Signed-off-by: Andreas Gruenbacher <agruenba@xxxxxxxxxx>
---
fs/hfs/attr.c | 83 +++++++++++++++++++++++++++++++++++++++------------------
fs/hfs/hfs_fs.h | 6 +----
fs/hfs/inode.c | 7 ++---
fs/hfs/super.c | 1 +
4 files changed, 63 insertions(+), 34 deletions(-)
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 @@ int hfs_setxattr(struct dentry *unused, struct inode *inode,
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 @@ out:
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 @@ ssize_t hfs_getxattr(struct dentry *unused, struct inode *inode,
}
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
+};
diff --git a/fs/hfs/hfs_fs.h b/fs/hfs/hfs_fs.h
index 16f5172..4cdec5a 100644
--- a/fs/hfs/hfs_fs.h
+++ b/fs/hfs/hfs_fs.h
@@ -212,11 +212,7 @@ extern void hfs_evict_inode(struct inode *);
extern void hfs_delete_inode(struct inode *);
/* attr.c */
-extern int hfs_setxattr(struct dentry *dentry, struct inode *inode, const char *name,
- const void *value, size_t size, int flags);
-extern ssize_t hfs_getxattr(struct dentry *dentry, struct inode *inode,
- const char *name, void *value, size_t size);
-extern ssize_t hfs_listxattr(struct dentry *dentry, char *buffer, size_t size);
+extern const struct xattr_handler *hfs_xattr_handlers[];
/* mdb.c */
extern int hfs_mdb_get(struct super_block *);
diff --git a/fs/hfs/inode.c b/fs/hfs/inode.c
index c6a3241..7f44f1a 100644
--- a/fs/hfs/inode.c
+++ b/fs/hfs/inode.c
@@ -15,6 +15,7 @@
#include <linux/mpage.h>
#include <linux/sched.h>
#include <linux/uio.h>
+#include <linux/xattr.h>
#include "hfs_fs.h"
#include "btree.h"
@@ -687,7 +688,7 @@ static const struct file_operations hfs_file_operations = {
static const struct inode_operations hfs_file_inode_operations = {
.lookup = hfs_file_lookup,
.setattr = hfs_inode_setattr,
- .setxattr = hfs_setxattr,
- .getxattr = hfs_getxattr,
- .listxattr = hfs_listxattr,
+ .setxattr = generic_setxattr,
+ .getxattr = generic_getxattr,
+ .listxattr = generic_listxattr,
};
diff --git a/fs/hfs/super.c b/fs/hfs/super.c
index 1ca95c2..bf6304a 100644
--- a/fs/hfs/super.c
+++ b/fs/hfs/super.c
@@ -406,6 +406,7 @@ static int hfs_fill_super(struct super_block *sb, void *data, int silent)
}
sb->s_op = &hfs_super_operations;
+ sb->s_xattr = hfs_xattr_handlers;
sb->s_flags |= MS_NODIRATIME;
mutex_init(&sbi->bitmap_lock);
--
2.7.4
--
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