From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Zhengjun Xing <zhengjun.xing@linux.intel.com>,
Tom Zanussi <tom.zanussi@linux.intel.com>,
Steven Rostedt <rostedt@goodmis.org>,
Sasha Levin <sashal@kernel.org>
Subject: [PATCH AUTOSEL 4.19 27/38] tracing: Fix "gfp_t" format for synthetic events
Date: Wed, 30 Oct 2019 11:53:55 -0400 [thread overview]
Message-ID: <20191030155406.10109-27-sashal@kernel.org> (raw)
In-Reply-To: <20191030155406.10109-1-sashal@kernel.org>
From: Zhengjun Xing <zhengjun.xing@linux.intel.com>
[ Upstream commit 9fa8c9c647be624e91b09ecffa7cd97ee0600b40 ]
In the format of synthetic events, the "gfp_t" is shown as "signed:1",
but in fact the "gfp_t" is "unsigned", should be shown as "signed:0".
The issue can be reproduced by the following commands:
echo 'memlatency u64 lat; unsigned int order; gfp_t gfp_flags; int migratetype' > /sys/kernel/debug/tracing/synthetic_events
cat /sys/kernel/debug/tracing/events/synthetic/memlatency/format
name: memlatency
ID: 2233
format:
field:unsigned short common_type; offset:0; size:2; signed:0;
field:unsigned char common_flags; offset:2; size:1; signed:0;
field:unsigned char common_preempt_count; offset:3; size:1; signed:0;
field:int common_pid; offset:4; size:4; signed:1;
field:u64 lat; offset:8; size:8; signed:0;
field:unsigned int order; offset:16; size:4; signed:0;
field:gfp_t gfp_flags; offset:24; size:4; signed:1;
field:int migratetype; offset:32; size:4; signed:1;
print fmt: "lat=%llu, order=%u, gfp_flags=%x, migratetype=%d", REC->lat, REC->order, REC->gfp_flags, REC->migratetype
Link: http://lkml.kernel.org/r/20191018012034.6404-1-zhengjun.xing@linux.intel.com
Reviewed-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Signed-off-by: Zhengjun Xing <zhengjun.xing@linux.intel.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
kernel/trace/trace_events_hist.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/kernel/trace/trace_events_hist.c b/kernel/trace/trace_events_hist.c
index bdf104596d122..dac518977e7d0 100644
--- a/kernel/trace/trace_events_hist.c
+++ b/kernel/trace/trace_events_hist.c
@@ -448,6 +448,8 @@ static bool synth_field_signed(char *type)
{
if (strncmp(type, "u", 1) == 0)
return false;
+ if (strcmp(type, "gfp_t") == 0)
+ return false;
return true;
}
--
2.20.1
next prev parent reply other threads:[~2019-10-30 15:55 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-30 15:53 [PATCH AUTOSEL 4.19 01/38] regulator: of: fix suspend-min/max-voltage parsing Sasha Levin
2019-10-30 15:53 ` [PATCH AUTOSEL 4.19 02/38] ASoC: wm8994: Do not register inapplicable controls for WM1811 Sasha Levin
2019-10-30 15:53 ` [PATCH AUTOSEL 4.19 03/38] arm64: dts: allwinner: a64: pine64-plus: Add PHY regulator delay Sasha Levin
2019-10-30 15:53 ` [PATCH AUTOSEL 4.19 04/38] arm64: dts: allwinner: a64: sopine-baseboard: " Sasha Levin
2019-10-30 15:53 ` [PATCH AUTOSEL 4.19 05/38] arm64: dts: Fix gpio to pinmux mapping Sasha Levin
2019-10-30 15:53 ` [PATCH AUTOSEL 4.19 06/38] regulator: ti-abb: Fix timeout in ti_abb_wait_txdone/ti_abb_clear_all_txdone Sasha Levin
2019-10-30 15:53 ` [PATCH AUTOSEL 4.19 07/38] ASoC: rt5682: add NULL handler to set_jack function Sasha Levin
2019-10-30 15:53 ` [PATCH AUTOSEL 4.19 08/38] regulator: pfuze100-regulator: Variable "val" in pfuze100_regulator_probe() could be uninitialized Sasha Levin
2019-10-30 15:53 ` [PATCH AUTOSEL 4.19 09/38] ASoC: wm_adsp: Don't generate kcontrols without READ flags Sasha Levin
2019-10-30 15:53 ` [PATCH AUTOSEL 4.19 10/38] ASoc: rockchip: i2s: Fix RPM imbalance Sasha Levin
2019-10-30 15:53 ` [PATCH AUTOSEL 4.19 11/38] ARM: dts: logicpd-torpedo-som: Remove twl_keypad Sasha Levin
2019-10-30 15:53 ` [PATCH AUTOSEL 4.19 12/38] pinctrl: ns2: Fix off by one bugs in ns2_pinmux_enable() Sasha Levin
2019-10-30 15:53 ` [PATCH AUTOSEL 4.19 13/38] ARM: mm: fix alignment handler faults under memory pressure Sasha Levin
2019-10-30 15:53 ` [PATCH AUTOSEL 4.19 14/38] scsi: qla2xxx: fix a potential NULL pointer dereference Sasha Levin
2019-10-30 15:53 ` [PATCH AUTOSEL 4.19 15/38] scsi: scsi_dh_alua: handle RTPG sense code correctly during state transitions Sasha Levin
2019-10-30 15:53 ` [PATCH AUTOSEL 4.19 16/38] scsi: sni_53c710: fix compilation error Sasha Levin
2019-10-30 15:53 ` [PATCH AUTOSEL 4.19 17/38] scsi: fix kconfig dependency warning related to 53C700_LE_ON_BE Sasha Levin
2019-10-30 15:53 ` [PATCH AUTOSEL 4.19 18/38] ARM: 8914/1: NOMMU: Fix exc_ret for XIP Sasha Levin
2019-10-30 15:53 ` [PATCH AUTOSEL 4.19 19/38] ARM: dts: imx7s: Correct GPT's ipg clock source Sasha Levin
2019-10-30 15:53 ` [PATCH AUTOSEL 4.19 20/38] perf c2c: Fix memory leak in build_cl_output() Sasha Levin
2019-10-30 15:53 ` [PATCH AUTOSEL 4.19 21/38] USB: legousbtower: fix a signedness bug in tower_probe() Sasha Levin
2019-10-30 15:53 ` [PATCH AUTOSEL 4.19 22/38] 8250-men-mcb: fix error checking when get_num_ports returns -ENODEV Sasha Levin
2019-10-30 15:53 ` [PATCH AUTOSEL 4.19 23/38] perf kmem: Fix memory leak in compact_gfp_flags() Sasha Levin
2019-10-30 15:53 ` [PATCH AUTOSEL 4.19 24/38] ARM: davinci: dm365: Fix McBSP dma_slave_map entry Sasha Levin
2019-10-30 15:53 ` [PATCH AUTOSEL 4.19 25/38] drm/amdgpu: fix potential VM faults Sasha Levin
2019-10-30 15:53 ` [PATCH AUTOSEL 4.19 26/38] scsi: target: core: Do not overwrite CDB byte 1 Sasha Levin
2019-10-30 15:53 ` Sasha Levin [this message]
2019-10-30 15:53 ` [PATCH AUTOSEL 4.19 28/38] ARM: 8926/1: v7m: remove register save to stack before svc Sasha Levin
2019-10-30 15:53 ` [PATCH AUTOSEL 4.19 29/38] of: unittest: fix memory leak in unittest_data_add Sasha Levin
2019-10-30 15:53 ` [PATCH AUTOSEL 4.19 30/38] MIPS: bmips: mark exception vectors as char arrays Sasha Levin
2019-10-30 15:53 ` [PATCH AUTOSEL 4.19 31/38] irqchip/gic-v3-its: Use the exact ITSList for VMOVP Sasha Levin
2019-10-30 15:54 ` [PATCH AUTOSEL 4.19 32/38] i2c: stm32f7: fix first byte to send in slave mode Sasha Levin
2019-10-30 15:54 ` [PATCH AUTOSEL 4.19 33/38] i2c: stm32f7: fix a race in slave mode with arbitration loss irq Sasha Levin
2019-10-30 15:54 ` [PATCH AUTOSEL 4.19 34/38] i2c: stm32f7: remove warning when compiling with W=1 Sasha Levin
2019-10-30 15:54 ` [PATCH AUTOSEL 4.19 35/38] cifs: Fix cifsInodeInfo lock_sem deadlock when reconnect occurs Sasha Levin
2019-10-30 15:54 ` [PATCH AUTOSEL 4.19 36/38] nbd: protect cmd->status with cmd->lock Sasha Levin
2019-10-30 15:54 ` [PATCH AUTOSEL 4.19 37/38] nbd: handle racing with error'ed out commands Sasha Levin
2019-10-30 15:54 ` [PATCH AUTOSEL 4.19 38/38] nbd: verify socket is supported during setup Sasha Levin
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