kernel/tools/perf/util/util.c, branch linux-5.2.y

perf tools: Add perf_exe() helper to find perf binary

2019-02-25T13:58:28Z

Also convert one existing user. Signed-off-by: Andi Kleen Acked-by: Jiri Olsa Cc: Namhyung Kim Cc: Stephane Eranian Link: http://lkml.kernel.org/r/20190224153722.27020-9-andi@firstfloor.org Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Add rm_rf_perf_data function

2019-02-25T13:33:51Z

To remove perf.data including the directory, with checking on expected files and no other directories inside. Signed-off-by: Jiri Olsa Suggested-by: Andi Kleen Cc: Adrian Hunter Cc: Alexander Shishkin Cc: Alexey Budankov Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lkml.kernel.org/r/20190224190656.30163-4-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Add pattern name checking to rm_rf

2019-02-25T13:33:04Z

Add pattern argument to rm_rf_depth() (and rename it to rm_rf_depth_pat()) to specify the name pattern files need to match inside the directory. The function fails if we find different file to remove. Signed-off-by: Jiri Olsa Cc: Adrian Hunter Cc: Alexander Shishkin Cc: Alexey Budankov Cc: Andi Kleen Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lkml.kernel.org/r/20190224190656.30163-3-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Add depth checking to rm_rf

2019-02-25T13:32:11Z

Adding depth argument to rm_rf (and renaming it to rm_rf_depth) to specify the depth we will go searching for files to remove. It will be used to specify single depth for perf.data directory removal in following patch. Signed-off-by: Jiri Olsa Cc: Adrian Hunter Cc: Alexander Shishkin Cc: Alexey Budankov Cc: Andi Kleen Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lkml.kernel.org/r/20190224190656.30163-2-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Make rm_rf() remove single file

2019-02-20T20:09:28Z

Let rm_rf() remove a file if it's provided by path, not just directories. Signed-off-by: Jiri Olsa Cc: Alexander Shishkin Cc: Alexey Budankov Cc: Andi Kleen Cc: Namhyung Kim Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/20190220122800.864-7-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf namespaces: Remove namespaces.h from .h headers

2019-01-25T14:12:09Z

There we need just forward declarations, so remove it and add it just on the .c files that actually touch the struct definitions. Cc: Adrian Hunter Cc: Jiri Olsa Cc: Namhyung Kim Link: https://lkml.kernel.org/n/tip-wsjxzt99p83jubt6hu0med0f@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf util: Make copyfile_offset() global

2018-09-19T13:25:12Z

It will be used outside of util object in following patches. Committer note: We need to have the header with the definition for loff_t in util.h since we now use it in the copyfile_offset() signature. Also move that prototype closer to the other copyfile_ prefixed functions. Signed-off-by: Jiri Olsa Cc: Alexander Shishkin Cc: Alexey Budankov Cc: Andi Kleen Cc: Namhyung Kim Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/20180913125450.21342-10-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf tools: No need to unconditionally read the max_stack sysctls

2018-05-17T19:31:32Z

Let tools that need to have those variables with the sysctl current values use a function that will read them. Cc: Adrian Hunter Cc: David Ahern Cc: Jiri Olsa Cc: Namhyung Kim Cc: Wang Nan Link: https://lkml.kernel.org/n/tip-1ljj3oeo5kpt2n1icfd9vowe@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Read the cache line size lazily

2018-05-17T19:03:34Z

It is not read as commonly as 'page_size', so it makes sense to read it lazily, caching its value when it is first read. Less files open unconditionally at startup. Cc: Adrian Hunter Cc: David Ahern Cc: Jiri Olsa Cc: Namhyung Kim Cc: Wang Nan Link: https://lkml.kernel.org/n/tip-35xhrq91u94uc1djtclek1ie@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Substitute yet another strtoull()

2018-02-15T12:57:19Z

Instead of home grown function let's use what library provides us. Signed-off-by: Andriy Shevchenko Acked-by: Jiri Olsa Link: http://lkml.kernel.org/r/20180129130359.1490-1-andriy.shevchenko@linux.intel.com Signed-off-by: Arnaldo Carvalho de Melo