Commit d561d4dd authored by Chengguang Xu's avatar Chengguang Xu Committed by Jan Kara
Browse files

ext2: introduce new helper for xattr entry comparison 



Introduce new helper ext2_xattr_cmp_entry() for xattr
entry comparison.

Signed-off-by: default avatarChengguang Xu <cgxu519@zoho.com.cn>
Signed-off-by: default avatarJan Kara <jack@suse.cz>
parent 9bb1d7a6

fs/ext2/xattr.c

+18 −7
Original line number Diff line number Diff line
@@ -166,6 +166,21 @@ ext2_xattr_entry_valid(struct ext2_xattr_entry *entry, 
	return true;

}



static int

ext2_xattr_cmp_entry(int name_index, size_t name_len, const char *name,

		     struct ext2_xattr_entry *entry)

{

	int cmp;



	cmp = name_index - entry->e_name_index;

	if (!cmp)

		cmp = name_len - entry->e_name_len;

	if (!cmp)

		cmp = memcmp(name, entry->e_name, name_len);



	return cmp;

}



/*

 * ext2_xattr_get()

 *
@@ -452,13 +467,9 @@ ext2_xattr_set(struct inode *inode, int name_index, const char *name, 
					min_offs = offs;

			}

			if (not_found > 0) {

				not_found = name_index - last->e_name_index;

				if (!not_found)

					not_found = name_len - last->e_name_len;

				if (!not_found) {

					not_found = memcmp(name, last->e_name,

							   name_len);

				}

				not_found = ext2_xattr_cmp_entry(name_index,

								 name_len,

								 name, last);

				if (not_found <= 0)

					here = last;

			}