diff mbox series

[v3,3/4] ext4: rename xattr_find_entry() and __xattr_check_inode()

Message ID 20221208023233.1231330-4-yebin@huaweicloud.com
State New
Headers
Series Fix two issue about ext4 extended attribute |

Commit Message

Ye Bin Dec. 8, 2022, 2:32 a.m. UTC 
  From: Ye Bin <yebin10@huawei.com>

Prepend ext4 prefix to function names of xattr_find_entry() and
__xattr_check_inode() for consistency with other functions in ext4
xattr module.

Signed-off-by: Ye Bin <yebin10@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
---
 fs/ext4/xattr.c | 35 ++++++++++++++++++-----------------
 1 file changed, 18 insertions(+), 17 deletions(-)

Comments

Theodore Ts'o Dec. 9, 2022, 5:38 a.m. UTC | #1 
On Thu, Dec 08, 2022 at 10:32:32AM +0800, Ye Bin wrote:
> From: Ye Bin <yebin10@huawei.com>
> 
> Prepend ext4 prefix to function names of xattr_find_entry() and
> __xattr_check_inode() for consistency with other functions in ext4
> xattr module.

The reason why these function names don't have the ext4 prefix is
because functions are static, so there is need to worry about
namespace pollution.

For static functions, there is no real need to add the ext4 prefix, so
why not keep the functions shorter?  Yes, there are places where
static functions have the ext4 prefix.  The main reason why we have
changed it is that it's not worth the code churn.  Similarly, adding
the ext4 prefix is *definitely* not worth the code churn.

Cheers,

					- Ted
diff mbox series

Patch

diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c
index 23cfefc6d262..99dacb0393fa 100644
--- a/fs/ext4/xattr.c
+++ b/fs/ext4/xattr.c
@@ -260,8 +260,9 @@  __ext4_xattr_check_block(struct inode *inode, struct buffer_head *bh,
 
 
 static int
-__xattr_check_inode(struct inode *inode, struct ext4_xattr_ibody_header *header,
-			 void *end, const char *function, unsigned int line)
+__ext4_xattr_check_inode(struct inode *inode,
+			 struct ext4_xattr_ibody_header *header, void *end,
+			 const char *function, unsigned int line)
 {
 	int error = -EFSCORRUPTED;
 
@@ -276,12 +277,12 @@  __xattr_check_inode(struct inode *inode, struct ext4_xattr_ibody_header *header,
 	return error;
 }
 
-#define xattr_check_inode(inode, header, end) \
-	__xattr_check_inode((inode), (header), (end), __func__, __LINE__)
+#define ext4_xattr_check_inode(inode, header, end) \
+	__ext4_xattr_check_inode((inode), (header), (end), __func__, __LINE__)
 
 static int
-xattr_find_entry(struct inode *inode, struct ext4_xattr_entry **pentry,
-		 void *end, int name_index, const char *name, int sorted)
+ext4_xattr_find_entry(struct inode *inode, struct ext4_xattr_entry **pentry,
+		      void *end, int name_index, const char *name, int sorted)
 {
 	struct ext4_xattr_entry *entry, *next;
 	size_t name_len;
@@ -554,7 +555,7 @@  ext4_xattr_block_get(struct inode *inode, int name_index, const char *name,
 	ext4_xattr_block_cache_insert(ea_block_cache, bh);
 	entry = BFIRST(bh);
 	end = bh->b_data + bh->b_size;
-	error = xattr_find_entry(inode, &entry, end, name_index, name, 1);
+	error = ext4_xattr_find_entry(inode, &entry, end, name_index, name, 1);
 	if (error)
 		goto cleanup;
 	size = le32_to_cpu(entry->e_value_size);
@@ -605,11 +606,11 @@  ext4_xattr_ibody_get(struct inode *inode, int name_index, const char *name,
 	raw_inode = ext4_raw_inode(&iloc);
 	header = IHDR(inode, raw_inode);
 	end = (void *)raw_inode + EXT4_SB(inode->i_sb)->s_inode_size;
-	error = xattr_check_inode(inode, header, end);
+	error = ext4_xattr_check_inode(inode, header, end);
 	if (error)
 		goto cleanup;
 	entry = IFIRST(header);
-	error = xattr_find_entry(inode, &entry, end, name_index, name, 0);
+	error = ext4_xattr_find_entry(inode, &entry, end, name_index, name, 0);
 	if (error)
 		goto cleanup;
 	size = le32_to_cpu(entry->e_value_size);
@@ -750,7 +751,7 @@  ext4_xattr_ibody_list(struct dentry *dentry, char *buffer, size_t buffer_size)
 	raw_inode = ext4_raw_inode(&iloc);
 	header = IHDR(inode, raw_inode);
 	end = (void *)raw_inode + EXT4_SB(inode->i_sb)->s_inode_size;
-	error = xattr_check_inode(inode, header, end);
+	error = ext4_xattr_check_inode(inode, header, end);
 	if (error)
 		goto cleanup;
 	error = ext4_xattr_list_entries(dentry, IFIRST(header),
@@ -836,7 +837,7 @@  int ext4_get_inode_usage(struct inode *inode, qsize_t *usage)
 		raw_inode = ext4_raw_inode(&iloc);
 		header = IHDR(inode, raw_inode);
 		end = (void *)raw_inode + EXT4_SB(inode->i_sb)->s_inode_size;
-		ret = xattr_check_inode(inode, header, end);
+		ret = ext4_xattr_check_inode(inode, header, end);
 		if (ret)
 			goto out;
 
@@ -1839,8 +1840,8 @@  ext4_xattr_block_find(struct inode *inode, struct ext4_xattr_info *i,
 		bs->s.first = BFIRST(bs->bh);
 		bs->s.end = bs->bh->b_data + bs->bh->b_size;
 		bs->s.here = bs->s.first;
-		error = xattr_find_entry(inode, &bs->s.here, bs->s.end,
-					 i->name_index, i->name, 1);
+		error = ext4_xattr_find_entry(inode, &bs->s.here, bs->s.end,
+					      i->name_index, i->name, 1);
 		if (error && error != -ENODATA)
 			return error;
 		bs->s.not_found = error;
@@ -2199,12 +2200,12 @@  int ext4_xattr_ibody_find(struct inode *inode, struct ext4_xattr_info *i,
 	is->s.here = is->s.first;
 	is->s.end = (void *)raw_inode + EXT4_SB(inode->i_sb)->s_inode_size;
 	if (ext4_test_inode_state(inode, EXT4_STATE_XATTR)) {
-		error = xattr_check_inode(inode, header, is->s.end);
+		error = ext4_xattr_check_inode(inode, header, is->s.end);
 		if (error)
 			return error;
 		/* Find the named attribute. */
-		error = xattr_find_entry(inode, &is->s.here, is->s.end,
-					 i->name_index, i->name, 0);
+		error = ext4_xattr_find_entry(inode, &is->s.here, is->s.end,
+					      i->name_index, i->name, 0);
 		if (error && error != -ENODATA)
 			return error;
 		is->s.not_found = error;
@@ -2719,7 +2720,7 @@  int ext4_expand_extra_isize_ea(struct inode *inode, int new_extra_isize,
 	min_offs = end - base;
 	total_ino = sizeof(struct ext4_xattr_ibody_header) + sizeof(u32);
 
-	error = xattr_check_inode(inode, header, end);
+	error = ext4_xattr_check_inode(inode, header, end);
 	if (error)
 		goto cleanup;