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perf/urgent fix: 

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 - The values of _SC_NPROCESSORS_CONF and _SC_NPROCESSORS_ONLN (sysconf(3)) were
   being read from perf.data files in the inverse order they are written, fix it.
   (Arnaldo Carvalho de Melo)
 
 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-urgent-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent

Pull perf/urgent fix from Arnaldo Carvalho de Melo:

  - The values of _SC_NPROCESSORS_CONF and _SC_NPROCESSORS_ONLN (sysconf(3)) were
    being read from perf.data files in the inverse order they are written, fix it.
    (Arnaldo Carvalho de Melo)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Ingo Molnar 2015-09-14 09:29:22 +02:00
parent ebfb4988f0 caa470475d
commit 91a4dc9f71
1 changed files with 2 additions and 2 deletions
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4
tools/perf/util/header.c
View File

@ -1438,7 +1438,7 @@ static int process_nrcpus(struct perf_file_section *section __maybe_unused,
if (ph->needs_swap)
nr = bswap_32(nr);
ph->env.nr_cpus_online = nr;
ph->env.nr_cpus_avail = nr;
ret = readn(fd, &nr, sizeof(nr));
if (ret != sizeof(nr))
@ -1447,7 +1447,7 @@ static int process_nrcpus(struct perf_file_section *section __maybe_unused,
if (ph->needs_swap)
nr = bswap_32(nr);
ph->env.nr_cpus_avail = nr;
ph->env.nr_cpus_online = nr;
return 0;
}