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Diffstat (limited to 'fs/nilfs2/btnode.c')
-rw-r--r--fs/nilfs2/btnode.c26
1 files changed, 9 insertions, 17 deletions
diff --git a/fs/nilfs2/btnode.c b/fs/nilfs2/btnode.c
index ebb24a314f43..de99db518571 100644
--- a/fs/nilfs2/btnode.c
+++ b/fs/nilfs2/btnode.c
@@ -168,24 +168,18 @@ int nilfs_btnode_prepare_change_key(struct address_space *btnc,
ctxt->newbh = NULL;
if (inode->i_blkbits == PAGE_SHIFT) {
- lock_page(obh->b_page);
- /*
- * We cannot call radix_tree_preload for the kernels older
- * than 2.6.23, because it is not exported for modules.
- */
+ struct page *opage = obh->b_page;
+ lock_page(opage);
retry:
- err = radix_tree_preload(GFP_NOFS & ~__GFP_HIGHMEM);
- if (err)
- goto failed_unlock;
/* BUG_ON(oldkey != obh->b_page->index); */
- if (unlikely(oldkey != obh->b_page->index))
- NILFS_PAGE_BUG(obh->b_page,
+ if (unlikely(oldkey != opage->index))
+ NILFS_PAGE_BUG(opage,
"invalid oldkey %lld (newkey=%lld)",
(unsigned long long)oldkey,
(unsigned long long)newkey);
xa_lock_irq(&btnc->i_pages);
- err = radix_tree_insert(&btnc->i_pages, newkey, obh->b_page);
+ err = __xa_insert(&btnc->i_pages, newkey, opage, GFP_NOFS);
xa_unlock_irq(&btnc->i_pages);
/*
* Note: page->index will not change to newkey until
@@ -193,7 +187,6 @@ retry:
* To protect the page in intermediate state, the page lock
* is held.
*/
- radix_tree_preload_end();
if (!err)
return 0;
else if (err != -EEXIST)
@@ -203,7 +196,7 @@ retry:
if (!err)
goto retry;
/* fallback to copy mode */
- unlock_page(obh->b_page);
+ unlock_page(opage);
}
nbh = nilfs_btnode_create_block(btnc, newkey);
@@ -243,9 +236,8 @@ void nilfs_btnode_commit_change_key(struct address_space *btnc,
mark_buffer_dirty(obh);
xa_lock_irq(&btnc->i_pages);
- radix_tree_delete(&btnc->i_pages, oldkey);
- radix_tree_tag_set(&btnc->i_pages, newkey,
- PAGECACHE_TAG_DIRTY);
+ __xa_erase(&btnc->i_pages, oldkey);
+ __xa_set_mark(&btnc->i_pages, newkey, PAGECACHE_TAG_DIRTY);
xa_unlock_irq(&btnc->i_pages);
opage->index = obh->b_blocknr = newkey;
@@ -275,7 +267,7 @@ void nilfs_btnode_abort_change_key(struct address_space *btnc,
if (nbh == NULL) { /* blocksize == pagesize */
xa_lock_irq(&btnc->i_pages);
- radix_tree_delete(&btnc->i_pages, newkey);
+ __xa_erase(&btnc->i_pages, newkey);
xa_unlock_irq(&btnc->i_pages);
unlock_page(ctxt->bh->b_page);
} else