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ib_srpt: use kvmalloc to allocate ring pointers

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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>
This commit is contained in:
Jan Dakinevich 2018-07-09 16:51:08 +03:00 • committed by Jason Gunthorpe
parent 8942acea37
commit 781a4016be
1 changed files with 3 additions and 3 deletions
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6
drivers/infiniband/ulp/srpt/ib_srpt.c
View file

@ -719,7 +719,7 @@ static struct srpt_ioctx **srpt_alloc_ioctx_ring(struct srpt_device *sdev,
WARN_ON(ioctx_size != sizeof(struct srpt_recv_ioctx) WARN_ON(ioctx_size != sizeof(struct srpt_recv_ioctx)
&& ioctx_size != sizeof(struct srpt_send_ioctx)); && ioctx_size != sizeof(struct srpt_send_ioctx));
ring = kmalloc_array(ring_size, sizeof(ring[0]), GFP_KERNEL); ring = kvmalloc_array(ring_size, sizeof(ring[0]), GFP_KERNEL);
if (!ring) if (!ring)
goto out; goto out;
for (i = 0; i < ring_size; ++i) { for (i = 0; i < ring_size; ++i) {
@ -733,7 +733,7 @@ static struct srpt_ioctx **srpt_alloc_ioctx_ring(struct srpt_device *sdev,
err: err:
while (--i >= 0) while (--i >= 0)
srpt_free_ioctx(sdev, ring[i], dma_size, dir); srpt_free_ioctx(sdev, ring[i], dma_size, dir);
kfree(ring); kvfree(ring);
ring = NULL; ring = NULL;
out: out:
return ring; return ring;
@ -758,7 +758,7 @@ static void srpt_free_ioctx_ring(struct srpt_ioctx **ioctx_ring,
for (i = 0; i < ring_size; ++i) for (i = 0; i < ring_size; ++i)
srpt_free_ioctx(sdev, ioctx_ring[i], dma_size, dir); srpt_free_ioctx(sdev, ioctx_ring[i], dma_size, dir);
kfree(ioctx_ring); kvfree(ioctx_ring);
} }
/** /**