This use is converted manually ahead of the next patch in the series,
as it requires including a new header which the automated conversion
would miss.

Signed-off-by: Michel Lespinasse <wal...@google.com>
Reviewed-by: Daniel Jordan <daniel.m.jor...@oracle.com>
Reviewed-by: Laurent Dufour <lduf...@linux.ibm.com>
Reviewed-by: Vlastimil Babka <vba...@suse.cz>
---
 drivers/dma-buf/dma-resv.c | 5 +++--
 1 file 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);
 
-- 
2.26.2.761.g0e0b3e54be-goog

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