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Date: Mon, 4 Nov 2013 12:06:12 +0100 From: Jiri Olsa <jolsa@...hat.com> To: linux-kernel@...r.kernel.org Cc: Jiri Olsa <jolsa@...hat.com>, Adrian Hunter <adrian.hunter@...el.com>, Corey Ashford <cjashfor@...ux.vnet.ibm.com>, David Ahern <dsahern@...il.com>, Frederic Weisbecker <fweisbec@...il.com>, Ingo Molnar <mingo@...e.hu>, Namhyung Kim <namhyung@...nel.org>, Paul Mackerras <paulus@...ba.org>, Peter Zijlstra <a.p.zijlstra@...llo.nl>, Arnaldo Carvalho de Melo <acme@...hat.com>, Joe Mario <jmario@...hat.com>, Don Zickus <dzickus@...hat.com> Subject: [PATCH 2/3] perf tools: Add procfs support into fs object Adding procfs support into fs object. The interface function: const char *procfs_find_mountpoint(void); provides valid mountpoint path for procfs. Signed-off-by: Jiri Olsa <jolsa@...hat.com> Cc: Adrian Hunter <adrian.hunter@...el.com> Cc: Corey Ashford <cjashfor@...ux.vnet.ibm.com> Cc: David Ahern <dsahern@...il.com> Cc: Frederic Weisbecker <fweisbec@...il.com> Cc: Ingo Molnar <mingo@...e.hu> Cc: Namhyung Kim <namhyung@...nel.org> Cc: Paul Mackerras <paulus@...ba.org> Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl> Cc: Arnaldo Carvalho de Melo <acme@...hat.com> Cc: Joe Mario <jmario@...hat.com> Cc: Don Zickus <dzickus@...hat.com> --- tools/perf/util/fs.c | 16 ++++++++++++++-- tools/perf/util/fs.h | 1 + tools/perf/util/include/linux/magic.h | 4 ++++ 3 files changed, 19 insertions(+), 2 deletions(-) diff --git a/tools/perf/util/fs.c b/tools/perf/util/fs.c index 346669a..37b18b7 100644 --- a/tools/perf/util/fs.c +++ b/tools/perf/util/fs.c @@ -9,6 +9,11 @@ static const char * const sysfs_known_mountpoints[] = { 0, }; +static const char * const procfs_known_mountpoints[] = { + "/proc", + 0, +}; + struct perf_fs { const char *name; const char * const *mounts; @@ -18,7 +23,8 @@ struct perf_fs { }; enum { - FS_SYSFS = 0, + FS_SYSFS = 0, + FS_PROCFS = 1, }; static struct perf_fs fss[] = { @@ -27,6 +33,11 @@ static struct perf_fs fss[] = { .mounts = sysfs_known_mountpoints, .magic = SYSFS_MAGIC, }, + [FS_PROCFS] = { + .name = "proc", + .mounts = procfs_known_mountpoints, + .magic = PROC_SUPER_MAGIC, + }, }; static bool read_mounts(struct perf_fs *fs) @@ -104,4 +115,5 @@ const char *name##_find_mountpoint(void) \ return find_mountpoint(idx); \ } -FIND_MOUNTPOINT(sysfs, FS_SYSFS); +FIND_MOUNTPOINT(sysfs, FS_SYSFS); +FIND_MOUNTPOINT(procfs, FS_PROCFS); diff --git a/tools/perf/util/fs.h b/tools/perf/util/fs.h index 082edbd..bc6556f 100644 --- a/tools/perf/util/fs.h +++ b/tools/perf/util/fs.h @@ -2,5 +2,6 @@ #define __PERF_FS const char *sysfs_find_mountpoint(void); +const char *procfs_find_mountpoint(void); #endif /* __PERF_FS */ diff --git a/tools/perf/util/include/linux/magic.h b/tools/perf/util/include/linux/magic.h index 58b64ed..07d63cf 100644 --- a/tools/perf/util/include/linux/magic.h +++ b/tools/perf/util/include/linux/magic.h @@ -9,4 +9,8 @@ #define SYSFS_MAGIC 0x62656572 #endif +#ifndef PROC_SUPER_MAGIC +#define PROC_SUPER_MAGIC 0x9fa0 +#endif + #endif -- 1.7.11.7 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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