ACPR/android_system_core
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init: fix to set sd device label correctly for FS

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The sysfs node of sd blk_device is /sys/fs/f2fs/sd-<num>, we shouldn't
skip partition number at this time.

Bug: 189257443
Test: access sd-<num> sysfs correctly
Signed-off-by: Guo Weichao <guoweichao@oppo.com>
Signed-off-by: Huang Jianan <huangjianan@oppo.com>
Change-Id: Ibcd7bb265f8fca9cd26f8770403f1bafad433acb
This commit is contained in:
Guo Weichao 2021-05-26 11:12:11 +08:00 • committed by Huang Jianan
parent bd5d08c135
commit bcefbb1dfb
2 changed files with 11 additions and 5 deletions
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12
init/mount_handler.cpp
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@ -90,12 +90,18 @@ void SetMountProperty(const MountHandlerEntry& entry, bool add) {
auto mount_prop = entry.mount_point;
if (mount_prop == "/") mount_prop = "/root";
std::replace(mount_prop.begin(), mount_prop.end(), '/', '.');
mount_prop = "dev.mnt.blk" + mount_prop;
auto blk_mount_prop = "dev.mnt.blk" + mount_prop;
auto dev_mount_prop = "dev.mnt.dev" + mount_prop;
// Set property even if its value does not change to trigger 'on property:'
// handling, except for clearing non-existent or already clear property.
// Goal is reduction of empty properties and associated triggers.
if (value.empty() && android::base::GetProperty(mount_prop, "").empty()) return;
android::base::SetProperty(mount_prop, value);
if (value.empty() && android::base::GetProperty(blk_mount_prop, "").empty()) return;
android::base::SetProperty(blk_mount_prop, value);
if (!value.empty()) {
android::base::SetProperty(dev_mount_prop, entry.blk_device.substr(strlen(devblock)));
} else {
android::base::SetProperty(dev_mount_prop, "");
}
}
} // namespace

4
rootdir/init.rc
View file

@ -1030,11 +1030,11 @@ on boot
# to access F2FS sysfs on dm-<num> directly
mkdir /dev/sys/fs/by-name 0755 system system
symlink /sys/fs/f2fs/${dev.mnt.blk.data} /dev/sys/fs/by-name/userdata
symlink /sys/fs/f2fs/${dev.mnt.dev.data} /dev/sys/fs/by-name/userdata
# to access dm-<num> sysfs
mkdir /dev/sys/block/by-name 0755 system system
symlink /sys/devices/virtual/block/${dev.mnt.blk.data} /dev/sys/block/by-name/userdata
symlink /sys/devices/virtual/block/${dev.mnt.dev.data} /dev/sys/block/by-name/userdata
# F2FS tuning. Set cp_interval larger than dirty_expire_centisecs, 30 secs,
# to avoid power consumption when system becomes mostly idle. Be careful