ACPR/android_system_core
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Shutdown f2fs to avoid fsck

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Bug: 229406072
Signed-off-by: Jaegeuk Kim <jaegeuk@google.com>
Change-Id: Id3b27219ab2a4655f1740829b0f03f027e66349d
Merged-In: Id3b27219ab2a4655f1740829b0f03f027e66349d
This commit is contained in:
Jaegeuk Kim 2022-04-15 12:31:46 -07:00
parent a5867617af
commit 7e0df03bc9
1 changed files with 14 additions and 3 deletions
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17
init/reboot.cpp
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@ -18,6 +18,7 @@
#include <dirent.h> #include <dirent.h>
#include <fcntl.h> #include <fcntl.h>
#include <linux/f2fs.h>
#include <linux/fs.h> #include <linux/fs.h>
#include <linux/loop.h> #include <linux/loop.h>
#include <mntent.h> #include <mntent.h>
@ -218,7 +219,7 @@ static void LogShutdownTime(UmountStat stat, Timer* t) {
<< stat; << stat;
} }
static bool IsDataMounted() { static bool IsDataMounted(const std::string& fstype) {
std::unique_ptr<std::FILE, int (*)(std::FILE*)> fp(setmntent("/proc/mounts", "re"), endmntent); std::unique_ptr<std::FILE, int (*)(std::FILE*)> fp(setmntent("/proc/mounts", "re"), endmntent);
if (fp == nullptr) { if (fp == nullptr) {
PLOG(ERROR) << "Failed to open /proc/mounts"; PLOG(ERROR) << "Failed to open /proc/mounts";
@ -227,7 +228,7 @@ static bool IsDataMounted() {
mntent* mentry; mntent* mentry;
while ((mentry = getmntent(fp.get())) != nullptr) { while ((mentry = getmntent(fp.get())) != nullptr) {
if (mentry->mnt_dir == "/data"s) { if (mentry->mnt_dir == "/data"s) {
return true; return fstype == "*" || mentry->mnt_type == fstype;
} }
} }
return false; return false;
@ -633,7 +634,7 @@ static void DoReboot(unsigned int cmd, const std::string& reason, const std::str
// If /data isn't mounted then we can skip the extra reboot steps below, since we don't need to // If /data isn't mounted then we can skip the extra reboot steps below, since we don't need to
// worry about unmounting it. // worry about unmounting it.
if (!IsDataMounted()) { if (!IsDataMounted("*")) {
sync(); sync();
RebootSystem(cmd, reboot_target); RebootSystem(cmd, reboot_target);
abort(); abort();
@ -758,6 +759,16 @@ static void DoReboot(unsigned int cmd, const std::string& reason, const std::str
sem_post(&reboot_semaphore); sem_post(&reboot_semaphore);
// Reboot regardless of umount status. If umount fails, fsck after reboot will fix it. // Reboot regardless of umount status. If umount fails, fsck after reboot will fix it.
if (IsDataMounted("f2fs")) {
uint32_t flag = F2FS_GOING_DOWN_FULLSYNC;
unique_fd fd(TEMP_FAILURE_RETRY(open("/data", O_RDONLY)));
int ret = ioctl(fd, F2FS_IOC_SHUTDOWN, &flag);
if (ret) {
PLOG(ERROR) << "Shutdown /data: ";
} else {
LOG(INFO) << "Shutdown /data";
}
}
RebootSystem(cmd, reboot_target); RebootSystem(cmd, reboot_target);
abort(); abort();
} }