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diff for duplicates of <20200131061247.yIaHhoydl%akpm@linux-foundation.org>

diff --git a/a/1.txt b/N1/1.txt
index 026c984..2460212 100644
--- a/a/1.txt
+++ b/N1/1.txt
@@ -59,4 +59,10 @@ Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
 @@ -274,8 +271,6 @@ struct ib_umem *ib_umem_get(struct ib_de
  		sg = ib_umem_add_sg_table(sg, page_list, ret,
  			dma_get_max_seg_size(device->dma_device),
- 			&umem->sg_nents);
\ No newline at end of file
+ 			&umem->sg_nents);
+-
+-		up_read(&mm->mmap_sem);
+ 	}
+ 
+ 	sg_mark_end(sg);
+_
\ No newline at end of file
diff --git a/a/content_digest b/N1/content_digest
index 15db292..3deea7f 100644
--- a/a/content_digest
+++ b/N1/content_digest
@@ -103,7 +103,13 @@
   "\@\@ -274,8 +271,6 \@\@ struct ib_umem *ib_umem_get(struct ib_de\n",
   " \t\tsg = ib_umem_add_sg_table(sg, page_list, ret,\n",
   " \t\t\tdma_get_max_seg_size(device->dma_device),\n",
-  " \t\t\t&umem->sg_nents);"
+  " \t\t\t&umem->sg_nents);\n",
+  "-\n",
+  "-\t\tup_read(&mm->mmap_sem);\n",
+  " \t}\n",
+  " \n",
+  " \tsg_mark_end(sg);\n",
+  "_"
 ]
 
-8fd7ce70fac05059384a146f8aa212ada198230600e306d92a444d9985d1354e
+af31ea5f6fd7a609c771fc4d591a2059f5cc5496d32a1da8af6a08b1cce30b69
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