diff options
| author | Andy Lutomirski <luto@amacapital.net> | 2014-10-02 22:16:36 -0700 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2014-10-28 10:51:02 +0100 |
| commit | b438b1ab35507bbccc28d13f0b8286ffcf24019d (patch) | |
| tree | e4dddf4f397c49ad4af54cb88a67441b8406db3f /include | |
| parent | c719f56092add9b3d4192f57c64ce7af11105130 (diff) | |
perf: Fix typos in sample code in the perf_event.h header
struct perf_event_mmap_page has members called "index" and
"cap_user_rdpmc". Spell them correctly in the examples.
Signed-off-by: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-api@vger.kernel.org
Link: http://lkml.kernel.org/r/320ba26391a8123cc16e5f02d24d34bd404332fd.1412313343.git.luto@amacapital.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/uapi/linux/perf_event.h | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/include/uapi/linux/perf_event.h b/include/uapi/linux/perf_event.h index 9269de25487..9d845404d87 100644 --- a/include/uapi/linux/perf_event.h +++ b/include/uapi/linux/perf_event.h @@ -364,7 +364,7 @@ struct perf_event_mmap_page { /* * Bits needed to read the hw events in user-space. * - * u32 seq, time_mult, time_shift, idx, width; + * u32 seq, time_mult, time_shift, index, width; * u64 count, enabled, running; * u64 cyc, time_offset; * s64 pmc = 0; @@ -383,11 +383,11 @@ struct perf_event_mmap_page { * time_shift = pc->time_shift; * } * - * idx = pc->index; + * index = pc->index; * count = pc->offset; - * if (pc->cap_usr_rdpmc && idx) { + * if (pc->cap_user_rdpmc && index) { * width = pc->pmc_width; - * pmc = rdpmc(idx - 1); + * pmc = rdpmc(index - 1); * } * * barrier(); @@ -415,7 +415,7 @@ struct perf_event_mmap_page { }; /* - * If cap_usr_rdpmc this field provides the bit-width of the value + * If cap_user_rdpmc this field provides the bit-width of the value * read using the rdpmc() or equivalent instruction. This can be used * to sign extend the result like: * @@ -439,10 +439,10 @@ struct perf_event_mmap_page { * * Where time_offset,time_mult,time_shift and cyc are read in the * seqcount loop described above. This delta can then be added to - * enabled and possible running (if idx), improving the scaling: + * enabled and possible running (if index), improving the scaling: * * enabled += delta; - * if (idx) + * if (index) * running += delta; * * quot = count / running; |