From: "Naveen N. Rao" <naveen.n.rao@linux.vnet.ibm.com>
To: Michael Ellerman <mpe@ellerman.id.au>,
Steven Rostedt <rostedt@goodmis.org>,
Masami Hiramatsu <mhiramat@kernel.org>,
Ingo Molnar <mingo@kernel.org>,
Nicholas Piggin <npiggin@gmail.com>
Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org
Subject: [PATCH v2 1/7] ftrace: Expose flags used for ftrace_replace_code()
Date: Thu, 27 Jun 2019 16:53:49 +0530 [thread overview]
Message-ID: <51cba452b38ae55049bd15b0aeac6060cc1105f2.1561634177.git.naveen.n.rao@linux.vnet.ibm.com> (raw)
In-Reply-To: <cover.1561634177.git.naveen.n.rao@linux.vnet.ibm.com>
Since ftrace_replace_code() is a __weak function and can be overridden,
we need to expose the flags that can be set. So, move the flags enum to
the header file.
Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
---
include/linux/ftrace.h | 5 +++++
kernel/trace/ftrace.c | 5 -----
2 files changed, 5 insertions(+), 5 deletions(-)
diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index 25e2995d4a4c..e97789c95c4e 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -162,6 +162,11 @@ enum {
FTRACE_OPS_FL_TRACE_ARRAY = 1 << 15,
};
+enum {
+ FTRACE_MODIFY_ENABLE_FL = (1 << 0),
+ FTRACE_MODIFY_MAY_SLEEP_FL = (1 << 1),
+};
+
#ifdef CONFIG_DYNAMIC_FTRACE
/* The hash used to know what functions callbacks trace */
struct ftrace_ops_hash {
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 38277af44f5c..5710a6b3edc1 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -75,11 +75,6 @@
#define INIT_OPS_HASH(opsname)
#endif
-enum {
- FTRACE_MODIFY_ENABLE_FL = (1 << 0),
- FTRACE_MODIFY_MAY_SLEEP_FL = (1 << 1),
-};
-
struct ftrace_ops ftrace_list_end __read_mostly = {
.func = ftrace_stub,
.flags = FTRACE_OPS_FL_RECURSION_SAFE | FTRACE_OPS_FL_STUB,
--
2.22.0
next prev parent reply other threads:[~2019-06-27 11:31 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-27 11:23 [PATCH v2 0/7] powerpc/ftrace: Patch out -mprofile-kernel instructions Naveen N. Rao
2019-06-27 11:23 ` Naveen N. Rao [this message]
2022-02-23 12:13 ` [PATCH v2 1/7] ftrace: Expose flags used for ftrace_replace_code() Christophe Leroy
2022-03-02 16:54 ` Naveen N. Rao
2019-06-27 11:23 ` [PATCH v2 2/7] x86/ftrace: Fix use of flags in ftrace_replace_code() Naveen N. Rao
[not found] ` <abc56ad177f370ec423edcfc538d35b418c1808e.1561634177.git.naveen.n.rao@linux.v net.ibm.com>
2019-06-27 11:27 ` Naveen N. Rao
2019-06-27 13:29 ` Steven Rostedt
2019-06-27 14:49 ` Naveen N. Rao
2019-06-27 11:23 ` [PATCH v2 3/7] ftrace: Expose __ftrace_replace_code() Naveen N. Rao
2019-06-27 14:36 ` Steven Rostedt
2019-06-27 11:23 ` [PATCH v2 4/7] powerpc/ftrace: Additionally nop out the preceding mflr with -mprofile-kernel Naveen N. Rao
[not found] ` <841386feda429a1f0d4b7442c3ede1ed91466f92.1561634177.git.naveen.n.rao@linux.v net.ibm.com>
2019-06-27 14:50 ` Naveen N. Rao
2019-06-27 15:08 ` Steven Rostedt
2019-06-27 15:28 ` Naveen N. Rao
2019-06-27 16:13 ` Steven Rostedt
2019-07-01 8:51 ` Naveen N. Rao
2019-06-28 7:01 ` Nicholas Piggin
2019-06-27 11:23 ` [PATCH v2 5/7] ftrace: Update ftrace_location() for powerpc -mprofile-kernel Naveen N. Rao
2019-06-27 11:23 ` [PATCH v2 6/7] kprobes/ftrace: Use ftrace_location() when [dis]arming probes Naveen N. Rao
2019-06-27 11:23 ` [PATCH v2 7/7] powerpc/kprobes: Allow probing on any ftrace address Naveen N. Rao
2019-06-27 14:19 ` Masami Hiramatsu
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