From: Jan Dakinevich <jan.dakinevich@virtuozzo.com>
Date: Mon, 9 Jul 2018 16:51:08 +0300
Subject: ib_srpt: use kvmalloc to allocate ring pointers
Patch-mainline: v4.19-rc1
Git-commit: 781a4016be54ac36b22eac2e84c7fe4cafd3492a
References: bsc#1103992 FATE#326009
An array of pointers to SRPT contexts in ib_device is over 30KiB even
in default case, in which an amount of contexts is 4095. The patch
is intended to weed out large contigous allocation for non-DMA memory.
Signed-off-by: Jan Dakinevich <jan.dakinevich@virtuozzo.com>
Reviewed-by: Bart Van Assche <bart.vanassche@wdc.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
drivers/infiniband/ulp/srpt/ib_srpt.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
--- a/drivers/infiniband/ulp/srpt/ib_srpt.c
+++ b/drivers/infiniband/ulp/srpt/ib_srpt.c
@@ -719,7 +719,7 @@ static struct srpt_ioctx **srpt_alloc_io
WARN_ON(ioctx_size != sizeof(struct srpt_recv_ioctx)
&& ioctx_size != sizeof(struct srpt_send_ioctx));
- ring = kmalloc(ring_size * sizeof(ring[0]), GFP_KERNEL);
+ ring = kvmalloc_array(ring_size, sizeof(ring[0]), GFP_KERNEL);
if (!ring)
goto out;
for (i = 0; i < ring_size; ++i) {
@@ -733,7 +733,7 @@ static struct srpt_ioctx **srpt_alloc_io
err:
while (--i >= 0)
srpt_free_ioctx(sdev, ring[i], dma_size, dir);
- kfree(ring);
+ kvfree(ring);
ring = NULL;
out:
return ring;
@@ -758,7 +758,7 @@ static void srpt_free_ioctx_ring(struct
for (i = 0; i < ring_size; ++i)
srpt_free_ioctx(sdev, ioctx_ring[i], dma_size, dir);
- kfree(ioctx_ring);
+ kvfree(ioctx_ring);
}
/**