Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit d8221d98 authored by San Mehat's avatar San Mehat
Browse files

vold: vfat: Run up to 3 passes of the disk checker when the checker 


indicates the FS has been modified. Also create LOST.DIR if it doesn't
exist on mount.

Signed-off-by: default avatarSan Mehat <san@google.com>
parent b6e70d87

vold/volmgr_vfat.c

+49 −22
Original line number Diff line number Diff line
@@ -51,6 +51,8 @@ int vfat_check(blkdev_t *dev) 
        return 0;

    }



    int pass = 1;

    do {

        char *args[5];

        args[0] = FSCK_MSDOS_PATH;

        args[1] = "-p";
@@ -66,6 +68,15 @@ int vfat_check(blkdev_t *dev) 
        } else if (rc == 2) {

            LOG_VOL("Filesystem check failed (not a FAT filesystem)");

            return -ENODATA;

        } else if (rc == 4) {

            if (pass++ <= 3) {

                LOG_VOL("Filesystem modified - rechecking (pass %d)",

                        pass);

                continue;

            } else {

                LOG_VOL("Failing check after too many rechecks");

                return -EIO;

            }

        } else if (rc == -11) {

            LOG_VOL("Filesystem check crashed");

            return -EIO;
@@ -73,6 +84,7 @@ int vfat_check(blkdev_t *dev) 
            LOG_VOL("Filesystem check failed (unknown exit code %d)", rc);

            return -EIO;

        }

    } while (0);

    return 0;

}
@@ -113,6 +125,21 @@ int vfat_mount(blkdev_t *dev, volume_t *vol, boolean safe_mode) 
                   "utf8,uid=1000,gid=1015,fmask=702,dmask=702,shortname=mixed");

    }



    if (rc == 0) {

        char *lost_path;

        asprintf(&lost_path, "%s/LOST.DIR", vol->mount_point);

        if (access(lost_path, F_OK)) {

            /*

             * Create a LOST.DIR in the root so we have somewhere to put

             * lost cluster chains (fsck_msdos doesn't currently do this)

             */

            if (mkdir(lost_path, 0755)) {

                LOGE("Unable to create LOST.DIR (%s)", strerror(errno));

            }

        }

        free(lost_path);

    }



#if VFAT_DEBUG

    LOG_VOL("vfat_mount(%s, %d:%d): mount rc = %d", dev->major,k dev->minor,

            vol->mount_point, rc);