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From: Maxime Ripard <mripard@kernel.org>
To: "Sumit Semwal" <sumit.semwal@linaro.org>,
	"Benjamin Gaignard" <benjamin.gaignard@collabora.com>,
	"Brian Starkey" <Brian.Starkey@arm.com>,
	"John Stultz" <jstultz@google.com>,
	"T.J. Mercier" <tjmercier@google.com>,
	"Christian König" <christian.koenig@amd.com>,
	"Marek Szyprowski" <m.szyprowski@samsung.com>,
	"Robin Murphy" <robin.murphy@arm.com>,
	"Andrew Morton" <akpm@linux-foundation.org>,
	"David Hildenbrand" <david@kernel.org>,
	"Lorenzo Stoakes" <lorenzo.stoakes@oracle.com>,
	"Liam R. Howlett" <Liam.Howlett@oracle.com>,
	"Vlastimil Babka" <vbabka@suse.cz>,
	"Mike Rapoport" <rppt@kernel.org>,
	"Suren Baghdasaryan" <surenb@google.com>,
	"Michal Hocko" <mhocko@suse.com>
Cc: linux-media@vger.kernel.org, dri-devel@lists.freedesktop.org,
	 linaro-mm-sig@lists.linaro.org, linux-kernel@vger.kernel.org,
	 iommu@lists.linux.dev, linux-mm@kvack.org,
	 Maxime Ripard <mripard@kernel.org>
Subject: [PATCH 5/7] dma-buf: heaps: Export mem_accounting parameter
Date: Wed, 25 Feb 2026 17:41:53 +0100	[thread overview]
Message-ID: <20260225-dma-buf-heaps-as-modules-v1-5-2109225a090d@kernel.org> (raw)
In-Reply-To: <20260225-dma-buf-heaps-as-modules-v1-0-2109225a090d@kernel.org>

The mem_accounting kernel parameter is used by heaps to know if they
should account allocations in their respective cgroup controllers.

Since we're going to allow heaps to compile as modules, we need to
export that variable.

Signed-off-by: Maxime Ripard <mripard@kernel.org>
---
 drivers/dma-buf/dma-heap.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/dma-buf/dma-heap.c b/drivers/dma-buf/dma-heap.c
index ac5f8685a649496c0e1c6decbf263b63fa472d04..a76bf3f8b071a3d5bf39a8513f31e9e8aa16e02f 100644
--- a/drivers/dma-buf/dma-heap.c
+++ b/drivers/dma-buf/dma-heap.c
@@ -51,10 +51,11 @@ static DEFINE_XARRAY_ALLOC(dma_heap_minors);
 
 bool __read_mostly mem_accounting;
 module_param(mem_accounting, bool, 0444);
 MODULE_PARM_DESC(mem_accounting,
 		 "Enable cgroup-based memory accounting for dma-buf heap allocations (default=false).");
+EXPORT_SYMBOL_NS_GPL(mem_accounting, "DMA_BUF_HEAP");
 
 static int dma_heap_buffer_alloc(struct dma_heap *heap, size_t len,
 				 u32 fd_flags,
 				 u64 heap_flags)
 {

-- 
2.53.0



  parent reply	other threads:[~2026-02-25 16:42 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-02-25 16:41 [PATCH 0/7] dma-buf: heaps: Turn heaps into modules Maxime Ripard
2026-02-25 16:41 ` [PATCH 1/7] dma: contiguous: Turn heap registration logic around Maxime Ripard
2026-02-25 19:32   ` T.J. Mercier
2026-02-25 16:41 ` [PATCH 2/7] mm: cma: Export cma_alloc and cma_release Maxime Ripard
2026-02-25 19:34   ` T.J. Mercier
2026-02-25 16:41 ` [PATCH 3/7] mm: cma: Export cma_get_name Maxime Ripard
2026-02-25 19:34   ` T.J. Mercier
2026-02-25 16:41 ` [PATCH 4/7] mm: cma: Export dma_contiguous_default_area Maxime Ripard
2026-02-25 19:52   ` T.J. Mercier
2026-02-25 16:41 ` Maxime Ripard [this message]
2026-02-25 19:53   ` [PATCH 5/7] dma-buf: heaps: Export mem_accounting parameter T.J. Mercier
2026-02-25 16:41 ` [PATCH 6/7] dma-buf: heaps: cma: Turn the heap into a module Maxime Ripard
2026-02-25 19:54   ` T.J. Mercier
2026-02-25 16:41 ` [PATCH 7/7] dma-buf: heaps: system: " Maxime Ripard
2026-02-25 19:55   ` T.J. Mercier
2026-02-25 18:51 ` [PATCH 0/7] dma-buf: heaps: Turn heaps into modules John Stultz

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