perf fs: Add procfs support (a9862418) · Commits · 戴 / test

Adding procfs support into fs class. The interface function: const char *procfs__mountpoint(void); provides existing mountpoint path for procfs. Signed-off-by:

Jiri Olsa <jolsa@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1383660887-1734-3-git-send-email-jolsa@redhat.com [ Fixup namespace ] Signed-off-by:

Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/util/fs.c

+14 −2

Original line number	Diff line number	Diff line
		@@ -9,6 +9,11 @@ static const char * const sysfs__fs_known_mountpoints[] = {
		0,
		};

		static const char * const procfs__known_mountpoints[] = {
		"/proc",
		0,
		};

		struct fs {
		const char *name;
		const char * const *mounts;
		@@ -19,6 +24,7 @@ struct fs {

		enum {
		FS__SYSFS = 0,
		FS__PROCFS = 1,
		};

		static struct fs fs__entries[] = {
		@@ -27,6 +33,11 @@ static struct fs fs__entries[] = {
		.mounts = sysfs__fs_known_mountpoints,
		.magic = SYSFS_MAGIC,
		},
		[FS__PROCFS] = {
		.name = "proc",
		.mounts = procfs__known_mountpoints,
		.magic = PROC_SUPER_MAGIC,
		},
		};

		static bool fs__read_mounts(struct fs *fs)
		@@ -105,3 +116,4 @@ const char *name##__mountpoint(void) \
		}

		FS__MOUNTPOINT(sysfs, FS__SYSFS);
		FS__MOUNTPOINT(procfs, FS__PROCFS);

tools/perf/util/fs.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -2,5 +2,6 @@
		#define __PERF_FS

		const char *sysfs__mountpoint(void);
		const char *procfs__mountpoint(void);

		#endif /* __PERF_FS */

tools/perf/util/include/linux/magic.h

+4 −0

Original line number	Diff line number	Diff line
		@@ -9,4 +9,8 @@
		#define SYSFS_MAGIC 0x62656572
		#endif

		#ifndef PROC_SUPER_MAGIC
		#define PROC_SUPER_MAGIC 0x9fa0
		#endif

		#endif

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