Kbuild: use normal compression settings for tar*-pkg

For large kernel configurations (like a distribution kernel)
targz-pkg takes a quite long time to just do the compression.
I clocked it at 15+mins for a SUSE kernel like config on a fast
system.  And tarxz and bzip2 are even slower.

The main reason is that the script that is doing the taring sets
the highest compression level (-9).  When I change it to just
use the defaults the gzip time for the same kernel goes down
to ~3 mins. I haven't tested xz and bzip, but I expect those
to be much faster too.

I'm not willing to wait that long for a small compression
gain. So just change the script to use the defaults.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Reviewed-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>

1 files changed, 3 insertions, 3 deletions

diff --git a/scripts/package/buildtar b/scripts/package/buildtar
index 8a7b15598ea..632377f9dd3 100644
--- a/scripts/package/buildtar
+++ b/scripts/package/buildtar
@@ -28,15 +28,15 @@ case "${1}" in
                 file_ext=""
                 ;;
         targz-pkg)
-                compress="gzip -c9"
+                compress="gzip"
                 file_ext=".gz"
                 ;;
         tarbz2-pkg)
-                compress="bzip2 -c9"
+                compress="bzip2"
                 file_ext=".bz2"
                 ;;
         tarxz-pkg)
-                compress="xz -c9"
+                compress="xz"
                 file_ext=".xz"
                 ;;
         *)