X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=blobdiff_plain;f=lustre%2Fmdt%2Fmdt_open.c;h=97918c48240074a1bdeeabe77ec77ae0a2df3b8e;hp=c779056d75c5aab5eac5c1f13ff1bef07e185dc3;hb=2bc5bcb7efa247fcd8cc65d013ffc9f6c33dd788;hpb=527ffb003f20db73c463951416b408bff6e8e4cf

diff --git a/lustre/mdt/mdt_open.c b/lustre/mdt/mdt_open.c
index c779056..97918c4 100644
--- a/lustre/mdt/mdt_open.c
+++ b/lustre/mdt/mdt_open.c
@@ -755,8 +755,18 @@ static int mdt_mfd_open(struct mdt_thread_info *info, struct mdt_object *p,
 
         rc = mo_open(info->mti_env, mdt_object_child(o),
                      created ? flags | MDS_OPEN_CREATED : flags);
-        if (rc)
-                GOTO(err_out, rc);
+	if (rc != 0) {
+		/* If we allow the client to chgrp (CFS_SETGRP_PERM), but the
+		 * client does not know which suppgid should be sent to the MDS,
+		 * or some other(s) changed the target file's GID after this RPC
+		 * sent to the MDS with the suppgid as the original GID, then we
+		 * give the client another chance to send the right suppgid. */
+		if (rc == -EACCES &&
+		    allow_client_chgrp(info, lu_ucred(info->mti_env)))
+			mdt_set_disposition(info, rep, DISP_OPEN_DENY);
+
+		GOTO(err_out, rc);
+	}
 
 	mfd = mdt_mfd_new(med);
 	if (mfd == NULL)