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Message-ID: <20230925120309.1731676-5-dhowells@redhat.com>
Date: Mon, 25 Sep 2023 13:03:01 +0100
From: David Howells <dhowells@...hat.com>
To: Jens Axboe <axboe@...nel.dk>
Cc: David Howells <dhowells@...hat.com>,
Al Viro <viro@...iv.linux.org.uk>,
Linus Torvalds <torvalds@...ux-foundation.org>,
Christoph Hellwig <hch@....de>,
Christian Brauner <christian@...uner.io>,
David Laight <David.Laight@...LAB.COM>,
Matthew Wilcox <willy@...radead.org>,
Jeff Layton <jlayton@...nel.org>,
linux-fsdevel@...r.kernel.org, linux-block@...r.kernel.org,
linux-mm@...ck.org, netdev@...r.kernel.org,
linux-kernel@...r.kernel.org,
Dennis Dalessandro <dennis.dalessandro@...nelisnetworks.com>,
Jason Gunthorpe <jgg@...pe.ca>,
Leon Romanovsky <leon@...nel.org>, linux-rdma@...r.kernel.org
Subject: [PATCH v7 04/12] infiniband: Use user_backed_iter() to see if iterator is UBUF/IOVEC
Use user_backed_iter() to see if iterator is UBUF/IOVEC rather than poking
inside the iterator.
Signed-off-by: David Howells <dhowells@...hat.com>
cc: Dennis Dalessandro <dennis.dalessandro@...nelisnetworks.com>
cc: Jason Gunthorpe <jgg@...pe.ca>
cc: Leon Romanovsky <leon@...nel.org>
cc: linux-rdma@...r.kernel.org
---
drivers/infiniband/hw/hfi1/file_ops.c | 2 +-
drivers/infiniband/hw/qib/qib_file_ops.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/infiniband/hw/hfi1/file_ops.c b/drivers/infiniband/hw/hfi1/file_ops.c
index a5ab22cedd41..788fc249234f 100644
--- a/drivers/infiniband/hw/hfi1/file_ops.c
+++ b/drivers/infiniband/hw/hfi1/file_ops.c
@@ -267,7 +267,7 @@ static ssize_t hfi1_write_iter(struct kiocb *kiocb, struct iov_iter *from)
if (!HFI1_CAP_IS_KSET(SDMA))
return -EINVAL;
- if (!from->user_backed)
+ if (!user_backed_iter(from))
return -EINVAL;
idx = srcu_read_lock(&fd->pq_srcu);
pq = srcu_dereference(fd->pq, &fd->pq_srcu);
diff --git a/drivers/infiniband/hw/qib/qib_file_ops.c b/drivers/infiniband/hw/qib/qib_file_ops.c
index 152952127f13..29e4c59aa23b 100644
--- a/drivers/infiniband/hw/qib/qib_file_ops.c
+++ b/drivers/infiniband/hw/qib/qib_file_ops.c
@@ -2244,7 +2244,7 @@ static ssize_t qib_write_iter(struct kiocb *iocb, struct iov_iter *from)
struct qib_ctxtdata *rcd = ctxt_fp(iocb->ki_filp);
struct qib_user_sdma_queue *pq = fp->pq;
- if (!from->user_backed || !from->nr_segs || !pq)
+ if (!user_backed_iter(from) || !from->nr_segs || !pq)
return -EINVAL;
return qib_user_sdma_writev(rcd, pq, iter_iov(from), from->nr_segs);
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