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-rw-r--r--tools/perf/util/mmap.c76
1 files changed, 1 insertions, 75 deletions
diff --git a/tools/perf/util/mmap.c b/tools/perf/util/mmap.c
index d85e73fc82e2..868c0b0e909c 100644
--- a/tools/perf/util/mmap.c
+++ b/tools/perf/util/mmap.c
@@ -289,80 +289,6 @@ static void perf_mmap__aio_munmap(struct perf_mmap *map)
zfree(&map->aio.cblocks);
zfree(&map->aio.aiocb);
}
-
-int perf_mmap__aio_push(struct perf_mmap *md, void *to, int idx,
- int push(void *to, struct aiocb *cblock, void *buf, size_t size, off_t off),
- off_t *off)
-{
- u64 head = perf_mmap__read_head(md);
- unsigned char *data = md->base + page_size;
- unsigned long size, size0 = 0;
- void *buf;
- int rc = 0;
-
- rc = perf_mmap__read_init(md);
- if (rc < 0)
- return (rc == -EAGAIN) ? 0 : -1;
-
- /*
- * md->base data is copied into md->data[idx] buffer to
- * release space in the kernel buffer as fast as possible,
- * thru perf_mmap__consume() below.
- *
- * That lets the kernel to proceed with storing more
- * profiling data into the kernel buffer earlier than other
- * per-cpu kernel buffers are handled.
- *
- * Coping can be done in two steps in case the chunk of
- * profiling data crosses the upper bound of the kernel buffer.
- * In this case we first move part of data from md->start
- * till the upper bound and then the reminder from the
- * beginning of the kernel buffer till the end of
- * the data chunk.
- */
-
- size = md->end - md->start;
-
- if ((md->start & md->mask) + size != (md->end & md->mask)) {
- buf = &data[md->start & md->mask];
- size = md->mask + 1 - (md->start & md->mask);
- md->start += size;
- memcpy(md->aio.data[idx], buf, size);
- size0 = size;
- }
-
- buf = &data[md->start & md->mask];
- size = md->end - md->start;
- md->start += size;
- memcpy(md->aio.data[idx] + size0, buf, size);
-
- /*
- * Increment md->refcount to guard md->data[idx] buffer
- * from premature deallocation because md object can be
- * released earlier than aio write request started
- * on mmap->data[idx] is complete.
- *
- * perf_mmap__put() is done at record__aio_complete()
- * after started request completion.
- */
- perf_mmap__get(md);
-
- md->prev = head;
- perf_mmap__consume(md);
-
- rc = push(to, &md->aio.cblocks[idx], md->aio.data[idx], size0 + size, *off);
- if (!rc) {
- *off += size0 + size;
- } else {
- /*
- * Decrement md->refcount back if aio write
- * operation failed to start.
- */
- perf_mmap__put(md);
- }
-
- return rc;
-}
#else /* !HAVE_AIO_SUPPORT */
static int perf_mmap__aio_enabled(struct perf_mmap *map __maybe_unused)
{
@@ -566,7 +492,7 @@ int perf_mmap__push(struct perf_mmap *md, void *to,
rc = perf_mmap__read_init(md);
if (rc < 0)
- return (rc == -EAGAIN) ? 0 : -1;
+ return (rc == -EAGAIN) ? 1 : -1;
size = md->end - md->start;