diff options
Diffstat (limited to 'fs/fat/inode.c')
| -rw-r--r-- | fs/fat/inode.c | 59 |
1 files changed, 54 insertions, 5 deletions
diff --git a/fs/fat/inode.c b/fs/fat/inode.c index 296785a0dec8..304b411cb8bc 100644 --- a/fs/fat/inode.c +++ b/fs/fat/inode.c @@ -76,7 +76,7 @@ static inline int __fat_get_block(struct inode *inode, sector_t iblock, return 0; if (iblock != MSDOS_I(inode)->mmu_private >> sb->s_blocksize_bits) { - fat_fs_panic(sb, "corrupted file size (i_pos %lld, %lld)", + fat_fs_error(sb, "corrupted file size (i_pos %lld, %lld)", MSDOS_I(inode)->i_pos, MSDOS_I(inode)->mmu_private); return -EIO; } @@ -441,16 +441,35 @@ static void fat_clear_inode(struct inode *inode) static void fat_write_super(struct super_block *sb) { + lock_super(sb); sb->s_dirt = 0; if (!(sb->s_flags & MS_RDONLY)) fat_clusters_flush(sb); + unlock_super(sb); +} + +static int fat_sync_fs(struct super_block *sb, int wait) +{ + lock_super(sb); + fat_clusters_flush(sb); + sb->s_dirt = 0; + unlock_super(sb); + + return 0; } static void fat_put_super(struct super_block *sb) { struct msdos_sb_info *sbi = MSDOS_SB(sb); + lock_kernel(); + + if (sb->s_dirt) + fat_write_super(sb); + + iput(sbi->fat_inode); + if (sbi->nls_disk) { unload_nls(sbi->nls_disk); sbi->nls_disk = NULL; @@ -467,6 +486,8 @@ static void fat_put_super(struct super_block *sb) sb->s_fs_info = NULL; kfree(sbi); + + unlock_kernel(); } static struct kmem_cache *fat_inode_cachep; @@ -632,6 +653,7 @@ static const struct super_operations fat_sops = { .delete_inode = fat_delete_inode, .put_super = fat_put_super, .write_super = fat_write_super, + .sync_fs = fat_sync_fs, .statfs = fat_statfs, .clear_inode = fat_clear_inode, .remount_fs = fat_remount, @@ -834,6 +856,12 @@ static int fat_show_options(struct seq_file *m, struct vfsmount *mnt) seq_puts(m, ",flush"); if (opts->tz_utc) seq_puts(m, ",tz=UTC"); + if (opts->errors == FAT_ERRORS_CONT) + seq_puts(m, ",errors=continue"); + else if (opts->errors == FAT_ERRORS_PANIC) + seq_puts(m, ",errors=panic"); + else + seq_puts(m, ",errors=remount-ro"); return 0; } @@ -846,7 +874,8 @@ enum { Opt_charset, Opt_shortname_lower, Opt_shortname_win95, Opt_shortname_winnt, Opt_shortname_mixed, Opt_utf8_no, Opt_utf8_yes, Opt_uni_xl_no, Opt_uni_xl_yes, Opt_nonumtail_no, Opt_nonumtail_yes, - Opt_obsolate, Opt_flush, Opt_tz_utc, Opt_rodir, Opt_err, + Opt_obsolate, Opt_flush, Opt_tz_utc, Opt_rodir, Opt_err_cont, + Opt_err_panic, Opt_err_ro, Opt_err, }; static const match_table_t fat_tokens = { @@ -869,6 +898,11 @@ static const match_table_t fat_tokens = { {Opt_showexec, "showexec"}, {Opt_debug, "debug"}, {Opt_immutable, "sys_immutable"}, + {Opt_flush, "flush"}, + {Opt_tz_utc, "tz=UTC"}, + {Opt_err_cont, "errors=continue"}, + {Opt_err_panic, "errors=panic"}, + {Opt_err_ro, "errors=remount-ro"}, {Opt_obsolate, "conv=binary"}, {Opt_obsolate, "conv=text"}, {Opt_obsolate, "conv=auto"}, @@ -880,8 +914,6 @@ static const match_table_t fat_tokens = { {Opt_obsolate, "cvf_format=%20s"}, {Opt_obsolate, "cvf_options=%100s"}, {Opt_obsolate, "posix"}, - {Opt_flush, "flush"}, - {Opt_tz_utc, "tz=UTC"}, {Opt_err, NULL}, }; static const match_table_t msdos_tokens = { @@ -951,6 +983,7 @@ static int parse_options(char *options, int is_vfat, int silent, int *debug, opts->numtail = 1; opts->usefree = opts->nocase = 0; opts->tz_utc = 0; + opts->errors = FAT_ERRORS_RO; *debug = 0; if (!options) @@ -1043,6 +1076,15 @@ static int parse_options(char *options, int is_vfat, int silent, int *debug, case Opt_tz_utc: opts->tz_utc = 1; break; + case Opt_err_cont: + opts->errors = FAT_ERRORS_CONT; + break; + case Opt_err_panic: + opts->errors = FAT_ERRORS_PANIC; + break; + case Opt_err_ro: + opts->errors = FAT_ERRORS_RO; + break; /* msdos specific */ case Opt_dots: @@ -1174,7 +1216,7 @@ static int fat_read_root(struct inode *inode) int fat_fill_super(struct super_block *sb, void *data, int silent, const struct inode_operations *fs_dir_inode_ops, int isvfat) { - struct inode *root_inode = NULL; + struct inode *root_inode = NULL, *fat_inode = NULL; struct buffer_head *bh; struct fat_boot_sector *b; struct msdos_sb_info *sbi; @@ -1414,6 +1456,11 @@ int fat_fill_super(struct super_block *sb, void *data, int silent, } error = -ENOMEM; + fat_inode = new_inode(sb); + if (!fat_inode) + goto out_fail; + MSDOS_I(fat_inode)->i_pos = 0; + sbi->fat_inode = fat_inode; root_inode = new_inode(sb); if (!root_inode) goto out_fail; @@ -1439,6 +1486,8 @@ out_invalid: " on dev %s.\n", sb->s_id); out_fail: + if (fat_inode) + iput(fat_inode); if (root_inode) iput(root_inode); if (sbi->nls_io) |