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Subject[PATCH v9 37/61] mm: Convert __do_page_cache_readahead to XArray
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From: Matthew Wilcox <mawilcox@microsoft.com>

This one is trivial.

Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
---
mm/readahead.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/mm/readahead.c b/mm/readahead.c
index 3ff9763b0461..5f528d649d5e 100644
--- a/mm/readahead.c
+++ b/mm/readahead.c
@@ -174,9 +174,7 @@ int __do_page_cache_readahead(struct address_space *mapping, struct file *filp,
if (page_offset > end_index)
break;

- rcu_read_lock();
- page = radix_tree_lookup(&mapping->i_pages, page_offset);
- rcu_read_unlock();
+ page = xa_load(&mapping->i_pages, page_offset);
if (page && !xa_is_value(page))
continue;

--
2.16.1
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