From: akpm@osdl.org
To: torvalds@osdl.org
Cc: linux-kernel@vger.kernel.org, akpm@osdl.org, mst@mellanox.co.il,
roland@topspin.com
Subject: [patch 167/198] IB/mthca: allow unaligned memory regions
Date: Tue, 12 Apr 2005 03:33:09 -0700 [thread overview]
Message-ID: <200504121033.j3CAXGVT005834@shell0.pdx.osdl.net> (raw)
From: Michael S. Tsirkin <mst@mellanox.co.il>
The first buffer of a memory region is not required to be page-aligned, so
don't return an error if it's not.
Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: Roland Dreier <roland@topspin.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
---
25-akpm/drivers/infiniband/hw/mthca/mthca_provider.c | 2 +-
1 files changed, 1 insertion(+), 1 deletion(-)
diff -puN drivers/infiniband/hw/mthca/mthca_provider.c~ib-mthca-allow-unaligned-memory-regions drivers/infiniband/hw/mthca/mthca_provider.c
--- 25/drivers/infiniband/hw/mthca/mthca_provider.c~ib-mthca-allow-unaligned-memory-regions 2005-04-12 03:21:43.262559992 -0700
+++ 25-akpm/drivers/infiniband/hw/mthca/mthca_provider.c 2005-04-12 03:21:43.265559536 -0700
@@ -494,7 +494,7 @@ static struct ib_mr *mthca_reg_phys_mr(s
mask = 0;
total_size = 0;
for (i = 0; i < num_phys_buf; ++i) {
- if (buffer_list[i].addr & ~PAGE_MASK)
+ if (i != 0 && buffer_list[i].addr & ~PAGE_MASK)
return ERR_PTR(-EINVAL);
if (i != 0 && i != num_phys_buf - 1 &&
(buffer_list[i].size & ~PAGE_MASK))
_
reply other threads:[~2005-04-12 16:35 UTC|newest]
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