| ext2_alloc.c (249218) | ext2_alloc.c (251612) |
|---|---|
| 1/*- 2 * modified for Lites 1.1 3 * 4 * Aug 1995, Godmar Back (gback@cs.utah.edu) 5 * University of Utah, Department of Computer Science 6 */ 7/*- 8 * Copyright (c) 1982, 1986, 1989, 1993 --- 19 unchanged lines hidden (view full) --- 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * @(#)ffs_alloc.c 8.8 (Berkeley) 2/21/94 | 1/*- 2 * modified for Lites 1.1 3 * 4 * Aug 1995, Godmar Back (gback@cs.utah.edu) 5 * University of Utah, Department of Computer Science 6 */ 7/*- 8 * Copyright (c) 1982, 1986, 1989, 1993 --- 19 unchanged lines hidden (view full) --- 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * @(#)ffs_alloc.c 8.8 (Berkeley) 2/21/94 |
| 36 * $FreeBSD: head/sys/fs/ext2fs/ext2_alloc.c 249218 2013-04-06 22:21:23Z jeff $ | 36 * $FreeBSD: head/sys/fs/ext2fs/ext2_alloc.c 251612 2013-06-11 02:47:07Z pfg $ |
| 37 */ 38 39#include <sys/param.h> 40#include <sys/systm.h> 41#include <sys/conf.h> 42#include <sys/vnode.h> 43#include <sys/stat.h> 44#include <sys/mount.h> --- 13 unchanged lines hidden (view full) --- 58static void ext2_fserr(struct m_ext2fs *, uid_t, char *); 59static u_long ext2_hashalloc(struct inode *, int, long, int, 60 daddr_t (*)(struct inode *, int, daddr_t, 61 int)); 62static daddr_t ext2_nodealloccg(struct inode *, int, daddr_t, int); 63static daddr_t ext2_mapsearch(struct m_ext2fs *, char *, daddr_t); 64 65/* | 37 */ 38 39#include <sys/param.h> 40#include <sys/systm.h> 41#include <sys/conf.h> 42#include <sys/vnode.h> 43#include <sys/stat.h> 44#include <sys/mount.h> --- 13 unchanged lines hidden (view full) --- 58static void ext2_fserr(struct m_ext2fs *, uid_t, char *); 59static u_long ext2_hashalloc(struct inode *, int, long, int, 60 daddr_t (*)(struct inode *, int, daddr_t, 61 int)); 62static daddr_t ext2_nodealloccg(struct inode *, int, daddr_t, int); 63static daddr_t ext2_mapsearch(struct m_ext2fs *, char *, daddr_t); 64 65/* |
| 66 * Allocate a block in the file system. | 66 * Allocate a block in the filesystem. |
| 67 * 68 * A preference may be optionally specified. If a preference is given 69 * the following hierarchy is used to allocate a block: 70 * 1) allocate the requested block. 71 * 2) allocate a rotationally optimal block in the same cylinder. 72 * 3) allocate a block in the same cylinder group. 73 * 4) quadradically rehash into other cylinder groups, until an 74 * available block is located. --- 45 unchanged lines hidden (view full) --- 120 121 ip->i_blocks += btodb(fs->e2fs_bsize); 122 ip->i_flag |= IN_CHANGE | IN_UPDATE; 123 *bnp = bno; 124 return (0); 125 } 126nospace: 127 EXT2_UNLOCK(ump); | 67 * 68 * A preference may be optionally specified. If a preference is given 69 * the following hierarchy is used to allocate a block: 70 * 1) allocate the requested block. 71 * 2) allocate a rotationally optimal block in the same cylinder. 72 * 3) allocate a block in the same cylinder group. 73 * 4) quadradically rehash into other cylinder groups, until an 74 * available block is located. --- 45 unchanged lines hidden (view full) --- 120 121 ip->i_blocks += btodb(fs->e2fs_bsize); 122 ip->i_flag |= IN_CHANGE | IN_UPDATE; 123 *bnp = bno; 124 return (0); 125 } 126nospace: 127 EXT2_UNLOCK(ump); |
| 128 ext2_fserr(fs, cred->cr_uid, "file system full"); 129 uprintf("\n%s: write failed, file system is full\n", fs->e2fs_fsmnt); | 128 ext2_fserr(fs, cred->cr_uid, "filesystem full"); 129 uprintf("\n%s: write failed, filesystem is full\n", fs->e2fs_fsmnt); |
| 130 return (ENOSPC); 131} 132 133/* 134 * Reallocate a sequence of blocks into a contiguous sequence of blocks. 135 * 136 * The vnode and an array of buffer pointers for a range of sequential 137 * logical blocks to be made contiguous is given. The allocator attempts --- 195 unchanged lines hidden (view full) --- 333 if (ssize < len) 334 brelse(ebp); 335 if (sbap != &ip->i_db[0]) 336 brelse(sbp); 337 return (ENOSPC); 338} 339 340/* | 130 return (ENOSPC); 131} 132 133/* 134 * Reallocate a sequence of blocks into a contiguous sequence of blocks. 135 * 136 * The vnode and an array of buffer pointers for a range of sequential 137 * logical blocks to be made contiguous is given. The allocator attempts --- 195 unchanged lines hidden (view full) --- 333 if (ssize < len) 334 brelse(ebp); 335 if (sbap != &ip->i_db[0]) 336 brelse(sbp); 337 return (ENOSPC); 338} 339 340/* |
| 341 * Allocate an inode in the file system. | 341 * Allocate an inode in the filesystem. |
| 342 * 343 */ 344int 345ext2_valloc(struct vnode *pvp, int mode, struct ucred *cred, struct vnode **vpp) 346{ 347 struct timespec ts; 348 struct inode *pip; 349 struct m_ext2fs *fs; --- 728 unchanged lines hidden (view full) --- 1078 panic("ext2_mapsearch: map corrupted"); 1079 /* NOTREACHED */ 1080 } 1081 } 1082 return ((loc - bbp) * NBBY + ffs(~*loc) - 1); 1083} 1084 1085/* | 342 * 343 */ 344int 345ext2_valloc(struct vnode *pvp, int mode, struct ucred *cred, struct vnode **vpp) 346{ 347 struct timespec ts; 348 struct inode *pip; 349 struct m_ext2fs *fs; --- 728 unchanged lines hidden (view full) --- 1078 panic("ext2_mapsearch: map corrupted"); 1079 /* NOTREACHED */ 1080 } 1081 } 1082 return ((loc - bbp) * NBBY + ffs(~*loc) - 1); 1083} 1084 1085/* |
| 1086 * Fserr prints the name of a file system with an error diagnostic. | 1086 * Fserr prints the name of a filesystem with an error diagnostic. |
| 1087 * 1088 * The form of the error message is: 1089 * fs: error message 1090 */ 1091static void 1092ext2_fserr(struct m_ext2fs *fs, uid_t uid, char *cp) 1093{ 1094 --- 17 unchanged lines hidden --- | 1087 * 1088 * The form of the error message is: 1089 * fs: error message 1090 */ 1091static void 1092ext2_fserr(struct m_ext2fs *fs, uid_t uid, char *cp) 1093{ 1094 --- 17 unchanged lines hidden --- |