diff options
Diffstat (limited to 'usr/src/uts/common/sys/lofi.h')
| -rw-r--r-- | usr/src/uts/common/sys/lofi.h | 26 |
1 files changed, 18 insertions, 8 deletions
diff --git a/usr/src/uts/common/sys/lofi.h b/usr/src/uts/common/sys/lofi.h index a5f0eb1d97..362af884e3 100644 --- a/usr/src/uts/common/sys/lofi.h +++ b/usr/src/uts/common/sys/lofi.h @@ -2,9 +2,8 @@ * CDDL HEADER START * * The contents of this file are subject to the terms of the - * Common Development and Distribution License, Version 1.0 only - * (the "License"). You may not use this file except in compliance - * with the License. + * Common Development and Distribution License (the "License"). + * You may not use this file except in compliance with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. @@ -20,7 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2004 Sun Microsystems, Inc. All rights reserved. + * Copyright 2007 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ @@ -92,13 +91,20 @@ extern "C" { * ioctl(ld, LOFI_GET_MAXMINOR, &li); * maxminor = li.li_minor; * + * If the 'li_force' flag is set for any of the LOFI_UNMAP_* commands, then if + * the device is busy, the underlying vnode will be closed, and any subsequent + * operations will fail. It will behave as if the device had been forcibly + * removed, so the DKIOCSTATE ioctl will return DKIO_DEV_GONE. When the device + * is last closed, it will be torn down. + * * Oh, and last but not least: these ioctls are totally private and only * for use by lofiadm(1M). * */ struct lofi_ioctl { - uint32_t li_minor; + uint32_t li_minor; + boolean_t li_force; char li_filename[MAXPATHLEN + 1]; }; @@ -134,9 +140,13 @@ extern uint32_t lofi_max_files; ((vtype == VREG) || (vtype == VBLK) || (vtype == VCHR)) struct lofi_state { - char *ls_filename; /* filename to open */ - size_t ls_filename_sz; - struct vnode *ls_vp; /* open vnode */ + char *ls_filename; /* filename to open */ + size_t ls_filename_sz; + struct vnode *ls_vp; /* open vnode */ + kmutex_t ls_vp_lock; /* protects ls_vp */ + kcondvar_t ls_vp_cv; /* signal changes to ls_vp */ + uint32_t ls_vp_iocount; /* # pending I/O requests */ + boolean_t ls_vp_closereq; /* force close requested */ u_offset_t ls_vp_size; uint32_t ls_blk_open; uint32_t ls_chr_open; |