[Xen-changelog] [qemu-xen-unstable] qemu-dm: open char devices "file:..." with O_APPEND

[patchbot@xxxxxxx]

commit 89daacab7035d408f32f2cb1acf68c96d6cbefed
Author: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
Date:   Mon Nov 28 17:16:52 2011 +0000

    qemu-dm: open char devices "file:..." with O_APPEND
    
    The "file:..." character open method is used by serial and parallel
    ports, to divert the output to a file (and these devices never produce
    any input).  This is like a logfile, and so should be opened for
    append.
    
    In qemu-xen-unstable, this is used only for the qemu stderr by libxl.
    
    Signed-off-by: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
    Acked-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
---
 qemu-char.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/qemu-char.c b/qemu-char.c
index 35e428d..324ed16 100644
--- a/qemu-char.c
+++ b/qemu-char.c
@@ -588,7 +588,7 @@ static CharDriverState *qemu_chr_open_file_out(const char 
*file_out)
 {
     int fd_out;
 
-    TFR(fd_out = open(file_out, O_WRONLY | O_TRUNC | O_CREAT | O_BINARY, 
0666));
+    TFR(fd_out = open(file_out, O_WRONLY | O_TRUNC | O_CREAT | O_BINARY | 
O_APPEND, 0666));
     if (fd_out < 0)
         return NULL;
     return qemu_chr_open_fd(-1, fd_out);
--
generated by git-patchbot for /home/xen/git/qemu-xen-unstable.git

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