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https://github.com/checkpoint-restore/criu
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These are needed to compile project on CentOS 6. Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org> Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
41 lines
1.0 KiB
C
41 lines
1.0 KiB
C
#ifndef __CR_CONFIG_BASE_H__
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#define __CR_CONFIG_BASE_H__
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#define PAGE_ALLOC_COSTLY_ORDER 3 /* from the kernel source code */
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struct kernel_pipe_buffer {
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struct page *page;
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unsigned int offset, len;
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const struct pipe_buf_operations *ops;
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unsigned int flags;
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unsigned long private;
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};
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/*
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* The kernel allocates the linear chunk of memory for pipe buffers.
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* Allocation of chunks with size more than PAGE_ALLOC_COSTLY_ORDER
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* fails very often, so we need to restrict the pipe capacity to not
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* allocate big chunks.
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*/
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#define PIPE_MAX_SIZE ((1 << PAGE_ALLOC_COSTLY_ORDER) * PAGE_SIZE / \
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sizeof(struct kernel_pipe_buffer))
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/* The number of pipes for one chunk */
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#define NR_PIPES_PER_CHUNK 8
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/*
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* These things are required to compile on CentOS-6
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*/
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#ifndef F_LINUX_SPECIFIC_BASE
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# define F_LINUX_SPECIFIC_BASE 1024
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#endif
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#ifndef F_SETPIPE_SZ
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# define F_SETPIPE_SZ (F_LINUX_SPECIFIC_BASE + 7)
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#endif
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#ifndef F_GETPIPE_SZ
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# define F_GETPIPE_SZ (F_LINUX_SPECIFIC_BASE + 8)
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#endif
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#endif /* __CR_CONFIG_BASE_H__ */
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