linux-kernel - Re: [f2fs-dev] [PATCH 2/2] f2fs: add F2FS_IOC_DECOMPRESS_FILE and F2FS_IOC_COMPRESS

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Message-ID: <X7/qr/kVxl3AO/PR@sol.localdomain>
Date:   Thu, 26 Nov 2020 09:49:35 -0800
From:   Eric Biggers <ebiggers@...nel.org>
To:     Daeho Jeong <daeho43@...il.com>
Cc:     Chao Yu <yuchao0@...wei.com>, Daeho Jeong <daehojeong@...gle.com>,
        kernel-team@...roid.com, linux-kernel@...r.kernel.org,
        linux-f2fs-devel@...ts.sourceforge.net
Subject: Re: [f2fs-dev] [PATCH 2/2] f2fs: add F2FS_IOC_DECOMPRESS_FILE and
 F2FS_IOC_COMPRESS_FILE

On Thu, Nov 26, 2020 at 02:04:41PM +0900, Daeho Jeong wrote:
> Eric,
> 
> do_page_cache_ra() is defined in mm/internal.h for internal use
> between in mm, so we cannot use this one right now.
> So, I think we could use page_cache_ra_unbounded(), because we already
> check i_size boundary on our own.
> What do you think?

What about page_cache_async_readahead() or page_cache_sync_readahead()?

- Eric