From: Borislav Petkov <bp@amd64.org>
To: <linux-kernel@vger.kernel.org>
Subject: [PATCH 01/21] perf_events: Export buffer handling functions
Date: Thu, 1 Jul 2010 17:55:43 +0200 [thread overview]
Message-ID: <1277999763-20357-2-git-send-email-bp@amd64.org> (raw)
In-Reply-To: <1277999763-20357-1-git-send-email-bp@amd64.org>
From: Borislav Petkov <borislav.petkov@amd.com>
... for other in-kernel users.
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
---
include/linux/perf_event.h | 8 ++++++++
kernel/perf_event.c | 8 ++++----
2 files changed, 12 insertions(+), 4 deletions(-)
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index 63b5aa5..cb242bd 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -1017,6 +1017,10 @@ extern int perf_swevent_get_recursion_context(void);
extern void perf_swevent_put_recursion_context(int rctx);
extern void perf_event_enable(struct perf_event *event);
extern void perf_event_disable(struct perf_event *event);
+extern struct perf_buffer *
+perf_buffer_alloc(int nr_pages, long watermark, int cpu, int flags);
+extern void perf_buffer_put(struct perf_buffer *buffer);
+
#else
static inline void
perf_event_task_sched_in(struct task_struct *task) { }
@@ -1054,6 +1058,10 @@ static inline int perf_swevent_get_recursion_context(void) { return -1; }
static inline void perf_swevent_put_recursion_context(int rctx) { }
static inline void perf_event_enable(struct perf_event *event) { }
static inline void perf_event_disable(struct perf_event *event) { }
+extern struct perf_buffer *
+perf_buffer_alloc(int nr_pages, long watermark, int cpu, int flags) { return NULL; }
+static inline void perf_buffer_put(struct perf_buffer *buffer) {}
+
#endif
#define perf_output_put(handle, x) \
diff --git a/kernel/perf_event.c b/kernel/perf_event.c
index c772a3d..40478af 100644
--- a/kernel/perf_event.c
+++ b/kernel/perf_event.c
@@ -1881,7 +1881,7 @@ static void free_event_rcu(struct rcu_head *head)
}
static void perf_pending_sync(struct perf_event *event);
-static void perf_buffer_put(struct perf_buffer *buffer);
+void perf_buffer_put(struct perf_buffer *buffer);
static void free_event(struct perf_event *event)
{
@@ -2424,7 +2424,7 @@ static void *perf_mmap_alloc_page(int cpu)
return page_address(page);
}
-static struct perf_buffer *
+struct perf_buffer *
perf_buffer_alloc(int nr_pages, long watermark, int cpu, int flags)
{
struct perf_buffer *buffer;
@@ -2541,7 +2541,7 @@ static void perf_buffer_free(struct perf_buffer *buffer)
schedule_work(&buffer->work);
}
-static struct perf_buffer *
+struct perf_buffer *
perf_buffer_alloc(int nr_pages, long watermark, int cpu, int flags)
{
struct perf_buffer *buffer;
@@ -2642,7 +2642,7 @@ static struct perf_buffer *perf_buffer_get(struct perf_event *event)
return buffer;
}
-static void perf_buffer_put(struct perf_buffer *buffer)
+void perf_buffer_put(struct perf_buffer *buffer)
{
if (!atomic_dec_and_test(&buffer->refcount))
return;
--
1.7.1
next prev parent reply other threads:[~2010-07-01 15:54 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-01 15:55 [RFC PATCH 00/21] RAS daemon prototype, v1 Borislav Petkov
2010-07-01 15:55 ` Borislav Petkov [this message]
2010-07-01 15:55 ` [PATCH 02/21] mce: Add persistent events Borislav Petkov
2010-07-01 15:55 ` [PATCH 03/21] perf_events: Add a helper to search for an event in a context Borislav Petkov
2010-07-01 15:55 ` [PATCH 04/21] perf_events: Handle persistent events accordingly Borislav Petkov
2010-07-01 15:55 ` [PATCH 05/21] perf: rewire generic library stuff, p1 Borislav Petkov
2010-07-01 15:55 ` [PATCH 06/21] perf: rewire generic library stuff, p2 Borislav Petkov
2010-07-01 15:55 ` [PATCH 07/21] perf: rewire generic library stuff, p3 Borislav Petkov
2010-07-01 15:55 ` [PATCH 08/21] perf: rewire generic library stuff, p4 Borislav Petkov
2010-07-01 15:55 ` [PATCH 09/21] perf: rewire generic library stuff, p5 Borislav Petkov
2010-07-01 15:55 ` [PATCH 10/21] perf: rewire generic library stuff, p6 Borislav Petkov
2010-07-01 15:55 ` [PATCH 11/21] perf: Export /proc/mounts parser Borislav Petkov
2010-07-01 15:55 ` [PATCH 12/21] perf: Carve out perf bits for general usage, p1 Borislav Petkov
2010-07-01 15:55 ` [PATCH 13/21] perf: Carve out perf bits for general usage, p2 Borislav Petkov
2010-07-01 15:55 ` [PATCH 14/21] perf: Carve out perf bits for general usage, p3 Borislav Petkov
2010-07-01 15:55 ` [PATCH 15/21] perf: Export trace event utils Borislav Petkov
2010-07-06 22:18 ` Steven Rostedt
2010-07-07 7:57 ` Borislav Petkov
2010-07-01 15:55 ` [PATCH 16/21] perf: Add a common misc.c compilation unit Borislav Petkov
2010-07-01 15:55 ` [PATCH 17/21] perf: Carve out mmap helpers for general use Borislav Petkov
2010-07-01 15:56 ` [PATCH 18/21] perf: Split build-id.c Borislav Petkov
2010-07-01 15:56 ` [PATCH 19/21] x86, mce: Notify about corrected events too Borislav Petkov
2010-07-01 15:56 ` [PATCH 20/21] amd64_edac: Remove polling mechanism Borislav Petkov
2010-07-01 15:56 ` [PATCH 21/21] tools, ras: Add a RAS daemon Borislav Petkov
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1277999763-20357-2-git-send-email-bp@amd64.org \
--to=bp@amd64.org \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox