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优化remount命令

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Signed-off-by: ohxianzhi <duxianzhi@huawei.com>
Change-Id: I22a3d5e7951de777b1445b1607ce65722837a214
This commit is contained in:
ohxianzhi 2024-10-30 17:34:32 +08:00
parent 0e17cb86e1
commit b7cb50d3e9
8 changed files with 30 additions and 37 deletions
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2
interfaces/innerkits/fs_manager/erofs_overlay/erofs_overlay_common.c
View File

@ -66,7 +66,7 @@ bool CheckIsExt4(const char *dev, uint64_t offset)
}
if (superBlock.s_magic == EXT4_SUPER_MAGIC) {
BEGET_LOGE("this [dev] %s is ext4:[block cout]: %d, [size]: %d", dev,
BEGET_LOGI("this [dev] %s is ext4:[block cout]: %d, [size]: %d", dev,
superBlock.s_blocks_count_lo, (superBlock.s_blocks_count_lo * BLOCK_SIZE_UNIT));
close(fd);
return true;

12
interfaces/innerkits/fs_manager/erofs_overlay/erofs_remount_overlay.c
View File

@ -36,14 +36,12 @@ int GetRemountResult(void)
close(fd);
if (buff[0] == '0' + REMOUNT_SUCC) {
return REMOUNT_SUCC;
} else {
return REMOUNT_FAIL;
}
}
return REMOUNT_NONE;
return REMOUNT_FAIL;
}
void SetRemountResultFlag(bool result)
void SetRemountResultFlag()
{
struct stat st;
int ret;
@ -64,11 +62,7 @@ void SetRemountResultFlag(bool result)
}
char buff[1];
if (result) {
buff[0] = '0' + REMOUNT_SUCC;
} else {
buff[0] = '0' + REMOUNT_FAIL;
}
buff[0] = '0' + REMOUNT_SUCC;
ret = write(fd, buff, 1);
if (ret < 0) {

7
interfaces/innerkits/fs_manager/erofs_overlay/include/erofs_remount_overlay.h
View File

@ -33,13 +33,12 @@ extern "C" {
#define REMOUNT_RESULT_PATH STARTUP_INIT_UT_PATH"/data/service/el1/startup/remount/"
#define REMOUNT_RESULT_FLAG STARTUP_INIT_UT_PATH"/data/service/el1/startup/remount/remount.result.done"
#define REMOUNT_NONE 0
#define REMOUNT_SUCC 1
#define REMOUNT_FAIL 2
#define REMOUNT_SUCC 0
#define REMOUNT_FAIL 1
int GetRemountResult(void);
void SetRemountResultFlag(bool result);
void SetRemountResultFlag();
int RemountOverlay(void);

2
remount/include/remount_overlay.h
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@ -24,7 +24,7 @@ extern "C" {
#endif
#endif
bool RemountRofsOverlay();
int RemountRofsOverlay();
#ifdef __cplusplus
#if __cplusplus

6
remount/remount.c
View File

@ -25,9 +25,9 @@ int main(int argc, const char *argv[])
#ifdef EROFS_OVERLAY
EnableInitLog(INIT_INFO);
if (getuid() == 0 && IsOverlayEnable()) {
bool ret = RemountRofsOverlay();
printf("remount %s\n", ret ? "success" : "failed");
return ret ? 0 : 1;
int ret = RemountRofsOverlay();
printf("remount %s\n", ret == REMOUNT_SUCC ? "success" : "failed");
return ret;
}
printf("not need erofs overlay, remount success\n");
#endif

29
remount/remount_overlay.c
View File

@ -157,7 +157,7 @@ INIT_STATIC void OverlayRemountPost(const char *mnt)
}
}
INIT_STATIC bool DoRemount(struct mntent *mentry, bool *result)
INIT_STATIC bool DoRemount(struct mntent *mentry)
{
int devNum = 0;
char *mnt = NULL;
@ -207,7 +207,6 @@ INIT_STATIC bool DoRemount(struct mntent *mentry, bool *result)
return false;
}
OverlayRemountPost(mnt);
*result = true;
return true;
}
@ -255,7 +254,7 @@ int RootOverlaySetup(void)
return 0;
}
INIT_STATIC bool DoSystemRemount(struct mntent *mentry, bool *result)
INIT_STATIC bool DoSystemRemount(struct mntent *mentry)
{
int devNum = 0;
int ret = 0;
@ -292,7 +291,6 @@ INIT_STATIC bool DoSystemRemount(struct mntent *mentry, bool *result)
return false;
}
*result = true;
return true;
}
@ -390,19 +388,18 @@ static void EngFilesOverlay(const char *source, const char *target)
dir = NULL;
}
bool RemountRofsOverlay()
int RemountRofsOverlay()
{
bool result = false;
int lastRemountResult = GetRemountResult();
INIT_LOGI("get last remount result is %d.", lastRemountResult);
if (lastRemountResult != REMOUNT_NONE) {
return (lastRemountResult == REMOUNT_SUCC) ? true : false;
if (lastRemountResult == REMOUNT_SUCC) {
return REMOUNT_SUCC;
}
FILE *fp;
struct mntent *mentry = NULL;
if ((fp = setmntent("/proc/mounts", "r")) == NULL) {
INIT_LOGE("Failed to open /proc/mounts.");
return false;
return REMOUNT_FAIL;
}
while (NULL != (mentry = getmntent(fp))) {
@ -412,23 +409,27 @@ bool RemountRofsOverlay()
}
if (strcmp(mentry->mnt_dir, ROOT_MOUNT_DIR) == 0) {
DoSystemRemount(mentry, &result);
if (!DoSystemRemount(mentry)) {
endmntent(fp);
INIT_LOGE("do system remount failed on %s", mentry->mnt_dir);
return REMOUNT_FAIL;
}
continue;
}
INIT_LOGI("do remount %s", mentry->mnt_dir);
if (!DoRemount(mentry, &result)) {
if (!DoRemount(mentry)) {
endmntent(fp);
INIT_LOGE("do remount failed on %s", mentry->mnt_dir);
return false;
return REMOUNT_FAIL;
}
}
endmntent(fp);
SetRemountResultFlag(result);
SetRemountResultFlag();
INIT_LOGI("remount system overlay...");
EngFilesOverlay("/eng_system", "/");
INIT_LOGI("remount chipset overlay...");
EngFilesOverlay("/eng_chipset", "/chipset");
return true;
return REMOUNT_SUCC;
}

5
test/unittest/fs_manager/erofs/erofs_remount_unittest.cpp
View File

@ -32,11 +32,10 @@ HWTEST_F(ErofsRemountUnitTest, Init_GetRemountResult_001, TestSize.Level0)
{
const char *cmdLine;
rmdir(REMOUNT_RESULT_PATH);
SetRemountResultFlag(true);
SetRemountResultFlag();
CheckAndCreateDir(REMOUNT_RESULT_FLAG);
SetRemountResultFlag(false);
SetRemountResultFlag(true);
SetRemountResultFlag();
rmdir(REMOUNT_RESULT_PATH);
}

4
test/unittest/param/param_stub.h
View File

@ -107,9 +107,9 @@ int GetDevSize(const char *fsBlkDev, uint64_t *devSize);
int FormatExt4(const char *fsBlkDev, const char *fsMntPoint);
void OverlayRemountPre(const char *mnt);
void OverlayRemountPost(const char *mnt);
bool DoRemount(struct mntent *mentry, bool *result);
bool DoRemount(struct mntent *mentry);
bool DirectoryExists(const char *path);
bool DoSystemRemount(struct mntent *mentry, bool *result);
bool DoSystemRemount(struct mntent *mentry);
//remount
int Modem2Exchange(const char *modemPath, const char *exchangePath);