lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

sanitize xattr handler prototypes

Browse Source 
Add a flags argument to struct xattr_handler and pass it to all xattr
handler methods.  This allows using the same methods for multiple
handlers, e.g. for the ACL methods which perform exactly the same action
for the access and default ACLs, just using a different underlying
attribute.  With a little more groundwork it'll also allow sharing the
methods for the regular user/trusted/secure handlers in extN, ocfs2 and
jffs2 like it's already done for xfs in this patch.

Also change the inode argument to the handlers to a dentry to allow
using the handlers mechnism for filesystems that require it later,
e.g. cifs.

[with GFS2 bits updated by Steven Whitehouse <swhiteho@redhat.com>]

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: James Morris <jmorris@namei.org>
Acked-by: Joel Becker <joel.becker@oracle.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Christoph Hellwig
2009-11-13 09:52:56 +00:00
committed by Al Viro
parent ef26ca97e8
commit 431547b3c4
39 changed files with 533 additions and 815 deletions
Download Patch File Download Diff File Expand all files Collapse all files

21
fs/reiserfs/xattr_user.c
View File

@ -7,34 +7,35 @@
#include <asm/uaccess.h>
static int
user_get(struct inode *inode, const char *name, void *buffer, size_t size)
user_get(struct dentry *dentry, const char *name, void *buffer, size_t size,
int handler_flags)
{
if (strlen(name) < sizeof(XATTR_USER_PREFIX))
return -EINVAL;
if (!reiserfs_xattrs_user(inode->i_sb))
if (!reiserfs_xattrs_user(dentry->d_sb))
return -EOPNOTSUPP;
return reiserfs_xattr_get(inode, name, buffer, size);
return reiserfs_xattr_get(dentry->d_inode, name, buffer, size);
}
static int
user_set(struct inode *inode, const char *name, const void *buffer,
size_t size, int flags)
user_set(struct dentry *dentry, const char *name, const void *buffer,
size_t size, int flags, int handler_flags)
{
if (strlen(name) < sizeof(XATTR_USER_PREFIX))
return -EINVAL;
if (!reiserfs_xattrs_user(inode->i_sb))
if (!reiserfs_xattrs_user(dentry->d_sb))
return -EOPNOTSUPP;
return reiserfs_xattr_set(inode, name, buffer, size, flags);
return reiserfs_xattr_set(dentry->d_inode, name, buffer, size, flags);
}
static size_t user_list(struct inode *inode, char *list, size_t list_size,
const char *name, size_t name_len)
static size_t user_list(struct dentry *dentry, char *list, size_t list_size,
const char *name, size_t name_len, int handler_flags)
{
const size_t len = name_len + 1;
if (!reiserfs_xattrs_user(inode->i_sb))
if (!reiserfs_xattrs_user(dentry->d_sb))
return 0;
if (list && len <= list_size) {
memcpy(list, name, name_len);