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authorMatthew Wilcox <willy@infradead.org>2017-12-04 12:30:18 +0300
committerMatthew Wilcox <willy@infradead.org>2018-10-21 17:46:37 +0300
commit560d454bae08b5d5a132c5520177dede066334b7 (patch)
treed1ba4efc4b2120964e2cf364aa3053f35fb5a414 /mm/readahead.c
parent4e17ec250fce0eba9b70a91c9622da2748a3ec50 (diff)
downloadlinux-560d454bae08b5d5a132c5520177dede066334b7.tar.xz
mm: Convert __do_page_cache_readahead to XArray
This one is trivial. Signed-off-by: Matthew Wilcox <willy@infradead.org>
Diffstat (limited to 'mm/readahead.c')
-rw-r--r--mm/readahead.c4
1 files changed, 1 insertions, 3 deletions
diff --git a/mm/readahead.c b/mm/readahead.c
index fc4dd364b37a..f3d6f9656a3c 100644
--- a/mm/readahead.c
+++ b/mm/readahead.c
@@ -176,9 +176,7 @@ unsigned int __do_page_cache_readahead(struct address_space *mapping,
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)) {
/*
* Page already present? Kick off the current batch of