[PATCH 1/3] selftests/zram: Remove obsolete max_comp_streams interface

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Since kernel commit 43209ea2d17a ("zram: remove max_comp_streams internals"), zram has
switched to per-cpu streams. Even kernel still keep this interface for some reasons, but
writing to max_comp_stream doesn't take any effect. So remove it.

Signed-off-by: Yang Xu <xuyang2018.jy@xxxxxxxxxxx>
---
 tools/testing/selftests/zram/zram01.sh   |  4 ----
 tools/testing/selftests/zram/zram02.sh   |  4 ----
 tools/testing/selftests/zram/zram_lib.sh | 22 ----------------------
 3 files changed, 30 deletions(-)

diff --git a/tools/testing/selftests/zram/zram01.sh b/tools/testing/selftests/zram/zram01.sh
index 114863d9fb87..28583e4ae546 100755
--- a/tools/testing/selftests/zram/zram01.sh
+++ b/tools/testing/selftests/zram/zram01.sh
@@ -15,9 +15,6 @@ ERR_CODE=0
 
 # Test will create the following number of zram devices:
 dev_num=1
-# This is a list of parameters for zram devices.
-# Number of items must be equal to 'dev_num' parameter.
-zram_max_streams="2"
 
 # The zram sysfs node 'disksize' value can be either in bytes,
 # or you can use mem suffixes. But in some old kernels, mem
@@ -72,7 +69,6 @@ zram_fill_fs()
 
 check_prereqs
 zram_load
-zram_max_streams
 zram_compress_alg
 zram_set_disksizes
 zram_set_memlimit
diff --git a/tools/testing/selftests/zram/zram02.sh b/tools/testing/selftests/zram/zram02.sh
index e83b404807c0..d664974a1317 100755
--- a/tools/testing/selftests/zram/zram02.sh
+++ b/tools/testing/selftests/zram/zram02.sh
@@ -14,9 +14,6 @@ ERR_CODE=0
 
 # Test will create the following number of zram devices:
 dev_num=1
-# This is a list of parameters for zram devices.
-# Number of items must be equal to 'dev_num' parameter.
-zram_max_streams="2"
 
 # The zram sysfs node 'disksize' value can be either in bytes,
 # or you can use mem suffixes. But in some old kernels, mem
@@ -30,7 +27,6 @@ zram_mem_limits="1M"
 
 check_prereqs
 zram_load
-zram_max_streams
 zram_set_disksizes
 zram_set_memlimit
 zram_makeswap
diff --git a/tools/testing/selftests/zram/zram_lib.sh b/tools/testing/selftests/zram/zram_lib.sh
index 6f872f266fd1..0c49f9d1d563 100755
--- a/tools/testing/selftests/zram/zram_lib.sh
+++ b/tools/testing/selftests/zram/zram_lib.sh
@@ -82,28 +82,6 @@ zram_load()
 	fi
 }
 
-zram_max_streams()
-{
-	echo "set max_comp_streams to zram device(s)"
-
-	local i=0
-	for max_s in $zram_max_streams; do
-		local sys_path="/sys/block/zram${i}/max_comp_streams"
-		echo $max_s > $sys_path || \
-			echo "FAIL failed to set '$max_s' to $sys_path"
-		sleep 1
-		local max_streams=$(cat $sys_path)
-
-		[ "$max_s" -ne "$max_streams" ] && \
-			echo "FAIL can't set max_streams '$max_s', get $max_stream"
-
-		i=$(($i + 1))
-		echo "$sys_path = '$max_streams' ($i/$dev_num)"
-	done
-
-	echo "zram max streams: OK"
-}
-
 zram_compress_alg()
 {
 	echo "test that we can set compression algorithm"
-- 
2.23.0




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