Wang Nan b6b85dad30 perf evlist: Rename variable in perf_mmap__read() ... In perf_mmap__read(), give better names to pointers. Original name 'old' and 'head' directly related to pointers in ring buffer control page. For backward ring buffer, the meaning of 'head' point is not 'the first byte of free space', but 'the first byte of the last record'. To reduce confusion, rename 'old' to 'start', 'head' to 'end'. 'start' -> 'end' is the direction the records should be read from. Change parameter order. Change 'overwrite' to 'check_messup'. When reading from 'head', no need to check messup for for backward ring buffer. Signed-off-by: Wang Nan <wangnan0@huawei.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Zefan Li <lizefan@huawei.com> Cc: pi3orama@163.com Link: http://lkml.kernel.org/r/1461723563-67451-3-git-send-email-wangnan0@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>		2016-05-05 21:04:04 -03:00
..
arch	perf symbols: Fix kallsyms perf test on ppc64le	2016-05-05 21:04:03 -03:00
bench	perf bench: Remove one more die() call	2016-04-26 13:28:40 -03:00
config	perf tools: Build syscall table .c header from kernel's syscall_64.tbl	2016-04-08 09:58:14 -03:00
Documentation	perf record: Disable buildid cache options by default in switch output mode	2016-04-28 09:58:59 -03:00
jvmti	perf jit: Add support for using TSC as a timestamp	2016-04-01 18:42:55 -03:00
python	perf python: Support the PERF_RECORD_SWITCH event	2015-10-07 19:41:50 -03:00
scripts	perf script: Fix postgresql ubuntu install instructions	2016-04-19 12:36:54 -03:00
tests	perf hists: Move sort__need_collapse into struct perf_hpp_list	2016-05-05 21:03:58 -03:00
trace	perf trace: Move msg_flags beautifier to tools/perf/trace/beauty/	2016-04-28 09:58:59 -03:00
ui	perf hists: Move sort__has_comm into struct perf_hpp_list	2016-05-05 21:04:02 -03:00
util	perf evlist: Rename variable in perf_mmap__read()	2016-05-05 21:04:04 -03:00
.gitignore	perf tools: Add Intel PT instruction decoder	2015-08-17 11:11:36 -03:00
Build	perf tools: Set and pass DOCDIR to builtin-report.c	2016-01-12 12:42:07 -03:00
builtin-annotate.c	perf machine: Rename perf_event__preprocess_sample to machine__resolve	2016-03-23 12:03:08 -03:00
builtin-bench.c	perf subcmd: Create subcmd library	2015-12-17 14:27:14 -03:00
builtin-buildid-cache.c	perf tools: Move timestamp creation to util	2016-01-29 17:30:06 -03:00
builtin-buildid-list.c	perf subcmd: Create subcmd library	2015-12-17 14:27:14 -03:00
builtin-config.c	perf config: Make show_config() use perf_config_set	2016-04-14 09:15:47 -03:00
builtin-data.c	perf subcmd: Create subcmd library	2015-12-17 14:27:14 -03:00
builtin-diff.c	perf hists: Move sort__need_collapse into struct perf_hpp_list	2016-05-05 21:03:58 -03:00
builtin-evlist.c	perf evlist: Add --trace-fields option to show trace fields	2016-01-08 14:23:02 -03:00
builtin-help.c	perf help: Use asprintf instead of adhoc equivalents	2016-03-23 16:36:07 -03:00
builtin-inject.c	perf tools: Add time conversion event	2016-03-31 10:52:24 -03:00
builtin-kmem.c	perf callchain: Start moving away from global per thread cursors	2016-04-14 14:48:07 -03:00
builtin-kvm.c	perf evsel: Do not use globals in config()	2016-04-11 22:18:20 -03:00
builtin-list.c	perf subcmd: Create subcmd library	2015-12-17 14:27:14 -03:00
builtin-lock.c	perf subcmd: Create subcmd library	2015-12-17 14:27:14 -03:00
builtin-mem.c	perf mem: Add -U/-K (--all-user/--all-kernel) options	2016-03-30 11:14:07 -03:00
builtin-probe.c	perf subcmd: Create subcmd library	2015-12-17 14:27:14 -03:00
builtin-record.c	perf record: Generate tracking events for process forked by perf	2016-04-28 09:58:59 -03:00
builtin-report.c	perf hists: Move sort__has_parent into struct perf_hpp_list	2016-05-05 21:03:59 -03:00
builtin-sched.c	perf sched map: Display only given cpus	2016-04-13 10:11:52 -03:00
builtin-script.c	perf tools: Set the maximum allowed stack from /proc/sys/kernel/perf_event_max_stack	2016-04-27 10:29:07 -03:00
builtin-stat.c	perf stat: Add --metric-only support for -A	2016-03-10 16:50:47 -03:00
builtin-timechart.c	perf machine: Rename perf_event__preprocess_sample to machine__resolve	2016-03-23 12:03:08 -03:00
builtin-top.c	perf hists: Move sort__has_socket into struct perf_hpp_list	2016-05-05 21:04:01 -03:00
builtin-trace.c	perf trace: Do not show the runtime_ms for a thread when not collecting it	2016-05-05 21:03:57 -03:00
builtin-version.c	perf tools: Move cmd_version() to builtin-version.c	2015-12-09 13:42:03 -03:00
builtin.h	perf tools: Remove needless 'extern' from function prototypes	2016-03-23 15:06:35 -03:00
command-list.txt	perf tools: Do not show trace command if it's not compiled in	2016-01-08 12:46:17 -03:00
CREDITS
design.txt	perf tools: Update some code references in design.txt	2014-03-18 18:17:06 -03:00
Makefile	perf build tests: Do parallell builds with 'build-test'	2016-02-04 15:57:00 -03:00
Makefile.perf	perf tools: Build syscall table .c header from kernel's syscall_64.tbl	2016-04-08 09:58:14 -03:00
MANIFEST	perf bench: Fix detached tarball building due to missing 'perf bench memcpy' headers	2016-03-24 12:28:57 -03:00
perf-archive.sh
perf-completion.sh	perf tools: Avoid confusion with preloaded bash function for perf bash completion	2015-03-19 13:53:27 -03:00
perf-read-vdso.c	perf tools: Build programs to copy 32-bit compatibility	2014-10-29 10:32:48 -02:00
perf-sys.h	perf tools: Move generic barriers out of perf-sys.h	2015-05-08 16:05:08 -03:00
perf-with-kcore.sh	perf tools: Fix perf-with-kcore handling of arguments containing spaces	2015-08-06 16:48:27 -03:00
perf.c	perf tools: Set the maximum allowed stack from /proc/sys/kernel/perf_event_max_stack	2016-04-27 10:29:07 -03:00
perf.h	perf tools: Ditch record_opts.callgraph_set	2016-04-18 12:26:27 -03:00