xen/tapdisk-ioemu-logfile.patch

47 lines
1.3 KiB
Diff

From 903a145f3eace5e3ae914f0335ab6c4e33635d2f Mon Sep 17 00:00:00 2001
From: Kevin Wolf <kwolf@suse.de>
Date: Tue, 10 Mar 2009 16:36:23 +0100
Subject: [PATCH 4/6] tapdisk-ioemu: Write messages to a logfile
Typically, tapdisk-ioemu runs as a daemon and messages to stderr are
simply lost. Write them to a logfile instead.
Signed-off-by: Kevin Wolf <kwolf@suse.de>
---
tapdisk-ioemu.c | 19 +++++++++++++------
1 files changed, 13 insertions(+), 6 deletions(-)
Index: xen-4.0.0-testing/tools/ioemu-remote/tapdisk-ioemu.c
===================================================================
--- xen-4.0.0-testing.orig/tools/ioemu-remote/tapdisk-ioemu.c
+++ xen-4.0.0-testing/tools/ioemu-remote/tapdisk-ioemu.c
@@ -78,15 +78,22 @@ int main(void)
struct timeval tv;
void *old_fd_start = NULL;
- logfile = stderr;
-
+ /* Daemonize */
+ if (fork() != 0)
+ exit(0);
+
bdrv_init();
init_blktap();
- /* Daemonize */
- if (fork() != 0)
- exit(0);
-
+ logfile = fopen("/var/log/xen/tapdisk-ioemu.log", "a");
+ if (logfile) {
+ setbuf(logfile, NULL);
+ fclose(stderr);
+ stderr = logfile;
+ } else {
+ logfile = stderr;
+ }
+
/*
* Main loop: Pass events to the corrsponding handlers and check for
* completed aio operations.