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From: Christoph Hellwig <hch@lst.de>
To: Carlos Maiolino <cem@kernel.org>
Cc: Christoph Hellwig <hch@lst.de>, linux-xfs@vger.kernel.org
Subject: Re: [PATCH 4/4] xfs: simplify the failure path in xfs_buf_alloc_vmalloc
Date: Wed, 24 Jun 2026 09:41:35 +0200	[thread overview]
Message-ID: <20260624074135.GA12896@lst.de> (raw)
In-Reply-To: <ajkrJHFg4lYeWskS@nidhogg.toxiclabs.cc>

On Mon, Jun 22, 2026 at 02:34:10PM +0200, Carlos Maiolino wrote:
> >  	for (;;) {
> >  		bp->b_addr = __vmalloc(size, gfp_mask);
> >  		if (bp->b_addr)
> >  			break;
> > -		if (flags & XBF_READ_AHEAD)
> 
> My only concern is that looking at it now, isn't obvious why GRP_NORETRY
> has been set in the first place, perhaps worth adding a comment above
> it? Like:
> 		/* Set during readahead */

Maybe.  But in the end we don't really care why it was set, as it clearly
tells us not to retry, right?


  reply	other threads:[~2026-06-24  7:41 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-06-17  5:58 fix GFP_ flag use in the buffer cache Christoph Hellwig
2026-06-17  5:58 ` [PATCH 1/4] xfs: split up xfs_buf_alloc_backing_mem Christoph Hellwig
2026-06-22 12:17   ` Carlos Maiolino
2026-06-17  5:58 ` [PATCH 2/4] xfs: lift setting __GFP_NOFAIL from xfs_buf_alloc_kmem to the caller Christoph Hellwig
2026-06-22 12:22   ` Carlos Maiolino
2026-06-17  5:58 ` [PATCH 3/4] xfs: fix incorrect use of gfp flags in xfs_buf_alloc_backing_mem Christoph Hellwig
2026-06-22 12:31   ` Carlos Maiolino
2026-06-17  5:58 ` [PATCH 4/4] xfs: simplify the failure path in xfs_buf_alloc_vmalloc Christoph Hellwig
2026-06-22 12:34   ` Carlos Maiolino
2026-06-24  7:41     ` Christoph Hellwig [this message]
2026-06-24  8:25       ` Carlos Maiolino

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