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2013-11-05arm64: Use 42-bit address space with 64K pagesCatalin Marinas4-7/+37
This patch expands the VA_BITS to 42 when the 64K page configuration is enabled allowing 2TB kernel linear mapping. Linux still uses 2 levels of page tables in this configuration with pgd now being a full page. Signed-off-by: Catalin Marinas <[email protected]> Acked-by: Will Deacon <[email protected]> Acked-by: Marc Zyngier <[email protected]>
2013-11-05tools/perf/build: Fix detection of non-core featuresDavid Ahern1-5/+5
feature_check needs to be invoked through call, and LDFLAGS may not be set so quotes are needed. Thanks to Jiri for spotting the quotes around LDFLAGS; that one was driving me nuts with the upcoming timerfd feature detection. Signed-off-by: David Ahern <[email protected]> Reviewed-by: Jiri Olsa <[email protected]> Tested-by: Jiri Olsa <[email protected]> Acked-by: Ingo Molnar <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/[email protected] [ Fixed conflict with 8a0c4c2843d3 ("perf tools: Fix libunwind build and feature detection for 32-bit build") ] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2013-11-05perf kvm: Disable live command if timerfd is not supportedDavid Ahern5-1/+47
If the OS does not have timerfd support (e.g., older OS'es like RHEL5) disable perf kvm stat live. Signed-off-by: David Ahern <[email protected]> Reviewed-by: Jiri Olsa <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2013-11-05arm64: module: ensure instruction is little-endian before manipulationWill Deacon1-1/+4
Relocations that require an instruction immediate to be re-encoded must ensure that the instruction pattern is represented in a little-endian format for the manipulation code to work correctly. This patch converts the loaded instruction into native-endianess prior to encoding and then converts back to little-endian byteorder before updating memory. Signed-off-by: Will Deacon <[email protected]> Tested-by: Matthew Leach <[email protected]> Signed-off-by: Catalin Marinas <[email protected]>
2013-11-05arm64: defconfig: Enable CONFIG_PREEMPT by defaultCatalin Marinas1-1/+1
This way we can spot early bugs when just testing with the default config. Signed-off-by: Catalin Marinas <[email protected]>
2013-11-05arm64: fix access to preempt_count from assembly codeMarc Zyngier1-11/+11
preempt_count is defined as an int. Oddly enough, we access it as a 64bit value. Things become interesting when running a BE kernel, and looking at the current CPU number, which is stored as an int next to preempt_count. Like in a per-cpu interrupt handler, for example... Using a 32bit access fixes the issue for good. Cc: Matthew Leach <[email protected]> Signed-off-by: Marc Zyngier <[email protected]> Signed-off-by: Catalin Marinas <[email protected]>
2013-11-04x86, defconfig: Add DEVTMPFS and DEVTMPFS_MOUNT to *86*_defconfigChen Gang2-0/+4
The defconfig kernel can not run under neither fedora16 x86_64 laptop nor fedora17 x86_64 pc. After enable DEVTMPFS* in x86_64_defconfig, it will be OK. DEVTMPFS* is only related with software, so for i386_defconfig may also need them (at least, it has no negative effect for defconfig). Signed-off-by: Chen Gang <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: H. Peter Anvin <[email protected]>
2013-11-04perf hists: Consolidate __hists__add_*entry()Namhyung Kim7-95/+30
The __hists__add_{branch,mem}_entry() does almost the same thing that __hists__add_entry() does. Consolidate them into one. Signed-off-by: Namhyung Kim <[email protected]> Acked-by: Jiri Olsa <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Rodrigo Campos <[email protected]> Cc: Stephane Eranian <[email protected]> Link: http://lkml.kernel.org/r/[email protected] [ Fixup clash with new COMM infrastructure ] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2013-11-04NFSv4.2: Remove redundant checks in nfs_setsecurity+nfs4_label_init_securityTrond Myklebust2-9/+0
We already check for nfs_server_capable(inode, NFS_CAP_SECURITY_LABEL) in nfs4_label_alloc() We check the minor version in _nfs4_server_capabilities before setting NFS_CAP_SECURITY_LABEL. Signed-off-by: Trond Myklebust <[email protected]>
2013-11-04NFSv4: Sanity check the server reply in _nfs4_server_capabilitiesTrond Myklebust2-5/+22
We don't want to be setting capabilities and/or requesting attributes that are not appropriate for the NFSv4 minor version. - Ensure that we clear the NFS_CAP_SECURITY_LABEL capability when appropriate - Ensure that we limit the attribute bitmasks to the mounted_on_fileid attribute and less for NFSv4.0 - Ensure that we limit the attribute bitmasks to suppattr_exclcreat and less for NFSv4.1 - Ensure that we limit it to change_sec_label or less for NFSv4.2 Signed-off-by: Trond Myklebust <[email protected]>
2013-11-04NFSv4.2: encode_readdir - only ask for labels when doing readdirplusTrond Myklebust1-13/+12
Currently, if the server is doing NFSv4.2 and supports labeled NFS, then our on-the-wire READDIR request ends up asking for the label information, which is then ignored unless we're doing readdirplus. This patch ensures that READDIR doesn't ask the server for label information at all unless the readdir->bitmask contains the FATTR4_WORD2_SECURITY_LABEL attribute, and the readdir->plus flag is set. While we're at it, optimise away the 3rd bitmap field if it is zero. Signed-off-by: Trond Myklebust <[email protected]>
2013-11-04nfs: set security label when revalidating inodeJeff Layton1-0/+2
Currently, we fetch the security label when revalidating an inode's attributes, but don't apply it. This is in contrast to the readdir() codepath where we do apply label changes. Cc: Dave Quigley <[email protected]> Signed-off-by: Jeff Layton <[email protected]> Signed-off-by: Trond Myklebust <[email protected]>
2013-11-04NFSv4.2: Fix a mismatch between Linux labeled NFS and the NFSv4.2 specTrond Myklebust1-1/+1
In the spec, the security label attribute id is '80', which means that it should be bit number 80-64 == 16 in the 3rd word of the bitmap. Fixes: 4488cc96c581: NFS: Add NFSv4.2 protocol constants Cc: J. Bruce Fields <[email protected]> Cc: Steve Dickson <[email protected]> Cc: [email protected] # 3.11+ Signed-off-by: Trond Myklebust <[email protected]>
2013-11-04Merge tag 'perf-core-for-mingo' of ↵Ingo Molnar35-303/+722
git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo: * Add new COMM infrastructure, further improving histogram processing, from Frédéric Weisbecker, one fix from Namhyung Kim. * Enhance option parse error message, showing just the help lines of the options affected, from Namhyung Kim. * Fixup PERF_SAMPLE_TRANSACTION handling in sample synthesizing and 'perf test', from Adrian Hunter. * Set up output options for in-stream attributes, from Adrian Hunter. * Fix 32-bit cross build, from Adrian Hunter. * Fix libunwind build and feature detection for 32-bit build, from Adrian Hunter. * Always use perf_evsel__set_sample_bit to set sample_type, from Adrian Hunter. perf evlist: Add a debug print if event buffer mmap fails * Add missing data.h into LIB_H headers, fix from Jiri Olsa. * libtraceevent updates from upstream trace-cmd repo, from Steven Rostedt. Signed-off-by: Arnaldo Carvalho de Melo <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
2013-11-04arm64: move enabling of GIC before CPUs are set onlineMarc Zyngier1-5/+5
Commit 53ae3acd (arm64: Only enable local interrupts after the CPU is marked online) moved the enabling of the GIC after the CPUs are marked online. This has some interesting effect: [...] [<ffffffc0002eefd8>] gic_raise_softirq+0xf8/0x160 [<ffffffc000088f58>] smp_send_reschedule+0x38/0x40 [<ffffffc0000c8728>] resched_task+0x84/0xc0 [<ffffffc0000c8cdc>] check_preempt_curr+0x58/0x98 [<ffffffc0000c8d38>] ttwu_do_wakeup+0x1c/0xf4 [<ffffffc0000c8f90>] ttwu_do_activate.constprop.84+0x64/0x70 [<ffffffc0000cad30>] try_to_wake_up+0x1d4/0x2b4 [<ffffffc0000cae6c>] default_wake_function+0x10/0x18 [<ffffffc0000c5ca4>] __wake_up_common+0x60/0xa0 [<ffffffc0000c7784>] complete+0x48/0x64 [<ffffffc000088bec>] secondary_start_kernel+0xe8/0x110 [...] Here, we end-up calling gic_raise_softirq without having initialized the interrupt controller for this CPU. While this goes unnoticed with GICv2 (the distributor is always accessible), it explodes with GICv3. The fix is to move the call to notify_cpu_starting before we set the secondary CPU online. Signed-off-by: Marc Zyngier <[email protected]> Signed-off-by: Catalin Marinas <[email protected]>
2013-11-04arm64: use generic RW_DATA_SECTION macro in linker scriptMark Salter1-24/+7
The .data section in the arm64 linker script currently lacks a definition for page-aligned data. This leads to a .page_aligned section being placed between the end of data and start of bss. This patch corrects that by using the generic RW_DATA_SECTION macro which includes support for page-aligned data. Signed-off-by: Mark Salter <[email protected]> Acked-by: Will Deacon <[email protected]> Signed-off-by: Catalin Marinas <[email protected]>
2013-11-04tools lib traceevent: Add pevent_print_func_field() helper functionSteven Rostedt2-0/+46
Add the pevent_print_func_field() that will look up a field that is expected to be a function pointer, and it will print the function name and offset of the address given by the field. Signed-off-by: Steven Rostedt <[email protected]> Cc: Andrew Morton <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Namhyung Kim <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2013-11-04tools lib traceevent: Add flags NOHANDLE and PRINTRAW to individual eventsSteven Rostedt2-2/+4
Add the flags EVENT_FL_NOHANDLE and EVENT_FL_PRINTRAW to the event flags to have the event either ignore the register handler or to ignore the handler and also print the raw format respectively. This allows a tool to force a raw format or non handle for an event. Signed-off-by: Steven Rostedt <[email protected]> Cc: Andrew Morton <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Namhyung Kim <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2013-11-04tools lib traceevent: Check for spaces in character arraySteven Rostedt (Red Hat)1-1/+1
Currently when using the raw format for fields, when looking at a character array, to determine if it is a string or not, we make sure all characters are "isprint()". If not, then we consider it a numeric array, and print the hex numbers of the characters instead. But it seems that '\n' fails the isprint() check! Add isspace() to the check as well, such that if all characters pass isprint() or isspace() it will assume the character array is a string. Reported-by: Xenia Ragiadakou <[email protected]> Signed-off-by: Steven Rostedt <[email protected]> Cc: Andrew Morton <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Xenia Ragiadakou <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2013-11-04tools lib traceevent: Have bprintk output the same as the kernel doesSteven Rostedt (Red Hat)1-4/+4
The trace_bprintk() in the kernel looks like: ring_buffer_producer_thread: Missed: 0 ring_buffer_producer_thread: Hit: 62174350 ring_buffer_producer_thread: Entries per millisec: 6296 ring_buffer_producer_thread: 158 ns per entry ring_buffer_producer_thread: Sleeping for 10 secs ring_buffer_producer_thread: Starting ring buffer hammer ring_buffer_producer_thread: End ring buffer hammer But the current output looks like this: ring_buffer_producer_thread : Time: 9407018 (usecs) ring_buffer_producer_thread : Overruns: 43285485 ring_buffer_producer_thread : Read: 4405365 (by events) ring_buffer_producer_thread : Entries: 0 ring_buffer_producer_thread : Total: 47690850 ring_buffer_producer_thread : Missed: 0 ring_buffer_producer_thread : Hit: 47690850 Remove the space between the function and the colon. Signed-off-by: Steven Rostedt <[email protected]> Cc: Andrew Morton <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Namhyung Kim <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2013-11-04tools lib traceevent: Handle __print_hex(__get_dynamic_array(fieldname), len)Howard Cochran1-8/+16
The kernel has a few events with a format similar to this excerpt: field:unsigned int len; offset:12; size:4; signed:0; field:__data_loc unsigned char[] data_array; offset:16; size:4; signed:0; print fmt: "%s", __print_hex(__get_dynamic_array(data_array), REC->len) trace-cmd could already parse that arg correctly, but print_str_arg() was unable to handle the first parameter being a dynamic array. (It just printed a "field not found" warning). Teach print_str_arg's PRINT_HEX case to handle the nested PRINT_DYNAMIC_ARRAY correctly. The output now matches the kernel's own formatting for this case. Signed-off-by: Howard Cochran <[email protected]> Cc: Andrew Morton <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Namhyung Kim <[email protected]> Link: http://lkml.kernel.org/r/[email protected] [ Removed "polish compare", we don't do that here ] Signed-off-by: Steven Rostedt <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2013-11-04tools lib traceevent: If %s is a pointer, check printk formatsSteven Rostedt (Red Hat)1-1/+7
If the format string of TP_printk() contains a %s, and the argument is not a string, check if the argument is a pointer that might match the printk_formats that were stored. Signed-off-by: Steven Rostedt <[email protected]> Cc: Andrew Morton <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Namhyung Kim <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2013-11-04tools lib traceevent: Update printk formats when enteredSteven Rostedt (Red Hat)2-16/+15
Instead of cropping off the '"' and '\n"' from a printk format every time it is referenced, do it when it's added. This makes it easier to reference a printk_map and should speed things up a little. Signed-off-by: Steven Rostedt <[email protected]> Cc: Andrew Morton <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Namhyung Kim <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2013-11-04tools lib traceevent: Add support for extracting trace_clock in reportYoshihiro YUNOMAE2-12/+44
If trace-cmd extracts trace_clock, trace-cmd reads trace_clock data from the trace.dat and switches outputting format of timestamp for each trace_clock. Signed-off-by: Yoshihiro YUNOMAE <[email protected]> Cc: Andrew Morton <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Namhyung Kim <[email protected]> Link: http://lkml.kernel.org/r/20130424231305.14877.86147.stgit@yunodevel Signed-off-by: Steven Rostedt <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2013-11-04MIPS: Random whitespace clean-upsMaciej W. Rozycki3-6/+6
Another whitespace clean-up, this removes tabs from between sentences in some comments. Signed-off-by: Maciej W. Rozycki <[email protected]> Cc: [email protected] Patchwork: https://patchwork.linux-mips.org/patch/6103/ Signed-off-by: Ralf Baechle <[email protected]>
2013-11-04perf stat: Enhance option parse error messageNamhyung Kim2-16/+29
Print related option help messages only when it failed to process options. While at it, modify parse_options_usage() to skip usage part so that it can be used for showing multiple option help messages naturally like below: $ perf stat -Bx, ls -B option not supported with -x usage: perf stat [<options>] [<command>] -B, --big-num print large numbers with thousands' separators -x, --field-separator <separator> print counts with custom separator Signed-off-by: Namhyung Kim <[email protected]> Acked-by: Ingo Molnar <[email protected]> Reviewed-by: Ingo Molnar <[email protected]> Enthusiastically-Supported-by: Ingo Molnar <[email protected]> Cc: David Ahern <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2013-11-04perf top: Use parse_options_usage() for -s option failureNamhyung Kim1-3/+5
The -s (--sort) option was processed after normal option parsing so that it cannot call the parse_options_usage() automatically. Currently it calls usage_with_options() which shows entire help messages for event option. Fix it by showing just -s options. $ perf top -s help Error: Unknown --sort key: `help' usage: perf top [<options>] -s, --sort <key[,key2...]> sort by key(s): pid, comm, dso, symbol, ... Signed-off-by: Namhyung Kim <[email protected]> Acked-by: Ingo Molnar <[email protected]> Reviewed-by: Ingo Molnar <[email protected]> Enthusiastically-Supported-by: Ingo Molnar <[email protected]> Cc: David Ahern <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2013-11-04perf report: Use parse_options_usage() for -s option failureNamhyung Kim1-2/+4
The -s (--sort) option was processed after normal option parsing so that it cannot call the parse_options_usage() automatically. Currently it calls usage_with_options() which shows entire help messages for event option. Fix it by showing just -s options. $ perf report -s help Error: Unknown --sort key: `help' usage: perf report [<options>] -s, --sort <key[,key2...]> sort by key(s): pid, comm, dso, symbol, ... Signed-off-by: Namhyung Kim <[email protected]> Acked-by: Ingo Molnar <[email protected]> Reviewed-by: Ingo Molnar <[email protected]> Enthusiastically-Supported-by: Ingo Molnar <[email protected]> Cc: David Ahern <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2013-11-04perf report: Postpone setting up browser after parsing optionsNamhyung Kim1-12/+12
If setup_browser() called earlier than option parsing, the actual error message can be discarded during the terminal reset. So move it after setup_sorting() checks whether the sort keys are valid. Signed-off-by: Namhyung Kim <[email protected]> Acked-by: Ingo Molnar <[email protected]> Reviewed-by: Ingo Molnar <[email protected]> Enthusiastically-Supported-by: Ingo Molnar <[email protected]> Cc: David Ahern <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2013-11-04perf tools: Show single option when failed to parseNamhyung Kim2-89/+132
Current option parser outputs whole option help string when it failed to parse an option. However this is not good for user if the command has many option, she might feel hard which one is related easily. Fix it by just showing the help message of the given option only. Signed-off-by: Namhyung Kim <[email protected]> Requested-by: Ingo Molnar <[email protected]> Acked-by: Ingo Molnar <[email protected]> Reviewed-by: Ingo Molnar <[email protected]> Enthusiastically-Supported-by: Ingo Molnar <[email protected]> Cc: David Ahern <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2013-11-04perf evsel: Synthesize PERF_SAMPLE_TRANSACTIONAdrian Hunter1-0/+8
Add missing PERF_SAMPLE_TRANSACTION to perf_event__synthesize_sample() and perf_event__sample_event_size(). This makes the "sample parsing" test pass. Signed-off-by: Adrian Hunter <[email protected]> Cc: Andi Kleen <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Mike Galbraith <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Stephane Eranian <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2013-11-04perf test: Update "sample parsing" test for PERF_SAMPLE_TRANSACTIONAdrian Hunter1-1/+6
In fact the "sample parsing" test does not automatically check new sample type bits - they must be added to the comparison logic. Doing that shows that the test fails because the functions perf_event__synthesize_sample() and perf_event__sample_event_size() have not been updated with PERF_SAMPLE_TRANSACTION either. Signed-off-by: Adrian Hunter <[email protected]> Cc: Andi Kleen <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Mike Galbraith <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Stephane Eranian <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2013-11-04perf evsel: Add missing overflow check for TRANSACTIONAdrian Hunter1-0/+1
Add missing overflow check for PERF_SAMPLE_TRANSACTION in perf_evsel__parse_sample(). Signed-off-by: Adrian Hunter <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Mike Galbraith <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Stephane Eranian <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2013-11-04perf evsel: Always use perf_evsel__set_sample_bit()Adrian Hunter1-3/+3
Always use perf_evsel__set_sample_bit() rather than just setting the bit. Signed-off-by: Adrian Hunter <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Mike Galbraith <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Stephane Eranian <[email protected]> Link: http://lkml.kernel.org/r/[email protected] [ Cope with 3090ffb "perf: Disable PERF_RECORD_MMAP2 support" ] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2013-11-04perf evlist: Add a debug print if event buffer mmap failsAdrian Hunter1-0/+2
Add a debug print if mmap of the perf event ring buffer fails. Signed-off-by: Adrian Hunter <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Mike Galbraith <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Stephane Eranian <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2013-11-04perf tools: Fix libunwind build and feature detection for 32-bit buildAdrian Hunter2-4/+6
Use -lunwind-x86 instead of -lunwind-x86_64 for 32-bit build. Signed-off-by: Adrian Hunter <[email protected]> Acked-by: Jiri Olsa <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Mike Galbraith <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Stephane Eranian <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2013-11-04perf tools: Fix 32-bit cross buildAdrian Hunter3-4/+4
Setting EXTRA_CFLAGS=-m32 did not work because it was not passed around. Signed-off-by: Adrian Hunter <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Mike Galbraith <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Stephane Eranian <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2013-11-04perf script: Set up output options for in-stream attributesAdrian Hunter1-16/+48
Attributes (struct perf_event_attr) are recorded separately in the perf.data file. perf script uses them to set up output options. However attributes can also be in the event stream, for example when the input is a pipe (i.e. live mode). This patch makes perf script process in-stream attributes in the same way as on-file attributes. Here is an example: Before this patch: $ perf record uname | perf script Linux [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.015 MB (null) (~655 samples) ] :4220 4220 [-01] 2933367.838906: cycles: :4220 4220 [-01] 2933367.838910: cycles: :4220 4220 [-01] 2933367.838912: cycles: :4220 4220 [-01] 2933367.838914: cycles: :4220 4220 [-01] 2933367.838916: cycles: :4220 4220 [-01] 2933367.838918: cycles: uname 4220 [-01] 2933367.838938: cycles: uname 4220 [-01] 2933367.839207: cycles: After this patch: $ perf record uname | perf script Linux [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.015 MB (null) (~655 samples) ] :4582 4582 2933425.707724: cycles: ffffffff81043ffa native_write_msr_safe ([kernel.kallsyms]) :4582 4582 2933425.707728: cycles: ffffffff81043ffa native_write_msr_safe ([kernel.kallsyms]) :4582 4582 2933425.707730: cycles: ffffffff81043ffa native_write_msr_safe ([kernel.kallsyms]) :4582 4582 2933425.707732: cycles: ffffffff81043ffa native_write_msr_safe ([kernel.kallsyms]) :4582 4582 2933425.707734: cycles: ffffffff81043ffa native_write_msr_safe ([kernel.kallsyms]) :4582 4582 2933425.707736: cycles: ffffffff81309a24 memcpy ([kernel.kallsyms]) uname 4582 2933425.707760: cycles: ffffffff8109c1c7 enqueue_task_fair ([kernel.kallsyms]) uname 4582 2933425.707978: cycles: ffffffff81308457 clear_page_c ([kernel.kallsyms]) Signed-off-by: Adrian Hunter <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Mike Galbraith <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Stephane Eranian <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2013-11-04perf evsel: Add a debug print if perf_event_open failsAdrian Hunter1-0/+2
There is a debug print (at verbose level 2) for each call to perf_event_open. Add another debug print if the call fails, and print the error number. Signed-off-by: Adrian Hunter <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Mike Galbraith <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Stephane Eranian <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2013-11-04perf tools: Get current comm instead of last oneNamhyung Kim7-12/+30
At insert time, a hist entry should reference comm at the time otherwise it'll get the last comm anyway. Signed-off-by: Namhyung Kim <[email protected]> Acked-by: Frederic Weisbecker <[email protected]> Tested-by: Jiri Olsa <[email protected]> Cc: Frederic Weisbecker <[email protected]> Link: http://lkml.kernel.org/n/[email protected] [ Fixed up const pointer issues ] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2013-11-04perf tools: Compare hists comm by addressesFrederic Weisbecker1-1/+2
Now that comm strings are allocated only once and refcounted to be shared among threads, these can now be safely compared by addresses. This should remove most hists collapses on post processing. Signed-off-by: Frederic Weisbecker <[email protected]> Tested-by: Jiri Olsa <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: David Ahern <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Arnaldo Carvalho de Melo <[email protected]> Cc: Stephane Eranian <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Namhyung Kim <[email protected]>
2013-11-04perf tools: Add new COMM infrastructureFrederic Weisbecker6-27/+200
This new COMM infrastructure provides two features: 1) It keeps track of all comms lifecycle for a given thread. This way we can associate a timeframe to any thread COMM, as long as PERF_SAMPLE_TIME samples are joined to COMM and fork events. As a result we should have more precise COMM sorted hists with seperated entries for pre and post exec time after a fork. 2) It also makes sure that a given COMM string is not duplicated but rather shared among the threads that refer to it. This way the threads COMM can be compared against pointer values from the sort infrastructure. Signed-off-by: Frederic Weisbecker <[email protected]> Tested-by: Jiri Olsa <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: David Ahern <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Arnaldo Carvalho de Melo <[email protected]> Cc: Stephane Eranian <[email protected]> Link: http://lkml.kernel.org/n/[email protected] [ Rename some accessor functions ] Signed-off-by: Namhyung Kim <[email protected]> [ Use __ as separator for class__method for private comm_str methods ] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2013-11-04perf tools: Add time argument on COMM settingFrederic Weisbecker10-53/+67
This way we can later delimit a lifecycle for the COMM and map a hist to a precise COMM:timeslice couple. PERF_RECORD_COMM and PERF_RECORD_FORK events that don't have PERF_SAMPLE_TIME samples can only send 0 value as a timestamp and thus should overwrite any previous COMM on a given thread because there is no sensible way to keep track of all the comms lifecycles in a thread without time informations. Signed-off-by: Frederic Weisbecker <[email protected]> Tested-by: Jiri Olsa <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: David Ahern <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Stephane Eranian <[email protected]> Link: http://lkml.kernel.org/n/[email protected] [ Made it cope with PERF_RECORD_MMAP2 ] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2013-11-04perf tools: Use an accessor to read thread commFrederic Weisbecker12-30/+37
As the thread comm is going to be implemented by way of a more complicated data structure than just a pointer to a string from the thread struct, convert the readers of comm to use an accessor instead of accessing it directly. The accessor will be later overriden to support an enhanced comm implementation. Signed-off-by: Frederic Weisbecker <[email protected]> Tested-by: Jiri Olsa <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: David Ahern <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Arnaldo Carvalho de Melo <[email protected]> Cc: Stephane Eranian <[email protected]> Link: http://lkml.kernel.org/n/[email protected] [ Rename thread__comm_curr() to thread__comm_str() ] Signed-off-by: Namhyung Kim <[email protected]> [ Fixed up some minor const pointer issues ] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2013-11-04Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds59-287/+303
Pull networking fixes from David Miller: "I'm sending a pull request of these lingering bug fixes for networking before the normal merge window material because some of this stuff I'd like to get to -stable ASAP" 1) cxgb3 stopped working on 32-bit machines, fix from Ben Hutchings. 2) Structures passed via netlink for netfilter logging are not fully initialized. From Mathias Krause. 3) Properly unlink upper openvswitch device during notifications, from Alexei Starovoitov. 4) Fix race conditions involving access to the IP compression scratch buffer, from Michal Kubrecek. 5) We don't handle the expiration of MTU information contained in ipv6 routes sometimes, fix from Hannes Frederic Sowa. 6) With Fast Open we can miscompute the TCP SYN/ACK RTT, from Yuchung Cheng. 7) Don't take TCP RTT sample when an ACK doesn't acknowledge new data, also from Yuchung Cheng. 8) The decreased IPSEC garbage collection threshold causes problems for some people, bump it back up. From Steffen Klassert. 9) Fix skb->truesize calculated by tcp_tso_segment(), from Eric Dumazet. 10) flow_dissector doesn't validate packet lengths sufficiently, from Jason Wang * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (41 commits) net/mlx4_core: Fix call to __mlx4_unregister_mac net: sctp: do not trigger BUG_ON in sctp_cmd_delete_tcb net: flow_dissector: fail on evil iph->ihl xfrm: Fix null pointer dereference when decoding sessions can: kvaser_usb: fix usb endpoints detection can: c_can: Fix RX message handling, handle lost message before EOB doc:net: Fix typo in Documentation/networking bgmac: don't update slot on skb alloc/dma mapping error ibm emac: Fix locking for enable/disable eob irq ibm emac: Don't call napi_complete if napi_reschedule failed virtio-net: correctly handle cpu hotplug notifier during resuming bridge: pass correct vlan id to multicast code net: x25: Fix dead URLs in Kconfig netfilter: xt_NFQUEUE: fix --queue-bypass regression xen-netback: use jiffies_64 value to calculate credit timeout cxgb3: Fix length calculation in write_ofld_wr() on 32-bit architectures bnx2x: Disable VF access on PF removal bnx2x: prevent FW assert on low mem during unload tcp: gso: fix truesize tracking xfrm: Increase the garbage collector threshold ...
2013-11-04perf tools: Add missing data.h into LIB_H headersJiri Olsa1-0/+1
Adding missing data.h into LIB_H headers so the build could keep up with its changes. Reported-by: Adrian Hunter <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Corey Ashford <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2013-11-04perf probe: Fix typoArnaldo Carvalho de Melo1-1/+1
s/tyep/type/g. Cc: Adrian Hunter <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Masami Hiramatsu <[email protected]> Cc: Mike Galbraith <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Stephane Eranian <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2013-11-04s390/mm,tlb: correct tlb flush on page table upgradeMartin Schwidefsky6-51/+21
The IDTE instruction used to flush TLB entries for a specific address space uses the address-space-control element (ASCE) to identify affected TLB entries. The upgrade of a page table adds a new top level page table which changes the ASCE. The TLB entries associated with the old ASCE need to be flushed and the ASCE for the address space needs to be replaced synchronously on all CPUs which currently use it. The concept of a lazy ASCE update with an exception handler is broken. Signed-off-by: Martin Schwidefsky <[email protected]>
2013-11-04GFS2: Use generic list_lru for quotaSteven Whitehouse4-66/+85
By using the generic list_lru code, we can now separate the per sb quota list locking from the lru locking. The lru lock is made into the inner-most lock. As a result of this new lock order, we may occasionally see items on the per-sb quota list which are "dead" so that the two places where we traverse that list are updated to take account of that. As a result of this patch, the gfs2 quota shrinker is now NUMA zone aware, and we are also laying the foundations for further improvments in due course. Signed-off-by: Steven Whitehouse <[email protected]> Signed-off-by: Abhijith Das <[email protected]> Tested-by: Abhijith Das <[email protected]> Cc: Dave Chinner <[email protected]>
2013-11-04GFS2: Rename quota qd_lru_lock qd_lockSteven Whitehouse1-35/+35
This is a straight forward rename which is in preparation for introducing the generic list_lru infrastructure in the following patch. Signed-off-by: Steven Whitehouse <[email protected]> Signed-off-by: Abhijith Das <[email protected]> Tested-by: Abhijith Das <[email protected]>
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