X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/6601e61aa18bf4f09af135ff61fc7f4771d23b06..4ba76501152d51ccb5647018f3192c6096367d48:/bsd/miscfs/specfs/specdev.h diff --git a/bsd/miscfs/specfs/specdev.h b/bsd/miscfs/specfs/specdev.h index 61c340ac1..3a4b2aa5c 100644 --- a/bsd/miscfs/specfs/specdev.h +++ b/bsd/miscfs/specfs/specdev.h @@ -1,23 +1,29 @@ /* * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved. * - * @APPLE_LICENSE_HEADER_START@ - * - * The contents of this file constitute Original Code as defined in and - * are subject to the Apple Public Source License Version 1.1 (the - * "License"). You may not use this file except in compliance with the - * License. Please obtain a copy of the License at - * http://www.apple.com/publicsource and read it before using this file. - * - * This Original Code and all software distributed under the License are - * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER + * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ + * + * This file contains Original Code and/or Modifications of Original Code + * as defined in and that are subject to the Apple Public Source License + * Version 2.0 (the 'License'). You may not use this file except in + * compliance with the License. The rights granted to you under the License + * may not be used to create, or enable the creation or redistribution of, + * unlawful or unlicensed copies of an Apple operating system, or to + * circumvent, violate, or enable the circumvention or violation of, any + * terms of an Apple operating system software license agreement. + * + * Please obtain a copy of the License at + * http://www.opensource.apple.com/apsl/ and read it before using this file. + * + * The Original Code and all software distributed under the License are + * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the - * License for the specific language governing rights and limitations - * under the License. - * - * @APPLE_LICENSE_HEADER_END@ + * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. + * Please see the License for the specific language governing rights and + * limitations under the License. + * + * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */ /* * Copyright (c) 1995, 1998 Apple Computer, Inc. All Rights Reserved. @@ -69,13 +75,20 @@ * in vgone. */ struct specinfo { - struct vnode **si_hashchain; - struct vnode *si_specnext; - long si_flags; - dev_t si_rdev; - daddr_t si_size; /* device block size in bytes */ - daddr64_t si_lastr; /* last read blkno (read-ahead) */ - u_int64_t si_devsize; /* actual device size in bytes */ + struct vnode **si_hashchain; + struct vnode *si_specnext; + long si_flags; + dev_t si_rdev; + int32_t si_opencount; + daddr_t si_size; /* device block size in bytes */ + daddr64_t si_lastr; /* last read blkno (read-ahead) */ + u_int64_t si_devsize; /* actual device size in bytes */ + + u_int8_t si_initted; + u_int8_t si_throttleable; + u_int16_t si_isssd; + u_int32_t si_devbsdunit; + u_int64_t si_throttle_mask; }; /* * Exported shorthand @@ -91,16 +104,17 @@ struct specinfo { /* * Flags for specinfo */ -#define SI_MOUNTEDON 0x0001 /* block special device is mounted on */ +#define SI_MOUNTEDON 0x0001 /* block special device is mounted on */ +#define SI_ALIASED 0x0002 /* multiple active vnodes refer to this device */ /* * Special device management */ -#define SPECHSZ 64 -#if ((SPECHSZ&(SPECHSZ-1)) == 0) -#define SPECHASH(rdev) (((rdev>>5)+(rdev))&(SPECHSZ-1)) +#define SPECHSZ 64 +#if ((SPECHSZ & (SPECHSZ - 1)) == 0) +#define SPECHASH(rdev) (((rdev>>21)+(rdev))&(SPECHSZ-1)) #else -#define SPECHASH(rdev) (((unsigned)((rdev>>5)+(rdev)))%SPECHSZ) +#define SPECHASH(rdev) (((unsigned)((rdev>>21)+(rdev)))%SPECHSZ) #endif extern struct vnode *speclisth[SPECHSZ]; @@ -108,32 +122,39 @@ extern struct vnode *speclisth[SPECHSZ]; /* * Prototypes for special file operations on vnodes. */ -extern int (**spec_vnodeop_p)(void *); -struct nameidata; -struct componentname; -struct ucred; -struct flock; -struct buf; -struct uio; +extern int(**spec_vnodeop_p)(void *); +struct nameidata; +struct componentname; +struct flock; +struct buf; +struct uio; + +__BEGIN_DECLS +#ifdef BSD_KERNEL_PRIVATE +int spec_blktooff(struct vnop_blktooff_args *); +int spec_offtoblk(struct vnop_offtoblk_args *); +int spec_fsync_internal(vnode_t, int, vfs_context_t); +int spec_blockmap(struct vnop_blockmap_args *); +int spec_kqfilter(vnode_t vp, struct knote *kn, struct kevent_qos_s *kev); +#endif /* BSD_KERNEL_PRIVATE */ -int spec_ebadf(void *); +int spec_ebadf(void *); -int spec_lookup (struct vnop_lookup_args *); +int spec_lookup(struct vnop_lookup_args *); #define spec_create (int (*) (struct vnop_access_args *))err_create #define spec_mknod (int (*) (struct vnop_access_args *))err_mknod -int spec_open (struct vnop_open_args *); -int spec_close (struct vnop_close_args *); +int spec_open(struct vnop_open_args *); +int spec_close(struct vnop_close_args *); #define spec_access (int (*) (struct vnop_access_args *))spec_ebadf #define spec_getattr (int (*) (struct vnop_getattr_args *))spec_ebadf #define spec_setattr (int (*) (struct vnop_setattr_args *))spec_ebadf -int spec_read (struct vnop_read_args *); -int spec_write (struct vnop_write_args *); -int spec_ioctl (struct vnop_ioctl_args *); -int spec_select (struct vnop_select_args *); +int spec_read(struct vnop_read_args *); +int spec_write(struct vnop_write_args *); +int spec_ioctl(struct vnop_ioctl_args *); +int spec_select(struct vnop_select_args *); #define spec_revoke (int (*) (struct vnop_access_args *))nop_revoke #define spec_mmap (int (*) (struct vnop_access_args *))err_mmap -int spec_fsync (struct vnop_fsync_args *); -int spec_fsync_internal (vnode_t, int, vfs_context_t); +int spec_fsync(struct vnop_fsync_args *); #define spec_remove (int (*) (struct vnop_access_args *))err_remove #define spec_link (int (*) (struct vnop_access_args *))err_link #define spec_rename (int (*) (struct vnop_access_args *))err_rename @@ -146,18 +167,15 @@ int spec_fsync_internal (vnode_t, int, vfs_context_t); #define spec_reclaim (int (*) (struct vnop_access_args *))nop_reclaim #define spec_lock (int (*) (struct vnop_access_args *))nop_lock #define spec_unlock (int (*)(struct vnop_access_args *))nop_unlock -int spec_strategy (struct vnop_strategy_args *); +int spec_strategy(struct vnop_strategy_args *); #define spec_islocked (int (*) (struct vnop_access_args *))nop_islocked -int spec_pathconf (struct vnop_pathconf_args *); +int spec_pathconf(struct vnop_pathconf_args *); #define spec_advlock (int (*) (struct vnop_access_args *))err_advlock #define spec_blkatoff (int (*) (struct vnop_access_args *))err_blkatoff #define spec_valloc (int (*) (struct vnop_access_args *))err_valloc #define spec_vfree (int (*) (struct vnop_access_args *))err_vfree #define spec_bwrite (int (*) (struct vnop_bwrite_args *))nop_bwrite -int spec_devblocksize (struct vnop_devblocksize_args *); -int spec_blktooff (struct vnop_blktooff_args *); -int spec_offtoblk (struct vnop_offtoblk_args *); -int spec_blockmap (struct vnop_blockmap_args *); +__END_DECLS #endif /* __APPLE_API_PRIVATE */ #endif /* _MISCFS_SPECFS_SPECDEV_H_ */