linux-kernel - [PATCH 10/23] dax: Convert xas_store() to xas_store

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Date:   Wed, 22 Apr 2020 17:02:43 +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 10/23] dax: Convert xas_store() to xas_store_noinit()

All remaining users of xas_store() store non-NULL entries so xas_store()
and xas_store_noinit() are equivalent. Replace xas_store() with
xas_store_noinit().

Signed-off-by: Jan Kara <jack@...e.cz>
---
 fs/dax.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/fs/dax.c b/fs/dax.c
index 03c6ca693f3c..1c905830ee10 100644
--- a/fs/dax.c
+++ b/fs/dax.c
@@ -283,7 +283,7 @@ static void dax_unlock_entry(struct xa_state *xas, void *entry)
 	BUG_ON(dax_is_locked(entry));
 	xas_reset(xas);
 	xas_lock_irq(xas);
-	old = xas_store(xas, entry);
+	old = xas_store_noinit(xas, entry);
 	xas_unlock_irq(xas);
 	BUG_ON(!dax_is_locked(old));
 	dax_wake_entry(xas, entry, false);
@@ -295,7 +295,7 @@ static void dax_unlock_entry(struct xa_state *xas, void *entry)
 static void *dax_lock_entry(struct xa_state *xas, void *entry)
 {
 	unsigned long v = xa_to_value(entry);
-	return xas_store(xas, xa_mk_value(v | DAX_LOCKED));
+	return xas_store_noinit(xas, xa_mk_value(v | DAX_LOCKED));
 }
 
 static unsigned long dax_entry_size(void *entry)
@@ -923,7 +923,7 @@ static int dax_writeback_one(struct xa_state *xas, struct dax_device *dax_dev,
 	 */
 	xas_reset(xas);
 	xas_lock_irq(xas);
-	xas_store(xas, entry);
+	xas_store_noinit(xas, entry);
 	xas_clear_mark(xas, PAGECACHE_TAG_DIRTY);
 	dax_wake_entry(xas, entry, false);
 
-- 
2.16.4