[xen master] mkdeb: use compression level 0

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[xen master] mkdeb: use compression level 0

commit 1d069e45f7c2f6b2982797dd32092b300bacafad
Author:     Wei Liu <[hidden email]>
AuthorDate: Fri Sep 7 11:41:31 2018 +0100
Commit:     Wei Liu <[hidden email]>
CommitDate: Fri Sep 7 15:06:00 2018 +0100

    mkdeb: use compression level 0
    This requires calling dpkg-deb directly and pass it -z0.
    It reduces the time to run the mkdeb script from 14 seconds to 3
    seconds on my workstation with SSD, from 87s to 15s on a machine
    with HDD. The deb file grows from 49M to 58M.
    Signed-off-by: Wei Liu <[hidden email]>
    Acked-by: Ian Jackson <[hidden email]>
 tools/misc/mkdeb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/misc/mkdeb b/tools/misc/mkdeb
index 67b91cc1e5..f4befccc42 100644
--- a/tools/misc/mkdeb
+++ b/tools/misc/mkdeb
@@ -59,7 +59,7 @@ find deb/etc -type f -printf /etc/%P\\n >deb/DEBIAN/conffiles
 # Package it up
 chown -R root:root deb
-dpkg --build deb xen-upstream-$version.deb
+dpkg-deb --build -z0 deb xen-upstream-$version.deb
 # Tidy up after ourselves
 rm -rf deb
generated by git-patchbot for /home/xen/git/xen.git#master

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