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Commit 3adf654d authored by Sage Weil's avatar Sage Weil
Browse files

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: default avatarSage Weil <sage@inktank.com>
Reviewed-by: default avatarSam Lang <sam.lang@inktank.com>
parent 8860147a

fs/ceph/xattr.c

+5 −0
Original line number Diff line number Diff line
@@ -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);