# # Generic config for a machine # # Name your machine (the DNS name, what you ssh to) MACHINE = foo # BOX can be different than foo, if the machine BOX has # multiple partitions with different systems installed. For example, # you may have a i386 and x86_64 installation on a test box. # If this is the case, MACHINE defines the way to connect to the # machine, which may be different between which system the machine # is booting into. BOX is used for the scripts to reboot and power cycle # the machine, where it does not matter which system the machine boots into. # #BOX := bar # Define a way to read the console CONSOLE = stty -F /dev/ttyS0 115200 parodd; cat /dev/ttyS0 # The include files will set up the type of test to run. Just set TEST to # which test you want to run. # # TESTS = patchcheck, randconfig, boot, test, config-bisect, bisect, min-config # # See the include/*.conf files that define these tests # TEST := patchcheck # Some tests may have more than one test to run. Define MULTI := 1 to run # the extra tests. MULTI := 0 # In case you want to differentiate which type of system you are testing BITS := 64 # REBOOT = none, error, fail, empty # See include/defaults.conf REBOOT := empty # The defaults file will set up various settings that can be used by all # machine configs. INCLUDE include/defaults.conf # In case you need to add a patch for a bisect or something #PRE_BUILD = patch -p1 < ${THIS_DIR}/fix.patch # Reset the repo after the build and remove all 'test' modules from the target # Notice that DO_POST_BUILD is a variable (defined by ':=') and POST_BUILD # is the option (defined by '=') DO_POST_BUILD := git reset --hard POST_BUILD = ${SSH} 'rm -rf /lib/modules/*-test*'; ${DO_POST_BUILD} # The following files each handle a different test case. # Having them included allows you to set up more than one machine and share # the same tests. INCLUDE include/patchcheck.conf INCLUDE include/tests.conf INCLUDE include/bisect.conf INCLUDE include/min-config.conf 74a9c00980552fe508c'>commitdiff
path: root/drivers/usb/host/ehci-dbg.c
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authorDexuan Cui <decui@microsoft.com>2017-01-28 11:46:02 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-01-31 10:59:48 +0100
commit433e19cf33d34bb6751c874a9c00980552fe508c (patch)
treece6547ef2987fbb289fa28f03536328a42781651 /drivers/usb/host/ehci-dbg.c
parent191e885a2e130e639bb0c8ee350d7047294f2ce6 (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 'drivers/usb/host/ehci-dbg.c')