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Message-ID: <20140501231753.892.65406.stgit@birch.djwong.org> Date: Thu, 01 May 2014 16:17:53 -0700 From: "Darrick J. Wong" <darrick.wong@...cle.com> To: tytso@....edu, darrick.wong@...cle.com Cc: linux-ext4@...r.kernel.org Subject: [PATCH 5/5] ext4: enforce ext5 feature set and mount options Having defined "ext5" to be a set of required features and mount options, check that all the required featues are present and disable all but a handful of mount options. See the e2fsprogs part of this patch for the list of features and mount options that make up ext5. Again, this is not a fork, just a way to tie some features together and reduce our testing matrix. Signed-off-by: Darrick J. Wong <darrick.wong@...cle.com> --- fs/ext4/ext4.h | 52 +++++++++++++++++ fs/ext4/super.c | 173 +++++++++++++++++++++++++++++++++++++++---------------- 2 files changed, 176 insertions(+), 49 deletions(-) diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index fde4a27..a19f826 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -1575,6 +1575,58 @@ static inline void ext4_clear_state_flags(struct ext4_inode_info *ei) EXT4_FEATURE_RO_COMPAT_METADATA_CSUM|\ EXT4_FEATURE_RO_COMPAT_QUOTA) +/* ext5 features */ +#define EXT5_FEATURE_COMPAT_REQD_MASK (EXT4_FEATURE_COMPAT_RESIZE_INODE|\ + EXT4_FEATURE_COMPAT_DIR_INDEX|\ + EXT4_FEATURE_COMPAT_EXT_ATTR|\ + EXT4_FEATURE_COMPAT_SPARSE_SUPER2) + +#define EXT5_FEATURE_COMPAT_REQD (EXT4_FEATURE_COMPAT_DIR_INDEX|\ + EXT4_FEATURE_COMPAT_EXT_ATTR|\ + EXT4_FEATURE_COMPAT_SPARSE_SUPER2) + +#define EXT5_FEATURE_INCOMPAT_REQD_MASK (EXT4_FEATURE_INCOMPAT_FILETYPE|\ + EXT4_FEATURE_INCOMPAT_META_BG|\ + EXT4_FEATURE_INCOMPAT_EXTENTS|\ + EXT4_FEATURE_INCOMPAT_FLEX_BG|\ + EXT4_FEATURE_INCOMPAT_64BIT|\ + EXT4_FEATURE_INCOMPAT_INLINE_DATA) + +#define EXT5_FEATURE_INCOMPAT_REQD (EXT4_FEATURE_INCOMPAT_FILETYPE|\ + EXT4_FEATURE_INCOMPAT_META_BG|\ + EXT4_FEATURE_INCOMPAT_EXTENTS|\ + EXT4_FEATURE_INCOMPAT_FLEX_BG|\ + EXT4_FEATURE_INCOMPAT_64BIT|\ + EXT4_FEATURE_INCOMPAT_INLINE_DATA) + +#define EXT5_FEATURE_RO_COMPAT_REQD_MASK (EXT4_FEATURE_RO_COMPAT_SPARSE_SUPER|\ + EXT4_FEATURE_RO_COMPAT_HUGE_FILE|\ + EXT4_FEATURE_RO_COMPAT_LARGE_FILE|\ + EXT4_FEATURE_RO_COMPAT_DIR_NLINK|\ + EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|\ + EXT4_FEATURE_RO_COMPAT_GDT_CSUM|\ + EXT4_FEATURE_RO_COMPAT_METADATA_CSUM) + +#define EXT5_FEATURE_RO_COMPAT_REQD (EXT4_FEATURE_RO_COMPAT_SPARSE_SUPER|\ + EXT4_FEATURE_RO_COMPAT_HUGE_FILE|\ + EXT4_FEATURE_RO_COMPAT_LARGE_FILE|\ + EXT4_FEATURE_RO_COMPAT_DIR_NLINK|\ + EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|\ + EXT4_FEATURE_RO_COMPAT_METADATA_CSUM) + +#define EXT5_DEF_MNTOPT_MASK (EXT4_DEFM_XATTR_USER|\ + EXT4_DEFM_ACL|\ + EXT4_DEFM_UID16|\ + EXT4_DEFM_NOBARRIER|\ + EXT4_DEFM_BLOCK_VALIDITY|\ + EXT4_DEFM_NODELALLOC) + +#define EXT5_DEF_MNTOPT (EXT4_DEFM_XATTR_USER|\ + EXT4_DEFM_ACL|\ + EXT4_DEFM_BLOCK_VALIDITY) + +#define EXT5_MINOR_REV_LEVEL (2) + /* * Default values for user and/or group using reserved blocks */ diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 32967cb..508e78f 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -116,6 +116,17 @@ MODULE_ALIAS("ext3"); #define IS_EXT3_SB(sb) (0) #endif +static struct file_system_type ext5_fs_type = { + .owner = THIS_MODULE, + .name = "ext5", + .mount = ext4_mount, + .kill_sb = kill_block_super, + .fs_flags = FS_REQUIRES_DEV, +}; +MODULE_ALIAS_FS("ext5"); +MODULE_ALIAS("ext5"); +#define IS_EXT5_SB(sb) ((sb)->s_bdev->bd_holder == &ext5_fs_type) + static int ext4_verify_csum_type(struct super_block *sb, struct ext4_super_block *es) { @@ -386,6 +397,24 @@ static void ext4_journal_commit_callback(journal_t *journal, transaction_t *txn) * that error until we've noted it down and cleared it. */ +static int is_ext5_fs(struct super_block *sb) +{ + return (IS_EXT5_SB(sb) || + le16_to_cpu(EXT4_SB(sb)->s_es->s_minor_rev_level) == + EXT5_MINOR_REV_LEVEL); +} + +static int ext4_level(struct super_block *sb) +{ + if (IS_EXT2_SB(sb)) + return 2; + if (IS_EXT3_SB(sb)) + return 3; + if (is_ext5_fs(sb)) + return 5; + return 4; +} + static void ext4_handle_error(struct super_block *sb) { if (sb->s_flags & MS_RDONLY) @@ -408,8 +437,8 @@ static void ext4_handle_error(struct super_block *sb) sb->s_flags |= MS_RDONLY; } if (test_opt(sb, ERRORS_PANIC)) - panic("EXT4-fs (device %s): panic forced after error\n", - sb->s_id); + panic("EXT%d-fs (device %s): panic forced after error\n", + ext4_level(sb), sb->s_id); } #define ext4_error_ratelimit(sb) \ @@ -427,8 +456,9 @@ void __ext4_error(struct super_block *sb, const char *function, vaf.fmt = fmt; vaf.va = &args; printk(KERN_CRIT - "EXT4-fs error (device %s): %s:%d: comm %s: %pV\n", - sb->s_id, function, line, current->comm, &vaf); + "EXT%d-fs error (device %s): %s:%d: comm %s: %pV\n", + ext4_level(sb), sb->s_id, function, line, current->comm, + &vaf); va_end(args); } save_error_info(sb, function, line); @@ -450,15 +480,17 @@ void __ext4_error_inode(struct inode *inode, const char *function, vaf.fmt = fmt; vaf.va = &args; if (block) - printk(KERN_CRIT "EXT4-fs error (device %s): %s:%d: " + printk(KERN_CRIT "EXT%d-fs error (device %s): %s:%d: " "inode #%lu: block %llu: comm %s: %pV\n", - inode->i_sb->s_id, function, line, inode->i_ino, - block, current->comm, &vaf); + ext4_level(inode->i_sb), inode->i_sb->s_id, + function, line, inode->i_ino, block, + current->comm, &vaf); else - printk(KERN_CRIT "EXT4-fs error (device %s): %s:%d: " + printk(KERN_CRIT "EXT%d-fs error (device %s): %s:%d: " "inode #%lu: comm %s: %pV\n", - inode->i_sb->s_id, function, line, inode->i_ino, - current->comm, &vaf); + ext4_level(inode->i_sb), inode->i_sb->s_id, + function, line, inode->i_ino, current->comm, + &vaf); va_end(args); } save_error_info(inode->i_sb, function, line); @@ -486,16 +518,18 @@ void __ext4_error_file(struct file *file, const char *function, vaf.va = &args; if (block) printk(KERN_CRIT - "EXT4-fs error (device %s): %s:%d: inode #%lu: " + "EXT%d-fs error (device %s): %s:%d: inode #%lu: " "block %llu: comm %s: path %s: %pV\n", - inode->i_sb->s_id, function, line, inode->i_ino, - block, current->comm, path, &vaf); + ext4_level(inode->i_sb), inode->i_sb->s_id, + function, line, inode->i_ino, block, + current->comm, path, &vaf); else printk(KERN_CRIT - "EXT4-fs error (device %s): %s:%d: inode #%lu: " + "EXT%d-fs error (device %s): %s:%d: inode #%lu: " "comm %s: path %s: %pV\n", - inode->i_sb->s_id, function, line, inode->i_ino, - current->comm, path, &vaf); + ext4_level(inode->i_sb), inode->i_sb->s_id, + function, line, inode->i_ino, current->comm, + path, &vaf); va_end(args); } save_error_info(inode->i_sb, function, line); @@ -554,8 +588,8 @@ void __ext4_std_error(struct super_block *sb, const char *function, if (ext4_error_ratelimit(sb)) { errstr = ext4_decode_error(sb, errno, nbuf); - printk(KERN_CRIT "EXT4-fs error (device %s) in %s:%d: %s\n", - sb->s_id, function, line, errstr); + printk(KERN_CRIT "EXT%d-fs error (device %s) in %s:%d: %s\n", + ext4_level(sb), sb->s_id, function, line, errstr); } save_error_info(sb, function, line); @@ -579,8 +613,8 @@ void __ext4_abort(struct super_block *sb, const char *function, save_error_info(sb, function, line); va_start(args, fmt); - printk(KERN_CRIT "EXT4-fs error (device %s): %s:%d: ", sb->s_id, - function, line); + printk(KERN_CRIT "EXT%d-fs error (device %s): %s:%d: ", + ext4_level(sb), sb->s_id, function, line); vprintk(fmt, args); printk("\n"); va_end(args); @@ -599,7 +633,7 @@ void __ext4_abort(struct super_block *sb, const char *function, save_error_info(sb, function, line); } if (test_opt(sb, ERRORS_PANIC)) - panic("EXT4-fs panic from previous error\n"); + panic("EXT%d-fs panic from previous error\n", ext4_level(sb)); } void __ext4_msg(struct super_block *sb, @@ -614,7 +648,8 @@ void __ext4_msg(struct super_block *sb, va_start(args, fmt); vaf.fmt = fmt; vaf.va = &args; - printk("%sEXT4-fs (%s): %pV\n", prefix, sb->s_id, &vaf); + printk("%sEXT%d-fs (%s): %pV\n", prefix, ext4_level(sb), sb->s_id, + &vaf); va_end(args); } @@ -631,8 +666,8 @@ void __ext4_warning(struct super_block *sb, const char *function, va_start(args, fmt); vaf.fmt = fmt; vaf.va = &args; - printk(KERN_WARNING "EXT4-fs warning (device %s): %s:%d: %pV\n", - sb->s_id, function, line, &vaf); + printk(KERN_WARNING "EXT%d-fs warning (device %s): %s:%d: %pV\n", + ext4_level(sb), sb->s_id, function, line, &vaf); va_end(args); } @@ -655,8 +690,8 @@ __acquires(bitlock) va_start(args, fmt); vaf.fmt = fmt; vaf.va = &args; - printk(KERN_CRIT "EXT4-fs error (device %s): %s:%d: group %u, ", - sb->s_id, function, line, grp); + printk(KERN_CRIT "EXT%d-fs error (device %s): %s:%d: group %u, ", + ext4_level(sb), sb->s_id, function, line, grp); if (ino) printk(KERN_CONT "inode %lu: ", ino); if (block) @@ -1360,6 +1395,7 @@ static int clear_qf_name(struct super_block *sb, int qtype) #define MOPT_NO_EXT3 0x0200 #define MOPT_EXT4_ONLY (MOPT_NO_EXT2 | MOPT_NO_EXT3) #define MOPT_STRING 0x0400 +#define MOPT_EXT5_OPT 0x0800 static const struct mount_opts { int token; @@ -1370,27 +1406,27 @@ static const struct mount_opts { {Opt_bsd_df, EXT4_MOUNT_MINIX_DF, MOPT_CLEAR}, {Opt_grpid, EXT4_MOUNT_GRPID, MOPT_SET}, {Opt_nogrpid, EXT4_MOUNT_GRPID, MOPT_CLEAR}, - {Opt_block_validity, EXT4_MOUNT_BLOCK_VALIDITY, MOPT_SET}, + {Opt_block_validity, EXT4_MOUNT_BLOCK_VALIDITY, MOPT_EXT5_OPT | MOPT_SET}, {Opt_noblock_validity, EXT4_MOUNT_BLOCK_VALIDITY, MOPT_CLEAR}, {Opt_dioread_nolock, EXT4_MOUNT_DIOREAD_NOLOCK, MOPT_EXT4_ONLY | MOPT_SET}, {Opt_dioread_lock, EXT4_MOUNT_DIOREAD_NOLOCK, MOPT_EXT4_ONLY | MOPT_CLEAR}, - {Opt_discard, EXT4_MOUNT_DISCARD, MOPT_SET}, - {Opt_nodiscard, EXT4_MOUNT_DISCARD, MOPT_CLEAR}, + {Opt_discard, EXT4_MOUNT_DISCARD, MOPT_EXT5_OPT | MOPT_SET}, + {Opt_nodiscard, EXT4_MOUNT_DISCARD, MOPT_EXT5_OPT | MOPT_CLEAR}, {Opt_delalloc, EXT4_MOUNT_DELALLOC, MOPT_EXT4_ONLY | MOPT_SET | MOPT_EXPLICIT}, {Opt_nodelalloc, EXT4_MOUNT_DELALLOC, MOPT_EXT4_ONLY | MOPT_CLEAR}, {Opt_journal_checksum, EXT4_MOUNT_JOURNAL_CHECKSUM, - MOPT_EXT4_ONLY | MOPT_SET}, + MOPT_EXT5_OPT | MOPT_EXT4_ONLY | MOPT_SET}, {Opt_journal_async_commit, (EXT4_MOUNT_JOURNAL_ASYNC_COMMIT | EXT4_MOUNT_JOURNAL_CHECKSUM), MOPT_EXT4_ONLY | MOPT_SET}, {Opt_noload, EXT4_MOUNT_NOLOAD, MOPT_NO_EXT2 | MOPT_SET}, - {Opt_err_panic, EXT4_MOUNT_ERRORS_PANIC, MOPT_SET | MOPT_CLEAR_ERR}, - {Opt_err_ro, EXT4_MOUNT_ERRORS_RO, MOPT_SET | MOPT_CLEAR_ERR}, - {Opt_err_cont, EXT4_MOUNT_ERRORS_CONT, MOPT_SET | MOPT_CLEAR_ERR}, + {Opt_err_panic, EXT4_MOUNT_ERRORS_PANIC, MOPT_EXT5_OPT | MOPT_SET | MOPT_CLEAR_ERR}, + {Opt_err_ro, EXT4_MOUNT_ERRORS_RO, MOPT_EXT5_OPT | MOPT_SET | MOPT_CLEAR_ERR}, + {Opt_err_cont, EXT4_MOUNT_ERRORS_CONT, MOPT_EXT5_OPT | MOPT_SET | MOPT_CLEAR_ERR}, {Opt_data_err_abort, EXT4_MOUNT_DATA_ERR_ABORT, MOPT_NO_EXT2 | MOPT_SET}, {Opt_data_err_ignore, EXT4_MOUNT_DATA_ERR_ABORT, @@ -1408,24 +1444,24 @@ static const struct mount_opts { {Opt_stripe, 0, MOPT_GTE0}, {Opt_resuid, 0, MOPT_GTE0}, {Opt_resgid, 0, MOPT_GTE0}, - {Opt_journal_dev, 0, MOPT_GTE0}, - {Opt_journal_path, 0, MOPT_STRING}, + {Opt_journal_dev, 0, MOPT_EXT5_OPT | MOPT_GTE0}, + {Opt_journal_path, 0, MOPT_EXT5_OPT | MOPT_STRING}, {Opt_journal_ioprio, 0, MOPT_GTE0}, - {Opt_data_journal, EXT4_MOUNT_JOURNAL_DATA, MOPT_NO_EXT2 | MOPT_DATAJ}, - {Opt_data_ordered, EXT4_MOUNT_ORDERED_DATA, MOPT_NO_EXT2 | MOPT_DATAJ}, + {Opt_data_journal, EXT4_MOUNT_JOURNAL_DATA, MOPT_EXT5_OPT | MOPT_NO_EXT2 | MOPT_DATAJ}, + {Opt_data_ordered, EXT4_MOUNT_ORDERED_DATA, MOPT_EXT5_OPT | MOPT_NO_EXT2 | MOPT_DATAJ}, {Opt_data_writeback, EXT4_MOUNT_WRITEBACK_DATA, - MOPT_NO_EXT2 | MOPT_DATAJ}, - {Opt_user_xattr, EXT4_MOUNT_XATTR_USER, MOPT_SET}, + MOPT_EXT5_OPT | MOPT_NO_EXT2 | MOPT_DATAJ}, + {Opt_user_xattr, EXT4_MOUNT_XATTR_USER, MOPT_EXT5_OPT | MOPT_SET}, {Opt_nouser_xattr, EXT4_MOUNT_XATTR_USER, MOPT_CLEAR}, #ifdef CONFIG_EXT4_FS_POSIX_ACL - {Opt_acl, EXT4_MOUNT_POSIX_ACL, MOPT_SET}, + {Opt_acl, EXT4_MOUNT_POSIX_ACL, MOPT_EXT5_OPT | MOPT_SET}, {Opt_noacl, EXT4_MOUNT_POSIX_ACL, MOPT_CLEAR}, #else {Opt_acl, 0, MOPT_NOSUPPORT}, {Opt_noacl, 0, MOPT_NOSUPPORT}, #endif {Opt_nouid32, EXT4_MOUNT_NO_UID32, MOPT_SET}, - {Opt_debug, EXT4_MOUNT_DEBUG, MOPT_SET}, + {Opt_debug, EXT4_MOUNT_DEBUG, MOPT_EXT5_OPT | MOPT_SET}, {Opt_quota, EXT4_MOUNT_QUOTA | EXT4_MOUNT_USRQUOTA, MOPT_SET | MOPT_Q}, {Opt_usrquota, EXT4_MOUNT_QUOTA | EXT4_MOUNT_USRQUOTA, MOPT_SET | MOPT_Q}, @@ -1502,6 +1538,11 @@ static int handle_mount_opt(struct super_block *sb, char *opt, int token, "Mount option \"%s\" incompatible with ext3", opt); return -1; } + if (!(m->flags & MOPT_EXT5_OPT) && is_ext5_fs(sb)) { + ext4_msg(sb, KERN_ERR, + "Mount option \"%s\" incompatible with ext5", opt); + return -1; + } if (args->from && !(m->flags & MOPT_STRING) && match_int(args, &arg)) return -1; @@ -1532,7 +1573,7 @@ static int handle_mount_opt(struct super_block *sb, char *opt, int token, } else if (token == Opt_inode_readahead_blks) { if (arg && (arg > (1 << 30) || !is_power_of_2(arg))) { ext4_msg(sb, KERN_ERR, - "EXT4-fs: inode_readahead_blks must be " + "inode_readahead_blks must be " "0 or a power of 2 smaller than 2^31"); return -1; } @@ -2811,8 +2852,9 @@ static void print_daily_error_info(unsigned long arg) ext4_msg(sb, KERN_NOTICE, "error count: %u", le32_to_cpu(es->s_error_count)); if (es->s_first_error_time) { - printk(KERN_NOTICE "EXT4-fs (%s): initial error at %u: %.*s:%d", - sb->s_id, le32_to_cpu(es->s_first_error_time), + printk(KERN_NOTICE "EXT%d-fs (%s): initial error at %u: %.*s:%d", + ext4_level(sb), sb->s_id, + le32_to_cpu(es->s_first_error_time), (int) sizeof(es->s_first_error_func), es->s_first_error_func, le32_to_cpu(es->s_first_error_line)); @@ -2825,8 +2867,9 @@ static void print_daily_error_info(unsigned long arg) printk("\n"); } if (es->s_last_error_time) { - printk(KERN_NOTICE "EXT4-fs (%s): last error at %u: %.*s:%d", - sb->s_id, le32_to_cpu(es->s_last_error_time), + printk(KERN_NOTICE "EXT%d-fs (%s): last error at %u: %.*s:%d", + ext4_level(sb), sb->s_id, + le32_to_cpu(es->s_last_error_time), (int) sizeof(es->s_last_error_func), es->s_last_error_func, le32_to_cpu(es->s_last_error_line)); @@ -3495,6 +3538,31 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent) sbi->s_csum_seed = ext4_chksum(sbi, ~0, es->s_uuid, sizeof(es->s_uuid)); + /* check ext5 features and mount options */ + if (IS_EXT5_SB(sb) && + le16_to_cpu(es->s_minor_rev_level) != EXT5_MINOR_REV_LEVEL) { + ext4_msg(sb, KERN_ERR, "VFS: Trying to mount non-ext5 " + "filesystem as ext5?"); + goto failed_mount; + } + + if ((le16_to_cpu(es->s_minor_rev_level) == EXT5_MINOR_REV_LEVEL) && + ((le32_to_cpu(es->s_feature_incompat) & + EXT5_FEATURE_INCOMPAT_REQD_MASK) != EXT5_FEATURE_INCOMPAT_REQD || + (le32_to_cpu(es->s_feature_ro_compat) & + EXT5_FEATURE_RO_COMPAT_REQD_MASK) != EXT5_FEATURE_RO_COMPAT_REQD || + (le32_to_cpu(es->s_feature_compat) & + EXT5_FEATURE_COMPAT_REQD_MASK) != EXT5_FEATURE_COMPAT_REQD || + (le32_to_cpu(es->s_default_mount_opts) & + EXT5_DEF_MNTOPT_MASK) != EXT5_DEF_MNTOPT)) { + ext4_msg(sb, KERN_ERR, "VFS: Found ext5 filesystem with " + "missing features. Run e2fsck?"); + goto failed_mount; + } + + if (is_ext5_fs(sb)) + set_opt(sb, JOURNAL_CHECKSUM); + /* Set defaults before we parse the mount options */ def_mount_opts = le32_to_cpu(es->s_default_mount_opts); set_opt(sb, INIT_INODE_TABLE); @@ -3562,9 +3630,10 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent) goto failed_mount; if (test_opt(sb, DATA_FLAGS) == EXT4_MOUNT_JOURNAL_DATA) { - printk_once(KERN_WARNING "EXT4-fs: Warning: mounting " + printk_once(KERN_WARNING "EXT%d-fs: Warning: mounting " "with data=journal disables delayed " - "allocation and O_DIRECT support!\n"); + "allocation and O_DIRECT support!\n", + ext4_level(sb)); if (test_opt2(sb, EXPLICIT_DELALLOC)) { ext4_msg(sb, KERN_ERR, "can't mount with " "both data=journal and delalloc"); @@ -4073,7 +4142,8 @@ no_journal: EXT4_SB(sb)->rsv_conversion_wq = alloc_workqueue("ext4-rsv-conversion", WQ_MEM_RECLAIM | WQ_UNBOUND, 1); if (!EXT4_SB(sb)->rsv_conversion_wq) { - printk(KERN_ERR "EXT4-fs: failed to create workqueue\n"); + printk(KERN_ERR "EXT%d-fs: failed to create workqueue\n", + ext4_level(sb)); ret = -ENOMEM; goto failed_mount4; } @@ -5563,6 +5633,9 @@ static int __init ext4_init_fs(void) goto out1; register_as_ext3(); register_as_ext2(); + err = register_filesystem(&ext5_fs_type); + if (err) + goto out; err = register_filesystem(&ext4_fs_type); if (err) goto out; @@ -5571,6 +5644,7 @@ static int __init ext4_init_fs(void) out: unregister_as_ext2(); unregister_as_ext3(); + unregister_filesystem(&ext4_fs_type); destroy_inodecache(); out1: ext4_mballoc_ready = 0; @@ -5597,6 +5671,7 @@ static void __exit ext4_exit_fs(void) unregister_as_ext2(); unregister_as_ext3(); unregister_filesystem(&ext4_fs_type); + unregister_filesystem(&ext5_fs_type); destroy_inodecache(); ext4_exit_mballoc(); ext4_exit_feat_adverts(); -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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