https://github.com/torvalds/linux
Revision dda9d57e2d4245c0d8e309ee7399bf2ebfca64ae authored by Eric Dumazet on 21 September 2018, 22:27:42 UTC, committed by David S. Miller on 24 September 2018, 04:55:24 UTC
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 lasts for unlimited amount of time, since one cpu is generally not able to drain all the queues under load. fm10k 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: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Tip revision: dda9d57e2d4245c0d8e309ee7399bf2ebfca64ae authored by Eric Dumazet on 21 September 2018, 22:27:42 UTC
fm10k: remove ndo_poll_controller
fm10k: remove ndo_poll_controller
Tip revision: dda9d57
| File | Mode | Size |
|---|---|---|
| Documentation | ||
| LICENSES | ||
| arch | ||
| block | ||
| certs | ||
| crypto | ||
| drivers | ||
| firmware | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | -rw-r--r-- | 12.8 KB |
| .cocciconfig | -rw-r--r-- | 59 bytes |
| .get_maintainer.ignore | -rw-r--r-- | 31 bytes |
| .gitattributes | -rw-r--r-- | 30 bytes |
| .gitignore | -rw-r--r-- | 1.5 KB |
| .mailmap | -rw-r--r-- | 9.7 KB |
| COPYING | -rw-r--r-- | 423 bytes |
| CREDITS | -rw-r--r-- | 96.4 KB |
| Kbuild | -rw-r--r-- | 2.2 KB |
| Kconfig | -rw-r--r-- | 563 bytes |
| MAINTAINERS | -rw-r--r-- | 459.0 KB |
| Makefile | -rw-r--r-- | 58.6 KB |
| README | -rw-r--r-- | 800 bytes |
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