Re: [PATCH 1/1] hfsplus: fix longname handling

From: sougata
Date: Tue Feb 25 2014 - 13:03:14 EST


On 02/24/2014 11:48 PM, Andrew Morton wrote:
On Mon, 24 Feb 2014 21:28:27 +0200 Sougata Santra<sougata@xxxxxxxxxx> wrote:


-ENAMETOOLONG returned from hfsplus_asc2uni was not propaged to iops. This
allowed hfsplus to create files/directories with HFSPLUS_MAX_STRLEN and
incorrect keys, leaving the FS in an inconsistent state. This patch fixes
this issue.

...

--- a/fs/hfsplus/hfsplus_fs.h
+++ b/fs/hfsplus/hfsplus_fs.h
@@ -443,8 +443,10 @@ int hfsplus_cat_case_cmp_key(const hfsplus_btree_key *,
const hfsplus_btree_key *);
int hfsplus_cat_bin_cmp_key(const hfsplus_btree_key *,
const hfsplus_btree_key *);
-void hfsplus_cat_build_key(struct super_block *sb,
+int hfsplus_cat_build_key(struct super_block *sb,
hfsplus_btree_key *, u32, struct qstr *);
+void hfsplus_cat_build_key_with_cnid(struct super_block *sb,
+ hfsplus_btree_key *, u32);
int hfsplus_find_cat(struct super_block *, u32, struct hfs_find_data *);
int hfsplus_create_cat(u32, struct inode *, struct qstr *, struct inode *);
int hfsplus_delete_cat(u32, struct inode *, struct qstr *);

grumble. Omitting the argument names from declarations makes them
unreadable and generally useless. I mean, a bare u32?

And including the names of some arguments but omitting others is
downright bizarre.

However this isn't a thing which can or should be addressed within this
patch.

Also in hfsplus_fs.h there are:

====> snip <=====
#define hfs_btree_open hfsplus_btree_open
#define hfs_btree_close hfsplus_btree_close
#define hfs_btree_write hfsplus_btree_write
#define hfs_bmap_alloc hfsplus_bmap_alloc
#define hfs_bmap_free hfsplus_bmap_free
#define hfs_bnode_read hfsplus_bnode_read
...
====> snap <=====

Does these exist for some legacy reason or does it serve any other purpose ?. The only usage I see is that they change function names after pre-processing.

Thanks a lot,

Best regards,
Sougata.
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