diff options
Diffstat (limited to 'fs/btrfs/volumes.c')
| -rw-r--r-- | fs/btrfs/volumes.c | 21 |
1 files changed, 12 insertions, 9 deletions
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index 13e55d13045d..73d56eef5e60 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -1725,7 +1725,7 @@ out: * Function to update ctime/mtime for a given device path. * Mainly used for ctime/mtime based probe like libblkid. */ -static void update_dev_time(char *path_name) +static void update_dev_time(const char *path_name) { struct file *filp; @@ -1851,7 +1851,8 @@ void btrfs_assign_next_active_device(struct btrfs_fs_info *fs_info, fs_info->fs_devices->latest_bdev = next_device->bdev; } -int btrfs_rm_device(struct btrfs_fs_info *fs_info, char *device_path, u64 devid) +int btrfs_rm_device(struct btrfs_fs_info *fs_info, const char *device_path, + u64 devid) { struct btrfs_device *device; struct btrfs_fs_devices *cur_devices; @@ -2091,7 +2092,7 @@ void btrfs_destroy_dev_replace_tgtdev(struct btrfs_fs_info *fs_info, } static int btrfs_find_device_by_path(struct btrfs_fs_info *fs_info, - char *device_path, + const char *device_path, struct btrfs_device **device) { int ret = 0; @@ -2118,7 +2119,7 @@ static int btrfs_find_device_by_path(struct btrfs_fs_info *fs_info, } int btrfs_find_device_missing_or_by_path(struct btrfs_fs_info *fs_info, - char *device_path, + const char *device_path, struct btrfs_device **device) { *device = NULL; @@ -2151,7 +2152,8 @@ int btrfs_find_device_missing_or_by_path(struct btrfs_fs_info *fs_info, * Lookup a device given by device id, or the path if the id is 0. */ int btrfs_find_device_by_devspec(struct btrfs_fs_info *fs_info, u64 devid, - char *devpath, struct btrfs_device **device) + const char *devpath, + struct btrfs_device **device) { int ret; @@ -2307,7 +2309,7 @@ error: return ret; } -int btrfs_init_new_device(struct btrfs_fs_info *fs_info, char *device_path) +int btrfs_init_new_device(struct btrfs_fs_info *fs_info, const char *device_path) { struct btrfs_root *root = fs_info->dev_root; struct request_queue *q; @@ -2515,7 +2517,7 @@ error: } int btrfs_init_dev_replace_tgtdev(struct btrfs_fs_info *fs_info, - char *device_path, + const char *device_path, struct btrfs_device *srcdev, struct btrfs_device **device_out) { @@ -6954,7 +6956,8 @@ static int update_dev_stat_item(struct btrfs_trans_handle *trans, key.offset = device->devid; path = btrfs_alloc_path(); - BUG_ON(!path); + if (!path) + return -ENOMEM; ret = btrfs_search_slot(trans, dev_root, &key, path, -1, 1); if (ret < 0) { btrfs_warn_in_rcu(fs_info, @@ -7102,7 +7105,7 @@ int btrfs_get_dev_stats(struct btrfs_fs_info *fs_info, return 0; } -void btrfs_scratch_superblocks(struct block_device *bdev, char *device_path) +void btrfs_scratch_superblocks(struct block_device *bdev, const char *device_path) { struct buffer_head *bh; struct btrfs_super_block *disk_super; |