diff options
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/fs.c | 29 |
1 files changed, 19 insertions, 10 deletions
@@ -909,7 +909,6 @@ EXPORT_SYMBOL(readdir); static void stat_inode(struct inode *inode, struct stat *s) { - s->st_dev = 0; s->st_ino = inode->i_ino; s->st_mode = inode->i_mode; s->st_uid = inode->i_uid; @@ -951,9 +950,10 @@ const char *cdev_get_mount_path(struct cdev *cdev) /* * cdev_mount_default - mount a cdev to the default path * - * If a cdev is already mounted return the path it's mounted on, otherwise - * mount it to /mnt/<cdevname> and return the path. Returns an error pointer - * on failure. + * If a cdev is already mounted to the default mount path return the path + * it's mounted on. If it is mounted to any other path return EBUSY. + * Otherwise mount it to /mnt/<cdevname> and return the path. Returns an + * error pointer on failure. */ const char *cdev_mount_default(struct cdev *cdev, const char *fsoptions) { @@ -962,15 +962,24 @@ const char *cdev_mount_default(struct cdev *cdev, const char *fsoptions) int ret; /* - * If this cdev is already mounted somewhere use this path - * instead of mounting it again to avoid corruption on the - * filesystem. Note this ignores eventual fsoptions though. + * If this cdev is already mounted somewhere other than the + * default mount path return -EBUSY instead of mounting it + * again to avoid corruption on the filesystem. Note this + * ignores eventual fsoptions though. If the cdev is already + * mounted on the default path just return that path. */ path = cdev_get_mount_path(cdev); - if (path) - return path; - newpath = basprintf("/mnt/%s", cdev->name); + + if (path) { + if (strcmp(newpath, path)) { + free(newpath); + return ERR_PTR(-EBUSY); + } else { + return path; + } + } + make_directory(newpath); devpath = basprintf("/dev/%s", cdev->name); |