From: Bill Nottingham <[email protected]>
This patch moves code out of fs/xattr.c:listxattr into a new function -
vfs_listxattr. The code for vfs_listxattr was originally submitted by Bill
Nottingham <[email protected]> to Unionfs.
Signed-off-by: Josef "Jeff" Sipek <[email protected]>
diff -r 0231458fbb78 fs/xattr.c
--- a/fs/xattr.c Sat Oct 07 16:46:17 2006 -0400
+++ b/fs/xattr.c Sat Oct 07 17:36:18 2006 -0400
@@ -135,6 +135,26 @@ vfs_getxattr(struct dentry *dentry, char
}
EXPORT_SYMBOL_GPL(vfs_getxattr);
+ssize_t
+vfs_listxattr(struct dentry *d, char *list, size_t size)
+{
+ ssize_t error;
+
+ error = security_inode_listxattr(d);
+ if (error)
+ return error;
+ error = -EOPNOTSUPP;
+ if (d->d_inode->i_op && d->d_inode->i_op->listxattr) {
+ error = d->d_inode->i_op->listxattr(d, list, size);
+ } else {
+ error = security_inode_listsecurity(d->d_inode, list, size);
+ if (size && error > size)
+ error = -ERANGE;
+ }
+ return error;
+}
+EXPORT_SYMBOL_GPL(vfs_listxattr);
+
int
vfs_removexattr(struct dentry *dentry, char *name)
{
@@ -346,17 +366,7 @@ listxattr(struct dentry *d, char __user
return -ENOMEM;
}
- error = security_inode_listxattr(d);
- if (error)
- goto out;
- error = -EOPNOTSUPP;
- if (d->d_inode->i_op && d->d_inode->i_op->listxattr) {
- error = d->d_inode->i_op->listxattr(d, klist, size);
- } else {
- error = security_inode_listsecurity(d->d_inode, klist, size);
- if (size && error > size)
- error = -ERANGE;
- }
+ error = vfs_listxattr(d, klist, size);
if (error > 0) {
if (size && copy_to_user(list, klist, error))
error = -EFAULT;
@@ -365,7 +375,6 @@ listxattr(struct dentry *d, char __user
than XATTR_LIST_MAX bytes. Not possible. */
error = -E2BIG;
}
-out:
kfree(klist);
return error;
}
diff -r 0231458fbb78 include/linux/xattr.h
--- a/include/linux/xattr.h Sat Oct 07 16:46:17 2006 -0400
+++ b/include/linux/xattr.h Sat Oct 07 17:32:43 2006 -0400
@@ -41,6 +41,7 @@ struct xattr_handler {
};
ssize_t vfs_getxattr(struct dentry *, char *, void *, size_t);
+ssize_t vfs_listxattr(struct dentry *d, char *list, size_t size);
int vfs_setxattr(struct dentry *, char *, void *, size_t, int);
int vfs_removexattr(struct dentry *, char *);
--
UNIX is user-friendly ... it's just selective about who it's friends are
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