[PATCH] ceph: don't null-terminate xattr values

[Alex Elder <elder@dreamhost.com>]

For some reason, ceph_setxattr() allocates an extra byte in which a
'\0' is stored past the end of an extended attribute value.  This is
not needed, and is potentially misleading, so get rid of it.

Signed-off-by: Alex Elder <elder@dreamhost.com>
---
  fs/ceph/xattr.c |    4 +---
  1 files changed, 1 insertions(+), 3 deletions(-)

diff --git a/fs/ceph/xattr.c b/fs/ceph/xattr.c
index 9e6734e..b98b91d 100644
--- a/fs/ceph/xattr.c
+++ b/fs/ceph/xattr.c
@@ -730,11 +730,9 @@ int ceph_setxattr(struct dentry *dentry, const char 
*name,
  		goto out;

  	if (val_len) {
-		newval = kmalloc(val_len + 1, GFP_NOFS);
+		newval = kmemdup(value, val_len, GFP_NOFS);
  		if (!newval)
  			goto out;
-		memcpy(newval, value, val_len);
-		newval[val_len] = '\0';
  	}

  	xattr = kmalloc(sizeof(struct ceph_inode_xattr), GFP_NOFS);
-- 
1.7.5.4