-generic: rename atomic.h to atomic-long.h
        asm-generic: add a generic unistd.h
        asm-generic: add generic ABI headers
        asm-generic: add generic sysv ipc headers
        asm-generic: introduce asm/bitsperlong.h
        asm-generic: rename termios.h, signal.h and mman.h
      cd166bd0
    • Linus Torvalds's avatar
      Merge branch 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6 · 6b702462
      Linus Torvalds authored
      * 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (50 commits)
        drm: include kernel list header file in hashtab header
        drm: Export hash table functionality.
        drm: Split out the mm declarations in a separate header. Add atomic operations.
        drm/radeon: add support for RV790.
        drm/radeon: add rv740 drm support.
        drm_calloc_large: check right size, check integer overflow, use GFP_ZERO
        drm: Eliminate magic I2C frobbing when reading EDID
        drm/i915: duplicate desired mode for use by fbcon.
        drm/via: vfree() no need checking before calling it
        drm: Replace DRM_DEBUG with DRM_DEBUG_DRIVER in i915 driver
        drm: Replace DRM_DEBUG with DRM_DEBUG_MODE in drm_mode
        drm/i915: Replace DRM_DEBUG with DRM_DEBUG_KMS in intel_sdvo
        drm/i915: replace DRM_DEBUG with DRM_DEBUG_KMS in intel_lvds
        drm: add separate drm debugging levels
        radeon: remove _DRM_DRIVER from the preadded sarea map
        drm: don't associate _DRM_DRIVER maps with a master
        drm: simplify kcalloc() call to kzalloc().
        intelfb: fix spelling of "CLOCK"
        drm: fix LOCK_TEST_WITH_RETURN macro
        drm/i915: Hook connector to encoder during load detection (fixes tv/vga detect)
        ...
      6b702462
  4. 12 Jun, 2009 21 commits