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authorTobias Klauser <tklauser@distanz.ch>2020-06-15 18:05:09 +0200
committerTobias Klauser <tklauser@distanz.ch>2020-06-15 18:08:47 +0200
commitc6dd9abd8d7a5332d0c1078196528926054791ae (patch)
treefd9af7d858cacdb1e824e30dd61d02ee6c4d2daf /flowtop
parent4c641508fbc500e57b55609b60b17870c158c70c (diff)
mausezahn: remove unused MZ_SIZE_LONG_INT
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Diffstat (limited to 'flowtop')
0 files changed, 0 insertions, 0 deletions
ass='commit-msg'>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/usb/line6')