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602447f954
Nadav reported that since the this_cpu_*() ops got asm-volatile constraints on, code generation suffered for do_IRQ(), but since this is all with IRQs disabled we can use __this_cpu_*(). smp_x86_platform_ipi 234 222 -12,+0 smp_kvm_posted_intr_ipi 74 66 -8,+0 smp_kvm_posted_intr_wakeup_ipi 86 78 -8,+0 smp_apic_timer_interrupt 292 284 -8,+0 smp_kvm_posted_intr_nested_ipi 74 66 -8,+0 do_IRQ 195 187 -8,+0 Reported-by: Nadav Amit <nadav.amit@gmail.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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| certs | ||
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| Documentation | ||
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| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
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| .clang-format | ||
| .cocciconfig | ||
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| README | ||
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.