From 3adf654ddbc355c23d75c6684128d4b067a7b792 Mon Sep 17 00:00:00 2001 From: Sage Weil Date: Thu, 31 Jan 2013 11:53:41 -0800 Subject: [PATCH] ceph: pass unhandled ceph.* setxattrs through to MDS If we do not specifically understand a setxattr on a ceph.* virtual xattr, send it through to the MDS. This allows us to implement new functionality via the MDS without direct support on the client side. Signed-off-by: Sage Weil Reviewed-by: Sam Lang --- fs/ceph/xattr.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/fs/ceph/xattr.c b/fs/ceph/xattr.c index 43063d0..edc47de 100644 --- a/fs/ceph/xattr.c +++ b/fs/ceph/xattr.c @@ -777,6 +777,10 @@ int ceph_setxattr(struct dentry *dentry, const char *name, if (vxattr && vxattr->readonly) return -EOPNOTSUPP; + /* pass any unhandled ceph.* xattrs through to the MDS */ + if (!strncmp(name, XATTR_CEPH_PREFIX, XATTR_CEPH_PREFIX_LEN)) + goto do_sync_unlocked; + /* preallocate memory for xattr name, value, index node */ err = -ENOMEM; newname = kmemdup(name, name_len + 1, GFP_NOFS); @@ -833,6 +837,7 @@ retry: do_sync: spin_unlock(&ci->i_ceph_lock); +do_sync_unlocked: err = ceph_sync_setxattr(dentry, name, value, size, flags); out: kfree(newname); -- 2.7.4