linux 2.6.16.38 w/ vs2.0.3-rc1
[linux-2.6.git] / fs / xfs / linux-2.6 / xfs_super.c
index 4a79c7f..92d8ba6 100644 (file)
 #include <linux/writeback.h>
 #include <linux/kthread.h>
 
-STATIC struct quotactl_ops xfs_quotactl_operations;
-STATIC struct super_operations xfs_super_operations;
+STATIC struct quotactl_ops linvfs_qops;
+STATIC struct super_operations linvfs_sops;
 STATIC kmem_zone_t *xfs_vnode_zone;
 STATIC kmem_zone_t *xfs_ioend_zone;
 mempool_t *xfs_ioend_pool;
 
 STATIC struct xfs_mount_args *
 xfs_args_allocate(
-       struct super_block      *sb,
-       int                     silent)
+       struct super_block      *sb)
 {
        struct xfs_mount_args   *args;
 
@@ -77,12 +76,14 @@ xfs_args_allocate(
        strncpy(args->fsname, sb->s_id, MAXNAMELEN);
 
        /* Copy the already-parsed mount(2) flags we're interested in */
+       if (sb->s_flags & MS_NOATIME)
+               args->flags |= XFSMNT_NOATIME;
        if (sb->s_flags & MS_DIRSYNC)
                args->flags |= XFSMNT_DIRSYNC;
        if (sb->s_flags & MS_SYNCHRONOUS)
                args->flags |= XFSMNT_WSYNC;
-       if (silent)
-               args->flags |= XFSMNT_QUIET;
+
+       /* Default to 32 bit inodes on Linux all the time */
        args->flags |= XFSMNT_32BITINODES;
 
        return args;
@@ -128,21 +129,21 @@ xfs_set_inodeops(
 {
        switch (inode->i_mode & S_IFMT) {
        case S_IFREG:
-               inode->i_op = &xfs_inode_operations;
-               inode->i_fop = &xfs_file_operations;
-               inode->i_mapping->a_ops = &xfs_address_space_operations;
+               inode->i_op = &linvfs_file_inode_operations;
+               inode->i_fop = &linvfs_file_operations;
+               inode->i_mapping->a_ops = &linvfs_aops;
                break;
        case S_IFDIR:
-               inode->i_op = &xfs_dir_inode_operations;
-               inode->i_fop = &xfs_dir_file_operations;
+               inode->i_op = &linvfs_dir_inode_operations;
+               inode->i_fop = &linvfs_dir_operations;
                break;
        case S_IFLNK:
-               inode->i_op = &xfs_symlink_inode_operations;
+               inode->i_op = &linvfs_symlink_inode_operations;
                if (inode->i_blocks)
-                       inode->i_mapping->a_ops = &xfs_address_space_operations;
+                       inode->i_mapping->a_ops = &linvfs_aops;
                break;
        default:
-               inode->i_op = &xfs_inode_operations;
+               inode->i_op = &linvfs_file_inode_operations;
                init_special_inode(inode, inode->i_mode, inode->i_rdev);
                break;
        }
@@ -154,7 +155,7 @@ xfs_revalidate_inode(
        vnode_t                 *vp,
        xfs_inode_t             *ip)
 {
-       struct inode            *inode = vn_to_inode(vp);
+       struct inode            *inode = LINVFS_GET_IP(vp);
 
        inode->i_mode   = ip->i_d.di_mode;
        inode->i_nlink  = ip->i_d.di_nlink;
@@ -220,7 +221,7 @@ xfs_initialize_vnode(
        int                     unlock)
 {
        xfs_inode_t             *ip = XFS_BHVTOI(inode_bhv);
-       struct inode            *inode = vn_to_inode(vp);
+       struct inode            *inode = LINVFS_GET_IP(vp);
 
        if (!inode_bhv->bd_vobj) {
                vp->v_vfsp = bhvtovfs(bdp);
@@ -238,7 +239,7 @@ xfs_initialize_vnode(
        if (ip->i_d.di_mode != 0 && unlock && (inode->i_state & I_NEW)) {
                xfs_revalidate_inode(XFS_BHVTOM(bdp), vp, ip);
                xfs_set_inodeops(inode);
-
+       
                ip->i_flags &= ~XFS_INEW;
                barrier();
 
@@ -342,42 +343,43 @@ xfs_blkdev_issue_flush(
 }
 
 STATIC struct inode *
-xfs_fs_alloc_inode(
+linvfs_alloc_inode(
        struct super_block      *sb)
 {
        vnode_t                 *vp;
 
-       vp = kmem_zone_alloc(xfs_vnode_zone, KM_SLEEP);
-       if (unlikely(!vp))
+       vp = kmem_cache_alloc(xfs_vnode_zone, kmem_flags_convert(KM_SLEEP));
+       if (!vp)
                return NULL;
-       return vn_to_inode(vp);
+       return LINVFS_GET_IP(vp);
 }
 
 STATIC void
-xfs_fs_destroy_inode(
+linvfs_destroy_inode(
        struct inode            *inode)
 {
-       kmem_zone_free(xfs_vnode_zone, vn_from_inode(inode));
+       kmem_zone_free(xfs_vnode_zone, LINVFS_GET_VP(inode));
 }
 
 STATIC void
-xfs_fs_inode_init_once(
-       void                    *vnode,
-       kmem_zone_t             *zonep,
+linvfs_inode_init_once(
+       void                    *data,
+       kmem_cache_t            *cachep,
        unsigned long           flags)
 {
+       vnode_t                 *vp = (vnode_t *)data;
+
        if ((flags & (SLAB_CTOR_VERIFY|SLAB_CTOR_CONSTRUCTOR)) ==
-                     SLAB_CTOR_CONSTRUCTOR)
-               inode_init_once(vn_to_inode((vnode_t *)vnode));
+           SLAB_CTOR_CONSTRUCTOR)
+               inode_init_once(LINVFS_GET_IP(vp));
 }
 
 STATIC int
-xfs_init_zones(void)
+linvfs_init_zones(void)
 {
-       xfs_vnode_zone = kmem_zone_init_flags(sizeof(vnode_t), "xfs_vnode_t",
-                                       KM_ZONE_HWALIGN | KM_ZONE_RECLAIM |
-                                       KM_ZONE_SPREAD,
-                                       xfs_fs_inode_init_once);
+       xfs_vnode_zone = kmem_cache_create("xfs_vnode",
+                               sizeof(vnode_t), 0, SLAB_RECLAIM_ACCOUNT,
+                               linvfs_inode_init_once, NULL);
        if (!xfs_vnode_zone)
                goto out;
 
@@ -385,12 +387,15 @@ xfs_init_zones(void)
        if (!xfs_ioend_zone)
                goto out_destroy_vnode_zone;
 
-       xfs_ioend_pool = mempool_create_slab_pool(4 * MAX_BUF_PER_PAGE,
-                                                 xfs_ioend_zone);
+       xfs_ioend_pool = mempool_create(4 * MAX_BUF_PER_PAGE,
+                       mempool_alloc_slab, mempool_free_slab,
+                       xfs_ioend_zone);
        if (!xfs_ioend_pool)
                goto out_free_ioend_zone;
+
        return 0;
 
+
  out_free_ioend_zone:
        kmem_zone_destroy(xfs_ioend_zone);
  out_destroy_vnode_zone:
@@ -400,7 +405,7 @@ xfs_init_zones(void)
 }
 
 STATIC void
-xfs_destroy_zones(void)
+linvfs_destroy_zones(void)
 {
        mempool_destroy(xfs_ioend_pool);
        kmem_zone_destroy(xfs_vnode_zone);
@@ -411,14 +416,14 @@ xfs_destroy_zones(void)
  * Attempt to flush the inode, this will actually fail
  * if the inode is pinned, but we dirty the inode again
  * at the point when it is unpinned after a log write,
- * since this is when the inode itself becomes flushable.
+ * since this is when the inode itself becomes flushable. 
  */
 STATIC int
-xfs_fs_write_inode(
+linvfs_write_inode(
        struct inode            *inode,
        int                     sync)
 {
-       vnode_t                 *vp = vn_from_inode(inode);
+       vnode_t                 *vp = LINVFS_GET_VP(inode);
        int                     error = 0, flags = FLUSH_INODE;
 
        if (vp) {
@@ -438,13 +443,13 @@ xfs_fs_write_inode(
 }
 
 STATIC void
-xfs_fs_clear_inode(
+linvfs_clear_inode(
        struct inode            *inode)
 {
-       vnode_t                 *vp = vn_from_inode(inode);
+       vnode_t                 *vp = LINVFS_GET_VP(inode);
        int                     error, cache;
 
-       vn_trace_entry(vp, __FUNCTION__, (inst_t *)__return_address);
+       vn_trace_entry(vp, "clear_inode", (inst_t *)__return_address);
 
        XFS_STATS_INC(vn_rele);
        XFS_STATS_INC(vn_remove);
@@ -520,7 +525,7 @@ void
 xfs_flush_inode(
        xfs_inode_t     *ip)
 {
-       struct inode    *inode = vn_to_inode(XFS_ITOV(ip));
+       struct inode    *inode = LINVFS_GET_IP(XFS_ITOV(ip));
        struct vfs      *vfs = XFS_MTOVFS(ip->i_mount);
 
        igrab(inode);
@@ -545,7 +550,7 @@ void
 xfs_flush_device(
        xfs_inode_t     *ip)
 {
-       struct inode    *inode = vn_to_inode(XFS_ITOV(ip));
+       struct inode    *inode = LINVFS_GET_IP(XFS_ITOV(ip));
        struct vfs      *vfs = XFS_MTOVFS(ip->i_mount);
 
        igrab(inode);
@@ -554,7 +559,7 @@ xfs_flush_device(
        xfs_log_force(ip->i_mount, (xfs_lsn_t)0, XFS_LOG_FORCE|XFS_LOG_SYNC);
 }
 
-#define SYNCD_FLAGS    (SYNC_FSDATA|SYNC_BDFLUSH|SYNC_ATTR|SYNC_REFCACHE)
+#define SYNCD_FLAGS    (SYNC_FSDATA|SYNC_BDFLUSH|SYNC_ATTR)
 STATIC void
 vfs_sync_worker(
        vfs_t           *vfsp,
@@ -617,7 +622,7 @@ xfssyncd(
 }
 
 STATIC int
-xfs_fs_start_syncd(
+linvfs_start_syncd(
        vfs_t                   *vfsp)
 {
        vfsp->vfs_sync_work.w_syncer = vfs_sync_worker;
@@ -629,20 +634,20 @@ xfs_fs_start_syncd(
 }
 
 STATIC void
-xfs_fs_stop_syncd(
+linvfs_stop_syncd(
        vfs_t                   *vfsp)
 {
        kthread_stop(vfsp->vfs_sync_task);
 }
 
 STATIC void
-xfs_fs_put_super(
+linvfs_put_super(
        struct super_block      *sb)
 {
-       vfs_t                   *vfsp = vfs_from_sb(sb);
+       vfs_t                   *vfsp = LINVFS_GET_VFS(sb);
        int                     error;
 
-       xfs_fs_stop_syncd(vfsp);
+       linvfs_stop_syncd(vfsp);
        VFS_SYNC(vfsp, SYNC_ATTR|SYNC_DELWRI, NULL, error);
        if (!error)
                VFS_UNMOUNT(vfsp, 0, NULL, error);
@@ -656,10 +661,10 @@ xfs_fs_put_super(
 }
 
 STATIC void
-xfs_fs_write_super(
+linvfs_write_super(
        struct super_block      *sb)
 {
-       vfs_t                   *vfsp = vfs_from_sb(sb);
+       vfs_t                   *vfsp = LINVFS_GET_VFS(sb);
        int                     error;
 
        if (sb->s_flags & MS_RDONLY) {
@@ -672,11 +677,11 @@ xfs_fs_write_super(
 }
 
 STATIC int
-xfs_fs_sync_super(
+linvfs_sync_super(
        struct super_block      *sb,
        int                     wait)
 {
-       vfs_t           *vfsp = vfs_from_sb(sb);
+       vfs_t           *vfsp = LINVFS_GET_VFS(sb);
        int             error;
        int             flags = SYNC_FSDATA;
 
@@ -711,11 +716,11 @@ xfs_fs_sync_super(
 }
 
 STATIC int
-xfs_fs_statfs(
+linvfs_statfs(
        struct super_block      *sb,
        struct kstatfs          *statp)
 {
-       vfs_t                   *vfsp = vfs_from_sb(sb);
+       vfs_t                   *vfsp = LINVFS_GET_VFS(sb);
        int                     error;
 
        VFS_STATVFS(vfsp, statp, NULL, error);
@@ -723,13 +728,13 @@ xfs_fs_statfs(
 }
 
 STATIC int
-xfs_fs_remount(
+linvfs_remount(
        struct super_block      *sb,
        int                     *flags,
        char                    *options)
 {
-       vfs_t                   *vfsp = vfs_from_sb(sb);
-       struct xfs_mount_args   *args = xfs_args_allocate(sb, 0);
+       vfs_t                   *vfsp = LINVFS_GET_VFS(sb);
+       struct xfs_mount_args   *args = xfs_args_allocate(sb);
        int                     error;
 
        VFS_PARSEARGS(vfsp, options, args, 1, error);
@@ -746,18 +751,18 @@ xfs_fs_remount(
 }
 
 STATIC void
-xfs_fs_lockfs(
+linvfs_freeze_fs(
        struct super_block      *sb)
 {
-       VFS_FREEZE(vfs_from_sb(sb));
+       VFS_FREEZE(LINVFS_GET_VFS(sb));
 }
 
 STATIC int
-xfs_fs_show_options(
+linvfs_show_options(
        struct seq_file         *m,
        struct vfsmount         *mnt)
 {
-       struct vfs              *vfsp = vfs_from_sb(mnt->mnt_sb);
+       struct vfs              *vfsp = LINVFS_GET_VFS(mnt->mnt_sb);
        int                     error;
 
        VFS_SHOWARGS(vfsp, m, error);
@@ -765,11 +770,11 @@ xfs_fs_show_options(
 }
 
 STATIC int
-xfs_fs_quotasync(
+linvfs_quotasync(
        struct super_block      *sb,
        int                     type)
 {
-       struct vfs              *vfsp = vfs_from_sb(sb);
+       struct vfs              *vfsp = LINVFS_GET_VFS(sb);
        int                     error;
 
        VFS_QUOTACTL(vfsp, Q_XQUOTASYNC, 0, (caddr_t)NULL, error);
@@ -777,11 +782,11 @@ xfs_fs_quotasync(
 }
 
 STATIC int
-xfs_fs_getxstate(
+linvfs_getxstate(
        struct super_block      *sb,
        struct fs_quota_stat    *fqs)
 {
-       struct vfs              *vfsp = vfs_from_sb(sb);
+       struct vfs              *vfsp = LINVFS_GET_VFS(sb);
        int                     error;
 
        VFS_QUOTACTL(vfsp, Q_XGETQSTAT, 0, (caddr_t)fqs, error);
@@ -789,12 +794,12 @@ xfs_fs_getxstate(
 }
 
 STATIC int
-xfs_fs_setxstate(
+linvfs_setxstate(
        struct super_block      *sb,
        unsigned int            flags,
        int                     op)
 {
-       struct vfs              *vfsp = vfs_from_sb(sb);
+       struct vfs              *vfsp = LINVFS_GET_VFS(sb);
        int                     error;
 
        VFS_QUOTACTL(vfsp, op, 0, (caddr_t)&flags, error);
@@ -802,13 +807,13 @@ xfs_fs_setxstate(
 }
 
 STATIC int
-xfs_fs_getxquota(
+linvfs_getxquota(
        struct super_block      *sb,
        int                     type,
        qid_t                   id,
        struct fs_disk_quota    *fdq)
 {
-       struct vfs              *vfsp = vfs_from_sb(sb);
+       struct vfs              *vfsp = LINVFS_GET_VFS(sb);
        int                     error, getmode;
 
        getmode = (type == USRQUOTA) ? Q_XGETQUOTA :
@@ -818,13 +823,13 @@ xfs_fs_getxquota(
 }
 
 STATIC int
-xfs_fs_setxquota(
+linvfs_setxquota(
        struct super_block      *sb,
        int                     type,
        qid_t                   id,
        struct fs_disk_quota    *fdq)
 {
-       struct vfs              *vfsp = vfs_from_sb(sb);
+       struct vfs              *vfsp = LINVFS_GET_VFS(sb);
        int                     error, setmode;
 
        setmode = (type == USRQUOTA) ? Q_XSETQLIM :
@@ -834,17 +839,21 @@ xfs_fs_setxquota(
 }
 
 STATIC int
-xfs_fs_fill_super(
+linvfs_fill_super(
        struct super_block      *sb,
        void                    *data,
        int                     silent)
 {
        vnode_t                 *rootvp;
-       struct vfs              *vfsp = vfs_allocate(sb);
-       struct xfs_mount_args   *args = xfs_args_allocate(sb, silent);
+       struct vfs              *vfsp = vfs_allocate();
+       struct xfs_mount_args   *args = xfs_args_allocate(sb);
        struct kstatfs          statvfs;
        int                     error, error2;
 
+       vfsp->vfs_super = sb;
+       LINVFS_SET_VFS(sb, vfsp);
+       if (sb->s_flags & MS_RDONLY)
+               vfsp->vfs_flag |= VFS_RDONLY;
        bhv_insert_all_vfsops(vfsp);
 
        VFS_PARSEARGS(vfsp, (char *)data, args, 0, error);
@@ -855,10 +864,10 @@ xfs_fs_fill_super(
 
        sb_min_blocksize(sb, BBSIZE);
 #ifdef CONFIG_XFS_EXPORT
-       sb->s_export_op = &xfs_export_operations;
+       sb->s_export_op = &linvfs_export_ops;
 #endif
-       sb->s_qcop = &xfs_quotactl_operations;
-       sb->s_op = &xfs_super_operations;
+       sb->s_qcop = &linvfs_qops;
+       sb->s_op = &linvfs_sops;
 
        VFS_MOUNT(vfsp, args, NULL, error);
        if (error) {
@@ -882,7 +891,7 @@ xfs_fs_fill_super(
        if (error)
                goto fail_unmount;
 
-       sb->s_root = d_alloc_root(vn_to_inode(rootvp));
+       sb->s_root = d_alloc_root(LINVFS_GET_IP(rootvp));
        if (!sb->s_root) {
                error = ENOMEM;
                goto fail_vnrele;
@@ -891,7 +900,7 @@ xfs_fs_fill_super(
                error = EINVAL;
                goto fail_vnrele;
        }
-       if ((error = xfs_fs_start_syncd(vfsp)))
+       if ((error = linvfs_start_syncd(vfsp)))
                goto fail_vnrele;
        vn_trace_exit(rootvp, __FUNCTION__, (inst_t *)__return_address);
 
@@ -916,41 +925,41 @@ fail_vfsop:
 }
 
 STATIC struct super_block *
-xfs_fs_get_sb(
+linvfs_get_sb(
        struct file_system_type *fs_type,
        int                     flags,
        const char              *dev_name,
        void                    *data)
 {
-       return get_sb_bdev(fs_type, flags, dev_name, data, xfs_fs_fill_super);
-}
-
-STATIC struct super_operations xfs_super_operations = {
-       .alloc_inode            = xfs_fs_alloc_inode,
-       .destroy_inode          = xfs_fs_destroy_inode,
-       .write_inode            = xfs_fs_write_inode,
-       .clear_inode            = xfs_fs_clear_inode,
-       .put_super              = xfs_fs_put_super,
-       .write_super            = xfs_fs_write_super,
-       .sync_fs                = xfs_fs_sync_super,
-       .write_super_lockfs     = xfs_fs_lockfs,
-       .statfs                 = xfs_fs_statfs,
-       .remount_fs             = xfs_fs_remount,
-       .show_options           = xfs_fs_show_options,
+       return get_sb_bdev(fs_type, flags, dev_name, data, linvfs_fill_super);
+}
+
+STATIC struct super_operations linvfs_sops = {
+       .alloc_inode            = linvfs_alloc_inode,
+       .destroy_inode          = linvfs_destroy_inode,
+       .write_inode            = linvfs_write_inode,
+       .clear_inode            = linvfs_clear_inode,
+       .put_super              = linvfs_put_super,
+       .write_super            = linvfs_write_super,
+       .sync_fs                = linvfs_sync_super,
+       .write_super_lockfs     = linvfs_freeze_fs,
+       .statfs                 = linvfs_statfs,
+       .remount_fs             = linvfs_remount,
+       .show_options           = linvfs_show_options,
 };
 
-STATIC struct quotactl_ops xfs_quotactl_operations = {
-       .quota_sync             = xfs_fs_quotasync,
-       .get_xstate             = xfs_fs_getxstate,
-       .set_xstate             = xfs_fs_setxstate,
-       .get_xquota             = xfs_fs_getxquota,
-       .set_xquota             = xfs_fs_setxquota,
+STATIC struct quotactl_ops linvfs_qops = {
+       .quota_sync             = linvfs_quotasync,
+       .get_xstate             = linvfs_getxstate,
+       .set_xstate             = linvfs_setxstate,
+       .get_xquota             = linvfs_getxquota,
+       .set_xquota             = linvfs_setxquota,
 };
 
 STATIC struct file_system_type xfs_fs_type = {
        .owner                  = THIS_MODULE,
        .name                   = "xfs",
-       .get_sb                 = xfs_fs_get_sb,
+       .get_sb                 = linvfs_get_sb,
        .kill_sb                = kill_block_super,
        .fs_flags               = FS_REQUIRES_DEV,
 };
@@ -971,7 +980,7 @@ init_xfs_fs( void )
 
        ktrace_init(64);
 
-       error = xfs_init_zones();
+       error = linvfs_init_zones();
        if (error < 0)
                goto undo_zones;
 
@@ -987,13 +996,14 @@ init_xfs_fs( void )
        error = register_filesystem(&xfs_fs_type);
        if (error)
                goto undo_register;
+       XFS_DM_INIT(&xfs_fs_type);
        return 0;
 
 undo_register:
        xfs_buf_terminate();
 
 undo_buffers:
-       xfs_destroy_zones();
+       linvfs_destroy_zones();
 
 undo_zones:
        return error;
@@ -1003,10 +1013,11 @@ STATIC void __exit
 exit_xfs_fs( void )
 {
        vfs_exitquota();
+       XFS_DM_EXIT(&xfs_fs_type);
        unregister_filesystem(&xfs_fs_type);
        xfs_cleanup();
        xfs_buf_terminate();
-       xfs_destroy_zones();
+       linvfs_destroy_zones();
        ktrace_uninit();
 }