Re: [PATCH 3/3] ext4: Use bdev_getblk() to avoid memory reclaim in readahead path

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To: akpm@xxxxxxxxxxxxxxxxxxxx
Subject: Re: [PATCH 3/3] ext4: Use bdev_getblk() to avoid memory reclaim in readahead path
From: Matthew Wilcox <willy@xxxxxxxxxxxxx>
Date: Fri, 11 Aug 2023 17:17:42 +0100
Cc: Hui Zhu <teawater@xxxxxxxxxxxx>, linux-fsdevel@xxxxxxxxxxxxxxx, linux-ext4@xxxxxxxxxxxxxxx
In-reply-to: <20230811161528.506437-4-willy@infradead.org>
References: <20230811161528.506437-1-willy@infradead.org> <20230811161528.506437-4-willy@infradead.org>

On Fri, Aug 11, 2023 at 05:15:28PM +0100, Matthew Wilcox (Oracle) wrote:
> +	struct buffer_head *bh = bdev_getblk(sb->s_bdev, block,
> +			sb->s_blocksize, GFP_NOWAIT);

Doh, I missed the __GFP_ACCOUNT from that.  Will wait a day or two
for other feedback.

References:
- [PATCH 0/3] Add and use bdev_getblk()
  - From: Matthew Wilcox (Oracle)
- [PATCH 3/3] ext4: Use bdev_getblk() to avoid memory reclaim in readahead path
  - From: Matthew Wilcox (Oracle)

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