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2015-04-02selftest/memfd: include default header install pathTyler Baker
Include the default path for INSTALL_HDR_PATH to make it less intrusive when cross building. Signed-off-by: Tyler Baker <tyler.baker@linaro.org> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2015-04-02selftest/mount: enable cross compilationTyler Baker
Use the CC variable instead of hard coding gcc. Also clean up the compiler options by creating a CFLAGS variable. Signed-off-by: Tyler Baker <tyler.baker@linaro.org> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2015-04-02selftest/memfd: enable cross compilationTyler Baker
Use the CC variable instead of hard coding gcc. Also clean up the compiler options by creating a CFLAGS variable. Signed-off-by: Tyler Baker <tyler.baker@linaro.org> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2015-04-02kselftests: timers: Make set-timer-lat fail more gracefully for !CAP_WAKE_ALARMJohn Stultz
The set-timer-lat test fails when testing CLOCK_BOOTTIME_ALARM or CLOCK_REALTIME_ALARM when the user isn't running as root or with CAP_WAKE_ALARM. So this patch improves the error checking so we report the issue more clearly and continue rather then reporting a failure. Cc: Shuah Khan <shuahkh@osg.samsung.com> Cc: Prarit Bhargava <prarit@redhat.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Richard Cochran <richardcochran@gmail.com> Signed-off-by: John Stultz <john.stultz@linaro.org> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2015-04-02perf data: Support using -f to override perf.data file ownership for 'convert'Yunlong Song
Enable perf data convert to use perf.data when it is not owned by current user or root. Example: # perf record ls # chown Yunlong.Song:Yunlong.Song perf.data # ls -al perf.data -rw------- 1 Yunlong.Song Yunlong.Song 28260 Apr 2 17:35 perf.data # id uid=0(root) gid=0(root) groups=0(root),64(pkcs11) Before this patch: # perf data convert --to-ctf=./ctf-data/ File perf.data not owned by current user or root (use -f to override) # perf data convert --to-ctf=./ctf-data/ -f Error: unknown switch `f' usage: perf data convert [<options>] -v, --verbose be more verbose -i, --input <file> input file name --to-ctf ... Convert to CTF format After this patch: # perf data convert --to-ctf=./ctf-data/ File perf.data not owned by current user or root (use -f to override) # perf data convert --to-ctf=./ctf-data/ -f # ls ctf-data/ metadata perf_stream_0 As shown above, the -f option really works now. Signed-off-by: Yunlong Song <yunlong.song@huawei.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/1427982439-27388-11-git-send-email-yunlong.song@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-04-02perf trace: Support using -f to override perf.data file ownershipYunlong Song
Enable perf trace to use perf.data when it is not owned by current user or root. Example: # perf trace record ls # chown Yunlong.Song:Yunlong.Song perf.data # ls -al perf.data -rw------- 1 Yunlong.Song Yunlong.Song 4153101 Apr 2 15:28 perf.data # id uid=0(root) gid=0(root) groups=0(root),64(pkcs11) Before this patch: # perf trace -i perf.data File perf.data not owned by current user or root (use -f to override) # perf trace -i perf.data -f Error: unknown switch `f' usage: perf trace [<options>] [<command>] or: perf trace [<options>] -- <command> [<options>] or: perf trace record [<options>] [<command>] or: perf trace record [<options>] -- <command> [<options>] --event <event> event selector. use 'perf list' to list available events --comm show the thread COMM next to its id --tool_stats show tool stats -e, --expr <expr> list of events to trace -o, --output <file> output file name -i, --input <file> Analyze events in file -p, --pid <pid> trace events on existing process id -t, --tid <tid> trace events on existing thread id --filter-pids <float> ... As shown above, the -f option does not work at all. After this patch: # perf trace -i perf.data File perf.data not owned by current user or root (use -f to override) # perf trace -i perf.data -f 0.056 ( 0.002 ms): ls/47325 brk( ... 0.108 ( 0.018 ms): ls/47325 mmap(len: 4096, prot: READ|WRITE, ... 0.145 ( 0.013 ms): ls/47325 access(filename: 0x7f31259a0eb0, ... 0.172 ( 0.008 ms): ls/47325 open(filename: 0x7fffeb9a0d00, ... 0.180 ( 0.004 ms): ls/47325 stat(filename: 0x7fffeb9a0d00, ... 0.185 ( 0.004 ms): ls/47325 open(filename: 0x7fffeb9a0d00, ... 0.189 ( 0.003 ms): ls/47325 stat(filename: 0x7fffeb9a0d00, ... 0.195 ( 0.004 ms): ls/47325 open(filename: 0x7fffeb9a0d00, ... 0.199 ( 0.002 ms): ls/47325 stat(filename: 0x7fffeb9a0d00, ... 0.205 ( 0.004 ms): ls/47325 open(filename: 0x7fffeb9a0d00, ... 0.211 ( 0.004 ms): ls/47325 stat(filename: 0x7fffeb9a0d00, ... 0.220 ( 0.007 ms): ls/47325 open(filename: 0x7f312599e8ff, ... ... ... As shown above, the -f option really works now. Signed-off-by: Yunlong Song <yunlong.song@huawei.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/1427982439-27388-10-git-send-email-yunlong.song@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-04-02perf timechart: Support using -f to override perf.data file ownershipYunlong Song
Enable perf timechart to use perf.data when it is not owned by current user or root. Example: # perf timechart record ls # chown Yunlong.Song:Yunlong.Song perf.data # ls -al perf.data -rw------- 1 Yunlong.Song Yunlong.Song 5471744 Apr 2 15:15 perf.data # id uid=0(root) gid=0(root) groups=0(root),64(pkcs11) Before this patch: # perf timechart File perf.data not owned by current user or root (use -f to override) # perf timechart -f Error: unknown switch `f' usage: perf timechart [<options>] {record} -i, --input <file> input file name -o, --output <file> output file name -w, --width <n> page width --highlight <duration or task name> highlight tasks. Pass duration in ns or process name. -P, --power-only output power data only -T, --tasks-only output processes data only -p, --process <process> process selector. Pass a pid or process name. --symfs <directory> Look for files with symbols relative to this directory -n, --proc-num <n> min. number of tasks to print -t, --topology sort CPUs according to topology --io-skip-eagain skip EAGAIN errors --io-min-time <time> all IO faster than min-time will visually appear longer --io-merge-dist <time> merge events that are merge-dist us apart As shown above, the -f option does not work at all. After this patch: # perf timechart File perf.data not owned by current user or root (use -f to override) # perf timechart -f Written 0.0 seconds of trace to output.svg. # cat output.svg <?xml version="1.0" standalone="no"?> <!DOCTYPE svg SYSTEM "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd"> <svg width="1000" height="10110" version="1.1" xmlns="http://www.w3.org/2000/svg"> <defs> <style type="text/css"> <![CDATA[ rect { stroke-width: 1; } ... ... As shown above, the -f option really works now. Signed-off-by: Yunlong Song <yunlong.song@huawei.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/1427982439-27388-9-git-send-email-yunlong.song@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-04-02perf script: Support using -f to override perf.data file ownershipYunlong Song
Enable perf script to use perf.data when it is not owned by current user or root. Change the short option name of --fields to -F to avoid confusion with --force. Example: # perf record ls # chown Yunlong.Song:Yunlong.Song perf.data # ls -al perf.data -rw------- 1 Yunlong.Song Yunlong.Song 28360 Apr 2 14:53 perf.data # id uid=0(root) gid=0(root) groups=0(root),64(pkcs11) Before this patch: # perf script File perf.data not owned by current user or root (use -f to override) # perf script -f Error: switch `f' requires a value usage: perf script [<options>] or: perf script [<options>] record <script> [<record-options>] <command> or: perf script [<options>] report <script> [script-args] or: perf script [<options>] <script> [<record-options>] <command> or: perf script [<options>] <top-script> [script-args] -f, --fields <str> comma separated output fields prepend with 'type:'. Valid types: hw,sw,trace,raw. Fields: comm,tid,pid,time,cpu,event,trace,ip,sym,dso,addr,symoff,period As shown above, the -f option does not work at all. And -f is already taken up by --fields, which makes --force confused, so change the short option name of --fields to -F like what other perf commands do (e.g. perf report -F) and use -f as the short option name of --force. After this patch: # perf script File perf.data not owned by current user or root (use -f to override) # perf script -f :41298 41298 2590086.564226: 1 cycles: ffffffff8103efc6 native_write_msr_safe ([kernel.kallsyms]) :41298 41298 2590086.564244: 1 cycles: ffffffff8103efc6 native_write_msr_safe ([kernel.kallsyms]) :41298 41298 2590086.564249: 7 cycles: ffffffff8103efc6 native_write_msr_safe ([kernel.kallsyms]) :41298 41298 2590086.564255: 176 cycles: ffffffff8103efc6 native_write_msr_safe ([kernel.kallsyms]) ls 41298 2590086.567346: 4059 cycles: ffffffff8105a592 raise_softirq ([kernel.kallsyms]) ls 41298 2590086.567353: 3717 cycles: ffffffff8105a592 raise_softirq ([kernel.kallsyms]) ls 41298 2590086.567358: 63058 cycles: ffffffff8105a592 raise_softirq ([kernel.kallsyms]) ls 41298 2590086.567448: 1706255 cycles: 406ae0 [unknown] (/usr/bin/ls) As shown above, the -f option really works now. Signed-off-by: Yunlong Song <yunlong.song@huawei.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/1427982439-27388-8-git-send-email-yunlong.song@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-04-02perf mem: Support using -f to override perf.data file ownershipYunlong Song
Enable perf mem to use perf.data when it is not owned by current user or root. Example: # perf mem -t load record ls # chown Yunlong.Song:Yunlong.Song perf.data # ls -al perf.data -rw------- 1 Yunlong.Song Yunlong.Song 16392 Apr 2 14:34 perf.data # id uid=0(root) gid=0(root) groups=0(root),64(pkcs11) Before this patch: # perf mem -D report File perf.data not owned by current user or root (use -f to override) # perf mem -D -f report Error: unknown switch `f' usage: perf mem [<options>] {record|report} -t, --type <type> memory operations(load,store) Default load,store -D, --dump-raw-samples dump raw samples in ASCII -U, --hide-unresolved Only display entries resolved to a symbol -i, --input <file> input file name -C, --cpu <cpu> list of cpus to profile -x, --field-separator <separator> separator for columns, no spaces will be added between columns '.' is reserved. As shown above, the -f option does not work at all. After this patch: # perf mem -D report File perf.data not owned by current user or root (use -f to override) # perf mem -D -f report # PID, TID, IP, ADDR, LOCAL WEIGHT, DSRC, SYMBOL 39095 39095 0xffffffff81127e40 0x016ffff887f45148338 8 0x68100142 /proc/kcore:perf_event_aux 39095 39095 0xffffffff8100a3fe 0xffff89007f8cb7d0 6 0x68100142 /proc/kcore:native_sched_clock 39095 39095 0xffffffff81309139 0xffff88bf44c9ded8 6 0x68100142 /proc/kcore:acpi_map_lookup 39095 39095 0xffffffff810f8c4c 0xffff89007f8ccd88 6 0x68100142 /proc/kcore:rcu_nmi_exit 39095 39095 0xffffffff81136346 0xffff88fea995dd50 6 0x68100142 /proc/kcore:unlock_page 39095 39095 0xffffffff812a64a2 0xffff88fea995dcc8 6 0x68100142 /proc/kcore:half_md4_transform 39095 39095 0x7f0cf877c7e9 0x25dfb94 6 0x68100142 /lib64/libc-2.19.so:__readdir64 39095 39095 0x7f0cf87575a3 0x7f0cf9163731 6 0x68100142 /lib64/libc-2.19.so:__strcoll_l 39095 39095 0xffffffff8116910e 0xffffea01c1bfbd50 23 0x68100242 /proc/kcore:page_remove_rmap As shown above, the -f option really works now. Signed-off-by: Yunlong Song <yunlong.song@huawei.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/1427982439-27388-7-git-send-email-yunlong.song@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-04-02perf lock: Support using -f to override perf.data file ownershipYunlong Song
Enable perf lock to use perf.data when it is not owned by current user or root. Example: # perf lock record ls # chown Yunlong.Song:Yunlong.Song perf.data # ls -al perf.data -rw------- 1 Yunlong.Song Yunlong.Song 4880686 Apr 2 14:14 perf.data # id uid=0(root) gid=0(root) groups=0(root),64(pkcs11) Before this patch: # perf lock report File perf.data not owned by current user or root (use -f to override) Initializing perf session failed # perf lock report -f Error: unknown switch `f' usage: perf lock report [<options>] -k, --key <acquired> key for sorting (acquired / contended / avg_wait / wait_total / wait_max / wait_min) As shown above, the -f option does not work at all. After this patch: # perf lock report File perf.data not owned by current user or root (use -f to override) Initializing perf session failed # perf lock report -f Name acquired contended avg wait (ns) total wait (ns) ... &ldata->output_l... 128 0 0 0 ... &ctx->lock 114 0 0 0 ... &p->pi_lock 112 0 0 0 ... &(&pool->lock)->... 112 0 0 0 ... &(&dentry->d_loc... 70 0 0 0 ... &(&newf->file_lo... 62 0 0 0 ... &(&fs->lock)->rl... 43 0 0 0 ... ... As shown above, the -f option really works now. Signed-off-by: Yunlong Song <yunlong.song@huawei.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/1427982439-27388-6-git-send-email-yunlong.song@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-04-02perf kvm: Support using -f to override perf.data.guest file ownershipYunlong Song
Enable perf kvm to use perf.data.guest when it is not owned by current user or root. Example: # perf kvm stat record ls # chown Yunlong.Song:Yunlong.Song perf.data.guest # ls -al perf.data.guest -rw------- 1 Yunlong.Song Yunlong.Song 4128937 Apr 2 11:05 perf.data.guest # id uid=0(root) gid=0(root) groups=0(root),64(pkcs11) Before this patch: # perf kvm stat report File perf.data.guest not owned by current user or root (use -f to override) Initializing perf session failed # perf kvm stat report -f Error: unknown switch `f' usage: perf kvm stat report [<options>] --event <report event> event for reporting: vmexit, mmio (x86 only), ioport (x86 only) --vcpu <n> vcpu id to report -k, --key <sort-key> key for sorting: sample(sort by samples number) time (sort by avg time) -p, --pid <pid> analyze events only for given process id(s) As shown above, the -f option does not work at all. After this patch: # perf kvm stat report File perf.data.guest not owned by current user or root (use -f to override) Initializing perf session failed # perf kvm stat report -f Analyze events for all VMs, all VCPUs: VM-EXIT Samples Samples% Time% Min Time Max Time Avg time Total Samples:0, Total events handled time:0.00us. As shown above, the -f option really works now. Since we have not launched any KVM related process, the result shows 0 sample here. Signed-off-by: Yunlong Song <yunlong.song@huawei.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/1427982439-27388-5-git-send-email-yunlong.song@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-04-02perf kmem: Support using -f to override perf.data file ownershipYunlong Song
Enable perf kmem to use perf.data when it is not owned by current user or root. Example: # perf kmem record ls # chown Yunlong.Song:Yunlong.Song perf.data # ls -al perf.data -rw------- 1 Yunlong.Song Yunlong.Song 5315665 Apr 2 10:54 perf.data # id uid=0(root) gid=0(root) groups=0(root),64(pkcs11) Before this patch: # perf kmem stat File perf.data not owned by current user or root (use -f to override) # perf kmem stat -f Error: unknown switch `f' usage: perf kmem [<options>] {record|stat} -i, --input <file> input file name -v, --verbose be more verbose (show symbol address, etc) --caller show per-callsite statistics --alloc show per-allocation statistics -s, --sort <key[,key2...]> sort by keys: ptr, call_site, bytes, hit, pingpong, frag -l, --line <num> show n lines --raw-ip show raw ip instead of symbol As shown above, the -f option does not work at all. After this patch: # perf kmem stat File perf.data not owned by current user or root (use -f to override) # perf kmem stat -f SUMMARY ======= Total bytes requested: 437599 Total bytes allocated: 615472 Total bytes wasted on internal fragmentation: 177873 Internal fragmentation: 28.900259% Cross CPU allocations: 6/1192 As shown above, the -f option really works now. Signed-off-by: Yunlong Song <yunlong.song@huawei.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/1427982439-27388-4-git-send-email-yunlong.song@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-04-02perf inject: Support using -f to override perf.data file ownershipYunlong Song
Enable perf inject to use perf.data when it is not owned by current user or root. Example: # perf record ls # chown Yunlong.Song:Yunlong.Song perf.data # ls -al perf.data -rw------- 1 Yunlong.Song Yunlong.Song 28260 Apr 2 10:37 perf.data # id uid=0(root) gid=0(root) groups=0(root),64(pkcs11) Before this patch: # perf inject -v -b -i perf.data -o perf.data.new File perf.data not owned by current user or root (use -f to override) # perf inject -v -b -i perf.data -o perf.data.new -f Error: unknown switch `f' usage: perf inject [<options>] -b, --build-ids Inject build-ids into the output stream -i, --input <file> input file name -o, --output <file> output file name -s, --sched-stat Merge sched-stat and sched-switch for getting events where and how long tasks slept -v, --verbose be more verbose (show build ids, etc) --kallsyms <file> kallsyms pathname As shown above, the -f option does not work at all. After this patch: # perf inject -v -b -i perf.data -o perf.data.new File perf.data not owned by current user or root (use -f to override) # perf inject -v -b -i perf.data -o perf.data.new -f build id event received for [kernel.kallsyms]: f6dcb66d8b98f1c0d9eb87bf043444b69f91d30c symsrc__init: cannot get elf header. Looking at the vmlinux_path (7 entries long) Using /proc/kcore for kernel object code Using /proc/kallsyms for symbols As shown above, the -f option really works now. Signed-off-by: Yunlong Song <yunlong.song@huawei.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/1427982439-27388-3-git-send-email-yunlong.song@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-04-02perf evlist: Support using -f to override perf.data file ownershipYunlong Song
Enable perf evlist to use perf.data when it is not owned by current user or root. Example: # perf record ls # chown Yunlong.Song:Yunlong.Song perf.data # ls -al perf.data -rw------- 1 Yunlong.Song Yunlong.Song 28260 Apr 2 10:18 perf.data # id uid=0(root) gid=0(root) groups=0(root),64(pkcs11) Before this patch: # perf evlist File perf.data not owned by current user or root (use -f to override) # perf evlist -f Error: unknown switch `f' usage: perf evlist [<options>] -i, --input <file> Input file name -F, --freq Show the sample frequency -v, --verbose Show all event attr details -g, --group Show event group information As shown above, the -f option does not work at all. After this patch: # perf evlist File perf.data not owned by current user or root (use -f to override) # perf evlist -f cycles As shown above, the -f option really works now. Signed-off-by: Yunlong Song <yunlong.song@huawei.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/1427982439-27388-2-git-send-email-yunlong.song@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-04-02perf probe: Fix to track down unnamed union/structure membersMasami Hiramatsu
Fix 'perf probe' to track down unnamed union/structure members. perf probe did not track down the tree of unnamed union/structure members, since it just failed to find given "name" in a parent structure/union. To solve this issue, I've introduced 2 changes. - Fix die_find_member() to track down the type-DIE if it is unnamed, and if it contains the specified member, returns the unnamed member. (note that we don't return found member, since unnamed member has the offset in the parent structure) - Fix convert_variable_fields() to track down the unnamed union/ structure (one-by-one). With this patch, perf probe can access unnamed fields: ----- #./perf probe -nfx ./perf lock__delete ops 'locked_ops=ops->locked.ops' Added new event: probe_perf:lock__delete (on lock__delete in /home/mhiramat/ksrc/linux-3/tools/perf/perf with ops locked_ops=ops->locked.ops) You can now use it in all perf tools, such as: perf record -e probe_perf:lock__delete -aR sleep 1 ----- Reported-by: Arnaldo Carvalho de Melo <acme@kernel.org> Report-Link: https://lkml.org/lkml/2015/3/5/431 Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/20150402073312.14482.37942.stgit@localhost.localdomain Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-04-02perf db-export: No need to have ->thread twice in struct export_sampleArnaldo Carvalho de Melo
As it comes from address_location->thread, that is already stored as export_sample->al, where the thread can be obtained. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/20150402141542.GA9630@kernel.org Link: http://lkml.kernel.org/n/tip-bzotbl4epoztw0jd6sm2stpf@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-04-02perf db-export: No need to pass thread twice to db_export__sampleArnaldo Carvalho de Melo
As it is available via another parameter, address_location->thread. Acked-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: lkml.kernel.org/r/551D08F8.3040706@intel.com Link: http://lkml.kernel.org/n/tip-6dbn0tcm9hyv92g7h3zj2dbt@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-04-02perf scripting: No need to pass thread twice to the scripting callbacksArnaldo Carvalho de Melo
It is already in the addr_location, so remove the redundant 'thread' parameter from the callback signatures. Acked-by: Jiri Olsa <jolsa@redhat.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1427906210-10519-3-git-send-email-acme@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-04-02perf script: No need to lookup thread twiceArnaldo Carvalho de Melo
We get the thread when we call perf_event__preprocess_sample(), no need to do it before that. Acked-by: Jiri Olsa <jolsa@redhat.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1427906210-10519-2-git-send-email-acme@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-04-02Merge branch 'perf/timer' into perf/coreIngo Molnar
This WIP branch is now ready to be merged. Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-04-01selftests: Change memory on-off-test.sh name to be uniqueShuah Khan
cpu and memory hotplug scripts use the same name. Change memory on-off-test.sh to mem-on-off-test.sh. Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-04-01selftests: change cpu on-off-test.sh name to be uniqueShuah Khan
cpu and memory hotplug scripts use the same name. Change cpu on-off-test.sh to cpu-on-off-test.sh. Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-03-31perf ordered_samples: Remove references to perf_{evlist,tool} and machinesArnaldo Carvalho de Melo
As these can be obtained from the ordered_events pointer, via container_of, reducing the cross section of ordered_samples. These were added to ordered_samples in: commit b7b61cbebd789a3dbca522e3fdb727fe5c95593f Author: Arnaldo Carvalho de Melo <acme@redhat.com> Date: Tue Mar 3 11:58:45 2015 -0300 perf ordered_events: Shorten function signatures By keeping pointers to machines, evlist and tool in ordered_events. But that was more a transitional patch while moving stuff out from perf_session.c to ordered_events.c and possibly not even needed by then, as we could use the container_of() method and instead of having the nr_unordered_samples stats in events_stats, we can have it in ordered_samples. Based-on-a-patch-by: Jiri Olsa <jolsa@kernel.org> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-4lk0t9js82g0tfc0x1onpkjt@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-03-31perf session: Always initialize ordered_eventsArnaldo Carvalho de Melo
Even when it is not used to actually reorder events, some of its fields are used, like session->ordered_events->tool, to shorten function signatures where tool, for instance, was being passed, as the tool is needed for the ordered_events code, we need it there and might as well use it for other perf_session needs. This fixes a problem where 'perf script' had some condition that made session->ordered_events not to be initialized even with its script->tool ordered_events related flags asking for it to be, which looks like another bug and needs to be investigated further. Always initializing session->ordered_events at least leaves the current assumptions in place, so do it now. Reported-by: David Ahern <dsahern@gmail.com> Reviewed-by: David Ahern <dsahern@gmail.com> Tested-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-b1xxk0rwkz2a0gip1uufmjqg@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-03-31perf tools: Fix ppid for synthesized fork eventsDavid Ahern
363b785f38 added synthesized fork events and set a thread's parent id to itself. Since we are already processing /proc/<pid>/status the ppid can be determined properly. Make it so. Signed-off-by: David Ahern <dsahern@gmail.com> Acked-by: Don Zickus <dzickus@redhat.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Joe Mario <jmario@redhat.com> Link: http://lkml.kernel.org/r/1427747758-18510-2-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-03-31perf tools: Refactor comm/tgid lookupDavid Ahern
Rather than parsing /proc/pid/status file one line at a time, read it into a buffer in one shot and search for all strings in one pass. tgid conversion also simplified -- removing the isspace walk. As noted by Arnaldo those are not needed for atoi == strtol calls. Signed-off-by: David Ahern <dsahern@gmail.com> Acked-by: Don Zickus <dzickus@redhat.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Joe Mario <jmario@redhat.com> Link: http://lkml.kernel.org/r/1427747758-18510-1-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-03-31perf callchain: Fix kernel symbol resolution by remembering the cpumodeDavid Hildenbrand
Commit 2e77784bb7d8 ("perf callchain: Move cpumode resolve code to add_callchain_ip") promised "No change in behavior.". As this commit breaks callchains on s390x (symbols not getting resolved, observed when profiling the kernel), this statement is wrong. The cpumode must be kept when iterating over all ips, otherwise the default (PERF_RECORD_MISC_USER) will be used by error. Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: David Hildenbrand <dahi@linux.vnet.ibm.com> Cc: Hendrik Brueckner <brueckner@linux.vnet.ibm.com> Cc: Kan Liang <kan.liang@intel.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1427703060-59883-1-git-send-email-dahi@linux.vnet.ibm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-03-31selftests/mount: Make git ignore all binaries in mount test suiteZhang Zhen
This patch includes the mount test binaries into the .gitignore file listing in their respective directories. This will make sure that git ignores all of these test binaries when displaying status. Signed-off-by: Zhang Zhen <zhenzhang.zhang@huawei.com> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2015-03-31kselftests: timers: Reduce default runtime on inconsistency-check and ↵John Stultz
set-timer-lat For the default run_timers target, the timers tests takes the majority of kselftests runtime. So this patch reduces the default runtime for inconsistentcy-check and set-timer-lat, which reduced the runtime almost in half. Before: 11m48.629s After: 6m47.723s Cc: Shuah Khan <shuahkh@osg.samsung.com> Cc: Prarit Bhargava <prarit@redhat.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Richard Cochran <richardcochran@gmail.com> Signed-off-by: John Stultz <john.stultz@linaro.org> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2015-03-31ftracetest: Convert exit -1 to exit $FAILMichael Ellerman
POSIX says that exit takes an unsigned integer between 0 and 255, so using -1 doesn't work on POSIX shells. There is already a well-defined failure code, $FAIL (1), so use that. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Acked-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2015-03-31ftracetest: Cope properly with stack tracer not being enabledMichael Ellerman
If the stack tracer (CONFIG_STACK_TRACER) is disabled, the fgraph-filter-stack test blows chunks: [8] ftrace - function graph filters with stack tracer [FAIL] + reset_tracer + echo nop ./ftracetest: 19: /home/michael/selftests/ftrace/test.d/ftrace/fgraph-filter-stack.tc: cannot create /proc/sys/kernel/stack_tracer_enabled: Directory nonexistent Fix it by checking if the proc file exists before echoing to it. With the patch applied it fails correctly with: [8] ftrace - function graph filters with stack tracer [UNSUPPORTED] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Acked-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2015-03-30perf build: Disable libbabeltrace check by defaultJiri Olsa
Disabling libbabeltrace check by default and replacing the NO_LIBBABELTRACE make variable with LIBBABELTRACE. Users wanting the libbabeltrace feature need to build via: $ make LIBBABELTRACE=1 The reason for this is that the libababeltrace interface we use (version 1.3) hasn't been packaged/released yet, thus the failing feature check only slows down build and confuses other (non CTF) developers. Requested-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Jiri Olsa <jolsa@kernel.org> Acked-by: Ingo Molnar <mingo@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jeremie Galarneau <jgalar@efficios.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: Tom Zanussi <tzanussi@gmail.com> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/20150328103030.GA8431@krava.redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-03-28selftests/powerpc: Add a test of the switch_endian() syscallMichael Ellerman
This adds a test of the switch_endian() syscall we added in the previous commit. We test it by calling the endian switch syscall, and then executing some code in the other endian to check everything went as expected. That code checks registers we expect to be maintained are. If the endian switch failed to happen that code sequence will be illegal and cause the test to abort. We then switch back to the original endian, do the same checks and finally write a success message and exit(0). Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2015-03-28tools: iio: generic_buffer: Fix generic scale extractionIrina Tirdea
When using generic_buffer to read data, the scale is not properly detected for scale shared by type. This is caused by a problem with the generation of generic name out of the full name. E.g.: for current->name in_accel_z, the extracted generic name is "in" (when it should be "in_accel"). This is used in generic_buffer to generate scale and offset paths (in_accel_scale). Consider the in_ or out_ prefix when extracting the generic name from the full name. Signed-off-by: Irina Tirdea <irina.tirdea@intel.com> Reviewed-by: Daniel Baluta <daniel.baluta@intel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-03-27Merge branch 'perf/core' into perf/timer, before applying new changesIngo Molnar
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-03-27Merge branch 'for-mingo' of ↵Ingo Molnar
git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu Pull RCU updates from Paul E. McKenney: - Documentation updates. - Changes permitting use of call_rcu() and friends very early in boot, for example, before rcu_init() is invoked. - Miscellaneous fixes. - Add in-kernel API to enable and disable expediting of normal RCU grace periods. - Improve RCU's handling of (hotplug-) outgoing CPUs. Note: ARM support is lagging a bit here, and these improved diagnostics might generate (harmless) splats. - NO_HZ_FULL_SYSIDLE fixes. - Tiny RCU updates to make it more tiny. Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-03-27Merge branch 'perf/urgent' into perf/core, to pick up fixes and to refresh ↵Ingo Molnar
the tree Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-03-26Merge tag 'linux-kselftest-4.0-rc6' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull kselftest fix from Shuah Khan. * tag 'linux-kselftest-4.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: selftests: Fix build failures when invoked from kselftest target
2015-03-26tools lib traceevent: Zero should not be considered "not found" in eval_flag()Steven Rostedt
Guilherme Cox found that: There is, however, a potential bug if there is an item with code zero that is not the first one in the symbol list, since eval_flag(..) returns 0 when it doesn't find anything. That is, if you have the following enums: enum { FOO_START = 0, FOO_GO = 1, FOO_END = 2 } and then have: __print_symbolic(foo, FOO_GO, "go", FOO_START, "start", FOO_END, "end") If none of the enums are known to pevent, then eval_flag() will return zero, and it will match it to the first item in the list, which would be FOO_GO, which is not zero. Luckily, in most cases, the first element would be zero, and the parsing would match out of sheer luck. Reported-by: Guilherme Cox <cox@computer.org> Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/r/20150324145813.0bfe95ba@gandalf.local.home Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-03-26perf trace: Fix syscall enter formatting bugArnaldo Carvalho de Melo
commit e596663ebb28a068f5cca57f83285b7b293a2c83 Author: Arnaldo Carvalho de Melo <acme@redhat.com> Date: Fri Feb 13 13:22:21 2015 -0300 perf trace: Handle multiple threads better wrt syscalls being intermixed Introduced a bug where it considered the number of bytes output directly to the output file when formatting the syscall entry buffer that is stored to be finally printed at syscall exit, ending up leaving garbage at the start of syscalls that appeared while another syscall was being processed, in another thread. Fix it. Example of garbage in the output before this patch: 4280.102 ( 0.000 ms): lsmd/763 ... [continued]: select()) = 0 Timeout 4280.107 (275.250 ms): tuned/852 select(tvp: 0x7f41f7ffde50 ) ... 4280.109 ( 0.002 ms): lsmd/763 Xl�� ) = -10 4639.197 ( 0.000 ms): systemd-journa/542 ... [continued]: epoll_wait()) = 1 4639.202 (359.088 ms): lsmd/763 select(n: 6, inp: 0x7ffff21daad0, tvp: 0x7ffff21daac0) ... 4639.207 ( 0.005 ms): systemd-journa/542 Hn�� ) = 106 4639.221 ( 0.002 ms): systemd-journa/542 uname(name: 0x7ffdbaed8e00) = 0 4639.271 ( 0.008 ms): systemd-journa/542 ftruncate(fd: 11</run/log/journal/60cd52417cf440a4a80107518bbd3c20/system.journal>, length: 50331648) = 0 Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-9ckfe8mvsedgkg6y80gz1ul8@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-03-26perf tools: Set JOBS based on CPU or processorDavid Ahern
Number of JOBS to use is set automatically to the number of processors found in /proc/cpuinfo. SPARC uses 'CPU' lines rather than 'processor'. Update the check in perf's Makefile to work for SPARC. Signed-off-by: David Ahern <david.ahern@oracle.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/r/1427213455-127249-1-git-send-email-david.ahern@oracle.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-03-26perf: Bump max number of cpus to 1024David Ahern
SPARC based systems currently support up to 1024 cpus (e.g. T5-8). Allow perf to work on those systems. Signed-off-by: David Ahern <david.ahern@oracle.com> Link: http://lkml.kernel.org/r/1427213438-127216-1-git-send-email-david.ahern@oracle.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-03-26perf evlist: Return the first evsel with an invalid filter in apply_filters()Arnaldo Carvalho de Melo
Use of a bad filter currently generates the message: Error: failed to set filter with 22 (Invalid argument) Add the event name to make it clear to which event the filter failed to apply: Error: Failed to set filter "foo" on event sched:sg_lb_stats: 22: Invalid argument To test it use something like: # perf record -e sched:sched_switch -e sched:*fork --filter parent_pid==1 -e sched:*wait* --filter bla usleep 1 Error: failed to set filter "bla" on event sched:sched_stat_iowait with 22 (Invalid argument) # Based-on-a-patch-by: David Ahern <dsahern@gmail.com> Acked-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-d7gq2fjvaecozp9o2i0siifu@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-03-26perf timechart: Fix SIBGUS error on sparc64David Ahern
perf timechart -T on sparc64 is terminating due to SIGBUS. Backtrace: Program received signal SIGBUS, Bus error. 0x0000000000173d7c in perf_evsel__intval (evsel=<value optimized out>, sample=0x7feffffda28, name=0x289b28 "prev_state") at util/evsel.c:1918 1918 util/evsel.c: No such file or directory. in util/evsel.c Missing separate debuginfos, use: debuginfo-install audit-libs-2.3.7-1.0.1.el6.sparc64 bzip2-libs-1.0.5-7.el6_0.sparc64 elfutils-libelf-0.155-2.0.3.el6.sparc64 elfutils-libs-0.155-2.0.3.el6.sparc64 glibc-2.12-1.132.0.8.el6_5.sparc64 numactl-2.0.7-8.el6.sparc64 python-libs-2.6.6-52.0.2.el6.sparc64 slang-2.2.1-1.el6.sparc64 xz-libs-4.999.9-0.3.beta.20091007git.el6.sparc64 zlib-1.2.3-29.el6.sparc64 (gdb) bt 0 0x0000000000173d7c in perf_evsel__intval (evsel=<value optimized out>, sample=0x7feffffda28, name=0x289b28 "prev_state") at util/evsel.c:1918 1 0x0000000000123b94 in process_sample_sched_switch (tchart=0x7feffffe040, evsel=0x4ca850, sample=0x7feffffda28, backtrace=0xc39010 "") at builtin-timechart.c:627 2 0x0000000000122828 in process_sample_event (tool=0x7feffffe040, event=<value optimized out>, sample=0x7feffffda28, evsel=0x4ca850, machine=0x4c9c88) at builtin-timechart.c:569 Another extended load on unaligned pointer. As before fix by copying to a temporary variable using memcpy. Signed-off-by: David Ahern <david.ahern@oracle.com> Link: http://lkml.kernel.org/r/1427228049-51893-1-git-send-email-david.ahern@oracle.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-03-25tracing: %pF is only for function pointersScott Wood
Use %pS for actual addresses, otherwise you'll get bad output on arches like ppc64 where %pF expects a function descriptor. Link: http://lkml.kernel.org/r/1426130037-17956-22-git-send-email-scottwood@freescale.com Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2015-03-25hv: hypervvssd: call endmntent before call setmntent againVaughan Cao
If freeze fails, vss_operate will re-enter itself to thaw. But it forgets to call endmntent() before it recalls setmntent() again. Signed-off-by: Vaughan Cao <vaughan.cao@oracle.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-03-25tools: hv: fcopy_daemon: support >2GB files for x86_32 guestDexuan Cui
Without this patch, hv_fcopy_daemon's hv_copy_data() -> pwrite() will fail for >2GB file offset. The current char-next branch is broken and this patch fixes the bug. Signed-off-by: Alex Ng <alexng@microsoft.com> Signed-off-by: Dexuan Cui <decui@microsoft.com> Cc: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-03-24tools, update rtctest.c to verify passage of timePrarit Bhargava
rtctest.c checks to see if PIE is functioning by testing if 20 interrupts occur at rates from 2HZ to 64HZ. While this check is good, it does not check to see if the correct amount of time has actually passed. This misses situations where the RTC may be operating at a higher or lower frequency than expected. This patch introduces a simple check to verify if the time passed is less than 10% of what was programmed into the RTC. Signed-off-by: Prarit Bhargava <prarit@redhat.com> Acked-by: John Stultz <john.stultz@linaro.org> Cc: corbet@lwn.net Cc: rtc-linux@googlegroups.com Cc: linux-doc@vger.kernel.org Cc: a.zummo@towertech.it Cc: prarit@redhat.com Cc: john.stultz@linaro.org Cc: shuahkh@osg.samsung.com Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2015-03-24Documentation, split up rtc.txt into documentation and test filePrarit Bhargava
This patch splits rtc.txt into two separate files, one for the documentation itself, and the other for the rtctest.c file. The rtctest file is moved into the kernel tools/testing/selftests/timers directory. This will make automated testing easier. Note that the only difference in the rtc.txt file is that the location of the rtctest.c file has changed. Signed-off-by: Prarit Bhargava <prarit@redhat.com> Acked-by: Jonathan Corbet <corbet@lwn.net> Acked-by: John Stultz <john.stultz@linaro.org> Cc: corbet@lwn.net Cc: rtc-linux@googlegroups.com Cc: linux-doc@vger.kernel.org Cc: a.zummo@towertech.it Cc: prarit@redhat.com Cc: john.stultz@linaro.org Cc: shuahkh@osg.samsung.com Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2015-03-24tools: bpf_asm: cleanup vlan extension related tokenDaniel Borkmann
We now have K_VLANT, K_VLANP and K_VLANTPID. Clean them up into more descriptive token, namely K_VLAN_TCI, K_VLAN_AVAIL and K_VLAN_TPID. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: David S. Miller <davem@davemloft.net>
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