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am 5dc5bfef: Mount/unmount filesystems before running e2fsck 

* commit '5dc5bfefa078f2aded34f85db4613ba91ad49b76':
  Mount/unmount filesystems before running e2fsck
This commit is contained in:
Ken Sumrall 2012-07-25 14:30:54 -07:00 committed by Android Git Automerger
parent 36f2e2ac96 5dc5bfefa0
commit 228fc48a56
1 changed files with 24 additions and 3 deletions
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27
fs_mgr/fs_mgr.c
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@ -358,13 +358,34 @@ static void free_fstab(struct fstab_rec *fstab)
free(fstab);
}
static void check_fs(char *blk_dev, char *type)
static void check_fs(char *blk_dev, char *type, char *target)
{
pid_t pid;
int status;
int ret;
long tmpmnt_flags = MS_NOATIME | MS_NOEXEC | MS_NOSUID;
char *tmpmnt_opts = "nomblk_io_submit,errors=remount-ro";
/* Check for the types of filesystems we know how to check */
if (!strcmp(type, "ext2") || !strcmp(type, "ext3") || !strcmp(type, "ext4")) {
/*
* First try to mount and unmount the filesystem. We do this because
* the kernel is more efficient than e2fsck in running the journal and
* processing orphaned inodes, and on at least one device with a
* performance issue in the emmc firmware, it can take e2fsck 2.5 minutes
* to do what the kernel does in about a second.
*
* After mounting and unmounting the filesystem, run e2fsck, and if an
* error is recorded in the filesystem superblock, e2fsck will do a full
* check. Otherwise, it does nothing. If the kernel cannot mount the
* filesytsem due to an error, e2fsck is still run to do a full check
* fix the filesystem.
*/
ret = mount(blk_dev, target, type, tmpmnt_flags, tmpmnt_opts);
if (! ret) {
umount(target);
}
INFO("Running %s on %s\n", E2FSCK_BIN, blk_dev);
pid = fork();
if (pid > 0) {
@ -434,7 +455,7 @@ int fs_mgr_mount_all(char *fstab_file)
}
if (fstab[i].fs_mgr_flags & MF_CHECK) {
check_fs(fstab[i].blk_dev, fstab[i].type);
check_fs(fstab[i].blk_dev, fstab[i].type, fstab[i].mnt_point);
}
mret = mount(fstab[i].blk_dev, fstab[i].mnt_point, fstab[i].type,
@ -500,7 +521,7 @@ int fs_mgr_do_mount(char *fstab_file, char *n_name, char *n_blk_dev, char *tmp_m
}
if (fstab[i].fs_mgr_flags & MF_CHECK) {
check_fs(fstab[i].blk_dev, fstab[i].type);
check_fs(fstab[i].blk_dev, fstab[i].type, fstab[i].mnt_point);
}
/* Now mount it where requested */