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commit 9aee5f8a7e30330d0a8f4c626dc924ca5590aba5 upstream An upcoming patch will extend KVM's L1TF mitigation in conditional mode to also cover interrupts after VMEXITs. For tracking those, stores to a new per-cpu flag from interrupt handlers will become necessary. In order to improve cache locality, this new flag will be added to x86's irq_cpustat_t. Make some space available there by shrinking the ->softirq_pending bitfield from 32 to 16 bits: the number of bits actually used is only NR_SOFTIRQS, i.e. 10. Suggested-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Nicolai Stange <nstange@suse.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. 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.