seq_file: move doc to README

rootfs_overlay/seq_file.sh

@@ -1,29 +1,10 @@
 #!/bin/sh
-
-set -ex
-
+set -e
+f=/sys/kernel/debug/lkmc_seq_file
 insmod /seq_file.ko
-cd /sys/kernel/debug
-
-cat 'lkmc_seq_file'
-# => 0
-# => 1
-# => 2
-
-cat 'lkmc_seq_file'
-# => 0
-# => 1
-# => 2
-
-dd if='lkmc_seq_file' bs=1 count=2 skip=0 status=none
-# => 0
-dd if='lkmc_seq_file' bs=1 count=4 skip=0 status=none
-# => 0
-# => 1
-dd if='lkmc_seq_file' bs=1 count=2 skip=2 status=none
-# => 1
-dd if='lkmc_seq_file' bs=4 count=1 skip=0 status=none
-# => 0
-# => 1
-
+[ "$(cat "$f")" = "$(printf '0\n1\n2\n')" ]
+[ "$(cat "$f")" = "$(printf '0\n1\n2\n')" ]
+[ "$(dd if="$f" bs=1 count=2 skip=0 status=none)" = "$(printf '0\n')" ]
+[ "$(dd if="$f" bs=1 count=2 skip=2 status=none)" = "$(printf '1\n')" ]
+[ "$(dd if="$f" bs=4 count=1 skip=0 status=none)" = "$(printf '0\n1\n')" ]
 rmmod seq_file

rootfs_overlay/seq_file_single.sh

@@ -1,12 +0,0 @@
-#!/bin/sh
-set -ex
-insmod /seq_file_single.ko
-cd /sys/kernel/debug
-cat 'lkmc_seq_file_single'
-# => ab
-# => cd
-dd if='lkmc_seq_file_single' bs=1 count=3 skip=1
-# => b
-# => c
-
-rmmod seq_file_single

rootfs_overlay/seq_file_single_open.sh

@@ -0,0 +1,7 @@
+#!/bin/sh
+set -e
+f=/sys/kernel/debug/lkmc_seq_file_single_open
+insmod /seq_file_single_open.ko
+[ "$(cat "$f")" = "$(printf 'ab\ncd\n')" ]
+[ "$(dd if="$f" bs=1 count=3 skip=1)" = "$(printf "b\nc\n")" ]
+rmmod seq_file_single_open

rootfs_overlay/test_all.sh

@@ -6,8 +6,10 @@ for test in \
   /debugfs.sh \
   /fops.sh \
   /procfs.sh \
-  /sysfs.sh
-do
+  /seq_file.sh \
+  /seq_file_single_open.sh \
+  /sysfs.sh \
+; do
   if ! "$test"; then
     echo "lkmc_test_fail: ${test}"
     exit 1