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-rw-r--r--drivers/dma-buf/dma-resv.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/dma-buf/dma-resv.c b/drivers/dma-buf/dma-resv.c
index 4264e64788c4..b45f8514dc82 100644
--- a/drivers/dma-buf/dma-resv.c
+++ b/drivers/dma-buf/dma-resv.c
@@ -34,6 +34,7 @@
#include <linux/dma-resv.h>
#include <linux/export.h>
+#include <linux/mm.h>
#include <linux/sched/mm.h>
/**
@@ -109,7 +110,7 @@ static int __init dma_resv_lockdep(void)
dma_resv_init(&obj);
- down_read(&mm->mmap_sem);
+ mmap_read_lock(mm);
ww_acquire_init(&ctx, &reservation_ww_class);
ret = dma_resv_lock(&obj, &ctx);
if (ret == -EDEADLK)
@@ -118,7 +119,7 @@ static int __init dma_resv_lockdep(void)
fs_reclaim_release(GFP_KERNEL);
ww_mutex_unlock(&obj.lock);
ww_acquire_fini(&ctx);
- up_read(&mm->mmap_sem);
+ mmap_read_unlock(mm);
mmput(mm);