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6b4e306aa3
Create files under /proc/<pid>/ns/ to allow controlling the namespaces of a process. This addresses three specific problems that can make namespaces hard to work with. - Namespaces require a dedicated process to pin them in memory. - It is not possible to use a namespace unless you are the child of the original creator. - Namespaces don't have names that userspace can use to talk about them. The namespace files under /proc/<pid>/ns/ can be opened and the file descriptor can be used to talk about a specific namespace, and to keep the specified namespace alive. A namespace can be kept alive by either holding the file descriptor open or bind mounting the file someplace else. aka: mount --bind /proc/self/ns/net /some/filesystem/path mount --bind /proc/self/fd/<N> /some/filesystem/path This allows namespaces to be named with userspace policy. It requires additional support to make use of these filedescriptors and that will be comming in the following patches. Acked-by: Daniel Lezcano <daniel.lezcano@free.fr> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
31 lines
741 B
Makefile
31 lines
741 B
Makefile
#
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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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proc-y := nommu.o task_nommu.o
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proc-$(CONFIG_MMU) := mmu.o task_mmu.o
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proc-y += inode.o root.o base.o generic.o array.o \
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proc_tty.o
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proc-y += cmdline.o
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proc-y += consoles.o
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proc-y += cpuinfo.o
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proc-y += devices.o
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proc-y += interrupts.o
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proc-y += loadavg.o
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proc-y += meminfo.o
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proc-y += stat.o
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proc-y += uptime.o
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proc-y += version.o
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proc-y += softirqs.o
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proc-y += namespaces.o
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proc-$(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_PROC_DEVICETREE) += proc_devtree.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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