#ifndef __ACPI_ACPI_THERMAL_H #define __ACPI_ACPI_THERMAL_H #include #define ACPI_THERMAL_MAGIC 's' #define ACPI_THERMAL_GET_TRT_LEN _IOR(ACPI_THERMAL_MAGIC, 1, unsigned long) #define ACPI_THERMAL_GET_ART_LEN _IOR(ACPI_THERMAL_MAGIC, 2, unsigned long) #define ACPI_THERMAL_GET_TRT_COUNT _IOR(ACPI_THERMAL_MAGIC, 3, unsigned long) #define ACPI_THERMAL_GET_ART_COUNT _IOR(ACPI_THERMAL_MAGIC, 4, unsigned long) #define ACPI_THERMAL_GET_TRT _IOR(ACPI_THERMAL_MAGIC, 5, unsigned long) #define ACPI_THERMAL_GET_ART _IOR(ACPI_THERMAL_MAGIC, 6, unsigned long) struct art { acpi_handle source; acpi_handle target; u64 weight; u64 ac0_max; u64 ac1_max; u64 ac2_max; u64 ac3_max; u64 ac4_max; u64 ac5_max; u64 ac6_max; u64 ac7_max; u64 ac8_max; u64 ac9_max; } __packed; struct trt { acpi_handle source; acpi_handle target; u64 influence; u64 sample_period; u64 reverved1; u64 reverved2; u64 reverved3; u64 reverved4; } __packed; #define ACPI_NR_ART_ELEMENTS 13 /* for usrspace */ union art_object { struct { char source_device[8]; /* ACPI single name */ char target_device[8]; /* ACPI single name */ u64 weight; u64 ac0_max_level; u64 ac1_max_level; u64 ac2_max_level; u64 ac3_max_level; u64 ac4_max_level; u64 ac5_max_level; u64 ac6_max_level; u64 ac7_max_level; u64 ac8_max_level; u64 ac9_max_level; }; u64 __data[ACPI_NR_ART_ELEMENTS]; }; union trt_object { struct { char source_device[8]; /* ACPI single name */ char target_device[8]; /* ACPI single name */ u64 influence; u64 sample_period; u64 reserved[4]; }; u64 __data[8]; }; #ifdef __KERNEL__ int acpi_thermal_rel_misc_device_add(acpi_handle handle); int acpi_thermal_rel_misc_device_remove(acpi_handle handle); int acpi_parse_art(acpi_handle handle, int *art_count, struct art **arts, bool create_dev); int acpi_parse_trt(acpi_handle handle, int *trt_count, struct trt **trts, bool create_dev); #endif #endif /* __ACPI_ACPI_THERMAL_H */ f='/cgit.cgi/linux/net-next.git/diff/include/net/gtp.h?id=433e19cf33d34bb6751c874a9c00980552fe508c'>diff
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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 /include/net/gtp.h
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 'include/net/gtp.h')