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authorJeff Mahoney <jeffm@suse.com>2009-03-30 20:02:38 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2009-03-30 21:16:38 +0200
commit48b32a3553a54740d236b79a90f20147a25875e3 (patch)
treefaf6807facb5825608469a9e33c9127f90b974df /fs/reiserfs/xattr_security.c
parentreiserfs: remove i_has_xattr_dir (diff)
downloadlinux-48b32a3553a54740d236b79a90f20147a25875e3.tar.xz
linux-48b32a3553a54740d236b79a90f20147a25875e3.zip
reiserfs: use generic xattr handlers
Christoph Hellwig had asked me quite some time ago to port the reiserfs xattrs to the generic xattr interface. This patch replaces the reiserfs-specific xattr handling code with the generic struct xattr_handler. However, since reiserfs doesn't split the prefix and name when accessing xattrs, it can't leverage generic_{set,get,list,remove}xattr without needlessly reconstructing the name on the back end. Update 7/26/07: Added missing dput() to deletion path. Update 8/30/07: Added missing mark_inode_dirty when i_mode is used to represent an ACL and no previous ACL existed. Signed-off-by: Jeff Mahoney <jeffm@suse.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/reiserfs/xattr_security.c')
-rw-r--r--fs/reiserfs/xattr_security.c26
1 files changed, 8 insertions, 18 deletions
diff --git a/fs/reiserfs/xattr_security.c b/fs/reiserfs/xattr_security.c
index 1958b361c35d..2aacf1fe69fd 100644
--- a/fs/reiserfs/xattr_security.c
+++ b/fs/reiserfs/xattr_security.c
@@ -31,35 +31,25 @@ security_set(struct inode *inode, const char *name, const void *buffer,
return reiserfs_xattr_set(inode, name, buffer, size, flags);
}
-static int security_del(struct inode *inode, const char *name)
+static size_t security_list(struct inode *inode, char *list, size_t list_len,
+ const char *name, size_t namelen)
{
- if (strlen(name) < sizeof(XATTR_SECURITY_PREFIX))
- return -EINVAL;
-
- if (IS_PRIVATE(inode))
- return -EPERM;
-
- return 0;
-}
-
-static int
-security_list(struct inode *inode, const char *name, int namelen, char *out)
-{
- int len = namelen;
+ const size_t len = namelen + 1;
if (IS_PRIVATE(inode))
return 0;
- if (out)
- memcpy(out, name, len);
+ if (list && len <= list_len) {
+ memcpy(list, name, namelen);
+ list[namelen] = '\0';
+ }
return len;
}
-struct reiserfs_xattr_handler security_handler = {
+struct xattr_handler reiserfs_xattr_security_handler = {
.prefix = XATTR_SECURITY_PREFIX,
.get = security_get,
.set = security_set,
- .del = security_del,
.list = security_list,
};