udf: fix udf_setsize() for file data in ICB

If the new size is larger than the old size and the old file data was
stored in the ICB (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB) and the
new size still fits in the ICB, skip the call to udf_extend_file() as it
does not handle this i_alloc_type value (it calls BUG()).

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Jan Kara <jack@suse.cz>

1 files changed, 4 insertions, 1 deletions

diff --git a/fs/udf/inode.c b/fs/udf/inode.c
index fafaad795cd6..aa233469b3c1 100644
--- a/fs/udf/inode.c
+++ b/fs/udf/inode.c
@@ -1124,14 +1124,17 @@ int udf_setsize(struct inode *inode, loff_t newsize)
                                 if (err)
                                         return err;
                                 down_write(&iinfo->i_data_sem);
-                        } else
+                        } else {
                                 iinfo->i_lenAlloc = newsize;
+                                goto set_size;
+                        }
                 }
                 err = udf_extend_file(inode, newsize);
                 if (err) {
                         up_write(&iinfo->i_data_sem);
                         return err;
                 }
+set_size:
                 truncate_setsize(inode, newsize);
                 up_write(&iinfo->i_data_sem);
         } else {