linux-kernel - [PATCH 6/7] RDMA/umem: don't abuse current->group

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Message-ID: <aTV1pbftBkH8n4kh@redhat.com>
Date: Sun, 7 Dec 2025 13:40:05 +0100
From: Oleg Nesterov <oleg@...hat.com>
To: Todd Kjos <tkjos@...roid.com>, Martijn Coenen <maco@...roid.com>,
	Joel Fernandes <joelagnelf@...dia.com>,
	Christian Brauner <brauner@...nel.org>,
	Carlos Llamas <cmllamas@...gle.com>,
	Suren Baghdasaryan <surenb@...gle.com>,
	Felix Kuehling <Felix.Kuehling@....com>,
	Alex Deucher <alexander.deucher@....com>,
	Christian König <christian.koenig@....com>,
	David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
	Boris Brezillon <boris.brezillon@...labora.com>,
	Rob Herring <robh@...nel.org>, Steven Price <steven.price@....com>,
	Adrián Larumbe <adrian.larumbe@...labora.com>,
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
	Maxime Ripard <mripard@...nel.org>,
	Thomas Zimmermann <tzimmermann@...e.de>,
	Liviu Dudau <liviu.dudau@....com>, Jason Gunthorpe <jgg@...pe.ca>,
	Leon Romanovsky <leon@...nel.org>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>
Cc: linux-kernel@...r.kernel.org, amd-gfx@...ts.freedesktop.org,
	dri-devel@...ts.freedesktop.org, linux-rdma@...r.kernel.org,
	netdev@...r.kernel.org
Subject: [PATCH 6/7] RDMA/umem: don't abuse current->group_leader

Cleanup and preparation to simplify the next changes.

Use current->tgid instead of current->group_leader->pid.

Signed-off-by: Oleg Nesterov <oleg@...hat.com>
---
 drivers/infiniband/core/umem_odp.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/infiniband/core/umem_odp.c b/drivers/infiniband/core/umem_odp.c
index 572a91a62a7b..32267258a19c 100644
--- a/drivers/infiniband/core/umem_odp.c
+++ b/drivers/infiniband/core/umem_odp.c
@@ -149,7 +149,7 @@ struct ib_umem_odp *ib_umem_odp_alloc_implicit(struct ib_device *device,
 	umem->owning_mm = current->mm;
 	umem_odp->page_shift = PAGE_SHIFT;
 
-	umem_odp->tgid = get_task_pid(current->group_leader, PIDTYPE_PID);
+	umem_odp->tgid = get_task_pid(current, PIDTYPE_TGID);
 	ib_init_umem_implicit_odp(umem_odp);
 	return umem_odp;
 }
@@ -258,7 +258,7 @@ struct ib_umem_odp *ib_umem_odp_get(struct ib_device *device,
 		umem_odp->page_shift = HPAGE_SHIFT;
 #endif
 
-	umem_odp->tgid = get_task_pid(current->group_leader, PIDTYPE_PID);
+	umem_odp->tgid = get_task_pid(current, PIDTYPE_TGID);
 	ret = ib_init_umem_odp(umem_odp, ops);
 	if (ret)
 		goto err_put_pid;
-- 
2.52.0