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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	stable@vger.kernel.org, Liu Bo <bo.liu@linux.alibaba.com>,
	Jens Axboe <axboe@kernel.dk>, Sasha Levin <sashal@kernel.org>
Subject: [PATCH 4.20 145/171] blk-iolatency: fix IO hang due to negative inflight counter
Date: Tue, 12 Mar 2019 10:08:45 -0700	[thread overview]
Message-ID: <20190312170400.091048401@linuxfoundation.org> (raw)
In-Reply-To: <20190312170347.868927101@linuxfoundation.org>

4.20-stable review patch.  If anyone has any objections, please let me know.

------------------

[ Upstream commit 8c772a9bfc7c07c76f4a58b58910452fbb20843b ]

Our test reported the following stack, and vmcore showed that
->inflight counter is -1.

[ffffc9003fcc38d0] __schedule at ffffffff8173d95d
[ffffc9003fcc3958] schedule at ffffffff8173de26
[ffffc9003fcc3970] io_schedule at ffffffff810bb6b6
[ffffc9003fcc3988] blkcg_iolatency_throttle at ffffffff813911cb
[ffffc9003fcc3a20] rq_qos_throttle at ffffffff813847f3
[ffffc9003fcc3a48] blk_mq_make_request at ffffffff8137468a
[ffffc9003fcc3b08] generic_make_request at ffffffff81368b49
[ffffc9003fcc3b68] submit_bio at ffffffff81368d7d
[ffffc9003fcc3bb8] ext4_io_submit at ffffffffa031be00 [ext4]
[ffffc9003fcc3c00] ext4_writepages at ffffffffa03163de [ext4]
[ffffc9003fcc3d68] do_writepages at ffffffff811c49ae
[ffffc9003fcc3d78] __filemap_fdatawrite_range at ffffffff811b6188
[ffffc9003fcc3e30] filemap_write_and_wait_range at ffffffff811b6301
[ffffc9003fcc3e60] ext4_sync_file at ffffffffa030cee8 [ext4]
[ffffc9003fcc3ea8] vfs_fsync_range at ffffffff8128594b
[ffffc9003fcc3ee8] do_fsync at ffffffff81285abd
[ffffc9003fcc3f18] sys_fsync at ffffffff81285d50
[ffffc9003fcc3f28] do_syscall_64 at ffffffff81003c04
[ffffc9003fcc3f50] entry_SYSCALL_64_after_swapgs at ffffffff81742b8e

The ->inflight counter may be negative (-1) if

1) blk-iolatency was disabled when the IO was issued,

2) blk-iolatency was enabled before this IO reached its endio,

3) the ->inflight counter is decreased from 0 to -1 in endio()

In fact the hang can be easily reproduced by the below script,

H=/sys/fs/cgroup/unified/
P=/sys/fs/cgroup/unified/test

echo "+io" > $H/cgroup.subtree_control
mkdir -p $P

echo $$ > $P/cgroup.procs

xfs_io -f -d -c "pwrite 0 4k" /dev/sdg

echo "`cat /sys/block/sdg/dev` target=1000000" > $P/io.latency

xfs_io -f -d -c "pwrite 0 4k" /dev/sdg

This fixes the problem by freezing the queue so that while
enabling/disabling iolatency, there is no inflight rq running.

Note that quiesce_queue is not needed as this only updating iolatency
configuration about which dispatching request_queue doesn't care.

Signed-off-by: Liu Bo <bo.liu@linux.alibaba.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 block/blk-iolatency.c | 52 +++++++++++++++++++++++++++++++++++++------
 1 file changed, 45 insertions(+), 7 deletions(-)

diff --git a/block/blk-iolatency.c b/block/blk-iolatency.c
index 38c35c32aff2..c1c72b42dda0 100644
--- a/block/blk-iolatency.c
+++ b/block/blk-iolatency.c
@@ -72,6 +72,7 @@
 #include <linux/sched/loadavg.h>
 #include <linux/sched/signal.h>
 #include <trace/events/block.h>
+#include <linux/blk-mq.h>
 #include "blk-rq-qos.h"
 #include "blk-stat.h"
 
@@ -648,6 +649,9 @@ static void blkcg_iolatency_done_bio(struct rq_qos *rqos, struct bio *bio)
 		return;
 
 	enabled = blk_iolatency_enabled(iolat->blkiolat);
+	if (!enabled)
+		return;
+
 	while (blkg && blkg->parent) {
 		iolat = blkg_to_lat(blkg);
 		if (!iolat) {
@@ -657,7 +661,7 @@ static void blkcg_iolatency_done_bio(struct rq_qos *rqos, struct bio *bio)
 		rqw = &iolat->rq_wait;
 
 		atomic_dec(&rqw->inflight);
-		if (!enabled || iolat->min_lat_nsec == 0)
+		if (iolat->min_lat_nsec == 0)
 			goto next;
 		iolatency_record_time(iolat, &bio->bi_issue, now,
 				      issue_as_root);
@@ -801,10 +805,13 @@ int blk_iolatency_init(struct request_queue *q)
 	return 0;
 }
 
-static void iolatency_set_min_lat_nsec(struct blkcg_gq *blkg, u64 val)
+/*
+ * return 1 for enabling iolatency, return -1 for disabling iolatency, otherwise
+ * return 0.
+ */
+static int iolatency_set_min_lat_nsec(struct blkcg_gq *blkg, u64 val)
 {
 	struct iolatency_grp *iolat = blkg_to_lat(blkg);
-	struct blk_iolatency *blkiolat = iolat->blkiolat;
 	u64 oldval = iolat->min_lat_nsec;
 
 	iolat->min_lat_nsec = val;
@@ -813,9 +820,10 @@ static void iolatency_set_min_lat_nsec(struct blkcg_gq *blkg, u64 val)
 				    BLKIOLATENCY_MAX_WIN_SIZE);
 
 	if (!oldval && val)
-		atomic_inc(&blkiolat->enabled);
+		return 1;
 	if (oldval && !val)
-		atomic_dec(&blkiolat->enabled);
+		return -1;
+	return 0;
 }
 
 static void iolatency_clear_scaling(struct blkcg_gq *blkg)
@@ -847,6 +855,7 @@ static ssize_t iolatency_set_limit(struct kernfs_open_file *of, char *buf,
 	u64 lat_val = 0;
 	u64 oldval;
 	int ret;
+	int enable = 0;
 
 	ret = blkg_conf_prep(blkcg, &blkcg_policy_iolatency, buf, &ctx);
 	if (ret)
@@ -881,7 +890,12 @@ static ssize_t iolatency_set_limit(struct kernfs_open_file *of, char *buf,
 	blkg = ctx.blkg;
 	oldval = iolat->min_lat_nsec;
 
-	iolatency_set_min_lat_nsec(blkg, lat_val);
+	enable = iolatency_set_min_lat_nsec(blkg, lat_val);
+	if (enable) {
+		WARN_ON_ONCE(!blk_get_queue(blkg->q));
+		blkg_get(blkg);
+	}
+
 	if (oldval != iolat->min_lat_nsec) {
 		iolatency_clear_scaling(blkg);
 	}
@@ -889,6 +903,24 @@ static ssize_t iolatency_set_limit(struct kernfs_open_file *of, char *buf,
 	ret = 0;
 out:
 	blkg_conf_finish(&ctx);
+	if (ret == 0 && enable) {
+		struct iolatency_grp *tmp = blkg_to_lat(blkg);
+		struct blk_iolatency *blkiolat = tmp->blkiolat;
+
+		blk_mq_freeze_queue(blkg->q);
+
+		if (enable == 1)
+			atomic_inc(&blkiolat->enabled);
+		else if (enable == -1)
+			atomic_dec(&blkiolat->enabled);
+		else
+			WARN_ON_ONCE(1);
+
+		blk_mq_unfreeze_queue(blkg->q);
+
+		blkg_put(blkg);
+		blk_put_queue(blkg->q);
+	}
 	return ret ?: nbytes;
 }
 
@@ -1024,8 +1056,14 @@ static void iolatency_pd_offline(struct blkg_policy_data *pd)
 {
 	struct iolatency_grp *iolat = pd_to_lat(pd);
 	struct blkcg_gq *blkg = lat_to_blkg(iolat);
+	struct blk_iolatency *blkiolat = iolat->blkiolat;
+	int ret;
 
-	iolatency_set_min_lat_nsec(blkg, 0);
+	ret = iolatency_set_min_lat_nsec(blkg, 0);
+	if (ret == 1)
+		atomic_inc(&blkiolat->enabled);
+	if (ret == -1)
+		atomic_dec(&blkiolat->enabled);
 	iolatency_clear_scaling(blkg);
 }
 
-- 
2.19.1




  parent reply	other threads:[~2019-03-12 17:56 UTC|newest]

Thread overview: 178+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-03-12 17:06 [PATCH 4.20 000/171] 4.20.16-stable review Greg Kroah-Hartman
2019-03-12 17:06 ` [PATCH 4.20 001/171] media: uvcvideo: Fix type check leading to overflow Greg Kroah-Hartman
2019-03-12 17:06 ` [PATCH 4.20 002/171] vti4: Fix a ipip packet processing bug in IPCOMP virtual tunnel Greg Kroah-Hartman
2019-03-12 17:06 ` [PATCH 4.20 003/171] perf ordered_events: Fix crash in ordered_events__free Greg Kroah-Hartman
2019-03-12 17:06 ` [PATCH 4.20 004/171] netfilter: nft_compat: use refcnt_t type for nft_xt reference count Greg Kroah-Hartman
2019-03-12 17:06 ` [PATCH 4.20 005/171] netfilter: nft_compat: make lists per netns Greg Kroah-Hartman
2019-03-12 17:06 ` [PATCH 4.20 006/171] netfilter: nft_compat: destroy function must not have side effects Greg Kroah-Hartman
2019-03-12 17:06 ` [PATCH 4.20 007/171] perf script: Fix crash with printing mixed trace point and other events Greg Kroah-Hartman
2019-03-12 17:06 ` [PATCH 4.20 008/171] perf core: Fix perf_proc_update_handler() bug Greg Kroah-Hartman
2019-03-12 17:06 ` [PATCH 4.20 009/171] perf python: Remove -fstack-clash-protection when building with some clang versions Greg Kroah-Hartman
2019-03-12 17:06 ` [PATCH 4.20 010/171] perf tools: Handle TOPOLOGY headers with no CPU Greg Kroah-Hartman
2019-03-12 17:06 ` [PATCH 4.20 011/171] perf script: Fix crash when processing recorded stat data Greg Kroah-Hartman
2019-03-12 17:06 ` [PATCH 4.20 012/171] IB/{hfi1, qib}: Fix WC.byte_len calculation for UD_SEND_WITH_IMM Greg Kroah-Hartman
2019-03-12 17:06 ` [PATCH 4.20 013/171] iommu/amd: Call free_iova_fast with pfn in map_sg Greg Kroah-Hartman
2019-03-12 17:06 ` [PATCH 4.20 014/171] iommu/amd: Unmap all mapped pages in error path of map_sg Greg Kroah-Hartman
2019-03-12 17:06 ` [PATCH 4.20 015/171] riscv: fixup max_low_pfn with PFN_DOWN Greg Kroah-Hartman
2019-03-12 17:06 ` [PATCH 4.20 016/171] ipvs: Fix signed integer overflow when setsockopt timeout Greg Kroah-Hartman
2019-03-12 17:06 ` [PATCH 4.20 017/171] iommu/amd: Fix IOMMU page flush when detach device from a domain Greg Kroah-Hartman
2019-03-12 17:06 ` [PATCH 4.20 018/171] clk: ti: Fix error handling in ti_clk_parse_divider_data() Greg Kroah-Hartman
2019-03-12 17:06 ` [PATCH 4.20 019/171] clk: qcom: gcc: Use active only source for CPUSS clocks Greg Kroah-Hartman
2019-03-12 17:06 ` [PATCH 4.20 020/171] xtensa: SMP: fix ccount_timer_shutdown Greg Kroah-Hartman
2019-03-12 17:06 ` [PATCH 4.20 021/171] RDMA/umem: Add missing initialization of owning_mm Greg Kroah-Hartman
2019-03-12 17:06 ` [PATCH 4.20 022/171] riscv: Adjust mmap base address at a third of task size Greg Kroah-Hartman
2019-03-12 17:06 ` [PATCH 4.20 023/171] IB/ipoib: Fix for use-after-free in ipoib_cm_tx_start Greg Kroah-Hartman
2019-03-12 17:06 ` [PATCH 4.20 024/171] selftests: cpu-hotplug: fix case where CPUs offline > CPUs present Greg Kroah-Hartman
2019-03-12 17:06 ` [PATCH 4.20 025/171] xtensa: SMP: fix secondary CPU initialization Greg Kroah-Hartman
2019-03-12 17:06 ` [PATCH 4.20 026/171] xtensa: smp_lx200_defconfig: fix vectors clash Greg Kroah-Hartman
2019-03-12 17:06 ` [PATCH 4.20 027/171] xtensa: SMP: mark each possible CPU as present Greg Kroah-Hartman
2019-03-12 17:06 ` [PATCH 4.20 028/171] iomap: get/put the page in iomap_page_create/release() Greg Kroah-Hartman
2019-03-12 17:06 ` [PATCH 4.20 029/171] iomap: fix a use after free in iomap_dio_rw Greg Kroah-Hartman
2019-03-12 17:06 ` [PATCH 4.20 030/171] xtensa: SMP: limit number of possible CPUs by NR_CPUS Greg Kroah-Hartman
2019-03-12 17:06 ` [PATCH 4.20 031/171] net: altera_tse: fix msgdma_tx_completion on non-zero fill_level case Greg Kroah-Hartman
2019-03-12 17:06 ` [PATCH 4.20 032/171] net: hns: Fix for missing of_node_put() after of_parse_phandle() Greg Kroah-Hartman
2019-03-12 17:06 ` [PATCH 4.20 033/171] net: hns: Restart autoneg need return failed when autoneg off Greg Kroah-Hartman
2019-03-12 17:06 ` [PATCH 4.20 034/171] net: hns: Fix wrong read accesses via Clause 45 MDIO protocol Greg Kroah-Hartman
2019-03-12 17:06 ` [PATCH 4.20 035/171] net: stmmac: dwmac-rk: fix error handling in rk_gmac_powerup() Greg Kroah-Hartman
2019-03-12 17:06 ` [PATCH 4.20 036/171] netfilter: ebtables: compat: un-break 32bit setsockopt when no rules are present Greg Kroah-Hartman
2019-03-12 17:06 ` [PATCH 4.20 037/171] gpio: vf610: Mask all GPIO interrupts Greg Kroah-Hartman
2019-03-12 17:06 ` [PATCH 4.20 038/171] selftests: net: use LDLIBS instead of LDFLAGS Greg Kroah-Hartman
2019-03-12 17:06 ` [PATCH 4.20 039/171] selftests: timers: " Greg Kroah-Hartman
2019-03-12 17:07 ` [PATCH 4.20 040/171] nfs: Fix NULL pointer dereference of dev_name Greg Kroah-Hartman
2019-03-12 17:07 ` [PATCH 4.20 041/171] qed: Fix bug in tx promiscuous mode settings Greg Kroah-Hartman
2019-03-12 17:07 ` [PATCH 4.20 042/171] qed: Fix LACP pdu drops for VFs Greg Kroah-Hartman
2019-03-12 17:07 ` [PATCH 4.20 043/171] qed: Fix VF probe failure while FLR Greg Kroah-Hartman
2019-03-12 17:07 ` [PATCH 4.20 044/171] qed: Fix system crash in ll2 xmit Greg Kroah-Hartman
2019-03-12 17:07 ` [PATCH 4.20 045/171] qed: Fix stack out of bounds bug Greg Kroah-Hartman
2019-03-12 17:07 ` [PATCH 4.20 046/171] scsi: libfc: free skb when receiving invalid flogi resp Greg Kroah-Hartman
2019-03-12 17:07 ` [PATCH 4.20 047/171] scsi: scsi_debug: fix write_same with virtual_gb problem Greg Kroah-Hartman
2019-03-12 17:07 ` [PATCH 4.20 048/171] scsi: bnx2fc: Fix error handling in probe() Greg Kroah-Hartman
2019-03-12 17:07 ` [PATCH 4.20 049/171] scsi: 53c700: pass correct "dev" to dma_alloc_attrs() Greg Kroah-Hartman
2019-03-12 17:07 ` [PATCH 4.20 050/171] platform/x86: Fix unmet dependency warning for ACPI_CMPC Greg Kroah-Hartman
2019-03-12 17:07 ` [PATCH 4.20 051/171] platform/x86: Fix unmet dependency warning for SAMSUNG_Q10 Greg Kroah-Hartman
2019-03-12 17:07 ` [PATCH 4.20 052/171] x86/cpu: Add Atom Tremont (Jacobsville) Greg Kroah-Hartman
2019-03-12 17:07 ` [PATCH 4.20 053/171] net: macb: Apply RXUBR workaround only to versions with errata Greg Kroah-Hartman
2019-03-12 17:07 ` [PATCH 4.20 054/171] x86/boot/compressed/64: Set EFER.LME=1 in 32-bit trampoline before returning to long mode Greg Kroah-Hartman
2019-03-12 17:07 ` [PATCH 4.20 055/171] cifs: fix computation for MAX_SMB2_HDR_SIZE Greg Kroah-Hartman
2019-03-12 17:07 ` [PATCH 4.20 056/171] x86/microcode/amd: Dont falsely trick the late loading mechanism Greg Kroah-Hartman
2019-03-12 17:07 ` [PATCH 4.20 057/171] apparmor: Fix warning about unused function apparmor_ipv6_postroute Greg Kroah-Hartman
2019-03-12 17:07 ` [PATCH 4.20 058/171] arm64: kprobe: Always blacklist the KVM world-switch code Greg Kroah-Hartman
2019-03-12 17:07 ` [PATCH 4.20 059/171] apparmor: Fix aa_label_build() error handling for failed merges Greg Kroah-Hartman
2019-03-12 17:07 ` [PATCH 4.20 060/171] x86/kexec: Dont setup EFI info if EFI runtime is not enabled Greg Kroah-Hartman
2019-03-12 17:07 ` [PATCH 4.20 061/171] proc: fix /proc/net/* after setns(2) Greg Kroah-Hartman
2019-03-12 17:07 ` [PATCH 4.20 062/171] x86_64: increase stack size for KASAN_EXTRA Greg Kroah-Hartman
2019-03-12 17:07 ` [PATCH 4.20 063/171] mm, memory_hotplug: is_mem_section_removable do not pass the end of a zone Greg Kroah-Hartman
2019-03-12 17:07 ` [PATCH 4.20 064/171] mm, memory_hotplug: test_pages_in_a_zone do not pass the end of zone Greg Kroah-Hartman
2019-03-12 17:07 ` [PATCH 4.20 065/171] psi: fix aggregation idle shut-off Greg Kroah-Hartman
2019-03-12 17:07 ` [PATCH 4.20 066/171] lib/test_kmod.c: potential double free in error handling Greg Kroah-Hartman
2019-03-12 17:07 ` [PATCH 4.20 067/171] fs/drop_caches.c: avoid softlockups in drop_pagecache_sb() Greg Kroah-Hartman
2019-03-12 17:07 ` [PATCH 4.20 068/171] autofs: drop dentry reference only when it is never used Greg Kroah-Hartman
2019-03-12 17:07 ` [PATCH 4.20 069/171] autofs: fix error return in autofs_fill_super() Greg Kroah-Hartman
2019-03-12 17:07 ` [PATCH 4.20 070/171] mm, memory_hotplug: fix off-by-one in is_pageblock_removable Greg Kroah-Hartman
2019-03-12 17:07 ` [PATCH 4.20 071/171] ARM: OMAP: dts: N950/N9: fix onenand timings Greg Kroah-Hartman
2019-03-12 17:07 ` [PATCH 4.20 072/171] ARM: dts: omap4-droid4: Fix typo in cpcap IRQ flags Greg Kroah-Hartman
2019-03-12 17:07 ` [PATCH 4.20 073/171] ARM: dts: sun8i: h3: Add ethernet0 alias to Beelink X2 Greg Kroah-Hartman
2019-03-12 17:07 ` [PATCH 4.20 074/171] arm: dts: meson: Fix IRQ trigger type for macirq Greg Kroah-Hartman
2019-03-12 17:07 ` [PATCH 4.20 075/171] ARM: dts: meson8b: odroidc1: mark the SD card detection GPIO active-low Greg Kroah-Hartman
2019-03-12 17:07 ` [PATCH 4.20 076/171] ARM: dts: meson8b: ec100: " Greg Kroah-Hartman
2019-03-12 17:07 ` [PATCH 4.20 077/171] ARM: dts: meson8m2: mxiii-plus: " Greg Kroah-Hartman
2019-03-12 17:07 ` [PATCH 4.20 078/171] signal: Make siginmask safe when passed a signal of 0 Greg Kroah-Hartman
2019-03-12 17:07 ` [PATCH 4.20 079/171] ARM: dts: imx6sx: correct backward compatible of gpt Greg Kroah-Hartman
2019-03-12 17:07 ` [PATCH 4.20 080/171] arm64: dts: renesas: r8a7796: Enable DMA for SCIF2 Greg Kroah-Hartman
2019-03-12 17:07 ` [PATCH 4.20 081/171] arm64: dts: renesas: r8a77965: " Greg Kroah-Hartman
2019-03-12 17:07 ` [PATCH 4.20 082/171] soc: fsl: qbman: avoid race in clearing QMan interrupt Greg Kroah-Hartman
2019-03-12 17:07 ` [PATCH 4.20 083/171] pinctrl: mcp23s08: spi: Fix regmap allocation for mcp23s18 Greg Kroah-Hartman
2019-03-12 17:07 ` [PATCH 4.20 084/171] wlcore: sdio: Fixup power on/off sequence Greg Kroah-Hartman
2019-03-12 17:07 ` [PATCH 4.20 085/171] bpftool: Fix prog dump by tag Greg Kroah-Hartman
2019-03-12 17:07 ` [PATCH 4.20 086/171] bpftool: fix percpu maps updating Greg Kroah-Hartman
2019-03-12 17:07 ` [PATCH 4.20 087/171] bpf: sock recvbuff must be limited by rmem_max in bpf_setsockopt() Greg Kroah-Hartman
2019-03-12 17:07 ` [PATCH 4.20 088/171] ARM: pxa: ssp: unneeded to free devm_ allocated data Greg Kroah-Hartman
2019-03-12 17:07 ` [PATCH 4.20 089/171] ARM: dts: omap3-gta04: Fix graph_port warning Greg Kroah-Hartman
2019-03-12 17:07 ` [PATCH 4.20 090/171] ARM: dts: n900: fix mmc1 card detect gpio polarity Greg Kroah-Hartman
2019-03-12 17:07 ` [PATCH 4.20 091/171] ARM: dts: am335x-shc.dts: fix wrong cd pin level Greg Kroah-Hartman
2019-03-12 17:07 ` [PATCH 4.20 092/171] arm64: dts: add msm8996 compatible to gicv3 Greg Kroah-Hartman
2019-03-12 17:07 ` [PATCH 4.20 093/171] batman-adv: release station info tidstats Greg Kroah-Hartman
2019-03-12 17:07 ` [PATCH 4.20 094/171] MIPS: DTS: jz4740: Correct interrupt number of DMA core Greg Kroah-Hartman
2019-03-12 17:07 ` [PATCH 4.20 095/171] DTS: CI20: Fix bugs in ci20s device tree Greg Kroah-Hartman
2019-03-12 17:07 ` [PATCH 4.20 096/171] usb: phy: fix link errors Greg Kroah-Hartman
2019-03-12 17:07 ` [PATCH 4.20 097/171] usb: dwc3: exynos: Fix error handling of clk_prepare_enable Greg Kroah-Hartman
2019-03-12 17:07 ` [PATCH 4.20 098/171] irqchip/gic-v4: Fix occasional VLPI drop Greg Kroah-Hartman
2019-03-12 17:07 ` [PATCH 4.20 099/171] irqchip/gic-v3-its: Gracefully fail on LPI exhaustion Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 4.20 100/171] irqchip/mmp: Only touch the PJ4 IRQ & FIQ bits on enable/disable Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 4.20 101/171] drm/amdgpu: Add missing power attribute to APU check Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 4.20 102/171] drm/radeon: check if device is root before getting pci speed caps Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 4.20 103/171] drm/amdgpu: Transfer fences to dmabuf importer Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 4.20 104/171] net: stmmac: Fallback to Platform Data clock in Watchdog conversion Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 4.20 105/171] net: stmmac: Send TSO packets always from Queue 0 Greg Kroah-Hartman
2019-04-08 20:22   ` Ben Hutchings
2019-03-12 17:08 ` [PATCH 4.20 106/171] net: stmmac: Disable EEE mode earlier in XMIT callback Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 4.20 107/171] irqchip/gic-v3-its: Fix ITT_entry_size accessor Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 4.20 108/171] relay: check return of create_buf_file() properly Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 4.20 109/171] ath10k: correct bus type for WCN3990 Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 4.20 110/171] bpf, selftests: fix handling of sparse CPU allocations Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 4.20 111/171] bpf: run bpf programs with preemption disabled Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 4.20 112/171] bpf: fix lockdep false positive in percpu_freelist Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 4.20 113/171] bpf: fix potential deadlock in bpf_prog_register Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 4.20 114/171] bpf: Fix syscalls stackmap lookup potential deadlock Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 4.20 115/171] drm/amdgpu: Implement doorbell self-ring for NBIO 7.4 Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 4.20 116/171] drm/amdgpu: fix the incorrect external id for raven series Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 4.20 117/171] drm/sun4i: tcon: Prepare and enable TCON channel 0 clock at init Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 4.20 118/171] dmaengine: at_xdmac: Fix wrongfull report of a channel as in use Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 4.20 119/171] vsock/virtio: fix kernel panic after device hot-unplug Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 4.20 120/171] vsock/virtio: reset connected sockets on device removal Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 4.20 121/171] dmaengine: dmatest: Abort test in case of mapping error Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 4.20 122/171] selftests: netfilter: fix config fragment CONFIG_NF_TABLES_INET Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 4.20 123/171] selftests: netfilter: add simple masq/redirect test cases Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 4.20 124/171] netfilter: nf_nat: skip nat clash resolution for same-origin entries Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 4.20 125/171] s390/qeth: release cmd buffer in error paths Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 4.20 126/171] s390/qeth: fix use-after-free in error path Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 4.20 127/171] s390/qeth: cancel close_dev work before removing a card Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 4.20 128/171] s390/qeth: conclude all event processing before offlining " Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 4.20 129/171] perf symbols: Filter out hidden symbols from labels Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 4.20 130/171] perf trace: Support multiple "vfs_getname" probes Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 4.20 131/171] MIPS: Loongson: Introduce and use loongson_llsc_mb() Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 4.20 132/171] MIPS: Remove function size check in get_frame_info() Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 4.20 133/171] Revert "scsi: libfc: Add WARN_ON() when deleting rports" Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 4.20 134/171] i2c: omap: Use noirq system sleep pm ops to idle device for suspend Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 4.20 135/171] drm/amdgpu: use spin_lock_irqsave to protect vm_manager.pasid_idr Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 4.20 136/171] drm/omap: dsi: Fix crash in DSI debug dumps Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 4.20 137/171] drm/omap: dsi: Fix OF platform depopulate Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 4.20 138/171] drm/omap: dsi: Hack-fix DSI bus flags Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 4.20 139/171] nvme: lock NS list changes while handling command effects Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 4.20 140/171] nvme-pci: fix rapid add remove sequence Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 4.20 141/171] fs: ratelimit __find_get_block_slow() failure message Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 4.20 142/171] qed: Fix EQ full firmware assert Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 4.20 143/171] qed: Consider TX tcs while deriving the max num_queues for PF Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 4.20 144/171] qede: Fix system crash on configuring channels Greg Kroah-Hartman
2019-03-12 17:08 ` Greg Kroah-Hartman [this message]
2019-03-12 17:08 ` [PATCH 4.20 146/171] nvme-pci: add missing unlock for reset error Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 4.20 147/171] netfilter: nf_tables: unbind set in rule from commit path Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 4.20 148/171] netfilter: nft_compat: dont use refcount_inc on newly allocated entry Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 4.20 149/171] Input: wacom_serial4 - add support for Wacom ArtPad II tablet Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 4.20 150/171] Input: elan_i2c - add id for touchpad found in Lenovo s21e-20 Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 4.20 151/171] iscsi_ibft: Fix missing break in switch statement Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 4.20 152/171] scsi: aacraid: " Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 4.20 153/171] x86/PCI: Fixup RTIT_BAR of Intel Denverton Trace Hub Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 4.20 154/171] arm64: dts: zcu100-revC: Give wifi some time after power-on Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 4.20 155/171] arm64: dts: hikey: " Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 4.20 156/171] arm64: dts: hikey: Revert "Enable HS200 mode on eMMC" Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 4.20 157/171] ARM: dts: exynos: Fix pinctrl definition for eMMC RTSN line on Odroid X2/U3 Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 4.20 158/171] ARM: dts: exynos: Add minimal clkout parameters to Exynos3250 PMU Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 4.20 159/171] ARM: dts: exynos: Fix max voltage for buck8 regulator on Odroid XU3/XU4 Greg Kroah-Hartman
2019-03-12 17:09 ` [PATCH 4.20 160/171] drm: disable uncached DMA optimization for ARM and arm64 Greg Kroah-Hartman
2019-03-12 17:09 ` [PATCH 4.20 161/171] media: Revert "media: rc: some events are dropped by userspace" Greg Kroah-Hartman
2019-03-12 17:09 ` [PATCH 4.20 162/171] Revert "PCI/PME: Implement runtime PM callbacks" Greg Kroah-Hartman
2019-03-12 17:09 ` [PATCH 4.20 163/171] sk_msg: Always cancel strp work before freeing the psock Greg Kroah-Hartman
2019-03-12 17:09 ` [PATCH 4.20 164/171] bpf: Stop the psock parser before canceling its work Greg Kroah-Hartman
2019-03-12 17:09 ` [PATCH 4.20 165/171] gfs2: Fix missed wakeups in find_insert_glock Greg Kroah-Hartman
2019-03-12 17:09 ` [PATCH 4.20 166/171] staging: erofs: keep corrupted fs from crashing kernel in erofs_namei() Greg Kroah-Hartman
2019-03-12 17:09 ` [PATCH 4.20 167/171] ath9k: Avoid OF no-EEPROM quirks without qca,no-eeprom Greg Kroah-Hartman
2019-03-12 17:09 ` [PATCH 4.20 168/171] perf/x86/intel: Make cpuc allocations consistent Greg Kroah-Hartman
2019-03-12 17:09 ` [PATCH 4.20 169/171] perf/x86/intel: Generalize dynamic constraint creation Greg Kroah-Hartman
2019-03-12 17:09 ` [PATCH 4.20 170/171] x86: Add TSX Force Abort CPUID/MSR Greg Kroah-Hartman
2019-03-12 17:09 ` [PATCH 4.20 171/171] perf/x86/intel: Implement support for TSX Force Abort Greg Kroah-Hartman
2019-03-13 11:54 ` [PATCH 4.20 000/171] 4.20.16-stable review Naresh Kamboju
2019-03-13 20:56   ` Greg Kroah-Hartman
2019-03-13 17:36 ` Jon Hunter
2019-03-13 20:56   ` Greg Kroah-Hartman
2019-03-13 20:35 ` Guenter Roeck

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