[PATCH 4/3] buffer: Use bdev_getblk() in __breadahead()

[Matthew Wilcox <willy@infradead.org>]

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);