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btrfs: Convert page cache to XArray

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Signed-off-by: Matthew Wilcox <willy@infradead.org>
Acked-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Matthew Wilcox
2017-12-04 10:37:22 -05:00
parent 7f4446eefe
commit 0a943c65e7
2 changed files with 4 additions and 8 deletions
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4
fs/btrfs/compression.c
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@@ -437,9 +437,7 @@ static noinline int add_ra_bio_pages(struct inode *inode,
if (pg_index > end_index)
break;
rcu_read_lock();
page = radix_tree_lookup(&mapping->i_pages, pg_index);
rcu_read_unlock();
page = xa_load(&mapping->i_pages, pg_index);
if (page && !xa_is_value(page)) {
misses++;
if (misses > 4)