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From: Steven Rostedt <rostedt@goodmis.org>
To: linux-kernel@vger.kernel.org
Cc: Ingo Molnar <mingo@kernel.org>,
	Frederic Weisbecker <fweisbec@gmail.com>,
	Andrew Morton <akpm@linux-foundation.org>
Subject: [for-next][PATCH 11/13] ftrace: Use the ftrace_addr helper functions to find the ftrace_addr
Date: Mon, 12 May 2014 11:11:41 -0400	[thread overview]
Message-ID: <20140512151204.308501183@goodmis.org> (raw)
In-Reply-To: 20140512151130.345864843@goodmis.org

[-- Attachment #1: 0011-ftrace-Use-the-ftrace_addr-helper-functions-to-find-.patch --]
[-- Type: text/plain, Size: 1518 bytes --]

From: "Steven Rostedt (Red Hat)" <rostedt@goodmis.org>

With the moving of the functions that determine what the mcount call site
should be replaced with into the generic code, there is a few places
in the generic code that can use them instead of hard coding it as it
does.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 kernel/trace/ftrace.c | 15 +++++----------
 1 file changed, 5 insertions(+), 10 deletions(-)

diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index e825fde..52c2b53 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -1798,12 +1798,12 @@ __ftrace_replace_code(struct dyn_ftrace *rec, int enable)
 	unsigned long ftrace_addr;
 	int ret;
 
-	ret = ftrace_update_record(rec, enable);
+	ftrace_addr = ftrace_get_addr_new(rec);
 
-	if (rec->flags & FTRACE_FL_REGS)
-		ftrace_addr = (unsigned long)FTRACE_REGS_ADDR;
-	else
-		ftrace_addr = (unsigned long)FTRACE_ADDR;
+	/* This needs to be done before we call ftrace_update_record */
+	ftrace_old_addr = ftrace_get_addr_curr(rec);
+
+	ret = ftrace_update_record(rec, enable);
 
 	switch (ret) {
 	case FTRACE_UPDATE_IGNORE:
@@ -1817,11 +1817,6 @@ __ftrace_replace_code(struct dyn_ftrace *rec, int enable)
 
 	case FTRACE_UPDATE_MODIFY_CALL_REGS:
 	case FTRACE_UPDATE_MODIFY_CALL:
-		if (rec->flags & FTRACE_FL_REGS)
-			ftrace_old_addr = (unsigned long)FTRACE_ADDR;
-		else
-			ftrace_old_addr = (unsigned long)FTRACE_REGS_ADDR;
-
 		return ftrace_modify_call(rec, ftrace_old_addr, ftrace_addr);
 	}
 
-- 
1.8.5.3



  parent reply	other threads:[~2014-05-12 15:13 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-05-12 15:11 [for-next][PATCH 00/13] tracing: More updates for 3.16 Steven Rostedt
2014-05-12 15:11 ` [for-next][PATCH 01/13] ftrace: Have function graph tracer use global_ops for filtering Steven Rostedt
2014-05-12 15:11 ` [for-next][PATCH 02/13] tracing: Remove myself as a tracing maintainer Steven Rostedt
2014-05-12 15:11 ` [for-next][PATCH 03/13] tracing: Replace __get_cpu_var uses with this_cpu_ptr Steven Rostedt
2014-05-12 15:11 ` [for-next][PATCH 04/13] tracing: Add trace_<tracepoint>_enabled() function Steven Rostedt
2014-05-12 15:11 ` [for-next][PATCH 05/13] tracing: Add __bitmask() macro to trace events to cpumasks and other bitmasks Steven Rostedt
2014-05-12 15:11 ` [for-next][PATCH 06/13] ftrace: Remove boolean of hash_enable and hash_disable Steven Rostedt
2014-05-12 15:11 ` [for-next][PATCH 07/13] ftrace: Write in missing comment from a very old commit Steven Rostedt
2014-05-12 15:11 ` [for-next][PATCH 08/13] ftrace: Always inline ftrace_hash_empty() helper function Steven Rostedt
2014-05-12 15:11 ` [for-next][PATCH 09/13] ftrace/x86: Get the current mcount addr for add_breakpoint() Steven Rostedt
2014-05-12 15:11 ` [for-next][PATCH 10/13] ftrace: Make get_ftrace_addr() and get_ftrace_addr_old() global Steven Rostedt
2014-05-12 15:11 ` Steven Rostedt [this message]
2014-05-12 15:11 ` [for-next][PATCH 12/13] ftrace: Remove FTRACE_UPDATE_MODIFY_CALL_REGS flag Steven Rostedt
2014-05-12 15:11 ` [for-next][PATCH 13/13] ftrace/x86: Move the mcount/fentry code out of entry_64.S Steven Rostedt

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