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-rw-r--r--mm/memory.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/mm/memory.c b/mm/memory.c
index 039fab699a1a..5afdb5b8d4e2 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -2377,12 +2377,12 @@ void unmap_mapping_range(struct address_space *mapping,
details.last_index = ULONG_MAX;
- i_mmap_lock_write(mapping);
+ i_mmap_lock_read(mapping);
if (unlikely(!RB_EMPTY_ROOT(&mapping->i_mmap)))
unmap_mapping_range_tree(&mapping->i_mmap, &details);
if (unlikely(!list_empty(&mapping->i_mmap_nonlinear)))
unmap_mapping_range_list(&mapping->i_mmap_nonlinear, &details);
- i_mmap_unlock_write(mapping);
+ i_mmap_unlock_read(mapping);
}
EXPORT_SYMBOL(unmap_mapping_range);