48 lines
1.3 KiB
Diff
48 lines
1.3 KiB
Diff
From 1b98be7980ca1ac4a5ea1b140e09594c74824204 Mon Sep 17 00:00:00 2001
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From: Paolo Bonzini <pbonzini@redhat.com>
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Date: Fri, 22 Feb 2013 17:36:37 +0100
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Subject: [PATCH 235/246] qemu-file: fsync a writable stdio QEMUFile
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This is what fd_close does. Prepare for switching to a QEMUFile.
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Reviewed-by: Orit Wasserman <owasserm@redhat.com>
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Reviewed-by: Juan Quintela <quintela@redhat.com>
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Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Signed-off-by: Juan Quintela <quintela@redhat.com>
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---
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savevm.c | 18 ++++++++++++++++++
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1 file changed, 18 insertions(+)
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diff --git a/savevm.c b/savevm.c
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index 38699de..1d49fde 100644
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--- a/savevm.c
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+++ b/savevm.c
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@@ -256,6 +256,24 @@ static int stdio_fclose(void *opaque)
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{
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QEMUFileStdio *s = opaque;
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int ret = 0;
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+
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+ if (s->file->ops->put_buffer) {
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+ int fd = fileno(s->stdio_file);
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+ struct stat st;
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+
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+ ret = fstat(fd, &st);
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+ if (ret == 0 && S_ISREG(st.st_mode)) {
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+ /*
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+ * If the file handle is a regular file make sure the
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+ * data is flushed to disk before signaling success.
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+ */
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+ ret = fsync(fd);
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+ if (ret != 0) {
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+ ret = -errno;
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+ return ret;
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+ }
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+ }
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+ }
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if (fclose(s->stdio_file) == EOF) {
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ret = -errno;
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}
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--
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1.8.2.1
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