From: Steven Rostedt <rostedt@goodmis.org>
To: linux-trace-devel@vger.kernel.org
Subject: [PATCH 13/38] trace-cmd: Merge msg_do_write_check() into msg_write()
Date: Wed, 03 Jan 2018 12:52:15 -0500 [thread overview]
Message-ID: <20180103175336.700364408@goodmis.org> (raw)
In-Reply-To: 20180103175202.044283643@goodmis.org
[-- Attachment #1: 0013-trace-cmd-Merge-msg_do_write_check-into-msg_write.patch --]
[-- Type: text/plain, Size: 2076 bytes --]
From: "Steven Rostedt (Red Hat)" <rostedt@goodmis.org>
msg_do_write_check() is the only caller of msg_write(). They are small
enough not to be two separate functions. As msg_write() is a easier name,
merge msg_do_write_check() into msg_write() and have all the callers of
msg_do_write_check() call msg_write() instead.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
trace-msg.c | 29 ++++++++++-------------------
1 file changed, 10 insertions(+), 19 deletions(-)
diff --git a/trace-msg.c b/trace-msg.c
index 2583660a7496..943eaa5bf15c 100644
--- a/trace-msg.c
+++ b/trace-msg.c
@@ -139,23 +139,11 @@ struct tracecmd_msg {
struct tracecmd_msg *errmsg;
-static int msg_write(int fd, struct tracecmd_msg *msg, int size)
-{
- int ret;
-
- ret = __do_write_check(fd, msg, size);
- if (ret < 0)
- return ret;
- if (ntohl(msg->hdr.size) <= size)
- return 0;
- return __do_write_check(fd, msg->buf, ntohl(msg->hdr.size) - size);
-}
-
-static ssize_t msg_do_write_check(int fd, struct tracecmd_msg *msg)
+static int msg_write(int fd, struct tracecmd_msg *msg)
{
+ int cmd = ntohl(msg->hdr.cmd);
int size;
int ret;
- int cmd = ntohl(msg->hdr.cmd);
if (cmd > MSG_FINMETA)
return -EINVAL;
@@ -164,9 +152,12 @@ static ssize_t msg_do_write_check(int fd, struct tracecmd_msg *msg)
if (!size)
size = ntohl(msg->hdr.size);
- ret = msg_write(fd, msg, size);
-
- return ret;
+ ret = __do_write_check(fd, msg, size);
+ if (ret < 0)
+ return ret;
+ if (ntohl(msg->hdr.size) <= size)
+ return 0;
+ return __do_write_check(fd, msg->buf, ntohl(msg->hdr.size) - size);
}
enum msg_opt_command {
@@ -275,7 +266,7 @@ static int tracecmd_msg_send(int fd, struct tracecmd_msg *msg)
{
int ret = 0;
- ret = msg_do_write_check(fd, msg);
+ ret = msg_write(fd, msg);
if (ret < 0)
ret = -ECOMM;
@@ -616,7 +607,7 @@ int tracecmd_msg_metadata_send(int fd, const char *buf, int size)
memcpy(msg.buf, buf+count, n);
n = 0;
}
- ret = msg_do_write_check(fd, &msg);
+ ret = msg_write(fd, &msg);
if (ret < 0)
break;
} while (n);
--
2.13.2
next prev parent reply other threads:[~2018-01-03 17:53 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-03 17:52 [PATCH 00/38] trace-cmd: Simplify the msg handling Steven Rostedt
2018-01-03 17:52 ` [PATCH 01/38] trace-cmd recorder: Check if pipe_size was modified by fcntl(F_GETPIPE_SZ) Steven Rostedt
2018-01-03 17:52 ` [PATCH 02/38] pevent: Simplify pointer print logic and fix %pF Steven Rostedt
2018-01-03 17:52 ` [PATCH 03/38] pevent: Handle new pointer processing of bprint strings Steven Rostedt
2018-01-03 17:52 ` [PATCH 04/38] trace-cmd record: Fix clearing out the ctx->instance when used in for_all_instances() Steven Rostedt
2018-01-03 17:52 ` [PATCH 05/38] trace-cmd: Remove the creating of msg out of tracecmd_msg_send() Steven Rostedt
2018-01-03 17:52 ` [PATCH 06/38] trace-cmd: Move tracecmd_msg_send_and_wait_for_msg() into its only user Steven Rostedt
2018-01-03 17:52 ` [PATCH 07/38] trace-cmd: Turn tracecmd_msg data into an anonymous union Steven Rostedt
2018-01-03 17:52 ` [PATCH 08/38] trace-cmd: Remove unused structure tracecmd_msg_error Steven Rostedt
2018-01-03 17:52 ` [PATCH 09/38] trace-cmd: Move size and cmd in tracecmd_msg into its own header struct Steven Rostedt
2018-01-03 17:52 ` [PATCH 10/38] trace-cmd: Move the tracecmd_msg pointers into their own union Steven Rostedt
2018-01-03 17:52 ` [PATCH 11/38] trace-cmd: Just use the buf field for sending pointers Steven Rostedt
2018-01-03 17:52 ` [PATCH 12/38] trace-cmd: Use an array to map msg types and min sizes Steven Rostedt
2018-01-03 17:52 ` Steven Rostedt [this message]
2018-01-03 17:52 ` [PATCH 14/38] trace-cmd: Simplify msg_free() by using " Steven Rostedt
2018-01-03 17:52 ` [PATCH 15/38] trace-cmd: Add tracecmd_msg_init() helper function Steven Rostedt
2018-01-03 17:52 ` [PATCH 16/38] trace-cmd: Remove mulitplexer tracecmd_msg_create() Steven Rostedt
2018-01-03 17:52 ` [PATCH 17/38] trace-cmd: Simplify msg_read_extra() Steven Rostedt
2018-01-03 17:52 ` [PATCH 18/38] trace-cmd: Have msg_free() zero out msg contents Steven Rostedt
2018-01-03 17:52 ` [PATCH 19/38] trace-cmd: Verify RINIT was received after TINIT msg sent Steven Rostedt
2018-01-03 17:52 ` [PATCH 20/38] trace-cmd: Make send_metadata a flag in the output handle Steven Rostedt
2018-01-03 17:52 ` [PATCH 21/38] trace-cmd: Pass cpu count and port array to make_rinit() Steven Rostedt
2018-01-03 17:52 ` [PATCH 22/38] trace-cmd: Pass cpu_count instead of having it as a global Steven Rostedt
2018-01-03 17:52 ` [PATCH 23/38] trace-cmd: Pass in client_ports instead of using a global variable Steven Rostedt
2018-01-03 17:52 ` [PATCH 24/38] trace-cmd msg: Add debug prints of messages sent and received Steven Rostedt
2018-01-03 17:52 ` [PATCH 25/38] trace-cmd msg: Move the saved closing fd to the caller Steven Rostedt
2018-01-03 17:52 ` [PATCH 26/38] trace-cmd listen: Add better output on error of connections Steven Rostedt
2018-01-03 17:52 ` [PATCH 27/38] trace-cmd msg: Create a msg_handle to pass around for saved state Steven Rostedt
2018-01-03 17:52 ` [PATCH 28/38] trace-cmd msg: Add server structure of msg_handler Steven Rostedt
2018-01-03 20:31 ` [PATCH 28/38 v2] " Steven Rostedt
2018-01-03 17:52 ` [PATCH 29/38] trace-cmd: Remove global use_tcp variable Steven Rostedt
2018-01-03 17:52 ` [PATCH 30/38] trace-cmd: Move protocol version into msg_handler Steven Rostedt
2018-01-03 17:52 ` [PATCH 31/38] tracecmd: Clean up handling of cpu_count Steven Rostedt
2018-01-03 17:52 ` [PATCH 32/38] tracecmd listen: Have pagesize passed as return not parameter Steven Rostedt
2018-01-03 17:52 ` [PATCH 33/38] trace-cmd: Have cpu_count reside in instances and not be global Steven Rostedt
2018-01-03 17:52 ` [PATCH 34/38] trace-cmd: Add option CPUCOUNT to buffer instance options Steven Rostedt
2018-01-03 17:52 ` [PATCH 35/38] trace-cmd: Have msg_handle part of the buffer instance Steven Rostedt
2018-01-03 17:52 ` [PATCH 36/38] trace-cmd record: Allow instances to be recorded over the network Steven Rostedt
2018-01-03 17:52 ` [PATCH 37/38] trace-cmd: Have keep and profile be flags of buffer instance Steven Rostedt
2018-01-03 17:52 ` [PATCH 38/38] trace-cmd: Add network handle into " Steven Rostedt
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