Guilherme G. Piccoli ede2512937 misc/pvpanic: Convert regular spinlock into trylock on panic path ... [ Upstream commit e918c10265 ] The pvpanic driver relies on panic notifiers to execute a callback on panic event. Such function is executed in atomic context - the panic function disables local IRQs, preemption and all other CPUs that aren't running the panic code. With that said, it's dangerous to use regular spinlocks in such path, as introduced by commit b3c0f87746 ("misc/pvpanic: probe multiple instances"). This patch fixes that by replacing regular spinlocks with the trylock safer approach. It also fixes an old comment (about a long gone framebuffer code) and the notifier priority - we should execute hypervisor notifiers early, deferring this way the panic action to the hypervisor, as expected by the users that are setting up pvpanic. Fixes: b3c0f87746 ("misc/pvpanic: probe multiple instances") Cc: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Cc: Mihai Carabas <mihai.carabas@oracle.com> Cc: Shile Zhang <shile.zhang@linux.alibaba.com> Cc: Wang ShaoBo <bobo.shaobowang@huawei.com> Cc: zhenwei pi <pizhenwei@bytedance.com> Signed-off-by: Guilherme G. Piccoli <gpiccoli@igalia.com> Link: https://lore.kernel.org/r/20220427224924.592546-6-gpiccoli@igalia.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2022-06-14 18:36:06 +02:00
..
altera-stapl
bcm-vk	misc: bcm-vk: fix tty registration race	2021-09-21 16:17:15 +02:00
c2port
cardreader	misc: alcor_pci: Fix an error handling path	2022-04-08 14:23:44 +02:00
cb710	cb710: avoid NULL pointer subtraction	2021-10-05 15:50:05 +02:00
cxl
echo
eeprom	eeprom: at25: Use DMA safe buffers	2022-05-09 09:14:44 +02:00
genwqe	misc: genwqe: Fixes DMA mask setting	2021-09-14 10:45:41 +02:00
habanalabs	habanalabs: fix possible memory leak in MMU DR fini	2022-04-13 20:59:12 +02:00
ibmasm
lis3lv02d
lkdtm	lkdtm/bugs: Don't expect thread termination without CONFIG_UBSAN_TRAP	2022-06-14 18:36:03 +02:00
mei	mei: avoid iterator usage outside of list_for_each_entry	2022-04-08 14:22:49 +02:00
ocxl	misc: ocxl: fix possible double free in ocxl_file_register_afu	2022-06-09 10:23:06 +02:00
pvpanic	misc/pvpanic: Convert regular spinlock into trylock on panic path	2022-06-14 18:36:06 +02:00
sgi-gru
sgi-xp
ti-st
uacce
vmw_vmci
ad525x_dpot-i2c.c
ad525x_dpot-spi.c
ad525x_dpot.c
ad525x_dpot.h
apds990x.c
apds9802als.c
atmel-ssc.c
bh1770glc.c
cs5535-mfgpt.c
ds1682.c
dummy-irq.c
dw-xdata-pcie.c
enclosure.c
fastrpc.c	misc: fastrpc: fix an incorrect NULL check on list iterator	2022-06-14 18:36:04 +02:00
gehc-achc.c	misc: gehc: Add SPI ID table	2021-10-05 15:47:18 +02:00
hi6421v600-irq.c
hisi_hikey_usb.c
hmc6352.c
hpilo.c
hpilo.h
ibmvmc.c
ibmvmc.h
ics932s401.c
isl29003.c
isl29020.c
Kconfig	misc: HI6421V600_IRQ should depend on HAS_IOMEM	2021-10-05 16:07:56 +02:00
kgdbts.c	kgdbts: fix return value of __setup handler	2022-04-08 14:23:50 +02:00
lattice-ecp3-config.c	misc: lattice-ecp3-config: Fix task hung when firmware load failed	2022-01-27 11:04:17 +01:00
Makefile	IIO / Staging driver update for 5.15-rc1	2021-09-01 09:45:57 -07:00
pch_phub.c
pci_endpoint_test.c	pci-v5.15-changes	2021-09-07 19:13:42 -07:00
phantom.c
qcom-coincell.c
sram-exec.c
sram.c
sram.h
tifm_7xx1.c
tifm_core.c
tsl2550.c
vmw_balloon.c
xilinx_sdfec.c