From: Leon Romanovsky <leonro@mellanox.com>
Date: Thu, 28 Mar 2019 13:12:58 +0000 (+0200)
Subject: RDMA/core: Support object allocation in atomic context
X-Git-Tag: v5.2-rc1~114^2~90
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=f6316032fd3243d3544603d94f237b976f90bb73;p=thirdparty%2Fkernel%2Flinux.git

RDMA/core: Support object allocation in atomic context

AH objects are allocated in atomic context and those allocations should
be done with GFP_ATOMIC.

Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
---

diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index 0e24f6b6c61da..7e965bc06477d 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -59,6 +59,8 @@
 #include <linux/mmu_notifier.h>
 #include <linux/uaccess.h>
 #include <linux/cgroup_rdma.h>
+#include <linux/irqflags.h>
+#include <linux/preempt.h>
 #include <uapi/rdma/ib_user_verbs.h>
 #include <rdma/restrack.h>
 #include <uapi/rdma/rdma_user_ioctl.h>
@@ -2281,8 +2283,11 @@ struct uverbs_attr_bundle;
 			 !__same_type(((struct drv_struct *)NULL)->member,     \
 				      struct ib_struct)))
 
+#define rdma_zalloc_drv_obj_gfp(ib_dev, ib_type, gfp)                         \
+	((struct ib_type *)kzalloc(ib_dev->ops.size_##ib_type, gfp))
+
 #define rdma_zalloc_drv_obj(ib_dev, ib_type)                                   \
-	((struct ib_type *)kzalloc(ib_dev->ops.size_##ib_type, GFP_KERNEL))
+	rdma_zalloc_drv_obj_gfp(ib_dev, ib_type, GFP_KERNEL)
 
 #define DECLARE_RDMA_OBJ_SIZE(ib_struct) size_t size_##ib_struct