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perf: ftrace: Add filter support for option -F/--funcs
Same as 'perf probe -F', this patch adds filter support for the ftrace subcommand option '-F, --funcs <[FILTER]>'. Here is an example that only lists functions which start with 'vfs_': $ sudo perf ftrace -F vfs_* vfs_fadvise vfs_fallocate vfs_truncate vfs_open vfs_setpos vfs_llseek vfs_readf vfs_writef ... Suggested-by: Arnaldo Carvalho de Melo <[email protected]> Signed-off-by: Changbin Du <[email protected]> Tested-by: Arnaldo Carvalho de Melo <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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