From: "Pankaj Raghav (Samsung)" <kernel@pankajraghav.com>
To: Jan Kara <jack@suse.cz>
Cc: Andrew Morton <akpm@linux-foundation.org>,
linux-fsdevel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [PATCH] readahead: Add trace points
Date: Tue, 9 Sep 2025 14:41:33 +0200 [thread overview]
Message-ID: <iruyokxvyziqzq3qrcorpx6mq2pshs6beyvgsokqlcz7loane2@y4bdrxzzitwa> (raw)
In-Reply-To: <20250908145533.31528-2-jack@suse.cz>
On Mon, Sep 08, 2025 at 04:55:34PM +0200, Jan Kara wrote:
>
> /*
> @@ -314,6 +317,7 @@ static void do_page_cache_ra(struct readahead_control *ractl,
> loff_t isize = i_size_read(inode);
> pgoff_t end_index; /* The last page we want to read */
>
> + trace_do_page_cache_ra(inode, index, nr_to_read, lookahead_size);
Any reason why put a probe here instead of page_cache_ra_unbounded as
that is where the actual readahead happens?
--
Pankaj Raghav
next prev parent reply other threads:[~2025-09-09 12:41 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-08 14:55 Jan Kara
2025-09-09 12:41 ` Pankaj Raghav (Samsung) [this message]
2025-09-09 14:47 ` Jan Kara
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