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ac6424b981
Rename: wait_queue_t => wait_queue_entry_t 'wait_queue_t' was always a slight misnomer: its name implies that it's a "queue", but in reality it's a queue *entry*. The 'real' queue is the wait queue head, which had to carry the name. Start sorting this out by renaming it to 'wait_queue_entry_t'. This also allows the real structure name 'struct __wait_queue' to lose its double underscore and become 'struct wait_queue_entry', which is the more canonical nomenclature for such data types. Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
83 lines
2.6 KiB
C
83 lines
2.6 KiB
C
/*
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* Copyright 1997 Transmeta Corporation - All Rights Reserved
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*
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* This file is part of the Linux kernel and is made available under
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* the terms of the GNU General Public License, version 2, or at your
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* option, any later version, incorporated herein by reference.
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*
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* ----------------------------------------------------------------------- */
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#ifndef _UAPI_LINUX_AUTO_FS_H
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#define _UAPI_LINUX_AUTO_FS_H
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#include <linux/types.h>
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#include <linux/limits.h>
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#ifndef __KERNEL__
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#include <sys/ioctl.h>
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#endif /* __KERNEL__ */
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/* This file describes autofs v3 */
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#define AUTOFS_PROTO_VERSION 3
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/* Range of protocol versions defined */
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#define AUTOFS_MAX_PROTO_VERSION AUTOFS_PROTO_VERSION
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#define AUTOFS_MIN_PROTO_VERSION AUTOFS_PROTO_VERSION
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/*
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* The wait_queue_entry_token (autofs_wqt_t) is part of a structure which is passed
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* back to the kernel via ioctl from userspace. On architectures where 32- and
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* 64-bit userspace binaries can be executed it's important that the size of
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* autofs_wqt_t stays constant between 32- and 64-bit Linux kernels so that we
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* do not break the binary ABI interface by changing the structure size.
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*/
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#if defined(__ia64__) || defined(__alpha__) /* pure 64bit architectures */
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typedef unsigned long autofs_wqt_t;
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#else
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typedef unsigned int autofs_wqt_t;
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#endif
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/* Packet types */
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#define autofs_ptype_missing 0 /* Missing entry (mount request) */
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#define autofs_ptype_expire 1 /* Expire entry (umount request) */
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struct autofs_packet_hdr {
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int proto_version; /* Protocol version */
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int type; /* Type of packet */
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};
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struct autofs_packet_missing {
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struct autofs_packet_hdr hdr;
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autofs_wqt_t wait_queue_entry_token;
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int len;
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char name[NAME_MAX+1];
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};
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/* v3 expire (via ioctl) */
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struct autofs_packet_expire {
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struct autofs_packet_hdr hdr;
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int len;
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char name[NAME_MAX+1];
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};
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#define AUTOFS_IOCTL 0x93
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enum {
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AUTOFS_IOC_READY_CMD = 0x60,
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AUTOFS_IOC_FAIL_CMD,
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AUTOFS_IOC_CATATONIC_CMD,
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AUTOFS_IOC_PROTOVER_CMD,
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AUTOFS_IOC_SETTIMEOUT_CMD,
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AUTOFS_IOC_EXPIRE_CMD,
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};
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#define AUTOFS_IOC_READY _IO(AUTOFS_IOCTL, AUTOFS_IOC_READY_CMD)
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#define AUTOFS_IOC_FAIL _IO(AUTOFS_IOCTL, AUTOFS_IOC_FAIL_CMD)
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#define AUTOFS_IOC_CATATONIC _IO(AUTOFS_IOCTL, AUTOFS_IOC_CATATONIC_CMD)
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#define AUTOFS_IOC_PROTOVER _IOR(AUTOFS_IOCTL, AUTOFS_IOC_PROTOVER_CMD, int)
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#define AUTOFS_IOC_SETTIMEOUT32 _IOWR(AUTOFS_IOCTL, AUTOFS_IOC_SETTIMEOUT_CMD, compat_ulong_t)
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#define AUTOFS_IOC_SETTIMEOUT _IOWR(AUTOFS_IOCTL, AUTOFS_IOC_SETTIMEOUT_CMD, unsigned long)
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#define AUTOFS_IOC_EXPIRE _IOR(AUTOFS_IOCTL, AUTOFS_IOC_EXPIRE_CMD, struct autofs_packet_expire)
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#endif /* _UAPI_LINUX_AUTO_FS_H */
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