summaryrefslogtreecommitdiffstats
Commit message (Collapse)AuthorAgeFilesLines
* s390: do not clobber personality flags in sys_32_personality()Jiri Kosina2012-08-081-4/+5
| | | | | | | | | | | | | | | | | | | | There are multiple errors in how sys_32_personality() handles personality flags stored in top three bytes. - directly comparing current->personality against PER_LINUX32 doesn't work in cases when any of the personality flags stored in the top three bytes are used. - directly forcefully setting personality to PER_LINUX32 or PER_LINUX discards any flags stored in the top three bytes Fix the first one by properly using personality() macro to compare only PER_MASK bytes. Fix the second one by setting only the bits that should be set, instead of overwriting the whole value. Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* s390/seccomp: add support for system call filtering using BPFHeiko Carstens2012-08-083-1/+17
| | | | | Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* s390/sclp_sdias: Add missing break and "fall through"Michael Holzheu2012-08-081-0/+2
| | | | | | | | | | | | | If the last block of the HSA is read, EVSTATE_ALL_STORED is returned by SCLP. Because of a missing break in the switch statement two trace entries are written in this case: "all stored" and "part stored". This patch adds the missing break and also adds a "fall through" comment to improve the readability. Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com> Reported-by: David A Gilbert <DavidAGilbert@uk.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* s390/mm: remove MAX_PHYSADDR_BITS defineHeiko Carstens2012-08-081-2/+0Star
| | | | | | | It's unused, so remove it. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* Merge branches 'timers-urgent-for-linus' and 'perf-urgent-for-linus' of ↵Linus Torvalds2012-08-0524-187/+498
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull timers and perf fixes from Ingo Molnar: "Timers: - Fix another timekeeping bug Pef: - Make clean brace expansion fix for some shells, from Palmer Cox - Warn user just once per guest kernel when not finding kernel info, from David Ahern - perf test fix from Jiri Olsa - Fix error handling on event creation in perf top, from David Ahern - Fix check on perf_target__strnerror, from Namhyung Kim - Save the whole cmdline, from David Ahern There's this infrastructure change: - Prep work for the DWARF CFI post unwinder, so that it doesn't use perf_session in lots of places, just evlist/evsel is enough. which is a late infrastructure change that prepare for future feature work - we wanted it upstream to simplify the fixes/development patch flows." * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: time: Fix adjustment cleanup bug in timekeeping_adjust() * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf tools: Remove brace expansion from clean target perf kvm top: Limit guest kernel info message to once perf tools: Introduce intlist perf tools: Change strlist to use the new rblist perf tools: Introducing rblist perf kvm: Use strtol for walking guestmount directory perf tool: Save cmdline from user in file header vs what is passed to record perf top: Error handling for counter creation should parallel perf-record perf session: Remove no longer used synthesize_sample method perf evsel: Adopt parse_sample method from perf_event perf evlist: Introduce perf_evlist__parse_sample perf session: Use perf_evlist__id_hdr_size more extensively perf session: Use perf_evlist__sample_id_all more extensively perf session: Use perf_evlist__sample_type more extensively perf evsel: Precalculate the sample size perf target: Fix check on buffer size perf symbols: Fix array sizes for binary types arrays perf test: Fix parse events automated tests
| * Merge tag 'perf-core-for-mingo' of ↵Ingo Molnar2012-08-0524-187/+498
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent Pull perf/core fixes and some late updates from Arnaldo Carvalho de Melo: * Make clean brace expansion fix for some shells, from Palmer Cox * Warn user just once per guest kernel when not finding kernel info, from David Ahern * perf test fix from Jiri Olsa * Fix error handling on event creation in perf top, from David Ahern * Fix check on perf_target__strnerror, from Namhyung Kim * Save the whole cmdline, from David Ahern * Prep work for the DWARF CFI post unwinder, so that it doesn't uses perf_session in lots of places, just evlist/evsel is enough. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Ingo Molnar <mingo@kernel.org>
| | * perf tools: Remove brace expansion from clean targetPalmer Cox2012-08-031-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The clean target uses brace expansion to remove some generated files. However, the default shells on many systems do not support this feature resulting in some generated files not being removed by clean. Signed-off-by: Palmer Cox <p@lmercox.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1343598883-17907-1-git-send-email-p@lmercox.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| | * perf kvm top: Limit guest kernel info message to onceDavid Ahern2012-08-031-2/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 'perf kvm top' shows a continual flurry of: Can't find guest [5201]'s kernel information if it can't find the guest info and with a lot of VMs running a user has no chance of reading them all. Limit message to once per guest. Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1343709095-7089-5-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| | * perf tools: Introduce intlistDavid Ahern2012-08-033-0/+178
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Built on rblist - like strlist. Used in the next patch. Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1343709095-7089-4-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| | * perf tools: Change strlist to use the new rblistDavid Ahern2012-08-032-84/+57Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Replaces the direct use of rbtree code with the rblist API. In the end the patch is a no-op on strlist functionality; the API for strlist is not changed, only its implementaton. Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1343709095-7089-3-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| | * perf tools: Introducing rblistDavid Ahern2012-08-033-0/+156
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | rblist is the rbtree based code from strlist. It will be the common code for strlist and the to-be-introduced intlist. Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1343709095-7089-2-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| | * perf kvm: Use strtol for walking guestmount directoryDavid Ahern2012-08-031-1/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Only want to process directories under the guestmnount directory that have a pid as a name (ie, all digits). Other entries in the guestmount directory should be ignored. There is already a check that requires the first character of each entry to be a digit, but atoi is used to convert the directory name to a pid. For example if guestmount contains a directory with the name 1foo, atoi converts it to a pid of 1 and a machine is created with a pid of 1. This is wrong; this directory really should be ignored. Use strtol to do that. Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1343616875-6455-1-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| | * perf tool: Save cmdline from user in file header vs what is passed to recordDavid Ahern2012-08-033-2/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A number of builtin commands process some user args and then pass the rest to cmd_record. cmd_record then saves argc/argv that it receives into the header of the perf data file. But this loses the arguments handled by the first command -- ie., the real command line from the user. This patch saves the command line as typed by the user rather than what was passed to cmd_record. As an example consider the command: $ perf kvm --guest --host --guestmount=/tmp/guest-mount record -fo /tmp/perf.data -ag -- sleep 10 Currently the command saved to the header is: cmdline : /tmp/p3.5/perf record -o perf.data.kvm -fo /tmp/perf.data -ag -- sleep 1 (ignore the duplicated -o -- the first would be yet another bug with perf-kvm). With this patch the command line saved to the header is: cmdline : /tmp/p3.5/perf kvm --guest --host --guestmount=/tmp/guest-mount record -fo /tmp/perf.data -ag -- sleep 1 v2: simplified to saving the command in parse_options per Stephane's suggestion Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1343616831-6408-1-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| | * perf top: Error handling for counter creation should parallel perf-recordDavid Ahern2012-08-031-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 5a7ed29 fixed up perf-record but not perf-top. Similar argument holds for it -- fallback to PMU only if it does not exist and handle invalid attributes separately. Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Robert Richter <robert.richter@amd.com> Link: http://lkml.kernel.org/r/1343616783-6360-1-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| | * perf session: Remove no longer used synthesize_sample methodArnaldo Carvalho de Melo2012-08-032-12/+0Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-jd8tqbx8o8bs4t4g50vyhoc2@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| | * perf evsel: Adopt parse_sample method from perf_eventArnaldo Carvalho de Melo2012-08-025-15/+11Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since we need evsel->{attr.{sample_{id_all,type}},sample_size}, reducing the number of parameters tools have to pass. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-wdtmgak0ihgsmw1brb54a8h4@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| | * perf evlist: Introduce perf_evlist__parse_sampleArnaldo Carvalho de Melo2012-08-027-31/+21Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | That is a more compact form of perf_session__parse_sample and to support multiple evlists per perf_session is the way to go anyway. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-vkxx3j5qktoj11bvcwmfjj13@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| | * perf session: Use perf_evlist__id_hdr_size more extensivelyArnaldo Carvalho de Melo2012-08-024-10/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Removing perf_session->id_hdr_size, as it can be obtained from the evsel/evlist. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1nwc2kslu7gsfblu98xbqbll@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| | * perf session: Use perf_evlist__sample_id_all more extensivelyArnaldo Carvalho de Melo2012-08-022-6/+4Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Removing perf_session->sample_id_all, as it can be obtained from the evsel/evlist. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ok58u1mlc5ci9b6p36r52uh1@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| | * perf session: Use perf_evlist__sample_type more extensivelyArnaldo Carvalho de Melo2012-08-024-27/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Removing perf_session->sample_type, as it can be obtained from the evsel/evlist. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-mnt1zwlik7sp7z6ljc9kyefg@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| | * perf evsel: Precalculate the sample sizeArnaldo Carvalho de Melo2012-08-016-25/+24Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | So that we don't have to store it in the perf_session instance, because in the future perf_session instances may have multiple evlists, each with different sample_type/sizes. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ptod86fxkpgq3h62m9refkv4@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| | * perf target: Fix check on buffer sizeNamhyung Kim2012-08-011-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It was a mistake just replace assert to BUG_ON since its condition should be negated. Fix it. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: "Kirill A. Shutemov" <kirill@shutemov.name> Cc: Ingo Molnar <mingo@kernel.org> Cc: Kirill A. Shutemov <kirill@shutemov.name> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Ulrich Drepper <drepper@gmail.com> Link: http://lkml.kernel.org/r/1343267410-7758-1-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| | * perf symbols: Fix array sizes for binary types arraysJiri Olsa2012-08-011-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Following commit introduced wrong array boundaries, that could lead to SIGSEGV. perf symbols: Factor DSO symtab types to generic binary types commit 44f24cb3156a1e7d2b6bb501b7f6153aed08994c Author: Jiri Olsa <jolsa@redhat.com> Fixing to use proper array size. Reported-by: Markus Trippelsdorf <markus@trippelsdorf.de> Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Markus Trippelsdorf <markus@trippelsdorf.de> Link: http://lkml.kernel.org/r/1343825277-10517-1-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| | * perf test: Fix parse events automated testsJiri Olsa2012-08-011-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Parse events tests got broken after following commit: perf tools: Fix trace events storms due to weight demux commit 0983cc0dbca45250cbb5984bec7c303ac265b8e5 Author: Frederic Weisbecker <fweisbec@gmail.com> that added PERF_SAMPLE_PERIOD sample type for tracepoints. Updating related tests. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1343825338-10618-1-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* | | time: Fix adjustment cleanup bug in timekeeping_adjust()Ingo Molnar2012-08-051-14/+17
|/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Tetsuo Handa reported that sporadically the system clock starts counting up too quickly which is enough to confuse the hangcheck timer to print a bogus stall warning. Commit 2a8c0883 "time: Move xtime_nsec adjustment underflow handling timekeeping_adjust" overlooked this exit path: } else return; which should really be a proper exit sequence, fixing the bug as a side effect. Also make the flow more readable by properly balancing curly braces. Reported-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> wrote: Tested-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> wrote: Signed-off-by: Ingo Molnar <mingo@kernel.org> Cc: john.stultz@linaro.org Cc: a.p.zijlstra@chello.nl Cc: richardcochran@gmail.com Cc: prarit@redhat.com Link: http://lkml.kernel.org/r/20120804192114.GA28347@gmail.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
* | Merge branch 'for-linus-2' of ↵Linus Torvalds2012-08-0431-194/+38Star
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull VFS fixes and cleanups from Al Viro. Most of this is the series to remove sync_supers() and the ->write_supers VFS callback from Artem Bityutskiy. One commit to do the actual removal work, a whole series of commits to fix up stale comments etc all over the tree. There's also a regression fix for an incorrect use of mnt_drop_write() in do_dentry_open(). * 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: missed mnt_drop_write() in do_dentry_open() UBIFS: nuke pdflush from comments gfs2: nuke pdflush from comments drbd: nuke pdflush from comments nilfs2: nuke write_super from comments hfs: nuke write_super from comments vfs: nuke pdflush from comments jbd/jbd2: nuke write_super from comments btrfs: nuke pdflush from comments btrfs: nuke write_super from comments ext4: nuke pdflush from comments ext4: nuke write_super from comments ext3: nuke write_super from comments Documentation: fix the VM knobs descritpion WRT pdflush Documentation: get rid of write_super vfs: kill write_super and sync_supers
| * | missed mnt_drop_write() in do_dentry_open()Al Viro2012-08-041-1/+1
| | | | | | | | | | | | | | | | | | | | | This one ought to be __mnt_drop_write(), to match __mnt_want_write() in the beginning... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | UBIFS: nuke pdflush from commentsArtem Bityutskiy2012-08-042-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | The pdflush thread is long gone, so this patch removes references to pdflush from UBIFS comments. Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | gfs2: nuke pdflush from commentsArtem Bityutskiy2012-08-041-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | The pdflush thread is long gone, so this patch removes references to pdflush from gfs comments. Cc: Steven Whitehouse <swhiteho@redhat.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | drbd: nuke pdflush from commentsArtem Bityutskiy2012-08-041-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | The pdflush thread is long gone, so this patch removes references to pdflush from drbd comments. Cc: drbd-dev@lists.linbit.com Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | nilfs2: nuke write_super from commentsArtem Bityutskiy2012-08-042-6/+0Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | The '->write_super' superblock method is gone, and this patch removes all the references to 'write_super' from ntfs. Cc: KONISHI Ryusuke <konishi.ryusuke@lab.ntt.co.jp> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | hfs: nuke write_super from commentsArtem Bityutskiy2012-08-041-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | The '->write_super' superblock method is gone, and this patch removes all the references to 'write_super' from hfs. Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | vfs: nuke pdflush from commentsArtem Bityutskiy2012-08-042-2/+1Star
| | | | | | | | | | | | | | | | | | | | | | | | The pdflush thread is long gone, so this patch removes references to pdflush from vfs comments. Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | jbd/jbd2: nuke write_super from commentsArtem Bityutskiy2012-08-042-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The '->write_super' superblock method is gone, and this patch removes all the references to 'write_super' from various jbd and jbd2. Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Jan Kara <jack@suse.cz> Cc: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | btrfs: nuke pdflush from commentsArtem Bityutskiy2012-08-042-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The pdflush thread is long gone, so this patch removes references to pdflush from btrfs comments. Cc: Chris Mason <chris.mason@fusionio.com> Cc: linux-btrfs@vger.kernel.org Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | btrfs: nuke write_super from commentsArtem Bityutskiy2012-08-042-8/+0Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The '->write_super' superblock method is gone, and this patch removes all the references to 'write_super' from btrfs. Cc: Chris Mason <chris.mason@fusionio.com> Cc: linux-btrfs@vger.kernel.org Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | ext4: nuke pdflush from commentsArtem Bityutskiy2012-08-041-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The pdflush thread is long gone, so this patch removes references to pdflush from ext4 comments. Cc: "Theodore Ts'o" <tytso@mit.edu> Cc: Andreas Dilger <adilger.kernel@dilger.ca> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | ext4: nuke write_super from commentsArtem Bityutskiy2012-08-042-19/+0Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The '->write_super' superblock method is gone, and this patch removes all the references to 'write_super' from ext3. Cc: "Theodore Ts'o" <tytso@mit.edu> Cc: Andreas Dilger <adilger.kernel@dilger.ca> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | ext3: nuke write_super from commentsArtem Bityutskiy2012-08-042-19/+0Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The '->write_super' superblock method is gone, and this patch removes all the references to 'write_super' from ext3. Cc: Jan Kara <jack@suse.cz> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andreas Dilger <adilger.kernel@dilger.ca> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | Documentation: fix the VM knobs descritpion WRT pdflushArtem Bityutskiy2012-08-042-13/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | The pdflush thread is long gone, however we still mention it incorrectly in the kernel documentation. This patch fixes the situation. Cc: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | Documentation: get rid of write_superArtem Bityutskiy2012-08-034-11/+4Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | The '->write_super' superblock method is gone, and this patch removes all the references to 'write_super' from various pieces of the kernel documentation. Cc: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | vfs: kill write_super and sync_supersArtem Bityutskiy2012-08-035-97/+0Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Finally we can kill the 'sync_supers' kernel thread along with the '->write_super()' superblock operation because all the users are gone. Now every file-system is supposed to self-manage own superblock and its dirty state. The nice thing about killing this thread is that it improves power management. Indeed, 'sync_supers' is a source of monotonic system wake-ups - it woke up every 5 seconds no matter what - even if there were no dirty superblocks and even if there were no file-systems using this service (e.g., btrfs and journalled ext4 do not need it). So it was wasting power most of the time. And because the thread was in the core of the kernel, all systems had to have it. So I am quite happy to make it go away. Interestingly, this thread is a left-over from the pdflush kernel thread which was a self-forking kernel thread responsible for all the write-back in old Linux kernels. It was turned into per-block device BDI threads, and 'sync_supers' was a left-over. Thus, R.I.P, pdflush as well. Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | | Merge branch 'release' of ↵Linus Torvalds2012-08-0318-146/+73Star
|\ \ \ | |/ / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux Pull ACPI and power management fixes from Len Brown: "A 3.3 sleep regression fixed, numa bugfix, plus some minor cleanups" * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux: ACPI processor: Fix tick_broadcast_mask online/offline regression ACPI: Only count valid srat memory structures ACPI: Untangle a return statement for better readability ACPI / PCI: Do not try to acquire _OSC control if that is hopeless ACPI: delete _GTS/_BFS support ACPI/x86: revert 'x86, acpi: Call acpi_enter_sleep_state via an asmlinkage C function from assembler' ACPI: replace strlen("string") with sizeof("string") -1 ACPI / PM: Fix build warning in sleep.c for CONFIG_ACPI_SLEEP unset
| | |
| | \
| | \
| | \
| *---. \ Merge branches 'delete-gts-bfs', 'misc', 'novell-bugzilla-757888-numa' and ↵Len Brown2012-08-037366-189610/+452431
| |\ \ \ \ | | | | | | | | | | | | | | | | | | 'osc-pcie' into base
| | | | * | ACPI / PCI: Do not try to acquire _OSC control if that is hopelessRafael J. Wysocki2012-07-311-2/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If acpi_pci_osc_support() fails for the given flags, it doesn't make sense to call acpi_pci_osc_control_set() down the road for the same flags, because it will certainly fail too. Moreover, problem diagnostics is then harder, because it is not too easy to identify the reason of the _OSC failure in those cases. For this reason, check the status returned by acpi_pci_osc_support() for PCIe support flags and do not attempt to execute acpi_pci_osc_control_set() for those flags and print a message if it's "failure". For compatibility with the existing code, disable ASPM in that case too. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Len Brown <len.brown@intel.com>
| | | * | | ACPI: Only count valid srat memory structuresThomas Renninger2012-08-034-13/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Otherwise you could run into: WARN_ON in numa_register_memblks(), because node_possible_map is zero References: https://bugzilla.novell.com/show_bug.cgi?id=757888 On this machine (ProLiant ML570 G3) the SRAT table contains: - No processor affinities - One memory affinity structure (which is set disabled) CC: Per Jessen <per@opensuse.org> CC: Andi Kleen <andi@firstfloor.org> Signed-off-by: Thomas Renninger <trenn@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
| | | * | | ACPI: Untangle a return statement for better readabilityThomas Renninger2012-08-031-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | No functional change. Signed-off-by: Thomas Renninger <trenn@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
| | * | | | ACPI processor: Fix tick_broadcast_mask online/offline regressionFeng Tang2012-08-031-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In commit 99b725084 "ACPI processor hotplug: Delay acpi_processor_start() call for hotplugged cores", acpi_processor_hotplug(pr) was wrongly replaced by acpi_processor_cst_has_changed() inside the acpi_cpu_soft_notify(). This patch will restore it back, fixing the tick_broadcast_mask regression: https://lkml.org/lkml/2012/7/30/169 Signed-off-by: Feng Tang <feng.tang@intel.com> Cc: Thomas Renninger <trenn@suse.de> Cc: <stable@vger.kernel.org> # 3.3+ Reviewed-by: Rafael J. Wysocki <rjw@sisk.pl> Reviewed-by: Deepthi Dharwar <deepthi@linux.vnet.ibm.com> Signed-off-by: Len Brown <len.brown@intel.com>
| | * | | | ACPI: replace strlen("string") with sizeof("string") -1Len Brown2012-07-271-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ...both give the number of chars in the string without the '\0', as strncmp() wants, but sizeof() is compile-time. Reported-by: Alan Stern <stern@rowland.harvard.edu> Cc: Pavel Vasilyev <pavel@pavlinux.ru> Signed-off-by: Len Brown <len.brown@intel.com>
| | * | | | ACPI / PM: Fix build warning in sleep.c for CONFIG_ACPI_SLEEP unsetRafael J. Wysocki2012-07-271-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If CONFIG_ACPI_SLEEP is unset, the compiler complains that pwr_btn_event_pending is defined but not used. To silence the warning, move the definition of pwr_btn_event_pending under an appropriate #ifdef. Reported-by: Paul E. McKenney <paul.mckenney@linaro.org> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Tested-by: Paul E. McKenney <paul.mckenney@linaro.org> Signed-off-by: Len Brown <len.brown@intel.com>
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2024-07-06 01:59:57 +0200