Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / lib / raid6 / unroll.awk

diff --git a/kernel/lib/raid6/unroll.awk b/kernel/lib/raid6/unroll.awk
new file mode 100644 (file)
index 0000000..c6aa036
--- /dev/null
+++ b/kernel/lib/raid6/unroll.awk
@@ -0,0 +1,20 @@
+
+# This filter requires one command line option of form -vN=n
+# where n must be a decimal number.
+#
+# Repeat each input line containing $$ n times, replacing $$ with 0...n-1.
+# Replace each $# with n, and each $* with a single $.
+
+BEGIN {
+       n = N + 0
+}
+{
+       if (/\$\$/) { rep = n } else { rep = 1 }
+       for (i = 0; i < rep; ++i) {
+               tmp = $0
+               gsub(/\$\$/, i, tmp)
+               gsub(/\$\#/, n, tmp)
+               gsub(/\$\*/, "$", tmp)
+               print tmp
+       }
+}