Merge branch 'for-3.11' of git://linux-nfs.org/~bfields/linux

[cascardo/linux.git] / fs / nfsd / vfs.c

diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index a6bc8a7..8ff6a00 100644 (file)
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -28,6 +28,7 @@
 #include <asm/uaccess.h>
 #include <linux/exportfs.h>
 #include <linux/writeback.h>
+#include <linux/security.h>
 
 #ifdef CONFIG_NFSD_V3
 #include "xdr3.h"
@@ -621,6 +622,33 @@ int nfsd4_is_junction(struct dentry *dentry)
                return 0;
        return 1;
 }
+#ifdef CONFIG_NFSD_V4_SECURITY_LABEL
+__be32 nfsd4_set_nfs4_label(struct svc_rqst *rqstp, struct svc_fh *fhp,
+               struct xdr_netobj *label)
+{
+       __be32 error;
+       int host_error;
+       struct dentry *dentry;
+
+       error = fh_verify(rqstp, fhp, 0 /* S_IFREG */, NFSD_MAY_SATTR);
+       if (error)
+               return error;
+
+       dentry = fhp->fh_dentry;
+
+       mutex_lock(&dentry->d_inode->i_mutex);
+       host_error = security_inode_setsecctx(dentry, label->data, label->len);
+       mutex_unlock(&dentry->d_inode->i_mutex);
+       return nfserrno(host_error);
+}
+#else
+__be32 nfsd4_set_nfs4_label(struct svc_rqst *rqstp, struct svc_fh *fhp,
+               struct xdr_netobj *label)
+{
+       return nfserr_notsupp;
+}
+#endif
+
 #endif /* defined(CONFIG_NFSD_V4) */
 
 #ifdef CONFIG_NFSD_V3