From 0b66b11523cb3f8e7852dfc71ec3ed5cc64c7020 Mon Sep 17 00:00:00 2001
From: Jinshan Xiong <jinshan.xiong@intel.com>
Date: Mon, 16 Oct 2017 11:44:00 -0700
Subject: [PATCH] LU-3285 tests: add dom into racer test suite

Add dom into racer test and fix a problem where it checks OSTCOUNT
to decide if to use specific layout.

Test-parameters: trivial testlist=racer,racer,racer mdscount=1 mdtcount=1

Signed-off-by: Jinshan Xiong <jinshan.xiong@intel.com>
Change-Id: Ie3245644589f636201d11d9fc2ce86ecec82649e
Reviewed-on: https://review.whamcloud.com/29631
Tested-by: Jenkins
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: Mike Pershin <mike.pershin@intel.com>
---
 lustre/tests/racer/file_create.sh | 35 ++++++++++++++++++++++++++++++++---
 1 file changed, 32 insertions(+), 3 deletions(-)

diff --git a/lustre/tests/racer/file_create.sh b/lustre/tests/racer/file_create.sh
index b1704d3..cf7b6f2 100755
--- a/lustre/tests/racer/file_create.sh
+++ b/lustre/tests/racer/file_create.sh
@@ -5,15 +5,44 @@ DIR=$1
 MAX=$2
 MAX_MB=${RACER_MAX_MB:-8}
 
+. $LUSTRE/tests/test-framework.sh
+
 OSTCOUNT=${OSTCOUNT:-$($LFS df $DIR 2> /dev/null | grep -c OST)}
 
+layout=(raid0 raid0)
+
+# check if it supports PFL layout
+[[ $(lustre_version_code $SINGLEMDS) -ge $(version_code 2.10.0) ]] &&
+	layout+=(pfl pfl pfl)
+
+# check if it supports DoM
+[[ $(lustre_version_code $SINGLEMDS) -ge $(version_code 2.10.53) ]] &&
+	layout+=(dom dom)
+
+echo "layout: ${layout[*]}"
+
 while /bin/true; do
 	file=$((RANDOM % MAX))
 	# $RANDOM is between 0 and 32767, and we want $blockcount in 64kB units
 	blockcount=$((RANDOM * MAX_MB / 32 / 64))
 	stripecount=$((RANDOM % (OSTCOUNT + 1)))
-	[ $OSTCOUNT -gt 0 ] &&
-		$LFS setstripe -c $stripecount $DIR/$file 2> /dev/null
-	dd if=/dev/zero of=$DIR/$file bs=64k count=$blockcount 2> /dev/null
+
+	[ $stripecount -gt 0 ] && {
+		stripesize=$(((RANDOM % 16 + 1) * 64))K
+		pattern=${layout[$RANDOM % ${#layout[*]}]}
+
+		case $pattern in
+		dom) opt="-E $stripesize -L mdt -E eof -c $stripecount -S 1M" ;;
+		pfl) opt="-E 1M -S $stripesize -E eof -c $stripecount -S 2M" ;;
+		raid0) opt="-S $stripesize -c $stripecount" ;;
+		esac
+
+		$LFS setstripe $opt $DIR/$file 2> /dev/null || true
+	}
+
+	# offset between 0 and 16MB (256 64k chunks), with 1/2 at offset 0
+	seek=$((RANDOM / 64)); [ $seek -gt 256 ] && seek=0
+	dd if=/dev/zero of=$DIR/$file bs=64k count=$blockcount \
+		seek=$seek 2> /dev/null || true
 done
 
-- 
1.8.3.1