From: "Chuck Lever" <cel@kernel.org>
To: "Christoph Hellwig" <hch@lst.de>
Cc: "Jason Gunthorpe" <jgg@nvidia.com>,
"Leon Romanovsky" <leon@kernel.org>,
NeilBrown <neilb@ownmail.net>, "Jeff Layton" <jlayton@kernel.org>,
"Olga Kornievskaia" <okorniev@redhat.com>,
"Dai Ngo" <dai.ngo@oracle.com>, "Tom Talpey" <tom@talpey.com>,
linux-rdma@vger.kernel.org, linux-nfs@vger.kernel.org,
"Chuck Lever" <chuck.lever@oracle.com>
Subject: Re: [PATCH v3 3/5] RDMA/core: add MR support for bvec-based RDMA operations
Date: Fri, 23 Jan 2026 11:47:46 -0500 [thread overview]
Message-ID: <9a8a0671-29a2-4220-8d38-361a6718b7ea@app.fastmail.com> (raw)
In-Reply-To: <20260123063622.GA26025@lst.de>
On Fri, Jan 23, 2026, at 1:36 AM, Christoph Hellwig wrote:
>> for (i = 0; i < ctx->nr_ops; i++) {
>> - struct rdma_rw_reg_ctx *reg = &ctx->reg[i];
>> + struct rdma_rw_reg_ctx *reg = &ctx->reg.ctx[i];
>
> Jumping ahead here - why can't the sgtable be stored in ->reg
> without renaming? Is there case where need it, but the rest of
> reg? In
I think the answer is yes, with bvec, both fields are needed at
the same time. My preference is to go back to the early form of
the structure without a union, since there are API consumers who
access the reg field directly. Let me know your thoughts.
--
Chuck Lever
next prev parent reply other threads:[~2026-01-23 16:48 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-22 22:03 [PATCH v3 0/5] Add a bio_vec based API to core/rw.c Chuck Lever
2026-01-22 22:03 ` [PATCH v3 1/5] RDMA/core: add bio_vec based RDMA read/write API Chuck Lever
2026-01-23 6:26 ` Christoph Hellwig
2026-01-22 22:03 ` [PATCH v3 2/5] RDMA/core: use IOVA-based DMA mapping for bvec RDMA operations Chuck Lever
2026-01-23 6:28 ` Christoph Hellwig
2026-01-23 15:04 ` Chuck Lever
2026-01-26 6:14 ` Christoph Hellwig
2026-01-22 22:03 ` [PATCH v3 3/5] RDMA/core: add MR support for bvec-based " Chuck Lever
2026-01-23 6:36 ` Christoph Hellwig
2026-01-23 15:06 ` Chuck Lever
2026-01-26 6:17 ` Christoph Hellwig
2026-01-26 16:48 ` Chuck Lever
2026-01-23 16:47 ` Chuck Lever [this message]
2026-01-26 6:16 ` Christoph Hellwig
2026-01-22 22:04 ` [PATCH v3 4/5] RDMA/core: add rdma_rw_max_sge() helper for SQ sizing Chuck Lever
2026-01-23 6:36 ` Christoph Hellwig
2026-01-22 22:04 ` [PATCH v3 5/5] svcrdma: use bvec-based RDMA read/write API Chuck Lever
2026-01-23 6:04 ` [PATCH v3 0/5] Add a bio_vec based API to core/rw.c Zhu Yanjun
2026-01-23 14:13 ` Chuck Lever
2026-01-24 18:19 ` Zhu Yanjun
2026-01-26 17:13 ` Jason Gunthorpe
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