From: Christoph Hellwig <hch@infradead.org>
To: Brian Foster <bfoster@redhat.com>
Cc: Christoph Hellwig <hch@infradead.org>,
linux-fsdevel@vger.kernel.org, linux-xfs@vger.kernel.org
Subject: Re: [PATCH v2 3/7] iomap: refactor iter and advance continuation logic
Date: Tue, 28 Jan 2025 21:50:49 -0800 [thread overview]
Message-ID: <Z5nBufkUS3XtoUxT@infradead.org> (raw)
In-Reply-To: <Z5jhuVsoM_L4SPRB@bfoster>
On Tue, Jan 28, 2025 at 08:55:05AM -0500, Brian Foster wrote:
> > > + if (!iter->iomap.length) {
> > > + trace_iomap_iter(iter, ops, _RET_IP_);
> > > + goto begin;
> > > + }
> >
> > This might be a chance to split trace_iomap_iter into two trace points
> > for the initial and following iterations? Or maybe we shouldn't bother.
> >
>
> Hmm.. not sure I see the value in a tracepoint just for the initial
> case, but maybe we should just move trace_iomap_iter() to the top of the
> function? We already have post-lookup tracepoints in iomap_iter_done()
> to show the mappings, and that would remove the duplication. Hm?
Sounds sensible.
next prev parent reply other threads:[~2025-01-29 5:50 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-01-22 13:34 [PATCH v2 0/7] iomap: incremental per-operation iter advance Brian Foster
2025-01-22 13:34 ` [PATCH v2 1/7] iomap: split out iomap check and reset logic from " Brian Foster
2025-01-22 13:34 ` [PATCH v2 2/7] iomap: factor out iomap length helper Brian Foster
2025-01-28 5:26 ` Christoph Hellwig
2025-01-28 13:53 ` Brian Foster
2025-01-22 13:34 ` [PATCH v2 3/7] iomap: refactor iter and advance continuation logic Brian Foster
2025-01-28 5:34 ` Christoph Hellwig
2025-01-28 13:55 ` Brian Foster
2025-01-29 5:50 ` Christoph Hellwig [this message]
2025-01-22 13:34 ` [PATCH v2 4/7] iomap: support incremental iomap_iter advances Brian Foster
2025-01-28 5:35 ` Christoph Hellwig
2025-01-22 13:34 ` [PATCH v2 5/7] iomap: advance the iter directly on buffered writes Brian Foster
2025-01-28 5:36 ` Christoph Hellwig
2025-01-22 13:34 ` [PATCH v2 6/7] iomap: advance the iter directly on unshare range Brian Foster
2025-01-28 5:39 ` Christoph Hellwig
2025-01-28 13:57 ` Brian Foster
2025-01-29 5:58 ` Christoph Hellwig
2025-01-28 17:59 ` Brian Foster
2025-01-29 5:56 ` Christoph Hellwig
2025-01-29 16:40 ` Brian Foster
2025-01-22 13:34 ` [PATCH v2 7/7] iomap: advance the iter directly on zero range Brian Foster
2025-01-28 5:40 ` Christoph Hellwig
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