summaryrefslogtreecommitdiff
path: root/crypto/blkcipher.c
diff options
context:
space:
mode:
authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-03-19 13:11:56 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-03-19 13:11:56 +0100
commitc0ad257a19f48c56f2ee2e623a78251aa8664279 (patch)
tree0d31ccc8a3ab9668003900be15aa00b92300d32c /crypto/blkcipher.c
parent9ad64a53fd0f2dbb54c80280c1bc573e71666e27 (diff)
downloadkernel-linux-4.20.y.tar.gz
Linux 4.20.17linux-4.20.y
Diffstat (limited to 'crypto/blkcipher.c')
0 files changed, 0 insertions, 0 deletions
'https://universe.0xinfinity.dev/distro/kernel/commit/?id=a4f570be654de779eaf626a79c4e0aa5a790505f'/> urn:sha1:a4f570be654de779eaf626a79c4e0aa5a790505f As diagnosed by Song Liu, ndo_poll_controller() can be very dangerous on loaded hosts, since the cpu calling ndo_poll_controller() might steal all NAPI contexts (for all RX/TX queues of the NIC). This capture can last for unlimited amount of time, since one cpu is generally not able to drain all the queues under load. sfc-falcon uses NAPI for TX completions, so we better let core networking stack call the napi->poll() to avoid the capture. Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Solarflare linux maintainers <linux-net-drivers@solarflare.com> Cc: Edward Cree <ecree@solarflare.com> Cc: Bert Kenward <bkenward@solarflare.com> Acked-By: Bert Kenward <bkenward@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net> x86/pci-dma: remove the experimental forcesac boot option 2018-05-28T10:48:16Z Christoph Hellwig hch@lst.de 2018-04-27T07:13:24Z urn:sha1:06e9552f5f12564dc1c3483f0934d96cc4f72f18 Limiting the dma mask to avoid PCI (pre-PCIe) DAC cycles while paying the huge overhead of an IOMMU is rather pointless, and this seriously gets in the way of dma mapping work. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Thomas Gleixner <tglx@linutronix.de>