[PATCH] remove jfs xattr permission checks
remove checks now in the VFS
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/fs/jfs/xattr.c b/fs/jfs/xattr.c
index 9dde36a..952da5f 100644
--- a/fs/jfs/xattr.c
+++ b/fs/jfs/xattr.c
@@ -758,36 +758,23 @@
static int can_set_xattr(struct inode *inode, const char *name,
const void *value, size_t value_len)
{
- if (IS_RDONLY(inode))
- return -EROFS;
-
- if (IS_IMMUTABLE(inode) || IS_APPEND(inode))
- return -EPERM;
-
- if(strncmp(name, XATTR_SYSTEM_PREFIX, XATTR_SYSTEM_PREFIX_LEN) == 0)
- /*
- * "system.*"
- */
+ if (!strncmp(name, XATTR_SYSTEM_PREFIX, XATTR_SYSTEM_PREFIX_LEN))
return can_set_system_xattr(inode, name, value, value_len);
- if(strncmp(name, XATTR_TRUSTED_PREFIX, XATTR_TRUSTED_PREFIX_LEN) == 0)
- return (capable(CAP_SYS_ADMIN) ? 0 : -EPERM);
-
-#ifdef CONFIG_JFS_SECURITY
- if (strncmp(name, XATTR_SECURITY_PREFIX, XATTR_SECURITY_PREFIX_LEN)
- == 0)
- return 0; /* Leave it to the security module */
-#endif
-
- if((strncmp(name, XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN) != 0) &&
- (strncmp(name, XATTR_OS2_PREFIX, XATTR_OS2_PREFIX_LEN) != 0))
+ /*
+ * Don't allow setting an attribute in an unknown namespace.
+ */
+ if (strncmp(name, XATTR_TRUSTED_PREFIX, XATTR_TRUSTED_PREFIX_LEN) &&
+ strncmp(name, XATTR_SECURITY_PREFIX, XATTR_SECURITY_PREFIX_LEN) &&
+ strncmp(name, XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN) &&
+ strncmp(name, XATTR_OS2_PREFIX, XATTR_OS2_PREFIX_LEN))
return -EOPNOTSUPP;
if (!S_ISREG(inode->i_mode) &&
(!S_ISDIR(inode->i_mode) || inode->i_mode &S_ISVTX))
return -EPERM;
- return permission(inode, MAY_WRITE, NULL);
+ return 0;
}
int __jfs_setxattr(tid_t tid, struct inode *inode, const char *name,
@@ -957,22 +944,6 @@
return rc;
}
-static int can_get_xattr(struct inode *inode, const char *name)
-{
-#ifdef CONFIG_JFS_SECURITY
- if(strncmp(name, XATTR_SECURITY_PREFIX, XATTR_SECURITY_PREFIX_LEN) == 0)
- return 0;
-#endif
-
- if(strncmp(name, XATTR_TRUSTED_PREFIX, XATTR_TRUSTED_PREFIX_LEN) == 0)
- return (capable(CAP_SYS_ADMIN) ? 0 : -EPERM);
-
- if(strncmp(name, XATTR_SYSTEM_PREFIX, XATTR_SYSTEM_PREFIX_LEN) == 0)
- return 0;
-
- return permission(inode, MAY_READ, NULL);
-}
-
ssize_t __jfs_getxattr(struct inode *inode, const char *name, void *data,
size_t buf_size)
{
@@ -983,12 +954,8 @@
ssize_t size;
int namelen = strlen(name);
char *os2name = NULL;
- int rc;
char *value;
- if ((rc = can_get_xattr(inode, name)))
- return rc;
-
if (strncmp(name, XATTR_OS2_PREFIX, XATTR_OS2_PREFIX_LEN) == 0) {
os2name = kmalloc(namelen - XATTR_OS2_PREFIX_LEN + 1,
GFP_KERNEL);