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https://github.com/torvalds/linux
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171cc0d9ee
Reading /proc/interrupts iterates over the interrupt number space one by one and looks up the descriptors one by one. That's just a waste of time. When CONFIG_GENERIC_IRQ_SHOW is enabled this can utilize the maple tree and cache the descriptor pointer efficiently for the sequence file operations. Implement a CONFIG_GENERIC_IRQ_SHOW specific version in the core code and leave the fs/proc/ variant for the legacy architectures which ignore generic code. This reduces the time wasted for looking up the next record significantly. Signed-off-by: Thomas Gleixner <tglx@kernel.org> Tested-by: Michael Kelley <mhklinux@outlook.com> Reviewed-by: Dmitry Ilvokhin <d@ilvokhin.com> Link: https://patch.msgid.link/20260517194932.165280601@kernel.org
39 lines
937 B
Makefile
39 lines
937 B
Makefile
# SPDX-License-Identifier: GPL-2.0
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#
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# Makefile for the Linux proc filesystem routines.
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#
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obj-y += proc.o
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CFLAGS_task_mmu.o += -Wno-override-init
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proc-y := nommu.o task_nommu.o
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proc-$(CONFIG_MMU) := task_mmu.o
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proc-y += inode.o root.o base.o generic.o array.o \
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fd.o
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proc-$(CONFIG_TTY) += proc_tty.o
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proc-y += cmdline.o
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proc-y += consoles.o
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proc-y += cpuinfo.o
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proc-y += devices.o
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ifneq ($(CONFIG_GENERIC_IRQ_SHOW),y)
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proc-y += interrupts.o
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endif
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proc-y += loadavg.o
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proc-y += meminfo.o
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proc-y += stat.o
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proc-y += uptime.o
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proc-y += util.o
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proc-y += version.o
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proc-y += softirqs.o
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proc-y += namespaces.o
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proc-y += self.o
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proc-y += thread_self.o
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proc-$(CONFIG_PROC_SYSCTL) += proc_sysctl.o
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proc-$(CONFIG_NET) += proc_net.o
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proc-$(CONFIG_PROC_KCORE) += kcore.o
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proc-$(CONFIG_PROC_VMCORE) += vmcore.o
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proc-$(CONFIG_PRINTK) += kmsg.o
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proc-$(CONFIG_PROC_PAGE_MONITOR) += page.o
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proc-$(CONFIG_BOOT_CONFIG) += bootconfig.o
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