b=21877 protect modification of request flag's bitfield with rq_lock

[fs/lustre-release.git] / lustre / ptlrpc / sec.c

diff --git a/lustre/ptlrpc/sec.c b/lustre/ptlrpc/sec.c
index 84669c3..defe085 100644 (file)
--- a/lustre/ptlrpc/sec.c
+++ b/lustre/ptlrpc/sec.c
@@ -667,7 +667,9 @@ again:
         }
 
         if (unlikely(cfs_test_bit(PTLRPC_CTX_ERROR_BIT, &ctx->cc_flags))) {
+                cfs_spin_lock(&req->rq_lock);
                 req->rq_err = 1;
+                cfs_spin_unlock(&req->rq_lock);
                 req_off_ctx_list(req, ctx);
                 RETURN(-EPERM);
         }
@@ -709,7 +711,9 @@ again:
                  * don't switch ctx if import was deactivated
                  */
                 if (req->rq_import->imp_deactive) {
+                        cfs_spin_lock(&req->rq_lock);
                         req->rq_err = 1;
+                        cfs_spin_unlock(&req->rq_lock);
                         RETURN(-EINTR);
                 }
 
@@ -718,7 +722,9 @@ again:
                         LASSERT(ctx == req->rq_cli_ctx);
                         CERROR("req %p: failed to replace dead ctx %p: %d\n",
                                 req, ctx, rc);
+                        cfs_spin_lock(&req->rq_lock);
                         req->rq_err = 1;
+                        cfs_spin_unlock(&req->rq_lock);
                         RETURN(rc);
                 }