Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6
[pandora-kernel.git] / fs / hpfs / super.c
index 501ea86..98580a3 100644 (file)
 
 /* Mark the filesystem dirty, so that chkdsk checks it when os/2 booted */
 
-static void mark_dirty(struct super_block *s)
+static void mark_dirty(struct super_block *s, int remount)
 {
-       if (hpfs_sb(s)->sb_chkdsk && !(s->s_flags & MS_RDONLY)) {
+       if (hpfs_sb(s)->sb_chkdsk && (remount || !(s->s_flags & MS_RDONLY))) {
                struct buffer_head *bh;
                struct hpfs_spare_block *sb;
                if ((sb = hpfs_map_sector(s, 17, &bh, 0))) {
                        sb->dirty = 1;
                        sb->old_wrote = 0;
                        mark_buffer_dirty(bh);
+                       sync_dirty_buffer(bh);
                        brelse(bh);
                }
        }
@@ -40,10 +41,12 @@ static void unmark_dirty(struct super_block *s)
        struct buffer_head *bh;
        struct hpfs_spare_block *sb;
        if (s->s_flags & MS_RDONLY) return;
+       sync_blockdev(s->s_bdev);
        if ((sb = hpfs_map_sector(s, 17, &bh, 0))) {
                sb->dirty = hpfs_sb(s)->sb_chkdsk > 1 - hpfs_sb(s)->sb_was_error;
                sb->old_wrote = hpfs_sb(s)->sb_chkdsk >= 2 && !hpfs_sb(s)->sb_was_error;
                mark_buffer_dirty(bh);
+               sync_dirty_buffer(bh);
                brelse(bh);
        }
 }
@@ -63,13 +66,13 @@ void hpfs_error(struct super_block *s, const char *fmt, ...)
        if (!hpfs_sb(s)->sb_was_error) {
                if (hpfs_sb(s)->sb_err == 2) {
                        printk("; crashing the system because you wanted it\n");
-                       mark_dirty(s);
+                       mark_dirty(s, 0);
                        panic("HPFS panic");
                } else if (hpfs_sb(s)->sb_err == 1) {
                        if (s->s_flags & MS_RDONLY) printk("; already mounted read-only\n");
                        else {
                                printk("; remounting read-only\n");
-                               mark_dirty(s);
+                               mark_dirty(s, 0);
                                s->s_flags |= MS_RDONLY;
                        }
                } else if (s->s_flags & MS_RDONLY) printk("; going on - but anything won't be destroyed because it's read-only\n");
@@ -102,9 +105,12 @@ static void hpfs_put_super(struct super_block *s)
 {
        struct hpfs_sb_info *sbi = hpfs_sb(s);
 
+       hpfs_lock(s);
+       unmark_dirty(s);
+       hpfs_unlock(s);
+
        kfree(sbi->sb_cp_table);
        kfree(sbi->sb_bmp_dir);
-       unmark_dirty(s);
        s->s_fs_info = NULL;
        kfree(sbi);
 }
@@ -129,7 +135,7 @@ static unsigned count_bitmaps(struct super_block *s)
        n_bands = (hpfs_sb(s)->sb_fs_size + 0x3fff) >> 14;
        count = 0;
        for (n = 0; n < n_bands; n++)
-               count += hpfs_count_one_bitmap(s, hpfs_sb(s)->sb_bmp_dir[n]);
+               count += hpfs_count_one_bitmap(s, le32_to_cpu(hpfs_sb(s)->sb_bmp_dir[n]));
        return count;
 }
 
@@ -188,8 +194,6 @@ static void init_once(void *foo)
 {
        struct hpfs_inode_info *ei = (struct hpfs_inode_info *) foo;
 
-       mutex_init(&ei->i_mutex);
-       mutex_init(&ei->i_parent_mutex);
        inode_init_once(&ei->vfs_inode);
 }
 
@@ -218,7 +222,6 @@ static void destroy_inodecache(void)
 
 enum {
        Opt_help, Opt_uid, Opt_gid, Opt_umask, Opt_case_lower, Opt_case_asis,
-       Opt_conv_binary, Opt_conv_text, Opt_conv_auto,
        Opt_check_none, Opt_check_normal, Opt_check_strict,
        Opt_err_cont, Opt_err_ro, Opt_err_panic,
        Opt_eas_no, Opt_eas_ro, Opt_eas_rw,
@@ -233,9 +236,6 @@ static const match_table_t tokens = {
        {Opt_umask, "umask=%o"},
        {Opt_case_lower, "case=lower"},
        {Opt_case_asis, "case=asis"},
-       {Opt_conv_binary, "conv=binary"},
-       {Opt_conv_text, "conv=text"},
-       {Opt_conv_auto, "conv=auto"},
        {Opt_check_none, "check=none"},
        {Opt_check_normal, "check=normal"},
        {Opt_check_strict, "check=strict"},
@@ -253,7 +253,7 @@ static const match_table_t tokens = {
 };
 
 static int parse_opts(char *opts, uid_t *uid, gid_t *gid, umode_t *umask,
-                     int *lowercase, int *conv, int *eas, int *chk, int *errs,
+                     int *lowercase, int *eas, int *chk, int *errs,
                      int *chkdsk, int *timeshift)
 {
        char *p;
@@ -295,15 +295,6 @@ static int parse_opts(char *opts, uid_t *uid, gid_t *gid, umode_t *umask,
                case Opt_case_asis:
                        *lowercase = 0;
                        break;
-               case Opt_conv_binary:
-                       *conv = CONV_BINARY;
-                       break;
-               case Opt_conv_text:
-                       *conv = CONV_TEXT;
-                       break;
-               case Opt_conv_auto:
-                       *conv = CONV_AUTO;
-                       break;
                case Opt_check_none:
                        *chk = 0;
                        break;
@@ -370,9 +361,6 @@ HPFS filesystem options:\n\
       umask=xxx         set mode of files that don't have mode specified in eas\n\
       case=lower        lowercase all files\n\
       case=asis         do not lowercase files (default)\n\
-      conv=binary       do not convert CR/LF -> LF (default)\n\
-      conv=auto         convert only files with known text extensions\n\
-      conv=text         convert all files\n\
       check=none        no fs checks - kernel may crash on corrupted filesystem\n\
       check=normal      do some checks - it should not crash (default)\n\
       check=strict      do extra time-consuming checks, used for debugging\n\
@@ -394,7 +382,7 @@ static int hpfs_remount_fs(struct super_block *s, int *flags, char *data)
        uid_t uid;
        gid_t gid;
        umode_t umask;
-       int lowercase, conv, eas, chk, errs, chkdsk, timeshift;
+       int lowercase, eas, chk, errs, chkdsk, timeshift;
        int o;
        struct hpfs_sb_info *sbi = hpfs_sb(s);
        char *new_opts = kstrdup(data, GFP_KERNEL);
@@ -405,11 +393,11 @@ static int hpfs_remount_fs(struct super_block *s, int *flags, char *data)
        lock_super(s);
        uid = sbi->sb_uid; gid = sbi->sb_gid;
        umask = 0777 & ~sbi->sb_mode;
-       lowercase = sbi->sb_lowercase; conv = sbi->sb_conv;
+       lowercase = sbi->sb_lowercase;
        eas = sbi->sb_eas; chk = sbi->sb_chk; chkdsk = sbi->sb_chkdsk;
        errs = sbi->sb_err; timeshift = sbi->sb_timeshift;
 
-       if (!(o = parse_opts(data, &uid, &gid, &umask, &lowercase, &conv,
+       if (!(o = parse_opts(data, &uid, &gid, &umask, &lowercase,
            &eas, &chk, &errs, &chkdsk, &timeshift))) {
                printk("HPFS: bad mount options.\n");
                goto out_err;
@@ -427,11 +415,11 @@ static int hpfs_remount_fs(struct super_block *s, int *flags, char *data)
 
        sbi->sb_uid = uid; sbi->sb_gid = gid;
        sbi->sb_mode = 0777 & ~umask;
-       sbi->sb_lowercase = lowercase; sbi->sb_conv = conv;
+       sbi->sb_lowercase = lowercase;
        sbi->sb_eas = eas; sbi->sb_chk = chk; sbi->sb_chkdsk = chkdsk;
        sbi->sb_err = errs; sbi->sb_timeshift = timeshift;
 
-       if (!(*flags & MS_RDONLY)) mark_dirty(s);
+       if (!(*flags & MS_RDONLY)) mark_dirty(s, 1);
 
        replace_mount_options(s, new_opts);
 
@@ -471,7 +459,7 @@ static int hpfs_fill_super(struct super_block *s, void *options, int silent)
        uid_t uid;
        gid_t gid;
        umode_t umask;
-       int lowercase, conv, eas, chk, errs, chkdsk, timeshift;
+       int lowercase, eas, chk, errs, chkdsk, timeshift;
 
        dnode_secno root_dno;
        struct hpfs_dirent *de = NULL;
@@ -490,20 +478,20 @@ static int hpfs_fill_super(struct super_block *s, void *options, int silent)
        sbi->sb_bmp_dir = NULL;
        sbi->sb_cp_table = NULL;
 
-       mutex_init(&sbi->hpfs_creation_de);
+       mutex_init(&sbi->hpfs_mutex);
+       hpfs_lock(s);
 
        uid = current_uid();
        gid = current_gid();
        umask = current_umask();
        lowercase = 0;
-       conv = CONV_BINARY;
        eas = 2;
        chk = 1;
        errs = 1;
        chkdsk = 1;
        timeshift = 0;
 
-       if (!(o = parse_opts(options, &uid, &gid, &umask, &lowercase, &conv,
+       if (!(o = parse_opts(options, &uid, &gid, &umask, &lowercase,
            &eas, &chk, &errs, &chkdsk, &timeshift))) {
                printk("HPFS: bad mount options.\n");
                goto bail0;
@@ -521,9 +509,9 @@ static int hpfs_fill_super(struct super_block *s, void *options, int silent)
        if (!(spareblock = hpfs_map_sector(s, 17, &bh2, 0))) goto bail3;
 
        /* Check magics */
-       if (/*bootblock->magic != BB_MAGIC
-           ||*/ superblock->magic != SB_MAGIC
-           || spareblock->magic != SP_MAGIC) {
+       if (/*le16_to_cpu(bootblock->magic) != BB_MAGIC
+           ||*/ le32_to_cpu(superblock->magic) != SB_MAGIC
+           || le32_to_cpu(spareblock->magic) != SP_MAGIC) {
                if (!silent) printk("HPFS: Bad magic ... probably not HPFS\n");
                goto bail4;
        }
@@ -544,19 +532,18 @@ static int hpfs_fill_super(struct super_block *s, void *options, int silent)
        s->s_op = &hpfs_sops;
        s->s_d_op = &hpfs_dentry_operations;
 
-       sbi->sb_root = superblock->root;
-       sbi->sb_fs_size = superblock->n_sectors;
-       sbi->sb_bitmaps = superblock->bitmaps;
-       sbi->sb_dirband_start = superblock->dir_band_start;
-       sbi->sb_dirband_size = superblock->n_dir_band;
-       sbi->sb_dmap = superblock->dir_band_bitmap;
+       sbi->sb_root = le32_to_cpu(superblock->root);
+       sbi->sb_fs_size = le32_to_cpu(superblock->n_sectors);
+       sbi->sb_bitmaps = le32_to_cpu(superblock->bitmaps);
+       sbi->sb_dirband_start = le32_to_cpu(superblock->dir_band_start);
+       sbi->sb_dirband_size = le32_to_cpu(superblock->n_dir_band);
+       sbi->sb_dmap = le32_to_cpu(superblock->dir_band_bitmap);
        sbi->sb_uid = uid;
        sbi->sb_gid = gid;
        sbi->sb_mode = 0777 & ~umask;
        sbi->sb_n_free = -1;
        sbi->sb_n_free_dnodes = -1;
        sbi->sb_lowercase = lowercase;
-       sbi->sb_conv = conv;
        sbi->sb_eas = eas;
        sbi->sb_chk = chk;
        sbi->sb_chkdsk = chkdsk;
@@ -568,7 +555,7 @@ static int hpfs_fill_super(struct super_block *s, void *options, int silent)
        sbi->sb_max_fwd_alloc = 0xffffff;
        
        /* Load bitmap directory */
-       if (!(sbi->sb_bmp_dir = hpfs_load_bitmap_directory(s, superblock->bitmaps)))
+       if (!(sbi->sb_bmp_dir = hpfs_load_bitmap_directory(s, le32_to_cpu(superblock->bitmaps))))
                goto bail4;
        
        /* Check for general fs errors*/
@@ -586,20 +573,20 @@ static int hpfs_fill_super(struct super_block *s, void *options, int silent)
                mark_buffer_dirty(bh2);
        }
 
-       if (spareblock->hotfixes_used || spareblock->n_spares_used) {
+       if (le32_to_cpu(spareblock->hotfixes_used) || le32_to_cpu(spareblock->n_spares_used)) {
                if (errs >= 2) {
                        printk("HPFS: Hotfixes not supported here, try chkdsk\n");
-                       mark_dirty(s);
+                       mark_dirty(s, 0);
                        goto bail4;
                }
                hpfs_error(s, "hotfixes not supported here, try chkdsk");
                if (errs == 0) printk("HPFS: Proceeding, but your filesystem will be probably corrupted by this driver...\n");
                else printk("HPFS: This driver may read bad files or crash when operating on disk with hotfixes.\n");
        }
-       if (spareblock->n_dnode_spares != spareblock->n_dnode_spares_free) {
+       if (le32_to_cpu(spareblock->n_dnode_spares) != le32_to_cpu(spareblock->n_dnode_spares_free)) {
                if (errs >= 2) {
                        printk("HPFS: Spare dnodes used, try chkdsk\n");
-                       mark_dirty(s);
+                       mark_dirty(s, 0);
                        goto bail4;
                }
                hpfs_error(s, "warning: spare dnodes used, try chkdsk");
@@ -607,26 +594,26 @@ static int hpfs_fill_super(struct super_block *s, void *options, int silent)
        }
        if (chk) {
                unsigned a;
-               if (superblock->dir_band_end - superblock->dir_band_start + 1 != superblock->n_dir_band ||
-                   superblock->dir_band_end < superblock->dir_band_start || superblock->n_dir_band > 0x4000) {
+               if (le32_to_cpu(superblock->dir_band_end) - le32_to_cpu(superblock->dir_band_start) + 1 != le32_to_cpu(superblock->n_dir_band) ||
+                   le32_to_cpu(superblock->dir_band_end) < le32_to_cpu(superblock->dir_band_start) || le32_to_cpu(superblock->n_dir_band) > 0x4000) {
                        hpfs_error(s, "dir band size mismatch: dir_band_start==%08x, dir_band_end==%08x, n_dir_band==%08x",
-                               superblock->dir_band_start, superblock->dir_band_end, superblock->n_dir_band);
+                               le32_to_cpu(superblock->dir_band_start), le32_to_cpu(superblock->dir_band_end), le32_to_cpu(superblock->n_dir_band));
                        goto bail4;
                }
                a = sbi->sb_dirband_size;
                sbi->sb_dirband_size = 0;
-               if (hpfs_chk_sectors(s, superblock->dir_band_start, superblock->n_dir_band, "dir_band") ||
-                   hpfs_chk_sectors(s, superblock->dir_band_bitmap, 4, "dir_band_bitmap") ||
-                   hpfs_chk_sectors(s, superblock->bitmaps, 4, "bitmaps")) {
-                       mark_dirty(s);
+               if (hpfs_chk_sectors(s, le32_to_cpu(superblock->dir_band_start), le32_to_cpu(superblock->n_dir_band), "dir_band") ||
+                   hpfs_chk_sectors(s, le32_to_cpu(superblock->dir_band_bitmap), 4, "dir_band_bitmap") ||
+                   hpfs_chk_sectors(s, le32_to_cpu(superblock->bitmaps), 4, "bitmaps")) {
+                       mark_dirty(s, 0);
                        goto bail4;
                }
                sbi->sb_dirband_size = a;
        } else printk("HPFS: You really don't want any checks? You are crazy...\n");
 
        /* Load code page table */
-       if (spareblock->n_code_pages)
-               if (!(sbi->sb_cp_table = hpfs_load_code_page(s, spareblock->code_page_dir)))
+       if (le32_to_cpu(spareblock->n_code_pages))
+               if (!(sbi->sb_cp_table = hpfs_load_code_page(s, le32_to_cpu(spareblock->code_page_dir))))
                        printk("HPFS: Warning: code page support is disabled\n");
 
        brelse(bh2);
@@ -655,13 +642,13 @@ static int hpfs_fill_super(struct super_block *s, void *options, int silent)
        if (!de)
                hpfs_error(s, "unable to find root dir");
        else {
-               root->i_atime.tv_sec = local_to_gmt(s, de->read_date);
+               root->i_atime.tv_sec = local_to_gmt(s, le32_to_cpu(de->read_date));
                root->i_atime.tv_nsec = 0;
-               root->i_mtime.tv_sec = local_to_gmt(s, de->write_date);
+               root->i_mtime.tv_sec = local_to_gmt(s, le32_to_cpu(de->write_date));
                root->i_mtime.tv_nsec = 0;
-               root->i_ctime.tv_sec = local_to_gmt(s, de->creation_date);
+               root->i_ctime.tv_sec = local_to_gmt(s, le32_to_cpu(de->creation_date));
                root->i_ctime.tv_nsec = 0;
-               hpfs_i(root)->i_ea_size = de->ea_size;
+               hpfs_i(root)->i_ea_size = le16_to_cpu(de->ea_size);
                hpfs_i(root)->i_parent_dir = root->i_ino;
                if (root->i_size == -1)
                        root->i_size = 2048;
@@ -669,6 +656,7 @@ static int hpfs_fill_super(struct super_block *s, void *options, int silent)
                        root->i_blocks = 5;
                hpfs_brelse4(&qbh);
        }
+       hpfs_unlock(s);
        return 0;
 
 bail4: brelse(bh2);
@@ -676,6 +664,7 @@ bail3:      brelse(bh1);
 bail2: brelse(bh0);
 bail1:
 bail0:
+       hpfs_unlock(s);
        kfree(sbi->sb_bmp_dir);
        kfree(sbi->sb_cp_table);
        s->s_fs_info = NULL;