[PATCH] erofs-utils: do not check ->idata_size for compressed files in erofs_prepare_inode_buffer()

[Yue Hu]

From: Yue Hu <huyue2 at yulong.com>

erofs_write_compressed_file() will always set inode->idata_size = 0
if succeed, that means no tail-end data for compressed files. So, no
need to call erofs_prepare_tail_block() which is used to handle
tail-end data for that case. Just skip it.

Also, correct 'a inode' -> 'an inode'.

Signed-off-by: Yue Hu <huyue2 at yulong.com>
---
 lib/inode.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/inode.c b/lib/inode.c
index b6108db..b5f66de 100644
--- a/lib/inode.c
+++ b/lib/inode.c
@@ -111,7 +111,7 @@ struct erofs_dentry *erofs_d_alloc(struct erofs_inode *parent,
 	return d;
 }
 
-/* allocate main data for a inode */
+/* allocate main data for an inode */
 static int __allocate_inode_bh_data(struct erofs_inode *inode,
 				    unsigned long nblocks)
 {
@@ -572,11 +572,11 @@ static int erofs_prepare_inode_buffer(struct erofs_inode *inode)
 		int ret;
 
 		inode->datalayout = EROFS_INODE_FLAT_PLAIN;
-noinline:
 		/* expend an extra block for tail-end data */
 		ret = erofs_prepare_tail_block(inode);
 		if (ret)
 			return ret;
+noinline:
 		bh = erofs_balloc(INODE, inodesize, 0, 0);
 		if (IS_ERR(bh))
 			return PTR_ERR(bh);
-- 
1.9.1