blob: d653ee56b4a1d5fbe1a8ef702c27667ed3c66ad3 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
|
#!/system/bin/sh
#
# Copyright (C) 2019 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# This script will run as an pre-checkpointing cleanup for mounting f2fs
# with checkpoint=disable, so that the first mount after the reboot will
# be faster. It is unnecessary to run if the device does not use userdata
# checkpointing on F2FS.
# TARGET_SLOT="${1}"
STATUS_FD="${2}"
DIRTY_SEGMENTS_THRESHOLD=100
SLEEP=5
TIME=0
MAX_TIME=3600
NAME=`while read dev dir type opt; do
if [ /data = ${dir} -a f2fs = ${type} ]; then
echo ${dev##*/}
break
fi
done < /proc/mounts`
if [ -z "${NAME}" ]; then
exit 0
fi
log -pi -t checkpoint_gc Turning on GC for ${NAME}
echo 1 > /sys/fs/f2fs/${NAME}/gc_urgent || exit 1
read DIRTY_SEGMENTS_START < /sys/fs/f2fs/${NAME}/dirty_segments
DIRTY_SEGMENTS=${DIRTY_SEGMENTS_START}
TODO_SEGMENTS=$((${DIRTY_SEGMENTS_START}-${DIRTY_SEGMENTS_THRESHOLD}))
while [ ${DIRTY_SEGMENTS} -gt ${DIRTY_SEGMENTS_THRESHOLD} ]; do
log -pi -t checkpoint_gc dirty segments:${DIRTY_SEGMENTS} \(threshold:${DIRTY_SEGMENTS_THRESHOLD}\)
PROGRESS=`echo "(${DIRTY_SEGMENTS_START}-${DIRTY_SEGMENTS})/${TODO_SEGMENTS}"|bc -l`
if [[ $PROGRESS == -* ]]; then
PROGRESS=0
fi
print -u${STATUS_FD} "global_progress ${PROGRESS}"
read DIRTY_SEGMENTS < /sys/fs/f2fs/${NAME}/dirty_segments
sleep ${SLEEP}
TIME=$((${TIME}+${SLEEP}))
if [ ${TIME} -gt ${MAX_TIME} ]; then
break
fi
# In case someone turns it off behind our back
echo 1 > /sys/fs/f2fs/${NAME}/gc_urgent
done
log -pi -t checkpoint_gc Turning off GC for ${NAME}
echo 0 > /sys/fs/f2fs/${NAME}/gc_urgent
sync
print -u${STATUS_FD} "global_progress 1.0"
exit 0
|
