pseudofs_fileno.c (143841) | pseudofs_fileno.c (168637) |
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1/*- 2 * Copyright (c) 2001 Dag-Erling Co�dan Sm�rgrav 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 13 unchanged lines hidden (view full) --- 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29#include <sys/cdefs.h> | 1/*- 2 * Copyright (c) 2001 Dag-Erling Co�dan Sm�rgrav 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 13 unchanged lines hidden (view full) --- 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29#include <sys/cdefs.h> |
30__FBSDID("$FreeBSD: head/sys/fs/pseudofs/pseudofs_fileno.c 143841 2005-03-19 08:22:36Z phk $"); | 30__FBSDID("$FreeBSD: head/sys/fs/pseudofs/pseudofs_fileno.c 168637 2007-04-11 22:40:57Z des $"); |
31 32#include "opt_pseudofs.h" 33 34#include <sys/param.h> 35#include <sys/kernel.h> 36#include <sys/systm.h> 37#include <sys/limits.h> 38#include <sys/lock.h> 39#include <sys/malloc.h> 40#include <sys/mutex.h> 41#include <sys/sysctl.h> | 31 32#include "opt_pseudofs.h" 33 34#include <sys/param.h> 35#include <sys/kernel.h> 36#include <sys/systm.h> 37#include <sys/limits.h> 38#include <sys/lock.h> 39#include <sys/malloc.h> 40#include <sys/mutex.h> 41#include <sys/sysctl.h> |
42#include <sys/systm.h> |
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42 43#include <fs/pseudofs/pseudofs.h> 44#include <fs/pseudofs/pseudofs_internal.h> 45 46/* 47 * Initialize fileno bitmap 48 */ 49void 50pfs_fileno_init(struct pfs_info *pi) 51{ 52 struct unrhdr *up; 53 54 up = new_unrhdr(3, INT_MAX, &pi->pi_mutex); 55 mtx_lock(&pi->pi_mutex); 56 pi->pi_unrhdr = up; | 43 44#include <fs/pseudofs/pseudofs.h> 45#include <fs/pseudofs/pseudofs_internal.h> 46 47/* 48 * Initialize fileno bitmap 49 */ 50void 51pfs_fileno_init(struct pfs_info *pi) 52{ 53 struct unrhdr *up; 54 55 up = new_unrhdr(3, INT_MAX, &pi->pi_mutex); 56 mtx_lock(&pi->pi_mutex); 57 pi->pi_unrhdr = up; |
57 pi->pi_root->pn_fileno = 2; | |
58 mtx_unlock(&pi->pi_mutex); 59} 60 61/* 62 * Tear down fileno bitmap 63 */ 64void 65pfs_fileno_uninit(struct pfs_info *pi) --- 11 unchanged lines hidden (view full) --- 77} 78 79/* 80 * Allocate a file number 81 */ 82void 83pfs_fileno_alloc(struct pfs_info *pi, struct pfs_node *pn) 84{ | 58 mtx_unlock(&pi->pi_mutex); 59} 60 61/* 62 * Tear down fileno bitmap 63 */ 64void 65pfs_fileno_uninit(struct pfs_info *pi) --- 11 unchanged lines hidden (view full) --- 77} 78 79/* 80 * Allocate a file number 81 */ 82void 83pfs_fileno_alloc(struct pfs_info *pi, struct pfs_node *pn) 84{ |
85 /* pi is not really necessary as it can be derived */ 86 KASSERT(pi == pn->pn_info, ("pn / pi mismatch")); 87 |
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85 /* make sure our parent has a file number */ 86 if (pn->pn_parent && !pn->pn_parent->pn_fileno) 87 pfs_fileno_alloc(pi, pn->pn_parent); 88 89 switch (pn->pn_type) { 90 case pfstype_root: | 88 /* make sure our parent has a file number */ 89 if (pn->pn_parent && !pn->pn_parent->pn_fileno) 90 pfs_fileno_alloc(pi, pn->pn_parent); 91 92 switch (pn->pn_type) { 93 case pfstype_root: |
94 /* root must always be 2 */ 95 pn->pn_fileno = 2; 96 break; |
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91 case pfstype_dir: 92 case pfstype_file: 93 case pfstype_symlink: 94 case pfstype_procdir: 95 pn->pn_fileno = alloc_unr(pi->pi_unrhdr); 96 break; 97 case pfstype_this: 98 KASSERT(pn->pn_parent != NULL, --- 30 unchanged lines hidden (view full) --- 129} 130 131/* 132 * Release a file number 133 */ 134void 135pfs_fileno_free(struct pfs_info *pi, struct pfs_node *pn) 136{ | 97 case pfstype_dir: 98 case pfstype_file: 99 case pfstype_symlink: 100 case pfstype_procdir: 101 pn->pn_fileno = alloc_unr(pi->pi_unrhdr); 102 break; 103 case pfstype_this: 104 KASSERT(pn->pn_parent != NULL, --- 30 unchanged lines hidden (view full) --- 135} 136 137/* 138 * Release a file number 139 */ 140void 141pfs_fileno_free(struct pfs_info *pi, struct pfs_node *pn) 142{ |
143 /* pi is not really necessary as it can be derived */ 144 KASSERT(pi == pn->pn_info, ("pn / pi mismatch")); 145 |
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137 switch (pn->pn_type) { 138 case pfstype_root: | 146 switch (pn->pn_type) { 147 case pfstype_root: |
148 /* not allocated from unrhdr */ 149 return; |
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139 case pfstype_dir: 140 case pfstype_file: 141 case pfstype_symlink: 142 case pfstype_procdir: 143 free_unr(pi->pi_unrhdr, pn->pn_fileno); 144 break; 145 case pfstype_this: 146 case pfstype_parent: 147 /* ignore these, as they don't "own" their file number */ 148 break; 149 case pfstype_none: 150 KASSERT(0, 151 ("pfs_fileno_free() called for pfstype_none node")); 152 break; 153 } 154} | 150 case pfstype_dir: 151 case pfstype_file: 152 case pfstype_symlink: 153 case pfstype_procdir: 154 free_unr(pi->pi_unrhdr, pn->pn_fileno); 155 break; 156 case pfstype_this: 157 case pfstype_parent: 158 /* ignore these, as they don't "own" their file number */ 159 break; 160 case pfstype_none: 161 KASSERT(0, 162 ("pfs_fileno_free() called for pfstype_none node")); 163 break; 164 } 165} |