8a1ab3155c
Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Michael Kerrisk <mtk.manpages@gmail.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Dave Jones <davej@redhat.com>
35 lines
936 B
C
35 lines
936 B
C
#ifndef __ASM_GENERIC_IPCBUF_H
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#define __ASM_GENERIC_IPCBUF_H
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/*
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* The generic ipc64_perm structure:
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* Note extra padding because this structure is passed back and forth
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* between kernel and user space.
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*
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* ipc64_perm was originally meant to be architecture specific, but
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* everyone just ended up making identical copies without specific
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* optimizations, so we may just as well all use the same one.
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*
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* Pad space is left for:
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* - 32-bit mode_t on architectures that only had 16 bit
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* - 32-bit seq
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* - 2 miscellaneous 32-bit values
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*/
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struct ipc64_perm {
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__kernel_key_t key;
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__kernel_uid32_t uid;
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__kernel_gid32_t gid;
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__kernel_uid32_t cuid;
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__kernel_gid32_t cgid;
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__kernel_mode_t mode;
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/* pad if mode_t is u16: */
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unsigned char __pad1[4 - sizeof(__kernel_mode_t)];
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unsigned short seq;
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unsigned short __pad2;
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unsigned long __unused1;
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unsigned long __unused2;
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};
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#endif /* __ASM_GENERIC_IPCBUF_H */
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