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Date:   Fri, 11 Aug 2023 20:23:13 +0100
From:   Matthew Wilcox <willy@infradead.org>
To:     akpm@linux-foundation.org
Cc:     Hui Zhu <teawater@antgroup.com>, linux-fsdevel@vger.kernel.org,
        linux-ext4@vger.kernel.org
Subject: [PATCH 4/3] buffer: Use bdev_getblk() in __breadahead()
Message-ID: <ZNaKoWbYyOveesVc@casper.infradead.org>
References: <20230811161528.506437-1-willy@infradead.org>
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It occurs to me that this would also be useful and I'll include it in
the next version:

diff --git a/fs/buffer.c b/fs/buffer.c
index 122b7d16befb..b551a5b1196b 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -1470,7 +1470,9 @@ EXPORT_SYMBOL(__getblk_gfp);
  */
 void __breadahead(struct block_device *bdev, sector_t block, unsigned size)
 {
-       struct buffer_head *bh = __getblk(bdev, block, size);
+       struct buffer_head *bh = bdev_getblk(bdev, block, size,
+                       GFP_NOWAIT | __GFP_MOVABLE | __GFP_ACCOUNT);
+
        if (likely(bh)) {
                bh_readahead(bh, REQ_RAHEAD);
                brelse(bh);