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authorTobias Klauser <tklauser@distanz.ch>2015-11-24 10:36:42 +0100
committerTobias Klauser <tklauser@distanz.ch>2015-11-24 10:36:42 +0100
commitb7ee1387d5375dee1b54fc465c60f0d487860a45 (patch)
tree7092c3c073f39238f976126c1f41aecd414188c4 /bpfc
parent6995883a9b6f5260977d448a6ba044013d68b935 (diff)
trafgen: Fix error message if no packet configuration is given
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Diffstat (limited to 'bpfc')
0 files changed, 0 insertions, 0 deletions
cgit.cgi/linux/net-next.git/diff/sound/soc/codecs/sti-sas.c?h=nds-private-remove&id=433e19cf33d34bb6751c874a9c00980552fe508c&id2=191e885a2e130e639bb0c8ee350d7047294f2ce6'>diff)
Drivers: hv: vmbus: finally fix hv_need_to_signal_on_read()
Commit a389fcfd2cb5 ("Drivers: hv: vmbus: Fix signaling logic in hv_need_to_signal_on_read()") added the proper mb(), but removed the test "prev_write_sz < pending_sz" when making the signal decision. As a result, the guest can signal the host unnecessarily, and then the host can throttle the guest because the host thinks the guest is buggy or malicious; finally the user running stress test can perceive intermittent freeze of the guest. This patch brings back the test, and properly handles the in-place consumption APIs used by NetVSC (see get_next_pkt_raw(), put_pkt_raw() and commit_rd_index()). Fixes: a389fcfd2cb5 ("Drivers: hv: vmbus: Fix signaling logic in hv_need_to_signal_on_read()") Signed-off-by: Dexuan Cui <decui@microsoft.com> Reported-by: Rolf Neugebauer <rolf.neugebauer@docker.com> Tested-by: Rolf Neugebauer <rolf.neugebauer@docker.com> Cc: "K. Y. Srinivasan" <kys@microsoft.com> Cc: Haiyang Zhang <haiyangz@microsoft.com> Cc: Stephen Hemminger <sthemmin@microsoft.com> Cc: <stable@vger.kernel.org> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'sound/soc/codecs/sti-sas.c')