linux/include
Steven Rostedt (VMware) da5afbeb17 ftrace: Optimize testing what context current is in
The preempt_count() is not a simple location in memory, it could be part of
per_cpu code or more. Each access to preempt_count(), or one of its accessor
functions (like in_interrupt()) takes several cycles. By reading
preempt_count() once, and then doing tests to find the context against the
value return is slightly faster than using in_nmi() and in_interrupt().

Link: https://lkml.kernel.org/r/20201028115612.780796355@goodmis.org
Link: https://lkml.kernel.org/r/20201106023546.558881845@goodmis.org

Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2020-11-06 08:33:23 -05:00
..
acpi pci-v5.10-changes 2020-10-22 12:41:00 -07:00
asm-generic asm-generic: fixes for v5.10 2020-10-30 13:11:46 -07:00
clocksource
crypto X.509: Fix modular build of public_key_sm2 2020-10-08 16:39:14 +11:00
drm drm: drm_print.h: fix kernel-doc markups 2020-10-27 11:21:39 +01:00
dt-bindings ARM: Devicetree updates 2020-10-24 10:44:18 -07:00
keys
kunit treewide: Convert macro and uses of __section(foo) to __section("foo") 2020-10-25 14:51:49 -07:00
kvm ARM: 2020-10-23 11:17:56 -07:00
linux ftrace: Optimize testing what context current is in 2020-11-06 08:33:23 -05:00
math-emu
media ARM: SoC platform updates 2020-10-24 10:33:08 -07:00
memory
misc
net Fixes for 5.10-rc1 from the networking tree: 2020-10-23 12:05:49 -07:00
pcmcia
ras mm,hwpoison: introduce MF_MSG_UNSPLIT_THP 2020-10-16 11:11:17 -07:00
rdma RDMA: Add rdma_connect_locked() 2020-10-28 09:14:49 -03:00
scsi SCSI misc on 20201023 2020-10-23 16:19:02 -07:00
soc ARM: SoC-related driver updates 2020-10-24 10:39:22 -07:00
sound ASoC: Updates for v5.10 2020-10-12 16:08:57 +02:00
target
trace afs: Fix afs_invalidatepage to adjust the dirty region 2020-10-29 13:53:04 +00:00
uapi Char/Misc fixes/removals for 5.10-rc2 2020-11-01 10:05:16 -08:00
vdso
video
xen xen: branch for v5.10-rc1c 2020-10-25 10:55:35 -07:00