hfs: Switch to generic xattr handlers
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/hfs/attr.c b/fs/hfs/attr.c
index d9a8691..0933600 100644
--- a/fs/hfs/attr.c
+++ b/fs/hfs/attr.c
@@ -13,9 +13,13 @@
#include "hfs_fs.h"
#include "btree.h"
-int hfs_setxattr(struct dentry *unused, struct inode *inode,
- const char *name, const void *value,
- size_t size, int flags)
+enum hfs_xattr_type {
+ HFS_TYPE,
+ HFS_CREATOR,
+};
+
+static int __hfs_setxattr(struct inode *inode, enum hfs_xattr_type type,
+ const void *value, size_t size, int flags)
{
struct hfs_find_data fd;
hfs_cat_rec rec;
@@ -36,18 +40,22 @@
sizeof(struct hfs_cat_file));
file = &rec.file;
- if (!strcmp(name, "hfs.type")) {
+ switch (type) {
+ case HFS_TYPE:
if (size == 4)
memcpy(&file->UsrWds.fdType, value, 4);
else
res = -ERANGE;
- } else if (!strcmp(name, "hfs.creator")) {
+ break;
+
+ case HFS_CREATOR:
if (size == 4)
memcpy(&file->UsrWds.fdCreator, value, 4);
else
res = -ERANGE;
- } else
- res = -EOPNOTSUPP;
+ break;
+ }
+
if (!res)
hfs_bnode_write(fd.bnode, &rec, fd.entryoffset,
sizeof(struct hfs_cat_file));
@@ -56,8 +64,8 @@
return res;
}
-ssize_t hfs_getxattr(struct dentry *unused, struct inode *inode,
- const char *name, void *value, size_t size)
+static ssize_t __hfs_getxattr(struct inode *inode, enum hfs_xattr_type type,
+ void *value, size_t size)
{
struct hfs_find_data fd;
hfs_cat_rec rec;
@@ -80,41 +88,64 @@
}
file = &rec.file;
- if (!strcmp(name, "hfs.type")) {
+ switch (type) {
+ case HFS_TYPE:
if (size >= 4) {
memcpy(value, &file->UsrWds.fdType, 4);
res = 4;
} else
res = size ? -ERANGE : 4;
- } else if (!strcmp(name, "hfs.creator")) {
+ break;
+
+ case HFS_CREATOR:
if (size >= 4) {
memcpy(value, &file->UsrWds.fdCreator, 4);
res = 4;
} else
res = size ? -ERANGE : 4;
- } else
- res = -ENODATA;
+ break;
+ }
+
out:
if (size)
hfs_find_exit(&fd);
return res;
}
-#define HFS_ATTRLIST_SIZE (sizeof("hfs.creator")+sizeof("hfs.type"))
-
-ssize_t hfs_listxattr(struct dentry *dentry, char *buffer, size_t size)
+static int hfs_xattr_get(const struct xattr_handler *handler,
+ struct dentry *unused, struct inode *inode,
+ const char *name, void *value, size_t size)
{
- struct inode *inode = d_inode(dentry);
+ return __hfs_getxattr(inode, handler->flags, value, size);
+}
- if (!S_ISREG(inode->i_mode) || HFS_IS_RSRC(inode))
+static int hfs_xattr_set(const struct xattr_handler *handler,
+ struct dentry *unused, struct inode *inode,
+ const char *name, const void *value, size_t size,
+ int flags)
+{
+ if (!value)
return -EOPNOTSUPP;
- if (!buffer || !size)
- return HFS_ATTRLIST_SIZE;
- if (size < HFS_ATTRLIST_SIZE)
- return -ERANGE;
- strcpy(buffer, "hfs.type");
- strcpy(buffer + sizeof("hfs.type"), "hfs.creator");
-
- return HFS_ATTRLIST_SIZE;
+ return __hfs_setxattr(inode, handler->flags, value, size, flags);
}
+
+static const struct xattr_handler hfs_creator_handler = {
+ .name = "hfs.creator",
+ .flags = HFS_CREATOR,
+ .get = hfs_xattr_get,
+ .set = hfs_xattr_set,
+};
+
+static const struct xattr_handler hfs_type_handler = {
+ .name = "hfs.type",
+ .flags = HFS_TYPE,
+ .get = hfs_xattr_get,
+ .set = hfs_xattr_set,
+};
+
+const struct xattr_handler *hfs_xattr_handlers[] = {
+ &hfs_creator_handler,
+ &hfs_type_handler,
+ NULL
+};