From 83c7423d1eb6806d13c521d1002cc1a012111719 Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Wed, 21 Dec 2022 17:45:51 +0100 Subject: [PATCH] udf: Fix extension of the last extent in the file When extending the last extent in the file within the last block, we wrongly computed the length of the last extent. This is mostly a cosmetical problem since the extent does not contain any data and the length will be fixed up by following operations but still. Fixes: 1f3868f06855 ("udf: Fix extending file within last block") Signed-off-by: Jan Kara --- fs/udf/inode.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/udf/inode.c b/fs/udf/inode.c index 1d7c2a812fc1..f3e988928d1d 100644 --- a/fs/udf/inode.c +++ b/fs/udf/inode.c @@ -595,7 +595,7 @@ static void udf_do_extend_final_block(struct inode *inode, */ if (new_elen <= (last_ext->extLength & UDF_EXTENT_LENGTH_MASK)) return; - added_bytes = (last_ext->extLength & UDF_EXTENT_LENGTH_MASK) - new_elen; + added_bytes = new_elen - (last_ext->extLength & UDF_EXTENT_LENGTH_MASK); last_ext->extLength += added_bytes; UDF_I(inode)->i_lenExtents += added_bytes;