linux-kernel - [PATCH 08/23] dax: Use xas_erase() in __dax_invalidate

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Date:   Wed, 22 Apr 2020 17:02:41 +0200
From:   Jan Kara <jack@...e.cz>
To:     Matthew Wilcox <willy@...radead.org>
Cc:     <linux-fsdevel@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>, Jan Kara <jack@...e.cz>
Subject: [PATCH 08/23] dax: Use xas_erase() in __dax_invalidate_entry()

When truncating DAX entry, we need to clear all the outstanding marks
for the entry. Use dax_erase() instead of dax_store().

Signed-off-by: Jan Kara <jack@...e.cz>
---
 fs/dax.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/dax.c b/fs/dax.c
index 11b16729b86f..f8358928549c 100644
--- a/fs/dax.c
+++ b/fs/dax.c
@@ -643,7 +643,7 @@ static int __dax_invalidate_entry(struct address_space *mapping,
 	     xas_get_mark(&xas, PAGECACHE_TAG_TOWRITE)))
 		goto out;
 	dax_disassociate_entry(entry, mapping, trunc);
-	xas_store(&xas, NULL);
+	xas_erase(&xas);
 	mapping->nrexceptional--;
 	ret = 1;
 out:
-- 
2.16.4