linux-kernel - Re: [PATCH] f2fs: zone: wait for inflight dio completion, excluding pinned files

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Message-ID: <fed85e52-2965-41d0-9e73-8f2e15dbef06@kernel.org>
Date: Tue, 22 Jul 2025 11:56:58 +0800
From: Chao Yu <chao@...nel.org>
To: "yohan.joung" <yohan.joung@...com>, jaegeuk@...nel.org
Cc: chao@...nel.org, linux-kernel@...r.kernel.org,
 linux-f2fs-devel@...ts.sourceforge.net, pilhyun.kim@...com
Subject: Re: [PATCH] f2fs: zone: wait for inflight dio completion, excluding
 pinned files

On 7/21/25 13:41, yohan.joung wrote:
> pinfile is excluded as it operates with direct I/O

pinfile can use buffer IO as well?

Thanks,

> 
> Signed-off-by: yohan.joung <yohan.joung@...com>
> ---
>  fs/f2fs/file.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
> index 4039ccb5022c..cac8c9650a7a 100644
> --- a/fs/f2fs/file.c
> +++ b/fs/f2fs/file.c
> @@ -4844,7 +4844,8 @@ static ssize_t f2fs_file_read_iter(struct kiocb *iocb, struct iov_iter *to)
>  
>  	/* In LFS mode, if there is inflight dio, wait for its completion */
>  	if (f2fs_lfs_mode(F2FS_I_SB(inode)) &&
> -	    get_pages(F2FS_I_SB(inode), F2FS_DIO_WRITE))
> +	    get_pages(F2FS_I_SB(inode), F2FS_DIO_WRITE) &&
> +		!f2fs_is_pinned_file(inode))
>  		inode_dio_wait(inode);
>  
>  	if (f2fs_should_use_dio(inode, iocb, to)) {