提交 3adf654d 编写于 作者: S Sage Weil

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: NSage Weil <sage@inktank.com>
Reviewed-by: NSam Lang <sam.lang@inktank.com>
上级 8860147a
......@@ -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 @@ int ceph_setxattr(struct dentry *dentry, const char *name,
do_sync:
spin_unlock(&ci->i_ceph_lock);
do_sync_unlocked:
err = ceph_sync_setxattr(dentry, name, value, size, flags);
out:
kfree(newname);
......
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