From 0a943c65e7d7207dce2a63e9d14a925c0d9a7d96 Mon Sep 17 00:00:00 2001 From: Matthew Wilcox Date: Mon, 4 Dec 2017 10:37:22 -0500 Subject: [PATCH] btrfs: Convert page cache to XArray Signed-off-by: Matthew Wilcox Acked-by: David Sterba --- fs/btrfs/compression.c | 4 +--- fs/btrfs/extent_io.c | 8 +++----- 2 files changed, 4 insertions(+), 8 deletions(-) diff --git a/fs/btrfs/compression.c b/fs/btrfs/compression.c index fd25e12..a65d144 100644 --- a/fs/btrfs/compression.c +++ b/fs/btrfs/compression.c @@ -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) diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index fc7ca7d9..d4ad015 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -5153,11 +5153,9 @@ void clear_extent_buffer_dirty(struct extent_buffer *eb) clear_page_dirty_for_io(page); xa_lock_irq(&page->mapping->i_pages); - if (!PageDirty(page)) { - radix_tree_tag_clear(&page->mapping->i_pages, - page_index(page), - PAGECACHE_TAG_DIRTY); - } + if (!PageDirty(page)) + __xa_clear_mark(&page->mapping->i_pages, + page_index(page), PAGECACHE_TAG_DIRTY); xa_unlock_irq(&page->mapping->i_pages); ClearPageError(page); unlock_page(page); -- 2.7.4