S: Orphan
F: drivers/usb/phy/phy-fsl-usb*
-FREEVXFS FILESYSTEM
-M: Christoph Hellwig <hch@infradead.org>
-S: Maintained
-W: ftp://ftp.openlinux.org/pub/people/hch/vxfs
-F: fs/freevxfs/
-
FREEZER
M: "Rafael J. Wysocki" <rafael@kernel.org>
R: Pavel Machek <pavel@kernel.org>
source "fs/ubifs/Kconfig"
source "fs/cramfs/Kconfig"
source "fs/squashfs/Kconfig"
-source "fs/freevxfs/Kconfig"
source "fs/minix/Kconfig"
source "fs/omfs/Kconfig"
source "fs/hpfs/Kconfig"
obj-$(CONFIG_HFSPLUS_FS) += hfsplus/ # Before hfs to find wrapped HFS+
obj-$(CONFIG_HFS_FS) += hfs/
obj-$(CONFIG_ECRYPT_FS) += ecryptfs/
-obj-$(CONFIG_VXFS_FS) += freevxfs/
obj-$(CONFIG_NFS_FS) += nfs/
obj-$(CONFIG_EXPORTFS) += exportfs/
obj-$(CONFIG_NFSD) += nfsd/
+++ /dev/null
-# SPDX-License-Identifier: GPL-2.0-only
-config VXFS_FS
- tristate "FreeVxFS file system support (VERITAS VxFS(TM) compatible)"
- depends on BLOCK
- select BUFFER_HEAD
- help
- FreeVxFS is a file system driver that support the VERITAS VxFS(TM)
- file system format. VERITAS VxFS(TM) is the standard file system
- of SCO UnixWare (and possibly others) and optionally available
- for Sunsoft Solaris, HP-UX and many other operating systems. However
- these particular OS implementations of vxfs may differ in on-disk
- data endianness and/or superblock offset. The vxfs module has been
- tested with SCO UnixWare and HP-UX B.10.20 (pa-risc 1.1 arch.)
- Currently only readonly access is supported and VxFX versions
- 2, 3 and 4. Tests were performed with HP-UX VxFS version 3.
-
- NOTE: the file system type as used by mount(1), mount(2) and
- fstab(5) is 'vxfs' as it describes the file system format, not
- the actual driver.
-
- There is a userspace utility for HP-UX logical volumes which makes
- creating HP-UX logical volumes easy from HP-UX disk block device file
- or regular file with image of the disk. See:
- https://sourceforge.net/projects/linux-vxfs/
-
- To compile this as a module, choose M here: the module will be
- called freevxfs. If unsure, say N.
+++ /dev/null
-# SPDX-License-Identifier: GPL-2.0-only
-#
-# VxFS Makefile
-#
-
-obj-$(CONFIG_VXFS_FS) += freevxfs.o
-
-freevxfs-objs := vxfs_bmap.o vxfs_fshead.o vxfs_immed.o vxfs_inode.o \
- vxfs_lookup.o vxfs_olt.o vxfs_subr.o vxfs_super.o
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Copyright (c) 2000-2001 Christoph Hellwig.
- * Copyright (c) 2016 Krzysztof Blaszkowski
- */
-#ifndef _VXFS_SUPER_H_
-#define _VXFS_SUPER_H_
-
-/*
- * Veritas filesystem driver - superblock structure.
- *
- * This file contains the definition of the disk and core
- * superblocks of the Veritas Filesystem.
- */
-#include <linux/types.h>
-
-/*
- * Superblock magic number (vxfs_super->vs_magic).
- */
-#define VXFS_SUPER_MAGIC 0xa501FCF5
-
-/*
- * The root inode.
- */
-#define VXFS_ROOT_INO 2
-
-/*
- * Num of entries in free extent array
- */
-#define VXFS_NEFREE 32
-
-enum vxfs_byte_order {
- VXFS_BO_LE,
- VXFS_BO_BE,
-};
-
-typedef __u16 __bitwise __fs16;
-typedef __u32 __bitwise __fs32;
-typedef __u64 __bitwise __fs64;
-
-/*
- * VxFS superblock (disk).
- */
-struct vxfs_sb {
- /*
- * Readonly fields for the version 1 superblock.
- *
- * Lots of this fields are no more used by version 2
- * and never filesystems.
- */
- __fs32 vs_magic; /* Magic number */
- __fs32 vs_version; /* VxFS version */
- __fs32 vs_ctime; /* create time - secs */
- __fs32 vs_cutime; /* create time - usecs */
- __fs32 __unused1; /* unused */
- __fs32 __unused2; /* unused */
- __fs32 vs_old_logstart; /* obsolete */
- __fs32 vs_old_logend; /* obsolete */
- __fs32 vs_bsize; /* block size */
- __fs32 vs_size; /* number of blocks */
- __fs32 vs_dsize; /* number of data blocks */
- __fs32 vs_old_ninode; /* obsolete */
- __fs32 vs_old_nau; /* obsolete */
- __fs32 __unused3; /* unused */
- __fs32 vs_old_defiextsize; /* obsolete */
- __fs32 vs_old_ilbsize; /* obsolete */
- __fs32 vs_immedlen; /* size of immediate data area */
- __fs32 vs_ndaddr; /* number of direct extentes */
- __fs32 vs_firstau; /* address of first AU */
- __fs32 vs_emap; /* offset of extent map in AU */
- __fs32 vs_imap; /* offset of inode map in AU */
- __fs32 vs_iextop; /* offset of ExtOp. map in AU */
- __fs32 vs_istart; /* offset of inode list in AU */
- __fs32 vs_bstart; /* offset of fdblock in AU */
- __fs32 vs_femap; /* aufirst + emap */
- __fs32 vs_fimap; /* aufirst + imap */
- __fs32 vs_fiextop; /* aufirst + iextop */
- __fs32 vs_fistart; /* aufirst + istart */
- __fs32 vs_fbstart; /* aufirst + bstart */
- __fs32 vs_nindir; /* number of entries in indir */
- __fs32 vs_aulen; /* length of AU in blocks */
- __fs32 vs_auimlen; /* length of imap in blocks */
- __fs32 vs_auemlen; /* length of emap in blocks */
- __fs32 vs_auilen; /* length of ilist in blocks */
- __fs32 vs_aupad; /* length of pad in blocks */
- __fs32 vs_aublocks; /* data blocks in AU */
- __fs32 vs_maxtier; /* log base 2 of aublocks */
- __fs32 vs_inopb; /* number of inodes per blk */
- __fs32 vs_old_inopau; /* obsolete */
- __fs32 vs_old_inopilb; /* obsolete */
- __fs32 vs_old_ndiripau; /* obsolete */
- __fs32 vs_iaddrlen; /* size of indirect addr ext. */
- __fs32 vs_bshift; /* log base 2 of bsize */
- __fs32 vs_inoshift; /* log base 2 of inobp */
- __fs32 vs_bmask; /* ~( bsize - 1 ) */
- __fs32 vs_boffmask; /* bsize - 1 */
- __fs32 vs_old_inomask; /* old_inopilb - 1 */
- __fs32 vs_checksum; /* checksum of V1 data */
-
- /*
- * Version 1, writable
- */
- __fs32 vs_free; /* number of free blocks */
- __fs32 vs_ifree; /* number of free inodes */
- __fs32 vs_efree[VXFS_NEFREE]; /* number of free extents by size */
- __fs32 vs_flags; /* flags ?!? */
- __u8 vs_mod; /* filesystem has been changed */
- __u8 vs_clean; /* clean FS */
- __fs16 __unused4; /* unused */
- __fs32 vs_firstlogid; /* mount time log ID */
- __fs32 vs_wtime; /* last time written - sec */
- __fs32 vs_wutime; /* last time written - usec */
- __u8 vs_fname[6]; /* FS name */
- __u8 vs_fpack[6]; /* FS pack name */
- __fs32 vs_logversion; /* log format version */
- __u32 __unused5; /* unused */
-
- /*
- * Version 2, Read-only
- */
- __fs32 vs_oltext[2]; /* OLT extent and replica */
- __fs32 vs_oltsize; /* OLT extent size */
- __fs32 vs_iauimlen; /* size of inode map */
- __fs32 vs_iausize; /* size of IAU in blocks */
- __fs32 vs_dinosize; /* size of inode in bytes */
- __fs32 vs_old_dniaddr; /* indir levels per inode */
- __fs32 vs_checksum2; /* checksum of V2 RO */
-
- /*
- * Actually much more...
- */
-};
-
-
-/*
- * In core superblock filesystem private data for VxFS.
- */
-struct vxfs_sb_info {
- struct vxfs_sb *vsi_raw; /* raw (on disk) superblock */
- struct buffer_head *vsi_bp; /* buffer for raw superblock*/
- struct inode *vsi_fship; /* fileset header inode */
- struct inode *vsi_ilist; /* inode list inode */
- struct inode *vsi_stilist; /* structural inode list inode */
- u_long vsi_iext; /* initial inode list */
- ino_t vsi_fshino; /* fileset header inode */
- daddr_t vsi_oltext; /* OLT extent */
- daddr_t vsi_oltsize; /* OLT size */
- enum vxfs_byte_order byte_order;
-};
-
-static inline u16 fs16_to_cpu(struct vxfs_sb_info *sbi, __fs16 a)
-{
- if (sbi->byte_order == VXFS_BO_BE)
- return be16_to_cpu((__force __be16)a);
- else
- return le16_to_cpu((__force __le16)a);
-}
-
-static inline u32 fs32_to_cpu(struct vxfs_sb_info *sbi, __fs32 a)
-{
- if (sbi->byte_order == VXFS_BO_BE)
- return be32_to_cpu((__force __be32)a);
- else
- return le32_to_cpu((__force __le32)a);
-}
-
-static inline u64 fs64_to_cpu(struct vxfs_sb_info *sbi, __fs64 a)
-{
- if (sbi->byte_order == VXFS_BO_BE)
- return be64_to_cpu((__force __be64)a);
- else
- return le64_to_cpu((__force __le64)a);
-}
-
-/*
- * File modes. File types above 0xf000 are vxfs internal only, they should
- * not be passed back to higher levels of the system. vxfs file types must
- * never have one of the regular file type bits set.
- */
-enum vxfs_mode {
- VXFS_ISUID = 0x00000800, /* setuid */
- VXFS_ISGID = 0x00000400, /* setgid */
- VXFS_ISVTX = 0x00000200, /* sticky bit */
- VXFS_IREAD = 0x00000100, /* read */
- VXFS_IWRITE = 0x00000080, /* write */
- VXFS_IEXEC = 0x00000040, /* exec */
-
- VXFS_IFIFO = 0x00001000, /* Named pipe */
- VXFS_IFCHR = 0x00002000, /* Character device */
- VXFS_IFDIR = 0x00004000, /* Directory */
- VXFS_IFNAM = 0x00005000, /* Xenix device ?? */
- VXFS_IFBLK = 0x00006000, /* Block device */
- VXFS_IFREG = 0x00008000, /* Regular file */
- VXFS_IFCMP = 0x00009000, /* Compressed file ?!? */
- VXFS_IFLNK = 0x0000a000, /* Symlink */
- VXFS_IFSOC = 0x0000c000, /* Socket */
-
- /* VxFS internal */
- VXFS_IFFSH = 0x10000000, /* Fileset header */
- VXFS_IFILT = 0x20000000, /* Inode list */
- VXFS_IFIAU = 0x30000000, /* Inode allocation unit */
- VXFS_IFCUT = 0x40000000, /* Current usage table */
- VXFS_IFATT = 0x50000000, /* Attr. inode */
- VXFS_IFLCT = 0x60000000, /* Link count table */
- VXFS_IFIAT = 0x70000000, /* Indirect attribute file */
- VXFS_IFEMR = 0x80000000, /* Extent map reorg file */
- VXFS_IFQUO = 0x90000000, /* BSD quota file */
- VXFS_IFPTI = 0xa0000000, /* "Pass through" inode */
- VXFS_IFLAB = 0x11000000, /* Device label file */
- VXFS_IFOLT = 0x12000000, /* OLT file */
- VXFS_IFLOG = 0x13000000, /* Log file */
- VXFS_IFEMP = 0x14000000, /* Extent map file */
- VXFS_IFEAU = 0x15000000, /* Extent AU file */
- VXFS_IFAUS = 0x16000000, /* Extent AU summary file */
- VXFS_IFDEV = 0x17000000, /* Device config file */
-
-};
-
-#define VXFS_TYPE_MASK 0xfffff000
-
-#define VXFS_IS_TYPE(ip,type) (((ip)->vii_mode & VXFS_TYPE_MASK) == (type))
-#define VXFS_ISFIFO(x) VXFS_IS_TYPE((x),VXFS_IFIFO)
-#define VXFS_ISCHR(x) VXFS_IS_TYPE((x),VXFS_IFCHR)
-#define VXFS_ISDIR(x) VXFS_IS_TYPE((x),VXFS_IFDIR)
-#define VXFS_ISNAM(x) VXFS_IS_TYPE((x),VXFS_IFNAM)
-#define VXFS_ISBLK(x) VXFS_IS_TYPE((x),VXFS_IFBLK)
-#define VXFS_ISLNK(x) VXFS_IS_TYPE((x),VXFS_IFLNK)
-#define VXFS_ISREG(x) VXFS_IS_TYPE((x),VXFS_IFREG)
-#define VXFS_ISCMP(x) VXFS_IS_TYPE((x),VXFS_IFCMP)
-#define VXFS_ISSOC(x) VXFS_IS_TYPE((x),VXFS_IFSOC)
-
-#define VXFS_ISFSH(x) VXFS_IS_TYPE((x),VXFS_IFFSH)
-#define VXFS_ISILT(x) VXFS_IS_TYPE((x),VXFS_IFILT)
-
-/*
- * Inmode organisation types.
- */
-enum {
- VXFS_ORG_NONE = 0, /* Inode has *no* format ?!? */
- VXFS_ORG_EXT4 = 1, /* Ext4 */
- VXFS_ORG_IMMED = 2, /* All data stored in inode */
- VXFS_ORG_TYPED = 3, /* Typed extents */
-};
-
-#define VXFS_IS_ORG(ip,org) ((ip)->vii_orgtype == (org))
-#define VXFS_ISNONE(ip) VXFS_IS_ORG((ip), VXFS_ORG_NONE)
-#define VXFS_ISEXT4(ip) VXFS_IS_ORG((ip), VXFS_ORG_EXT4)
-#define VXFS_ISIMMED(ip) VXFS_IS_ORG((ip), VXFS_ORG_IMMED)
-#define VXFS_ISTYPED(ip) VXFS_IS_ORG((ip), VXFS_ORG_TYPED)
-
-/*
- * Get filesystem private data from VFS superblock.
- */
-#define VXFS_SBI(sbp) \
- ((struct vxfs_sb_info *)(sbp)->s_fs_info)
-
-#endif /* _VXFS_SUPER_H_ */
+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Copyright (c) 2000-2001 Christoph Hellwig.
- */
-
-/*
- * Veritas filesystem driver - filesystem to disk block mapping.
- */
-#include <linux/fs.h>
-#include <linux/buffer_head.h>
-#include <linux/kernel.h>
-
-#include "vxfs.h"
-#include "vxfs_inode.h"
-#include "vxfs_extern.h"
-
-
-#ifdef DIAGNOSTIC
-static void
-vxfs_typdump(struct vxfs_typed *typ)
-{
- printk(KERN_DEBUG "type=%Lu ", typ->vt_hdr >> VXFS_TYPED_TYPESHIFT);
- printk("offset=%Lx ", typ->vt_hdr & VXFS_TYPED_OFFSETMASK);
- printk("block=%x ", typ->vt_block);
- printk("size=%x\n", typ->vt_size);
-}
-#endif
-
-/**
- * vxfs_bmap_ext4 - do bmap for ext4 extents
- * @ip: pointer to the inode we do bmap for
- * @bn: logical block.
- *
- * Description:
- * vxfs_bmap_ext4 performs the bmap operation for inodes with
- * ext4-style extents (which are much like the traditional UNIX
- * inode organisation).
- *
- * Returns:
- * The physical block number on success, else Zero.
- */
-static daddr_t
-vxfs_bmap_ext4(struct inode *ip, long bn)
-{
- struct super_block *sb = ip->i_sb;
- struct vxfs_inode_info *vip = VXFS_INO(ip);
- struct vxfs_sb_info *sbi = VXFS_SBI(sb);
- unsigned long bsize = sb->s_blocksize;
- u32 indsize = fs32_to_cpu(sbi, vip->vii_ext4.ve4_indsize);
- int i;
-
- if (indsize > sb->s_blocksize)
- goto fail_size;
-
- for (i = 0; i < VXFS_NDADDR; i++) {
- struct direct *d = vip->vii_ext4.ve4_direct + i;
- if (bn >= 0 && bn < fs32_to_cpu(sbi, d->size))
- return (bn + fs32_to_cpu(sbi, d->extent));
- bn -= fs32_to_cpu(sbi, d->size);
- }
-
- if ((bn / (indsize * indsize * bsize / 4)) == 0) {
- struct buffer_head *buf;
- daddr_t bno;
- __fs32 *indir;
-
- buf = sb_bread(sb,
- fs32_to_cpu(sbi, vip->vii_ext4.ve4_indir[0]));
- if (!buf || !buffer_mapped(buf))
- goto fail_buf;
-
- indir = (__fs32 *)buf->b_data;
- bno = fs32_to_cpu(sbi, indir[(bn / indsize) % (indsize * bn)]) +
- (bn % indsize);
-
- brelse(buf);
- return bno;
- } else
- printk(KERN_WARNING "no matching indir?");
-
- return 0;
-
-fail_size:
- printk("vxfs: indirect extent too big!\n");
-fail_buf:
- return 0;
-}
-
-/**
- * vxfs_bmap_indir - recursion for vxfs_bmap_typed
- * @ip: pointer to the inode we do bmap for
- * @indir: indirect block we start reading at
- * @size: size of the typed area to search
- * @block: partially result from further searches
- *
- * Description:
- * vxfs_bmap_indir reads a &struct vxfs_typed at @indir
- * and performs the type-defined action.
- *
- * Returns:
- * The physical block number on success, else Zero.
- *
- * Note:
- * Kernelstack is rare. Unrecurse?
- */
-static daddr_t
-vxfs_bmap_indir(struct inode *ip, long indir, int size, long block)
-{
- struct vxfs_sb_info *sbi = VXFS_SBI(ip->i_sb);
- struct buffer_head *bp = NULL;
- daddr_t pblock = 0;
- int i;
-
- for (i = 0; i < size * VXFS_TYPED_PER_BLOCK(ip->i_sb); i++) {
- struct vxfs_typed *typ;
- int64_t off;
-
- bp = sb_bread(ip->i_sb,
- indir + (i / VXFS_TYPED_PER_BLOCK(ip->i_sb)));
- if (!bp || !buffer_mapped(bp))
- return 0;
-
- typ = ((struct vxfs_typed *)bp->b_data) +
- (i % VXFS_TYPED_PER_BLOCK(ip->i_sb));
- off = fs64_to_cpu(sbi, typ->vt_hdr) & VXFS_TYPED_OFFSETMASK;
-
- if (block < off) {
- brelse(bp);
- continue;
- }
-
- switch ((u_int32_t)(fs64_to_cpu(sbi, typ->vt_hdr) >>
- VXFS_TYPED_TYPESHIFT)) {
- case VXFS_TYPED_INDIRECT:
- pblock = vxfs_bmap_indir(ip,
- fs32_to_cpu(sbi, typ->vt_block),
- fs32_to_cpu(sbi, typ->vt_size),
- block - off);
- if (pblock == -2)
- break;
- goto out;
- case VXFS_TYPED_DATA:
- if ((block - off) >= fs32_to_cpu(sbi, typ->vt_size))
- break;
- pblock = fs32_to_cpu(sbi, typ->vt_block) + block - off;
- goto out;
- case VXFS_TYPED_INDIRECT_DEV4:
- case VXFS_TYPED_DATA_DEV4: {
- struct vxfs_typed_dev4 *typ4 =
- (struct vxfs_typed_dev4 *)typ;
-
- printk(KERN_INFO "\n\nTYPED_DEV4 detected!\n");
- printk(KERN_INFO "block: %llu\tsize: %lld\tdev: %d\n",
- fs64_to_cpu(sbi, typ4->vd4_block),
- fs64_to_cpu(sbi, typ4->vd4_size),
- fs32_to_cpu(sbi, typ4->vd4_dev));
- goto fail;
- }
- default:
- printk(KERN_ERR "%s:%d vt_hdr %llu\n", __func__,
- __LINE__, fs64_to_cpu(sbi, typ->vt_hdr));
- BUG();
- }
- brelse(bp);
- }
-
-fail:
- pblock = 0;
-out:
- brelse(bp);
- return (pblock);
-}
-
-/**
- * vxfs_bmap_typed - bmap for typed extents
- * @ip: pointer to the inode we do bmap for
- * @iblock: logical block
- *
- * Description:
- * Performs the bmap operation for typed extents.
- *
- * Returns:
- * The physical block number on success, else Zero.
- */
-static daddr_t
-vxfs_bmap_typed(struct inode *ip, long iblock)
-{
- struct vxfs_inode_info *vip = VXFS_INO(ip);
- struct vxfs_sb_info *sbi = VXFS_SBI(ip->i_sb);
- daddr_t pblock = 0;
- int i;
-
- for (i = 0; i < VXFS_NTYPED; i++) {
- struct vxfs_typed *typ = vip->vii_org.typed + i;
- u64 hdr = fs64_to_cpu(sbi, typ->vt_hdr);
- int64_t off = (hdr & VXFS_TYPED_OFFSETMASK);
-
-#ifdef DIAGNOSTIC
- vxfs_typdump(typ);
-#endif
- if (iblock < off)
- continue;
- switch ((u32)(hdr >> VXFS_TYPED_TYPESHIFT)) {
- case VXFS_TYPED_INDIRECT:
- pblock = vxfs_bmap_indir(ip,
- fs32_to_cpu(sbi, typ->vt_block),
- fs32_to_cpu(sbi, typ->vt_size),
- iblock - off);
- if (pblock == -2)
- break;
- return (pblock);
- case VXFS_TYPED_DATA:
- if ((iblock - off) < fs32_to_cpu(sbi, typ->vt_size))
- return (fs32_to_cpu(sbi, typ->vt_block) +
- iblock - off);
- break;
- case VXFS_TYPED_INDIRECT_DEV4:
- case VXFS_TYPED_DATA_DEV4: {
- struct vxfs_typed_dev4 *typ4 =
- (struct vxfs_typed_dev4 *)typ;
-
- printk(KERN_INFO "\n\nTYPED_DEV4 detected!\n");
- printk(KERN_INFO "block: %llu\tsize: %lld\tdev: %d\n",
- fs64_to_cpu(sbi, typ4->vd4_block),
- fs64_to_cpu(sbi, typ4->vd4_size),
- fs32_to_cpu(sbi, typ4->vd4_dev));
- return 0;
- }
- default:
- WARN_ON_ONCE(1);
- return 0;
- }
- }
-
- return 0;
-}
-
-/**
- * vxfs_bmap1 - vxfs-internal bmap operation
- * @ip: pointer to the inode we do bmap for
- * @iblock: logical block
- *
- * Description:
- * vxfs_bmap1 perfoms a logical to physical block mapping
- * for vxfs-internal purposes.
- *
- * Returns:
- * The physical block number on success, else Zero.
- */
-daddr_t
-vxfs_bmap1(struct inode *ip, long iblock)
-{
- struct vxfs_inode_info *vip = VXFS_INO(ip);
-
- if (VXFS_ISEXT4(vip))
- return vxfs_bmap_ext4(ip, iblock);
- if (VXFS_ISTYPED(vip))
- return vxfs_bmap_typed(ip, iblock);
- if (VXFS_ISNONE(vip))
- goto unsupp;
- if (VXFS_ISIMMED(vip))
- goto unsupp;
-
- printk(KERN_WARNING "vxfs: inode %llu has no valid orgtype (%x)\n",
- ip->i_ino, vip->vii_orgtype);
- BUG();
-
-unsupp:
- printk(KERN_WARNING "vxfs: inode %llu has an unsupported orgtype (%x)\n",
- ip->i_ino, vip->vii_orgtype);
- return 0;
-}
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Copyright (c) 2000-2001 Christoph Hellwig.
- */
-#ifndef _VXFS_DIR_H_
-#define _VXFS_DIR_H_
-
-/*
- * Veritas filesystem driver - directory structure.
- *
- * This file contains the definition of the vxfs directory format.
- */
-
-
-/*
- * VxFS directory block header.
- *
- * This entry is the head of every filesystem block in a directory.
- * It is used for free space management and additionally includes
- * a hash for speeding up directory search (lookup).
- *
- * The hash may be empty and in fact we do not use it all in the
- * Linux driver for now.
- */
-struct vxfs_dirblk {
- __fs16 d_free; /* free space in dirblock */
- __fs16 d_nhash; /* no of hash chains */
- __fs16 d_hash[]; /* hash chain */
-};
-
-/*
- * VXFS_NAMELEN is the maximum length of the d_name field
- * of an VxFS directory entry.
- */
-#define VXFS_NAMELEN 256
-
-/*
- * VxFS directory entry.
- */
-struct vxfs_direct {
- __fs32 d_ino; /* inode number */
- __fs16 d_reclen; /* record length */
- __fs16 d_namelen; /* d_name length */
- __fs16 d_hashnext; /* next hash entry */
- char d_name[VXFS_NAMELEN]; /* name */
-};
-
-/*
- * VXFS_DIRPAD defines the directory entry boundaries, is _must_ be
- * a multiple of four.
- * VXFS_NAMEMIN is the length of a directory entry with a NULL d_name.
- * VXFS_DIRROUND is an internal macros that rounds a length to a value
- * usable for directory sizes.
- * VXFS_DIRLEN calculates the directory entry size for an entry with
- * a d_name with size len.
- */
-#define VXFS_DIRPAD 4
-#define VXFS_NAMEMIN offsetof(struct vxfs_direct, d_name)
-#define VXFS_DIRROUND(len) ((VXFS_DIRPAD + (len) - 1) & ~(VXFS_DIRPAD -1))
-#define VXFS_DIRLEN(len) (VXFS_DIRROUND(VXFS_NAMEMIN + (len)))
-
-/*
- * VXFS_DIRBLKOV is the overhead of a specific dirblock.
- */
-#define VXFS_DIRBLKOV(sbi, dbp) \
- ((sizeof(short) * fs16_to_cpu(sbi, dbp->d_nhash)) + 4)
-
-#endif /* _VXFS_DIR_H_ */
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Copyright (c) 2000-2001 Christoph Hellwig.
- */
-#ifndef _VXFS_EXTERN_H_
-#define _VXFS_EXTERN_H_
-
-/*
- * Veritas filesystem driver - external prototypes.
- *
- * This file contains prototypes for all vxfs functions used
- * outside their respective source files.
- */
-
-
-struct kmem_cache;
-struct super_block;
-struct vxfs_inode_info;
-struct inode;
-
-
-/* vxfs_bmap.c */
-extern daddr_t vxfs_bmap1(struct inode *, long);
-
-/* vxfs_fshead.c */
-extern int vxfs_read_fshead(struct super_block *);
-
-/* vxfs_inode.c */
-extern const struct address_space_operations vxfs_immed_aops;
-extern void vxfs_dumpi(struct vxfs_inode_info *, ino_t);
-extern struct inode *vxfs_blkiget(struct super_block *, u_long, ino_t);
-extern struct inode *vxfs_stiget(struct super_block *, ino_t);
-extern struct inode *vxfs_iget(struct super_block *, ino_t);
-extern void vxfs_evict_inode(struct inode *);
-
-/* vxfs_lookup.c */
-extern const struct inode_operations vxfs_dir_inode_ops;
-extern const struct file_operations vxfs_dir_operations;
-
-/* vxfs_olt.c */
-extern int vxfs_read_olt(struct super_block *, u_long);
-
-/* vxfs_subr.c */
-extern const struct address_space_operations vxfs_aops;
-extern struct page * vxfs_get_page(struct address_space *, u_long);
-extern void vxfs_put_page(struct page *);
-extern struct buffer_head * vxfs_bread(struct inode *, int);
-
-#endif /* _VXFS_EXTERN_H_ */
+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Copyright (c) 2000-2001 Christoph Hellwig.
- * Copyright (c) 2016 Krzysztof Blaszkowski
- */
-
-/*
- * Veritas filesystem driver - fileset header routines.
- */
-#include <linux/fs.h>
-#include <linux/buffer_head.h>
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/string.h>
-
-#include "vxfs.h"
-#include "vxfs_inode.h"
-#include "vxfs_extern.h"
-#include "vxfs_fshead.h"
-
-
-#ifdef DIAGNOSTIC
-static void
-vxfs_dumpfsh(struct vxfs_fsh *fhp)
-{
- printk("\n\ndumping fileset header:\n");
- printk("----------------------------\n");
- printk("version: %u\n", fhp->fsh_version);
- printk("fsindex: %u\n", fhp->fsh_fsindex);
- printk("iauino: %u\tninodes:%u\n",
- fhp->fsh_iauino, fhp->fsh_ninodes);
- printk("maxinode: %u\tlctino: %u\n",
- fhp->fsh_maxinode, fhp->fsh_lctino);
- printk("nau: %u\n", fhp->fsh_nau);
- printk("ilistino[0]: %u\tilistino[1]: %u\n",
- fhp->fsh_ilistino[0], fhp->fsh_ilistino[1]);
-}
-#endif
-
-/**
- * vxfs_getfsh - read fileset header into memory
- * @ip: the (fake) fileset header inode
- * @which: 0 for the structural, 1 for the primary fsh.
- *
- * Description:
- * vxfs_getfsh reads either the structural or primary fileset header
- * described by @ip into memory.
- *
- * Returns:
- * The fileset header structure on success, else Zero.
- */
-static struct vxfs_fsh *
-vxfs_getfsh(struct inode *ip, int which)
-{
- struct buffer_head *bp;
-
- bp = vxfs_bread(ip, which);
- if (bp) {
- struct vxfs_fsh *fhp;
-
- if (!(fhp = kmalloc_obj(*fhp)))
- goto out;
- memcpy(fhp, bp->b_data, sizeof(*fhp));
-
- put_bh(bp);
- return (fhp);
- }
-out:
- brelse(bp);
- return NULL;
-}
-
-/**
- * vxfs_read_fshead - read the fileset headers
- * @sbp: superblock to which the fileset belongs
- *
- * Description:
- * vxfs_read_fshead will fill the inode and structural inode list in @sb.
- *
- * Returns:
- * Zero on success, else a negative error code (-EINVAL).
- */
-int
-vxfs_read_fshead(struct super_block *sbp)
-{
- struct vxfs_sb_info *infp = VXFS_SBI(sbp);
- struct vxfs_fsh *pfp, *sfp;
- struct vxfs_inode_info *vip;
-
- infp->vsi_fship = vxfs_blkiget(sbp, infp->vsi_iext, infp->vsi_fshino);
- if (!infp->vsi_fship) {
- printk(KERN_ERR "vxfs: unable to read fsh inode\n");
- return -EINVAL;
- }
-
- vip = VXFS_INO(infp->vsi_fship);
- if (!VXFS_ISFSH(vip)) {
- printk(KERN_ERR "vxfs: fsh list inode is of wrong type (%x)\n",
- vip->vii_mode & VXFS_TYPE_MASK);
- goto out_iput_fship;
- }
-
-#ifdef DIAGNOSTIC
- printk("vxfs: fsh inode dump:\n");
- vxfs_dumpi(vip, infp->vsi_fshino);
-#endif
-
- sfp = vxfs_getfsh(infp->vsi_fship, 0);
- if (!sfp) {
- printk(KERN_ERR "vxfs: unable to get structural fsh\n");
- goto out_iput_fship;
- }
-
-#ifdef DIAGNOSTIC
- vxfs_dumpfsh(sfp);
-#endif
-
- pfp = vxfs_getfsh(infp->vsi_fship, 1);
- if (!pfp) {
- printk(KERN_ERR "vxfs: unable to get primary fsh\n");
- goto out_free_sfp;
- }
-
-#ifdef DIAGNOSTIC
- vxfs_dumpfsh(pfp);
-#endif
-
- infp->vsi_stilist = vxfs_blkiget(sbp, infp->vsi_iext,
- fs32_to_cpu(infp, sfp->fsh_ilistino[0]));
- if (!infp->vsi_stilist) {
- printk(KERN_ERR "vxfs: unable to get structural list inode\n");
- goto out_free_pfp;
- }
- if (!VXFS_ISILT(VXFS_INO(infp->vsi_stilist))) {
- printk(KERN_ERR "vxfs: structural list inode is of wrong type (%x)\n",
- VXFS_INO(infp->vsi_stilist)->vii_mode & VXFS_TYPE_MASK);
- goto out_iput_stilist;
- }
-
- infp->vsi_ilist = vxfs_stiget(sbp, fs32_to_cpu(infp, pfp->fsh_ilistino[0]));
- if (!infp->vsi_ilist) {
- printk(KERN_ERR "vxfs: unable to get inode list inode\n");
- goto out_iput_stilist;
- }
- if (!VXFS_ISILT(VXFS_INO(infp->vsi_ilist))) {
- printk(KERN_ERR "vxfs: inode list inode is of wrong type (%x)\n",
- VXFS_INO(infp->vsi_ilist)->vii_mode & VXFS_TYPE_MASK);
- goto out_iput_ilist;
- }
-
- kfree(pfp);
- kfree(sfp);
- return 0;
-
- out_iput_ilist:
- iput(infp->vsi_ilist);
- out_iput_stilist:
- iput(infp->vsi_stilist);
- out_free_pfp:
- kfree(pfp);
- out_free_sfp:
- kfree(sfp);
- out_iput_fship:
- iput(infp->vsi_fship);
- return -EINVAL;
-}
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Copyright (c) 2000-2001 Christoph Hellwig.
- * Copyright (c) 2016 Krzysztof Blaszkowski
- */
-#ifndef _VXFS_FSHEAD_H_
-#define _VXFS_FSHEAD_H_
-
-/*
- * Veritas filesystem driver - fileset header structures.
- *
- * This file contains the physical structure of the VxFS
- * fileset header.
- */
-
-
-/*
- * Fileset header
- */
-struct vxfs_fsh {
- __fs32 fsh_version; /* fileset header version */
- __fs32 fsh_fsindex; /* fileset index */
- __fs32 fsh_time; /* modification time - sec */
- __fs32 fsh_utime; /* modification time - usec */
- __fs32 fsh_extop; /* extop flags */
- __fs32 fsh_ninodes; /* allocated inodes */
- __fs32 fsh_nau; /* number of IAUs */
- __fs32 fsh_old_ilesize; /* old size of ilist */
- __fs32 fsh_dflags; /* flags */
- __fs32 fsh_quota; /* quota limit */
- __fs32 fsh_maxinode; /* maximum inode number */
- __fs32 fsh_iauino; /* IAU inode */
- __fs32 fsh_ilistino[2]; /* ilist inodes */
- __fs32 fsh_lctino; /* link count table inode */
-
- /*
- * Slightly more fields follow, but they
- * a) are not of any interest for us, and
- * b) differ a lot in different vxfs versions/ports
- */
-};
-
-#endif /* _VXFS_FSHEAD_H_ */
+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Copyright (c) 2000-2001 Christoph Hellwig.
- */
-
-/*
- * Veritas filesystem driver - support for 'immed' inodes.
- */
-#include <linux/fs.h>
-#include <linux/pagemap.h>
-
-#include "vxfs.h"
-#include "vxfs_extern.h"
-#include "vxfs_inode.h"
-
-/**
- * vxfs_immed_read_folio - read part of an immed inode into pagecache
- * @fp: file context (unused)
- * @folio: folio to fill in.
- *
- * Description:
- * vxfs_immed_read_folio reads a part of the immed area of the
- * file that hosts @folio into the pagecache.
- *
- * Returns:
- * Zero on success, else a negative error code.
- *
- * Locking status:
- * @folio is locked and will be unlocked.
- */
-static int vxfs_immed_read_folio(struct file *fp, struct folio *folio)
-{
- struct vxfs_inode_info *vip = VXFS_INO(folio->mapping->host);
- void *src = vip->vii_immed.vi_immed + folio_pos(folio);
- unsigned long i;
-
- for (i = 0; i < folio_nr_pages(folio); i++) {
- memcpy_to_page(folio_page(folio, i), 0, src, PAGE_SIZE);
- src += PAGE_SIZE;
- }
-
- folio_mark_uptodate(folio);
- folio_unlock(folio);
-
- return 0;
-}
-
-/*
- * Address space operations for immed files and directories.
- */
-const struct address_space_operations vxfs_immed_aops = {
- .read_folio = vxfs_immed_read_folio,
-};
+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Copyright (c) 2000-2001 Christoph Hellwig.
- * Copyright (c) 2016 Krzysztof Blaszkowski
- */
-
-/*
- * Veritas filesystem driver - inode routines.
- */
-#include <linux/fs.h>
-#include <linux/buffer_head.h>
-#include <linux/pagemap.h>
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/namei.h>
-
-#include "vxfs.h"
-#include "vxfs_inode.h"
-#include "vxfs_extern.h"
-
-
-#ifdef DIAGNOSTIC
-/*
- * Dump inode contents (partially).
- */
-void
-vxfs_dumpi(struct vxfs_inode_info *vip, ino_t ino)
-{
- printk(KERN_DEBUG "\n\n");
- if (ino)
- printk(KERN_DEBUG "dumping vxfs inode %ld\n", ino);
- else
- printk(KERN_DEBUG "dumping unknown vxfs inode\n");
-
- printk(KERN_DEBUG "---------------------------\n");
- printk(KERN_DEBUG "mode is %x\n", vip->vii_mode);
- printk(KERN_DEBUG "nlink:%u, uid:%u, gid:%u\n",
- vip->vii_nlink, vip->vii_uid, vip->vii_gid);
- printk(KERN_DEBUG "size:%Lx, blocks:%u\n",
- vip->vii_size, vip->vii_blocks);
- printk(KERN_DEBUG "orgtype:%u\n", vip->vii_orgtype);
-}
-#endif
-
-/**
- * vxfs_transmod - mode for a VxFS inode
- * @vip: VxFS inode
- *
- * Description:
- * vxfs_transmod returns a Linux mode_t for a given
- * VxFS inode structure.
- */
-static __inline__ umode_t
-vxfs_transmod(struct vxfs_inode_info *vip)
-{
- umode_t ret = vip->vii_mode & ~VXFS_TYPE_MASK;
-
- if (VXFS_ISFIFO(vip))
- ret |= S_IFIFO;
- if (VXFS_ISCHR(vip))
- ret |= S_IFCHR;
- if (VXFS_ISDIR(vip))
- ret |= S_IFDIR;
- if (VXFS_ISBLK(vip))
- ret |= S_IFBLK;
- if (VXFS_ISLNK(vip))
- ret |= S_IFLNK;
- if (VXFS_ISREG(vip))
- ret |= S_IFREG;
- if (VXFS_ISSOC(vip))
- ret |= S_IFSOCK;
-
- return (ret);
-}
-
-static inline void dip2vip_cpy(struct vxfs_sb_info *sbi,
- struct vxfs_inode_info *vip, struct vxfs_dinode *dip)
-{
- struct inode *inode = &vip->vfs_inode;
-
- vip->vii_mode = fs32_to_cpu(sbi, dip->vdi_mode);
- vip->vii_nlink = fs32_to_cpu(sbi, dip->vdi_nlink);
- vip->vii_uid = fs32_to_cpu(sbi, dip->vdi_uid);
- vip->vii_gid = fs32_to_cpu(sbi, dip->vdi_gid);
- vip->vii_size = fs64_to_cpu(sbi, dip->vdi_size);
- vip->vii_atime = fs32_to_cpu(sbi, dip->vdi_atime);
- vip->vii_autime = fs32_to_cpu(sbi, dip->vdi_autime);
- vip->vii_mtime = fs32_to_cpu(sbi, dip->vdi_mtime);
- vip->vii_mutime = fs32_to_cpu(sbi, dip->vdi_mutime);
- vip->vii_ctime = fs32_to_cpu(sbi, dip->vdi_ctime);
- vip->vii_cutime = fs32_to_cpu(sbi, dip->vdi_cutime);
- vip->vii_orgtype = dip->vdi_orgtype;
-
- vip->vii_blocks = fs32_to_cpu(sbi, dip->vdi_blocks);
- vip->vii_gen = fs32_to_cpu(sbi, dip->vdi_gen);
-
- if (VXFS_ISDIR(vip))
- vip->vii_dotdot = fs32_to_cpu(sbi, dip->vdi_dotdot);
- else if (!VXFS_ISREG(vip) && !VXFS_ISLNK(vip))
- vip->vii_rdev = fs32_to_cpu(sbi, dip->vdi_rdev);
-
- /* don't endian swap the fields that differ by orgtype */
- memcpy(&vip->vii_org, &dip->vdi_org, sizeof(vip->vii_org));
-
- inode->i_mode = vxfs_transmod(vip);
- i_uid_write(inode, (uid_t)vip->vii_uid);
- i_gid_write(inode, (gid_t)vip->vii_gid);
-
- set_nlink(inode, vip->vii_nlink);
- inode->i_size = vip->vii_size;
-
- inode_set_atime(inode, vip->vii_atime, 0);
- inode_set_ctime(inode, vip->vii_ctime, 0);
- inode_set_mtime(inode, vip->vii_mtime, 0);
-
- inode->i_blocks = vip->vii_blocks;
- inode->i_generation = vip->vii_gen;
-}
-
-/**
- * vxfs_blkiget - find inode based on extent #
- * @sbp: superblock of the filesystem we search in
- * @extent: number of the extent to search
- * @ino: inode number to search
- *
- * Description:
- * vxfs_blkiget searches inode @ino in the filesystem described by
- * @sbp in the extent @extent.
- * Returns the matching VxFS inode on success, else a NULL pointer.
- *
- * NOTE:
- * While __vxfs_iget uses the pagecache vxfs_blkiget uses the
- * buffercache. This function should not be used outside the
- * read_super() method, otherwise the data may be incoherent.
- */
-struct inode *
-vxfs_blkiget(struct super_block *sbp, u_long extent, ino_t ino)
-{
- struct buffer_head *bp;
- struct inode *inode;
- u_long block, offset;
-
- inode = new_inode(sbp);
- if (!inode)
- return NULL;
- inode->i_ino = get_next_ino();
-
- block = extent + ((ino * VXFS_ISIZE) / sbp->s_blocksize);
- offset = ((ino % (sbp->s_blocksize / VXFS_ISIZE)) * VXFS_ISIZE);
- bp = sb_bread(sbp, block);
-
- if (bp && buffer_mapped(bp)) {
- struct vxfs_inode_info *vip = VXFS_INO(inode);
- struct vxfs_dinode *dip;
-
- dip = (struct vxfs_dinode *)(bp->b_data + offset);
- dip2vip_cpy(VXFS_SBI(sbp), vip, dip);
- vip->vfs_inode.i_mapping->a_ops = &vxfs_aops;
-#ifdef DIAGNOSTIC
- vxfs_dumpi(vip, ino);
-#endif
- brelse(bp);
- return inode;
- }
-
- printk(KERN_WARNING "vxfs: unable to read block %ld\n", block);
- brelse(bp);
- iput(inode);
- return NULL;
-}
-
-/**
- * __vxfs_iget - generic find inode facility
- * @ilistp: inode list
- * @vip: VxFS inode to fill in
- * @ino: inode number
- *
- * Description:
- * Search the for inode number @ino in the filesystem
- * described by @sbp. Use the specified inode table (@ilistp).
- * Returns the matching inode on success, else an error code.
- */
-static int
-__vxfs_iget(struct inode *ilistp, struct vxfs_inode_info *vip, ino_t ino)
-{
- struct page *pp;
- u_long offset;
-
- offset = (ino % (PAGE_SIZE / VXFS_ISIZE)) * VXFS_ISIZE;
- pp = vxfs_get_page(ilistp->i_mapping, ino * VXFS_ISIZE / PAGE_SIZE);
-
- if (!IS_ERR(pp)) {
- struct vxfs_dinode *dip;
- caddr_t kaddr = (char *)page_address(pp);
-
- dip = (struct vxfs_dinode *)(kaddr + offset);
- dip2vip_cpy(VXFS_SBI(ilistp->i_sb), vip, dip);
- vip->vfs_inode.i_mapping->a_ops = &vxfs_aops;
-#ifdef DIAGNOSTIC
- vxfs_dumpi(vip, ino);
-#endif
- vxfs_put_page(pp);
- return 0;
- }
-
- printk(KERN_WARNING "vxfs: error on page 0x%p for inode %ld\n",
- pp, (unsigned long)ino);
- return PTR_ERR(pp);
-}
-
-/**
- * vxfs_stiget - find inode using the structural inode list
- * @sbp: VFS superblock
- * @ino: inode #
- *
- * Description:
- * Find inode @ino in the filesystem described by @sbp using
- * the structural inode list.
- * Returns the matching inode on success, else a NULL pointer.
- */
-struct inode *
-vxfs_stiget(struct super_block *sbp, ino_t ino)
-{
- struct inode *inode;
- int error;
-
- inode = new_inode(sbp);
- if (!inode)
- return NULL;
- inode->i_ino = get_next_ino();
-
- error = __vxfs_iget(VXFS_SBI(sbp)->vsi_stilist, VXFS_INO(inode), ino);
- if (error) {
- iput(inode);
- return NULL;
- }
-
- return inode;
-}
-
-/**
- * vxfs_iget - get an inode
- * @sbp: the superblock to get the inode for
- * @ino: the number of the inode to get
- *
- * Description:
- * vxfs_read_inode creates an inode, reads the disk inode for @ino and fills
- * in all relevant fields in the new inode.
- */
-struct inode *
-vxfs_iget(struct super_block *sbp, ino_t ino)
-{
- struct vxfs_inode_info *vip;
- const struct address_space_operations *aops;
- struct inode *ip;
- int error;
-
- ip = iget_locked(sbp, ino);
- if (!ip)
- return ERR_PTR(-ENOMEM);
- if (!(inode_state_read_once(ip) & I_NEW))
- return ip;
-
- vip = VXFS_INO(ip);
- error = __vxfs_iget(VXFS_SBI(sbp)->vsi_ilist, vip, ino);
- if (error) {
- iget_failed(ip);
- return ERR_PTR(error);
- }
-
- if (VXFS_ISIMMED(vip))
- aops = &vxfs_immed_aops;
- else
- aops = &vxfs_aops;
-
- if (S_ISREG(ip->i_mode)) {
- ip->i_fop = &generic_ro_fops;
- ip->i_mapping->a_ops = aops;
- } else if (S_ISDIR(ip->i_mode)) {
- ip->i_op = &vxfs_dir_inode_ops;
- ip->i_fop = &vxfs_dir_operations;
- ip->i_mapping->a_ops = aops;
- } else if (S_ISLNK(ip->i_mode)) {
- if (!VXFS_ISIMMED(vip)) {
- ip->i_op = &page_symlink_inode_operations;
- inode_nohighmem(ip);
- ip->i_mapping->a_ops = &vxfs_aops;
- } else {
- ip->i_op = &simple_symlink_inode_operations;
- ip->i_link = vip->vii_immed.vi_immed;
- nd_terminate_link(ip->i_link, ip->i_size,
- sizeof(vip->vii_immed.vi_immed) - 1);
- }
- } else
- init_special_inode(ip, ip->i_mode, old_decode_dev(vip->vii_rdev));
-
- unlock_new_inode(ip);
- return ip;
-}
-
-/**
- * vxfs_evict_inode - remove inode from main memory
- * @ip: inode to discard.
- *
- * Description:
- * vxfs_evict_inode() is called on the final iput and frees the private
- * inode area.
- */
-void
-vxfs_evict_inode(struct inode *ip)
-{
- truncate_inode_pages_final(&ip->i_data);
- clear_inode(ip);
-}
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Copyright (c) 2000-2001 Christoph Hellwig.
- * Copyright (c) 2016 Krzysztof Blaszkowski
- */
-#ifndef _VXFS_INODE_H_
-#define _VXFS_INODE_H_
-
-/*
- * Veritas filesystem driver - inode structure.
- *
- * This file contains the definition of the disk and core
- * inodes of the Veritas Filesystem.
- */
-
-
-#define VXFS_ISIZE 0x100 /* Inode size */
-
-#define VXFS_NDADDR 10 /* Number of direct addrs in inode */
-#define VXFS_NIADDR 2 /* Number of indirect addrs in inode */
-#define VXFS_NIMMED 96 /* Size of immediate data in inode */
-#define VXFS_NTYPED 6 /* Num of typed extents */
-
-#define VXFS_TYPED_OFFSETMASK (0x00FFFFFFFFFFFFFFULL)
-#define VXFS_TYPED_TYPEMASK (0xFF00000000000000ULL)
-#define VXFS_TYPED_TYPESHIFT 56
-
-#define VXFS_TYPED_PER_BLOCK(sbp) \
- ((sbp)->s_blocksize / sizeof(struct vxfs_typed))
-
-/*
- * Possible extent descriptor types for %VXFS_ORG_TYPED extents.
- */
-enum {
- VXFS_TYPED_INDIRECT = 1,
- VXFS_TYPED_DATA = 2,
- VXFS_TYPED_INDIRECT_DEV4 = 3,
- VXFS_TYPED_DATA_DEV4 = 4,
-};
-
-/*
- * Data stored immediately in the inode.
- */
-struct vxfs_immed {
- __u8 vi_immed[VXFS_NIMMED];
-};
-
-struct vxfs_ext4 {
- __fs32 ve4_spare; /* ?? */
- __fs32 ve4_indsize; /* Indirect extent size */
- __fs32 ve4_indir[VXFS_NIADDR]; /* Indirect extents */
- struct direct { /* Direct extents */
- __fs32 extent; /* Extent number */
- __fs32 size; /* Size of extent */
- } ve4_direct[VXFS_NDADDR];
-};
-
-struct vxfs_typed {
- __fs64 vt_hdr; /* Header, 0xTTOOOOOOOOOOOOOO; T=type,O=offs */
- __fs32 vt_block; /* Extent block */
- __fs32 vt_size; /* Size in blocks */
-};
-
-struct vxfs_typed_dev4 {
- __fs64 vd4_hdr; /* Header, 0xTTOOOOOOOOOOOOOO; T=type,O=offs */
- __fs64 vd4_block; /* Extent block */
- __fs64 vd4_size; /* Size in blocks */
- __fs32 vd4_dev; /* Device ID */
- __u8 __pad1;
-};
-
-/*
- * The inode as contained on the physical device.
- */
-struct vxfs_dinode {
- __fs32 vdi_mode;
- __fs32 vdi_nlink; /* Link count */
- __fs32 vdi_uid; /* UID */
- __fs32 vdi_gid; /* GID */
- __fs64 vdi_size; /* Inode size in bytes */
- __fs32 vdi_atime; /* Last time accessed - sec */
- __fs32 vdi_autime; /* Last time accessed - usec */
- __fs32 vdi_mtime; /* Last modify time - sec */
- __fs32 vdi_mutime; /* Last modify time - usec */
- __fs32 vdi_ctime; /* Create time - sec */
- __fs32 vdi_cutime; /* Create time - usec */
- __u8 vdi_aflags; /* Allocation flags */
- __u8 vdi_orgtype; /* Organisation type */
- __fs16 vdi_eopflags;
- __fs32 vdi_eopdata;
- union {
- __fs32 rdev;
- __fs32 dotdot;
- struct {
- __u32 reserved;
- __fs32 fixextsize;
- } i_regular;
- struct {
- __fs32 matchino;
- __fs32 fsetindex;
- } i_vxspec;
- __u64 align;
- } vdi_ftarea;
- __fs32 vdi_blocks; /* How much blocks does inode occupy */
- __fs32 vdi_gen; /* Inode generation */
- __fs64 vdi_version; /* Version */
- union {
- struct vxfs_immed immed;
- struct vxfs_ext4 ext4;
- struct vxfs_typed typed[VXFS_NTYPED];
- } vdi_org;
- __fs32 vdi_iattrino;
-};
-
-#define vdi_rdev vdi_ftarea.rdev
-#define vdi_dotdot vdi_ftarea.dotdot
-#define vdi_fixextsize vdi_ftarea.regular.fixextsize
-#define vdi_matchino vdi_ftarea.vxspec.matchino
-#define vdi_fsetindex vdi_ftarea.vxspec.fsetindex
-
-#define vdi_immed vdi_org.immed
-#define vdi_ext4 vdi_org.ext4
-#define vdi_typed vdi_org.typed
-
-
-/*
- * The inode as represented in the main memory.
- */
-struct vxfs_inode_info {
- struct inode vfs_inode;
-
- __u32 vii_mode;
- __u32 vii_nlink; /* Link count */
- __u32 vii_uid; /* UID */
- __u32 vii_gid; /* GID */
- __u64 vii_size; /* Inode size in bytes */
- __u32 vii_atime; /* Last time accessed - sec */
- __u32 vii_autime; /* Last time accessed - usec */
- __u32 vii_mtime; /* Last modify time - sec */
- __u32 vii_mutime; /* Last modify time - usec */
- __u32 vii_ctime; /* Create time - sec */
- __u32 vii_cutime; /* Create time - usec */
- __u8 vii_orgtype; /* Organisation type */
- union {
- __u32 rdev;
- __u32 dotdot;
- } vii_ftarea;
- __u32 vii_blocks; /* How much blocks does inode occupy */
- __u32 vii_gen; /* Inode generation */
- union {
- struct vxfs_immed immed;
- struct vxfs_ext4 ext4;
- struct vxfs_typed typed[VXFS_NTYPED];
- } vii_org;
-};
-
-#define vii_rdev vii_ftarea.rdev
-#define vii_dotdot vii_ftarea.dotdot
-
-#define vii_immed vii_org.immed
-#define vii_ext4 vii_org.ext4
-#define vii_typed vii_org.typed
-
-static inline struct vxfs_inode_info *VXFS_INO(struct inode *inode)
-{
- return container_of(inode, struct vxfs_inode_info, vfs_inode);
-}
-
-#endif /* _VXFS_INODE_H_ */
+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Copyright (c) 2000-2001 Christoph Hellwig.
- * Copyright (c) 2016 Krzysztof Blaszkowski
- */
-
-/*
- * Veritas filesystem driver - lookup and other directory related code.
- */
-#include <linux/fs.h>
-#include <linux/filelock.h>
-#include <linux/time.h>
-#include <linux/mm.h>
-#include <linux/highmem.h>
-#include <linux/kernel.h>
-#include <linux/pagemap.h>
-
-#include "vxfs.h"
-#include "vxfs_dir.h"
-#include "vxfs_inode.h"
-#include "vxfs_extern.h"
-
-/*
- * Number of VxFS blocks per page.
- */
-#define VXFS_BLOCK_PER_PAGE(sbp) ((PAGE_SIZE / (sbp)->s_blocksize))
-
-
-static struct dentry * vxfs_lookup(struct inode *, struct dentry *, unsigned int);
-static int vxfs_readdir(struct file *, struct dir_context *);
-
-const struct inode_operations vxfs_dir_inode_ops = {
- .lookup = vxfs_lookup,
-};
-
-const struct file_operations vxfs_dir_operations = {
- .llseek = generic_file_llseek,
- .read = generic_read_dir,
- .iterate_shared = vxfs_readdir,
- .setlease = generic_setlease,
-};
-
-
-/**
- * vxfs_find_entry - find a mathing directory entry for a dentry
- * @ip: directory inode
- * @dp: dentry for which we want to find a direct
- * @ppp: gets filled with the page the return value sits in
- *
- * Description:
- * vxfs_find_entry finds a &struct vxfs_direct for the VFS directory
- * cache entry @dp. @ppp will be filled with the page the return
- * value resides in.
- *
- * Returns:
- * The wanted direct on success, else a NULL pointer.
- */
-static struct vxfs_direct *
-vxfs_find_entry(struct inode *ip, struct dentry *dp, struct page **ppp)
-{
- u_long bsize = ip->i_sb->s_blocksize;
- const char *name = dp->d_name.name;
- int namelen = dp->d_name.len;
- loff_t limit = VXFS_DIRROUND(ip->i_size);
- struct vxfs_direct *de_exit = NULL;
- loff_t pos = 0;
- struct vxfs_sb_info *sbi = VXFS_SBI(ip->i_sb);
-
- while (pos < limit) {
- struct page *pp;
- char *kaddr;
- int pg_ofs = pos & ~PAGE_MASK;
-
- pp = vxfs_get_page(ip->i_mapping, pos >> PAGE_SHIFT);
- if (IS_ERR(pp))
- return NULL;
- kaddr = (char *)page_address(pp);
-
- while (pg_ofs < PAGE_SIZE && pos < limit) {
- struct vxfs_direct *de;
-
- if ((pos & (bsize - 1)) < 4) {
- struct vxfs_dirblk *dbp =
- (struct vxfs_dirblk *)
- (kaddr + (pos & ~PAGE_MASK));
- int overhead = VXFS_DIRBLKOV(sbi, dbp);
-
- pos += overhead;
- pg_ofs += overhead;
- }
- de = (struct vxfs_direct *)(kaddr + pg_ofs);
-
- if (!de->d_reclen) {
- pos += bsize - 1;
- pos &= ~(bsize - 1);
- break;
- }
-
- pg_ofs += fs16_to_cpu(sbi, de->d_reclen);
- pos += fs16_to_cpu(sbi, de->d_reclen);
- if (!de->d_ino)
- continue;
-
- if (namelen != fs16_to_cpu(sbi, de->d_namelen))
- continue;
- if (!memcmp(name, de->d_name, namelen)) {
- *ppp = pp;
- de_exit = de;
- break;
- }
- }
- if (!de_exit)
- vxfs_put_page(pp);
- else
- break;
- }
-
- return de_exit;
-}
-
-/**
- * vxfs_inode_by_name - find inode number for dentry
- * @dip: directory to search in
- * @dp: dentry we search for
- *
- * Description:
- * vxfs_inode_by_name finds out the inode number of
- * the path component described by @dp in @dip.
- *
- * Returns:
- * The wanted inode number on success, else Zero.
- */
-static ino_t
-vxfs_inode_by_name(struct inode *dip, struct dentry *dp)
-{
- struct vxfs_direct *de;
- struct page *pp;
- ino_t ino = 0;
-
- de = vxfs_find_entry(dip, dp, &pp);
- if (de) {
- ino = fs32_to_cpu(VXFS_SBI(dip->i_sb), de->d_ino);
- kunmap(pp);
- put_page(pp);
- }
-
- return (ino);
-}
-
-/**
- * vxfs_lookup - lookup pathname component
- * @dip: dir in which we lookup
- * @dp: dentry we lookup
- * @flags: lookup flags
- *
- * Description:
- * vxfs_lookup tries to lookup the pathname component described
- * by @dp in @dip.
- *
- * Returns:
- * A NULL-pointer on success, else a negative error code encoded
- * in the return pointer.
- */
-static struct dentry *
-vxfs_lookup(struct inode *dip, struct dentry *dp, unsigned int flags)
-{
- struct inode *ip = NULL;
- ino_t ino;
-
- if (dp->d_name.len > VXFS_NAMELEN)
- return ERR_PTR(-ENAMETOOLONG);
-
- ino = vxfs_inode_by_name(dip, dp);
- if (ino)
- ip = vxfs_iget(dip->i_sb, ino);
- return d_splice_alias(ip, dp);
-}
-
-/**
- * vxfs_readdir - read a directory
- * @fp: the directory to read
- * @ctx: dir_context for filldir/readdir
- *
- * Description:
- * vxfs_readdir fills @retp with directory entries from @fp
- * using the VFS supplied callback @filler.
- *
- * Returns:
- * Zero.
- */
-static int
-vxfs_readdir(struct file *fp, struct dir_context *ctx)
-{
- struct inode *ip = file_inode(fp);
- struct super_block *sbp = ip->i_sb;
- u_long bsize = sbp->s_blocksize;
- loff_t pos, limit;
- struct vxfs_sb_info *sbi = VXFS_SBI(sbp);
-
- if (ctx->pos == 0) {
- if (!dir_emit_dot(fp, ctx))
- goto out;
- ctx->pos++;
- }
- if (ctx->pos == 1) {
- if (!dir_emit(ctx, "..", 2, VXFS_INO(ip)->vii_dotdot, DT_DIR))
- goto out;
- ctx->pos++;
- }
-
- limit = VXFS_DIRROUND(ip->i_size);
- if (ctx->pos > limit)
- goto out;
-
- pos = ctx->pos & ~3L;
-
- while (pos < limit) {
- struct page *pp;
- char *kaddr;
- int pg_ofs = pos & ~PAGE_MASK;
- int rc = 0;
-
- pp = vxfs_get_page(ip->i_mapping, pos >> PAGE_SHIFT);
- if (IS_ERR(pp))
- return -ENOMEM;
-
- kaddr = (char *)page_address(pp);
-
- while (pg_ofs < PAGE_SIZE && pos < limit) {
- struct vxfs_direct *de;
-
- if ((pos & (bsize - 1)) < 4) {
- struct vxfs_dirblk *dbp =
- (struct vxfs_dirblk *)
- (kaddr + (pos & ~PAGE_MASK));
- int overhead = VXFS_DIRBLKOV(sbi, dbp);
-
- pos += overhead;
- pg_ofs += overhead;
- }
- de = (struct vxfs_direct *)(kaddr + pg_ofs);
-
- if (!de->d_reclen) {
- pos += bsize - 1;
- pos &= ~(bsize - 1);
- break;
- }
-
- pg_ofs += fs16_to_cpu(sbi, de->d_reclen);
- pos += fs16_to_cpu(sbi, de->d_reclen);
- if (!de->d_ino)
- continue;
-
- rc = dir_emit(ctx, de->d_name,
- fs16_to_cpu(sbi, de->d_namelen),
- fs32_to_cpu(sbi, de->d_ino),
- DT_UNKNOWN);
- if (!rc) {
- /* the dir entry was not read, fix pos. */
- pos -= fs16_to_cpu(sbi, de->d_reclen);
- break;
- }
- }
- vxfs_put_page(pp);
- if (!rc)
- break;
- }
-
- ctx->pos = pos | 2;
-
-out:
- return 0;
-}
+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Copyright (c) 2000-2001 Christoph Hellwig.
- */
-
-/*
- * Veritas filesystem driver - object location table support.
- */
-#include <linux/fs.h>
-#include <linux/buffer_head.h>
-#include <linux/kernel.h>
-
-#include "vxfs.h"
-#include "vxfs_olt.h"
-#include "vxfs_extern.h"
-
-
-static inline void
-vxfs_get_fshead(struct vxfs_oltfshead *fshp, struct vxfs_sb_info *infp)
-{
- BUG_ON(infp->vsi_fshino);
- infp->vsi_fshino = fs32_to_cpu(infp, fshp->olt_fsino[0]);
-}
-
-static inline void
-vxfs_get_ilist(struct vxfs_oltilist *ilistp, struct vxfs_sb_info *infp)
-{
- BUG_ON(infp->vsi_iext);
- infp->vsi_iext = fs32_to_cpu(infp, ilistp->olt_iext[0]);
-}
-
-static inline u_long
-vxfs_oblock(struct super_block *sbp, daddr_t block, u_long bsize)
-{
- BUG_ON(sbp->s_blocksize % bsize);
- return (block * (sbp->s_blocksize / bsize));
-}
-
-
-/**
- * vxfs_read_olt - read olt
- * @sbp: superblock of the filesystem
- * @bsize: blocksize of the filesystem
- *
- * Description:
- * vxfs_read_olt reads the olt of the filesystem described by @sbp
- * into main memory and does some basic setup.
- *
- * Returns:
- * Zero on success, else a negative error code.
- */
-int
-vxfs_read_olt(struct super_block *sbp, u_long bsize)
-{
- struct vxfs_sb_info *infp = VXFS_SBI(sbp);
- struct buffer_head *bp;
- struct vxfs_olt *op;
- char *oaddr, *eaddr;
-
- bp = sb_bread(sbp, vxfs_oblock(sbp, infp->vsi_oltext, bsize));
- if (!bp || !bp->b_data)
- goto fail;
-
- op = (struct vxfs_olt *)bp->b_data;
- if (fs32_to_cpu(infp, op->olt_magic) != VXFS_OLT_MAGIC) {
- printk(KERN_NOTICE "vxfs: ivalid olt magic number\n");
- goto fail;
- }
-
- /*
- * It is in theory possible that vsi_oltsize is > 1.
- * I've not seen any such filesystem yet and I'm lazy.. --hch
- */
- if (infp->vsi_oltsize > 1) {
- printk(KERN_NOTICE "vxfs: oltsize > 1 detected.\n");
- printk(KERN_NOTICE "vxfs: please notify hch@infradead.org\n");
- goto fail;
- }
-
- oaddr = bp->b_data + fs32_to_cpu(infp, op->olt_size);
- eaddr = bp->b_data + (infp->vsi_oltsize * sbp->s_blocksize);
-
- while (oaddr < eaddr) {
- struct vxfs_oltcommon *ocp =
- (struct vxfs_oltcommon *)oaddr;
-
- switch (fs32_to_cpu(infp, ocp->olt_type)) {
- case VXFS_OLT_FSHEAD:
- vxfs_get_fshead((struct vxfs_oltfshead *)oaddr, infp);
- break;
- case VXFS_OLT_ILIST:
- vxfs_get_ilist((struct vxfs_oltilist *)oaddr, infp);
- break;
- }
-
- oaddr += fs32_to_cpu(infp, ocp->olt_size);
- }
-
- brelse(bp);
- return (infp->vsi_fshino && infp->vsi_iext) ? 0 : -EINVAL;
-
-fail:
- brelse(bp);
- return -EINVAL;
-}
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Copyright (c) 2000-2001 Christoph Hellwig.
- */
-#ifndef _VXFS_OLT_H_
-#define _VXFS_OLT_H_
-
-/*
- * Veritas filesystem driver - Object Location Table data structures.
- *
- * This file contains definitions for the Object Location Table used
- * by the Veritas Filesystem version 2 and newer.
- */
-
-
-/*
- * OLT magic number (vxfs_olt->olt_magic).
- */
-#define VXFS_OLT_MAGIC 0xa504FCF5
-
-/*
- * VxFS OLT entry types.
- */
-enum {
- VXFS_OLT_FREE = 1,
- VXFS_OLT_FSHEAD = 2,
- VXFS_OLT_CUT = 3,
- VXFS_OLT_ILIST = 4,
- VXFS_OLT_DEV = 5,
- VXFS_OLT_SB = 6
-};
-
-/*
- * VxFS OLT header.
- *
- * The Object Location Table header is placed at the beginning of each
- * OLT extent. It is used to fing certain filesystem-wide metadata, e.g.
- * the initial inode list, the fileset header or the device configuration.
- */
-struct vxfs_olt {
- __fs32 olt_magic; /* magic number */
- __fs32 olt_size; /* size of this entry */
- __fs32 olt_checksum; /* checksum of extent */
- __u32 __unused1; /* ??? */
- __fs32 olt_mtime; /* time of last mod. (sec) */
- __fs32 olt_mutime; /* time of last mod. (usec) */
- __fs32 olt_totfree; /* free space in OLT extent */
- __fs32 olt_extents[2]; /* addr of this extent, replica */
- __fs32 olt_esize; /* size of this extent */
- __fs32 olt_next[2]; /* addr of next extent, replica */
- __fs32 olt_nsize; /* size of next extent */
- __u32 __unused2; /* align to 8 byte boundary */
-};
-
-/*
- * VxFS common OLT entry (on disk).
- */
-struct vxfs_oltcommon {
- __fs32 olt_type; /* type of this record */
- __fs32 olt_size; /* size of this record */
-};
-
-/*
- * VxFS free OLT entry (on disk).
- */
-struct vxfs_oltfree {
- __fs32 olt_type; /* type of this record */
- __fs32 olt_fsize; /* size of this free record */
-};
-
-/*
- * VxFS initial-inode list (on disk).
- */
-struct vxfs_oltilist {
- __fs32 olt_type; /* type of this record */
- __fs32 olt_size; /* size of this record */
- __fs32 olt_iext[2]; /* initial inode list, replica */
-};
-
-/*
- * Current Usage Table
- */
-struct vxfs_oltcut {
- __fs32 olt_type; /* type of this record */
- __fs32 olt_size; /* size of this record */
- __fs32 olt_cutino; /* inode of current usage table */
- __u8 __pad; /* unused, 8 byte align */
-};
-
-/*
- * Inodes containing Superblock, Intent log and OLTs
- */
-struct vxfs_oltsb {
- __fs32 olt_type; /* type of this record */
- __fs32 olt_size; /* size of this record */
- __fs32 olt_sbino; /* inode of superblock file */
- __u32 __unused1; /* ??? */
- __fs32 olt_logino[2]; /* inode of log file,replica */
- __fs32 olt_oltino[2]; /* inode of OLT, replica */
-};
-
-/*
- * Inode containing device configuration + it's replica
- */
-struct vxfs_oltdev {
- __fs32 olt_type; /* type of this record */
- __fs32 olt_size; /* size of this record */
- __fs32 olt_devino[2]; /* inode of device config files */
-};
-
-/*
- * Fileset header
- */
-struct vxfs_oltfshead {
- __fs32 olt_type; /* type number */
- __fs32 olt_size; /* size of this record */
- __fs32 olt_fsino[2]; /* inodes of fileset header */
-};
-
-#endif /* _VXFS_OLT_H_ */
+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Copyright (c) 2000-2001 Christoph Hellwig.
- */
-
-/*
- * Veritas filesystem driver - shared subroutines.
- */
-#include <linux/fs.h>
-#include <linux/buffer_head.h>
-#include <linux/kernel.h>
-#include <linux/pagemap.h>
-
-#include "vxfs_extern.h"
-
-
-static int vxfs_read_folio(struct file *, struct folio *);
-static sector_t vxfs_bmap(struct address_space *, sector_t);
-
-const struct address_space_operations vxfs_aops = {
- .read_folio = vxfs_read_folio,
- .bmap = vxfs_bmap,
-};
-
-inline void
-vxfs_put_page(struct page *pp)
-{
- kunmap(pp);
- put_page(pp);
-}
-
-/**
- * vxfs_get_page - read a page into memory.
- * @mapping: mapping to read from
- * @n: page number
- *
- * Description:
- * vxfs_get_page reads the @n th page of @ip into the pagecache.
- *
- * Returns:
- * The wanted page on success, else a NULL pointer.
- */
-struct page *
-vxfs_get_page(struct address_space *mapping, u_long n)
-{
- struct page * pp;
-
- pp = read_mapping_page(mapping, n, NULL);
-
- if (!IS_ERR(pp)) {
- kmap(pp);
- /** if (!PageChecked(pp)) **/
- /** vxfs_check_page(pp); **/
- }
-
- return (pp);
-}
-
-/**
- * vxfs_bread - read buffer for a give inode,block tuple
- * @ip: inode
- * @block: logical block
- *
- * Description:
- * The vxfs_bread function reads block no @block of
- * @ip into the buffercache.
- *
- * Returns:
- * The resulting &struct buffer_head.
- */
-struct buffer_head *
-vxfs_bread(struct inode *ip, int block)
-{
- struct buffer_head *bp;
- daddr_t pblock;
-
- pblock = vxfs_bmap1(ip, block);
- bp = sb_bread(ip->i_sb, pblock);
-
- return (bp);
-}
-
-/**
- * vxfs_getblk - locate buffer for given inode,block tuple
- * @ip: inode
- * @iblock: logical block
- * @bp: buffer skeleton
- * @create: %TRUE if blocks may be newly allocated.
- *
- * Description:
- * The vxfs_getblk function fills @bp with the right physical
- * block and device number to perform a lowlevel read/write on
- * it.
- *
- * Returns:
- * Zero on success, else a negativ error code (-EIO).
- */
-static int
-vxfs_getblk(struct inode *ip, sector_t iblock,
- struct buffer_head *bp, int create)
-{
- daddr_t pblock;
-
- pblock = vxfs_bmap1(ip, iblock);
- if (pblock != 0) {
- map_bh(bp, ip->i_sb, pblock);
- return 0;
- }
-
- return -EIO;
-}
-
-/**
- * vxfs_read_folio - read one page synchronously into the pagecache
- * @file: file context (unused)
- * @folio: folio to fill in.
- *
- * Description:
- * The vxfs_read_folio routine reads @folio synchronously into the
- * pagecache.
- *
- * Returns:
- * Zero on success, else a negative error code.
- *
- * Locking status:
- * @folio is locked and will be unlocked.
- */
-static int vxfs_read_folio(struct file *file, struct folio *folio)
-{
- return block_read_full_folio(folio, vxfs_getblk);
-}
-
-/**
- * vxfs_bmap - perform logical to physical block mapping
- * @mapping: logical to physical mapping to use
- * @block: logical block (relative to @mapping).
- *
- * Description:
- * Vxfs_bmap find out the corresponding phsical block to the
- * @mapping, @block pair.
- *
- * Returns:
- * Physical block number on success, else Zero.
- *
- * Locking status:
- * We are under the bkl.
- */
-static sector_t
-vxfs_bmap(struct address_space *mapping, sector_t block)
-{
- return generic_block_bmap(mapping, block, vxfs_getblk);
-}
+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Copyright (c) 2000-2001 Christoph Hellwig.
- * Copyright (c) 2016 Krzysztof Blaszkowski
- */
-
-/*
- * Veritas filesystem driver - superblock related routines.
- */
-#include <linux/init.h>
-#include <linux/module.h>
-
-#include <linux/blkdev.h>
-#include <linux/fs.h>
-#include <linux/buffer_head.h>
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/stat.h>
-#include <linux/vfs.h>
-#include <linux/fs_context.h>
-
-#include "vxfs.h"
-#include "vxfs_extern.h"
-#include "vxfs_dir.h"
-#include "vxfs_inode.h"
-
-
-MODULE_AUTHOR("Christoph Hellwig, Krzysztof Blaszkowski");
-MODULE_DESCRIPTION("Veritas Filesystem (VxFS) driver");
-MODULE_LICENSE("Dual BSD/GPL");
-
-static struct kmem_cache *vxfs_inode_cachep;
-
-/**
- * vxfs_put_super - free superblock resources
- * @sbp: VFS superblock.
- *
- * Description:
- * vxfs_put_super frees all resources allocated for @sbp
- * after the last instance of the filesystem is unmounted.
- */
-
-static void
-vxfs_put_super(struct super_block *sbp)
-{
- struct vxfs_sb_info *infp = VXFS_SBI(sbp);
-
- iput(infp->vsi_fship);
- iput(infp->vsi_ilist);
- iput(infp->vsi_stilist);
-
- brelse(infp->vsi_bp);
- kfree(infp);
-}
-
-/**
- * vxfs_statfs - get filesystem information
- * @dentry: VFS dentry to locate superblock
- * @bufp: output buffer
- *
- * Description:
- * vxfs_statfs fills the statfs buffer @bufp with information
- * about the filesystem described by @dentry.
- *
- * Returns:
- * Zero.
- *
- * Locking:
- * No locks held.
- *
- * Notes:
- * This is everything but complete...
- */
-static int
-vxfs_statfs(struct dentry *dentry, struct kstatfs *bufp)
-{
- struct vxfs_sb_info *infp = VXFS_SBI(dentry->d_sb);
- struct vxfs_sb *raw_sb = infp->vsi_raw;
- u64 id = huge_encode_dev(dentry->d_sb->s_bdev->bd_dev);
-
- bufp->f_type = VXFS_SUPER_MAGIC;
- bufp->f_bsize = dentry->d_sb->s_blocksize;
- bufp->f_blocks = fs32_to_cpu(infp, raw_sb->vs_dsize);
- bufp->f_bfree = fs32_to_cpu(infp, raw_sb->vs_free);
- bufp->f_bavail = 0;
- bufp->f_files = 0;
- bufp->f_ffree = fs32_to_cpu(infp, raw_sb->vs_ifree);
- bufp->f_fsid = u64_to_fsid(id);
- bufp->f_namelen = VXFS_NAMELEN;
-
- return 0;
-}
-
-static int vxfs_reconfigure(struct fs_context *fc)
-{
- sync_filesystem(fc->root->d_sb);
- fc->sb_flags |= SB_RDONLY;
- return 0;
-}
-
-static struct inode *vxfs_alloc_inode(struct super_block *sb)
-{
- struct vxfs_inode_info *vi;
-
- vi = alloc_inode_sb(sb, vxfs_inode_cachep, GFP_KERNEL);
- if (!vi)
- return NULL;
- inode_init_once(&vi->vfs_inode);
- return &vi->vfs_inode;
-}
-
-static void vxfs_free_inode(struct inode *inode)
-{
- kmem_cache_free(vxfs_inode_cachep, VXFS_INO(inode));
-}
-
-static const struct super_operations vxfs_super_ops = {
- .alloc_inode = vxfs_alloc_inode,
- .free_inode = vxfs_free_inode,
- .evict_inode = vxfs_evict_inode,
- .put_super = vxfs_put_super,
- .statfs = vxfs_statfs,
-};
-
-static int vxfs_try_sb_magic(struct super_block *sbp, struct fs_context *fc,
- unsigned blk, __fs32 magic)
-{
- struct buffer_head *bp;
- struct vxfs_sb *rsbp;
- struct vxfs_sb_info *infp = VXFS_SBI(sbp);
- int silent = fc->sb_flags & SB_SILENT;
- int rc = -ENOMEM;
-
- bp = sb_bread(sbp, blk);
- do {
- if (!bp || !buffer_mapped(bp)) {
- if (!silent) {
- warnf(fc,
- "vxfs: unable to read disk superblock at %u",
- blk);
- }
- break;
- }
-
- rc = -EINVAL;
- rsbp = (struct vxfs_sb *)bp->b_data;
- if (rsbp->vs_magic != magic) {
- if (!silent)
- infof(fc,
- "vxfs: WRONG superblock magic %08x at %u",
- rsbp->vs_magic, blk);
- break;
- }
-
- rc = 0;
- infp->vsi_raw = rsbp;
- infp->vsi_bp = bp;
- } while (0);
-
- if (rc) {
- infp->vsi_raw = NULL;
- infp->vsi_bp = NULL;
- brelse(bp);
- }
-
- return rc;
-}
-
-/**
- * vxfs_fill_super - read superblock into memory and initialize filesystem
- * @sbp: VFS superblock (to fill)
- * @fc: filesytem context
- *
- * Description:
- * We are called on the first mount of a filesystem to read the
- * superblock into memory and do some basic setup.
- *
- * Returns:
- * The superblock on success, else %NULL.
- *
- * Locking:
- * We are under @sbp->s_lock.
- */
-static int vxfs_fill_super(struct super_block *sbp, struct fs_context *fc)
-{
- struct vxfs_sb_info *infp;
- struct vxfs_sb *rsbp;
- u_long bsize;
- struct inode *root;
- int ret = -EINVAL;
- int silent = fc->sb_flags & SB_SILENT;
- u32 j;
-
- sbp->s_flags |= SB_RDONLY;
-
- infp = kzalloc_obj(*infp);
- if (!infp) {
- warnf(fc, "vxfs: unable to allocate incore superblock");
- return -ENOMEM;
- }
-
- bsize = sb_min_blocksize(sbp, BLOCK_SIZE);
- if (!bsize) {
- warnf(fc, "vxfs: unable to set blocksize");
- goto out;
- }
-
- sbp->s_op = &vxfs_super_ops;
- sbp->s_fs_info = infp;
- sbp->s_time_min = 0;
- sbp->s_time_max = U32_MAX;
-
- if (!vxfs_try_sb_magic(sbp, fc, 1,
- (__force __fs32)cpu_to_le32(VXFS_SUPER_MAGIC))) {
- /* Unixware, x86 */
- infp->byte_order = VXFS_BO_LE;
- } else if (!vxfs_try_sb_magic(sbp, fc, 8,
- (__force __fs32)cpu_to_be32(VXFS_SUPER_MAGIC))) {
- /* HP-UX, parisc */
- infp->byte_order = VXFS_BO_BE;
- } else {
- if (!silent)
- infof(fc, "vxfs: can't find superblock.");
- goto out;
- }
-
- rsbp = infp->vsi_raw;
- j = fs32_to_cpu(infp, rsbp->vs_version);
- if ((j < 2 || j > 4) && !silent) {
- infof(fc, "vxfs: unsupported VxFS version (%d)", j);
- goto out;
- }
-
-#ifdef DIAGNOSTIC
- printk(KERN_DEBUG "vxfs: supported VxFS version (%d)\n", j);
- printk(KERN_DEBUG "vxfs: blocksize: %d\n",
- fs32_to_cpu(infp, rsbp->vs_bsize));
-#endif
-
- sbp->s_magic = fs32_to_cpu(infp, rsbp->vs_magic);
-
- infp->vsi_oltext = fs32_to_cpu(infp, rsbp->vs_oltext[0]);
- infp->vsi_oltsize = fs32_to_cpu(infp, rsbp->vs_oltsize);
-
- j = fs32_to_cpu(infp, rsbp->vs_bsize);
- if (!sb_set_blocksize(sbp, j)) {
- warnf(fc, "vxfs: unable to set final block size");
- goto out;
- }
-
- if (vxfs_read_olt(sbp, bsize)) {
- warnf(fc, "vxfs: unable to read olt");
- goto out;
- }
-
- if (vxfs_read_fshead(sbp)) {
- warnf(fc, "vxfs: unable to read fshead");
- goto out;
- }
-
- root = vxfs_iget(sbp, VXFS_ROOT_INO);
- if (IS_ERR(root)) {
- ret = PTR_ERR(root);
- goto out;
- }
- sbp->s_root = d_make_root(root);
- if (!sbp->s_root) {
- warnf(fc, "vxfs: unable to get root dentry.");
- goto out_free_ilist;
- }
-
- return 0;
-
-out_free_ilist:
- iput(infp->vsi_fship);
- iput(infp->vsi_ilist);
- iput(infp->vsi_stilist);
-out:
- brelse(infp->vsi_bp);
- kfree(infp);
- return ret;
-}
-
-/*
- * The usual module blurb.
- */
-static int vxfs_get_tree(struct fs_context *fc)
-{
- return get_tree_bdev(fc, vxfs_fill_super);
-}
-
-static const struct fs_context_operations vxfs_context_ops = {
- .get_tree = vxfs_get_tree,
- .reconfigure = vxfs_reconfigure,
-};
-
-static int vxfs_init_fs_context(struct fs_context *fc)
-{
- fc->ops = &vxfs_context_ops;
-
- return 0;
-}
-
-static struct file_system_type vxfs_fs_type = {
- .owner = THIS_MODULE,
- .name = "vxfs",
- .kill_sb = kill_block_super,
- .fs_flags = FS_REQUIRES_DEV,
- .init_fs_context = vxfs_init_fs_context,
-};
-MODULE_ALIAS_FS("vxfs"); /* makes mount -t vxfs autoload the module */
-MODULE_ALIAS("vxfs");
-
-static int __init
-vxfs_init(void)
-{
- int rv;
-
- vxfs_inode_cachep = kmem_cache_create_usercopy("vxfs_inode",
- sizeof(struct vxfs_inode_info), 0,
- SLAB_RECLAIM_ACCOUNT,
- offsetof(struct vxfs_inode_info, vii_immed.vi_immed),
- sizeof_field(struct vxfs_inode_info,
- vii_immed.vi_immed),
- NULL);
- if (!vxfs_inode_cachep)
- return -ENOMEM;
- rv = register_filesystem(&vxfs_fs_type);
- if (rv < 0)
- kmem_cache_destroy(vxfs_inode_cachep);
- return rv;
-}
-
-static void __exit
-vxfs_cleanup(void)
-{
- unregister_filesystem(&vxfs_fs_type);
- /*
- * Make sure all delayed rcu free inodes are flushed before we
- * destroy cache.
- */
- rcu_barrier();
- kmem_cache_destroy(vxfs_inode_cachep);
-}
-
-module_init(vxfs_init);
-module_exit(vxfs_cleanup);
projects / thirdparty / linux.git / commitdiff
