32 lines
1016 B
Diff
32 lines
1016 B
Diff
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# HG changeset patch
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# User Keir Fraser <keir.fraser@citrix.com>
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# Date 1271053336 -3600
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# Node ID b5f9c6274d917db5bbe6cb9cc0d59910cc07a8a6
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# Parent 5bc70100b514d98bd3938cdeca1e182726c26df2
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libxc: Flush I/O before xc_domain_save completion
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The final, flushing call to discard_file_cache also discards any
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errors from fsync. Call fsync explicitly before leaving, to check if
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all VM memory actually made it to the disk.
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Signed-off-by: Daniel Stodden <daniel.stodden@citrix.com>
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Index: xen-4.0.0-testing/tools/libxc/xc_domain_save.c
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===================================================================
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--- xen-4.0.0-testing.orig/tools/libxc/xc_domain_save.c
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+++ xen-4.0.0-testing/tools/libxc/xc_domain_save.c
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@@ -1764,6 +1764,13 @@ int xc_domain_save(int xc_handle, int io
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goto out;
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}
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+ /* Flush last write and check for errors. */
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+ if ( fsync(io_fd) && errno != EINVAL )
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+ {
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+ PERROR("Error when flushing state file");
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+ goto out;
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+ }
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+
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/* Success! */
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rc = 0;
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