projects / mirror_spl-debian.git / blame
| Commit | Line | Data |
|---|---|---|
| 716154c5 BB |
1 | /*****************************************************************************\ |
| 2 | * Copyright (C) 2007-2010 Lawrence Livermore National Security, LLC. | |
| 3 | * Copyright (C) 2007 The Regents of the University of California. | |
| 4 | * Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER). | |
| 5 | * Written by Brian Behlendorf <behlendorf1@llnl.gov>. | |
| 715f6251 | 6 | * UCRL-CODE-235197 |
| 7 | * | |
| 716154c5 | 8 | * This file is part of the SPL, Solaris Porting Layer. |
| d956cfac | 9 | * For details, see <http://zfsonlinux.org/>. |
| 716154c5 BB |
10 | * |
| 11 | * The SPL is free software; you can redistribute it and/or modify it | |
| 12 | * under the terms of the GNU General Public License as published by the | |
| 13 | * Free Software Foundation; either version 2 of the License, or (at your | |
| 14 | * option) any later version. | |
| 715f6251 | 15 | * |
| 716154c5 | 16 | * The SPL is distributed in the hope that it will be useful, but WITHOUT |
| 715f6251 | 17 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 18 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 19 | * for more details. | |
| 20 | * | |
| 21 | * You should have received a copy of the GNU General Public License along | |
| 716154c5 BB |
22 | * with the SPL. If not, see <http://www.gnu.org/licenses/>. |
| 23 | ***************************************************************************** | |
| 24 | * Solaris Porting Layer (SPL) Kobj Implementation. | |
| 25 | \*****************************************************************************/ | |
| 715f6251 | 26 | |
| 9490c148 | 27 | #include <sys/kobj.h> |
| 55abb092 | 28 | #include <spl-debug.h> |
| 9490c148 | 29 | |
| b17edc10 BB |
30 | #ifdef SS_DEBUG_SUBSYS |
| 31 | #undef SS_DEBUG_SUBSYS | |
| 937879f1 | 32 | #endif |
| 33 | ||
| b17edc10 | 34 | #define SS_DEBUG_SUBSYS SS_KOBJ |
| 937879f1 | 35 | |
| 9490c148 | 36 | struct _buf * |
| 37 | kobj_open_file(const char *name) | |
| 38 | { | |
| 39 | struct _buf *file; | |
| 4b171585 | 40 | vnode_t *vp; |
| 41 | int rc; | |
| b17edc10 | 42 | SENTRY; |
| 9490c148 | 43 | |
| 3bc9d50e | 44 | file = kmalloc(sizeof(_buf_t), GFP_KERNEL); |
| 45 | if (file == NULL) | |
| b17edc10 | 46 | SRETURN((_buf_t *)-1UL); |
| 9490c148 | 47 | |
| 3bc9d50e | 48 | if ((rc = vn_open(name, UIO_SYSSPACE, FREAD, 0644, &vp, 0, 0))) { |
| 49 | kfree(file); | |
| b17edc10 | 50 | SRETURN((_buf_t *)-1UL); |
| 3bc9d50e | 51 | } |
| 52 | ||
| 4b171585 | 53 | file->vp = vp; |
| 9490c148 | 54 | |
| b17edc10 | 55 | SRETURN(file); |
| 9490c148 | 56 | } /* kobj_open_file() */ |
| 57 | EXPORT_SYMBOL(kobj_open_file); | |
| 58 | ||
| 59 | void | |
| 60 | kobj_close_file(struct _buf *file) | |
| 61 | { | |
| b17edc10 | 62 | SENTRY; |
| 4b171585 | 63 | VOP_CLOSE(file->vp, 0, 0, 0, 0, 0); |
| 4b171585 | 64 | kfree(file); |
| b17edc10 | 65 | SEXIT; |
| 9490c148 | 66 | } /* kobj_close_file() */ |
| 67 | EXPORT_SYMBOL(kobj_close_file); | |
| 68 | ||
| 69 | int | |
| 4b171585 | 70 | kobj_read_file(struct _buf *file, char *buf, ssize_t size, offset_t off) |
| 9490c148 | 71 | { |
| b17edc10 BB |
72 | SENTRY; |
| 73 | SRETURN(vn_rdwr(UIO_READ, file->vp, buf, size, off, | |
| 937879f1 | 74 | UIO_SYSSPACE, 0, RLIM64_INFINITY, 0, NULL)); |
| 9490c148 | 75 | } /* kobj_read_file() */ |
| 76 | EXPORT_SYMBOL(kobj_read_file); | |
| 77 | ||
| 78 | int | |
| 79 | kobj_get_filesize(struct _buf *file, uint64_t *size) | |
| 80 | { | |
| 4b171585 | 81 | vattr_t vap; |
| 9490c148 | 82 | int rc; |
| b17edc10 | 83 | SENTRY; |
| 9490c148 | 84 | |
| 4b171585 | 85 | rc = VOP_GETATTR(file->vp, &vap, 0, 0, NULL); |
| 9490c148 | 86 | if (rc) |
| b17edc10 | 87 | SRETURN(rc); |
| 9490c148 | 88 | |
| 4b171585 | 89 | *size = vap.va_size; |
| 90 | ||
| b17edc10 | 91 | SRETURN(rc); |
| 9490c148 | 92 | } /* kobj_get_filesize() */ |
| 93 | EXPORT_SYMBOL(kobj_get_filesize); |