From: Rik van Riel <riel@surriel.com>
To: Jason Gunthorpe <jgg@ziepe.ca>, "Liam R. Howlett" <liam@infradead.org>
Cc: linux-kernel@vger.kernel.org, kernel-team@meta.com,
robin.murphy@arm.com, joro@8bytes.org, will@kernel.org,
iommu@lists.linux.dev, kyle@mcmartin.ca,
Rik van Riel <riel@meta.com>,
maple-tree@lists.infradead.org
Subject: Re: [PATCH v3 3/3] iova: defer maple tree erase on GFP_ATOMIC failure
Date: Thu, 18 Jun 2026 23:51:02 -0400 [thread overview]
Message-ID: <ea36fdc51f710d01f0e9bc389334e0b8be96eaea.camel@surriel.com> (raw)
In-Reply-To: <20260618152451.GE231643@ziepe.ca>
On Thu, 2026-06-18 at 12:24 -0300, Jason Gunthorpe wrote:
>
> - I like your idea for Rik to try to store NULL to erase, on failure
> store ZERO_ENTRY, and then set a note on the next alloc to clean
> the
> ZERO_ENTRYs?
>
Is there any efficient way to find those XA_ZERO_ENTRYs?
Without a good way to find them, we might still need the
llist to clean them up, though I agree that cleaning them
up from the allocator side looks cleaner than doing it
from an external worker, and I did make that change for v4.
--
All Rights Reversed.
next prev parent reply other threads:[~2026-06-19 3:51 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-03 3:35 [PATCH v3 0/3] iova: use maple tree for O(log n) allocation Rik van Riel
2026-06-03 3:35 ` [PATCH v3 1/3] iova: convert from rbtree to maple tree Rik van Riel
2026-06-17 19:55 ` Liam R. Howlett
2026-06-19 3:47 ` Rik van Riel
2026-06-03 3:35 ` [PATCH v3 2/3] iova: add KUnit test suite Rik van Riel
2026-06-03 3:35 ` [PATCH v3 3/3] iova: defer maple tree erase on GFP_ATOMIC failure Rik van Riel
2026-06-09 13:04 ` Jason Gunthorpe
2026-06-11 2:22 ` Rik van Riel
2026-06-12 16:02 ` Rik van Riel
2026-06-12 16:48 ` Jason Gunthorpe
2026-06-12 17:23 ` Rik van Riel
2026-06-12 18:03 ` Jason Gunthorpe
2026-06-12 18:44 ` Liam R. Howlett
2026-06-15 11:56 ` Jason Gunthorpe
2026-06-17 17:45 ` Liam R. Howlett
2026-06-17 18:04 ` Jason Gunthorpe
2026-06-18 14:50 ` Liam R. Howlett
2026-06-18 15:24 ` Jason Gunthorpe
2026-06-18 17:27 ` Liam R. Howlett
2026-06-18 17:30 ` Rik van Riel
2026-06-18 19:13 ` Liam R. Howlett
2026-06-19 12:08 ` Jason Gunthorpe
2026-06-30 18:39 ` Liam R. Howlett
2026-06-19 3:51 ` Rik van Riel [this message]
2026-06-19 4:54 ` Liam R. Howlett
2026-06-19 12:13 ` Jason Gunthorpe
2026-06-19 18:54 ` Rik van Riel
2026-06-21 0:08 ` Ashok Raj
2026-06-21 1:53 ` Rik van Riel
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