mirror of
https://github.com/torvalds/linux.git
synced 2024-11-22 20:22:09 +00:00
7bced39751
Per commit "77873803363c net_dma: mark broken" net_dma is no longer used
and there is no plan to fix it.
This is the mechanical removal of bits in CONFIG_NET_DMA ifdef guards.
Reverting the remainder of the net_dma induced changes is deferred to
subsequent patches.
Marked for stable due to Roman's report of a memory leak in
dma_pin_iovec_pages():
https://lkml.org/lkml/2014/9/3/177
Cc: Dave Jiang <dave.jiang@intel.com>
Cc: Vinod Koul <vinod.koul@intel.com>
Cc: David Whipple <whipple@securedatainnovations.ch>
Cc: Alexander Duyck <alexander.h.duyck@intel.com>
Cc: <stable@vger.kernel.org>
Reported-by: Roman Gushchin <klamm@yandex-team.ru>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
9 lines
339 B
Plaintext
9 lines
339 B
Plaintext
What: tcp_dma_copybreak sysctl
|
|
Date: Removed in kernel v3.13
|
|
Contact: Dan Williams <dan.j.williams@intel.com>
|
|
Description:
|
|
Formerly the lower limit, in bytes, of the size of socket reads
|
|
that will be offloaded to a DMA copy engine. Removed due to
|
|
coherency issues of the cpu potentially touching the buffers
|
|
while dma is in flight.
|