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Diffstat (limited to 'fs/btrfs/super.c')
-rw-r--r--fs/btrfs/super.c38
1 files changed, 20 insertions, 18 deletions
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index 7932d8d07cff..bc73fd670702 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -72,23 +72,32 @@ const char * __attribute_const__ btrfs_decode_error(int errno)
char *errstr = "unknown";
switch (errno) {
- case -EIO:
+ case -ENOENT: /* -2 */
+ errstr = "No such entry";
+ break;
+ case -EIO: /* -5 */
errstr = "IO failure";
break;
- case -ENOMEM:
+ case -ENOMEM: /* -12*/
errstr = "Out of memory";
break;
- case -EROFS:
- errstr = "Readonly filesystem";
- break;
- case -EEXIST:
+ case -EEXIST: /* -17 */
errstr = "Object already exists";
break;
- case -ENOSPC:
+ case -ENOSPC: /* -28 */
errstr = "No space left";
break;
- case -ENOENT:
- errstr = "No such entry";
+ case -EROFS: /* -30 */
+ errstr = "Readonly filesystem";
+ break;
+ case -EOPNOTSUPP: /* -95 */
+ errstr = "Operation not supported";
+ break;
+ case -EUCLEAN: /* -117 */
+ errstr = "Filesystem corrupted";
+ break;
+ case -EDQUOT: /* -122 */
+ errstr = "Quota exceeded";
break;
}
@@ -1093,10 +1102,7 @@ char *btrfs_get_subvol_name_from_objectid(struct btrfs_fs_info *fs_info,
dirid = btrfs_root_ref_dirid(path->nodes[0], root_ref);
btrfs_release_path(path);
- key.objectid = subvol_objectid;
- key.type = BTRFS_ROOT_ITEM_KEY;
- key.offset = (u64)-1;
- fs_root = btrfs_get_fs_root(fs_info, &key, true);
+ fs_root = btrfs_get_fs_root(fs_info, subvol_objectid, true);
if (IS_ERR(fs_root)) {
ret = PTR_ERR(fs_root);
fs_root = NULL;
@@ -1211,7 +1217,6 @@ static int btrfs_fill_super(struct super_block *sb,
{
struct inode *inode;
struct btrfs_fs_info *fs_info = btrfs_sb(sb);
- struct btrfs_key key;
int err;
sb->s_maxbytes = MAX_LFS_FILESIZE;
@@ -1239,10 +1244,7 @@ static int btrfs_fill_super(struct super_block *sb,
return err;
}
- key.objectid = BTRFS_FIRST_FREE_OBJECTID;
- key.type = BTRFS_INODE_ITEM_KEY;
- key.offset = 0;
- inode = btrfs_iget(sb, &key, fs_info->fs_root);
+ inode = btrfs_iget(sb, BTRFS_FIRST_FREE_OBJECTID, fs_info->fs_root);
if (IS_ERR(inode)) {
err = PTR_ERR(inode);
goto fail_close;