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Subject[[PATCH v6 04/10] perf: Rename perf_event_read_{one,group}, perf_read_hw
Date
From: "Peter Zijlstra (Intel)" <peterz@infradead.org>

In order to free up the perf_event_read_group() name:

s/perf_event_read_\(one\|group\)/perf_read_\1/g
s/perf_read_hw/__perf_read/g

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
---
kernel/events/core.c | 14 +++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/kernel/events/core.c b/kernel/events/core.c
index 01ede6b..be39e63 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -3742,7 +3742,7 @@ static void put_event(struct perf_event *event)
* see the comment there.
*
* 2) there is a lock-inversion with mmap_sem through
- * perf_event_read_group(), which takes faults while
+ * perf_read_group(), which takes faults while
* holding ctx->mutex, however this is called after
* the last filedesc died, so there is no possibility
* to trigger the AB-BA case.
@@ -3837,7 +3837,7 @@ u64 perf_event_read_value(struct perf_event *event, u64 *enabled, u64 *running)
}
EXPORT_SYMBOL_GPL(perf_event_read_value);

-static int perf_event_read_group(struct perf_event *event,
+static int perf_read_group(struct perf_event *event,
u64 read_format, char __user *buf)
{
struct perf_event *leader = event->group_leader, *sub;
@@ -3885,7 +3885,7 @@ static int perf_event_read_group(struct perf_event *event,
return ret;
}

-static int perf_event_read_one(struct perf_event *event,
+static int perf_read_one(struct perf_event *event,
u64 read_format, char __user *buf)
{
u64 enabled, running;
@@ -3923,7 +3923,7 @@ static bool is_event_hup(struct perf_event *event)
* Read the performance event - simple non blocking version for now
*/
static ssize_t
-perf_read_hw(struct perf_event *event, char __user *buf, size_t count)
+__perf_read(struct perf_event *event, char __user *buf, size_t count)
{
u64 read_format = event->attr.read_format;
int ret;
@@ -3941,9 +3941,9 @@ perf_read_hw(struct perf_event *event, char __user *buf, size_t count)

WARN_ON_ONCE(event->ctx->parent_ctx);
if (read_format & PERF_FORMAT_GROUP)
- ret = perf_event_read_group(event, read_format, buf);
+ ret = perf_read_group(event, read_format, buf);
else
- ret = perf_event_read_one(event, read_format, buf);
+ ret = perf_read_one(event, read_format, buf);

return ret;
}
@@ -3956,7 +3956,7 @@ perf_read(struct file *file, char __user *buf, size_t count, loff_t *ppos)
int ret;

ctx = perf_event_ctx_lock(event);
- ret = perf_read_hw(event, buf, count);
+ ret = __perf_read(event, buf, count);
perf_event_ctx_unlock(event, ctx);

return ret;
--
1.7.9.5


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