diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-01-31 04:08:20 (GMT) |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-01-31 04:08:20 (GMT) |
commit | e7651b819e90da924991d727d3c007200a18670d (patch) | |
tree | e7a943b5bb56c384972944fd86767a3f079b8a98 /fs/btrfs/super.c | |
parent | 060e8e3b6f8fc0ba97de2276249fbd80fa25b0a2 (diff) | |
parent | cf93da7bcf450cb4595055d491a0519cb39e68ed (diff) | |
download | linux-e7651b819e90da924991d727d3c007200a18670d.tar.xz |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs
Pull btrfs updates from Chris Mason:
"This is a pretty big pull, and most of these changes have been
floating in btrfs-next for a long time. Filipe's properties work is a
cool building block for inheriting attributes like compression down on
a per inode basis.
Jeff Mahoney kicked in code to export filesystem info into sysfs.
Otherwise, lots of performance improvements, cleanups and bug fixes.
Looks like there are still a few other small pending incrementals, but
I wanted to get the bulk of this in first"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: (149 commits)
Btrfs: fix spin_unlock in check_ref_cleanup
Btrfs: setup inode location during btrfs_init_inode_locked
Btrfs: don't use ram_bytes for uncompressed inline items
Btrfs: fix btrfs_search_slot_for_read backwards iteration
Btrfs: do not export ulist functions
Btrfs: rework ulist with list+rb_tree
Btrfs: fix memory leaks on walking backrefs failure
Btrfs: fix send file hole detection leading to data corruption
Btrfs: add a reschedule point in btrfs_find_all_roots()
Btrfs: make send's file extent item search more efficient
Btrfs: fix to catch all errors when resolving indirect ref
Btrfs: fix protection between walking backrefs and root deletion
btrfs: fix warning while merging two adjacent extents
Btrfs: fix infinite path build loops in incremental send
btrfs: undo sysfs when open_ctree() fails
Btrfs: fix snprintf usage by send's gen_unique_name
btrfs: fix defrag 32-bit integer overflow
btrfs: sysfs: list the NO_HOLES feature
btrfs: sysfs: don't show reserved incompat feature
btrfs: call permission checks earlier in ioctls and return EPERM
...
Diffstat (limited to 'fs/btrfs/super.c')
-rw-r--r-- | fs/btrfs/super.c | 241 |
1 files changed, 161 insertions, 80 deletions
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c index d71a11d..c02f633 100644 --- a/fs/btrfs/super.c +++ b/fs/btrfs/super.c @@ -48,6 +48,8 @@ #include "transaction.h" #include "btrfs_inode.h" #include "print-tree.h" +#include "hash.h" +#include "props.h" #include "xattr.h" #include "volumes.h" #include "export.h" @@ -152,11 +154,12 @@ void __btrfs_std_error(struct btrfs_fs_info *fs_info, const char *function, vaf.fmt = fmt; vaf.va = &args; - printk(KERN_CRIT "BTRFS error (device %s) in %s:%d: errno=%d %s (%pV)\n", + printk(KERN_CRIT + "BTRFS: error (device %s) in %s:%d: errno=%d %s (%pV)\n", sb->s_id, function, line, errno, errstr, &vaf); va_end(args); } else { - printk(KERN_CRIT "BTRFS error (device %s) in %s:%d: errno=%d %s\n", + printk(KERN_CRIT "BTRFS: error (device %s) in %s:%d: errno=%d %s\n", sb->s_id, function, line, errno, errstr); } @@ -250,7 +253,7 @@ void __btrfs_abort_transaction(struct btrfs_trans_handle *trans, */ if (!test_and_set_bit(BTRFS_FS_STATE_TRANS_ABORTED, &root->fs_info->fs_state)) { - WARN(1, KERN_DEBUG "btrfs: Transaction aborted (error %d)\n", + WARN(1, KERN_DEBUG "BTRFS: Transaction aborted (error %d)\n", errno); } trans->aborted = errno; @@ -294,8 +297,8 @@ void __btrfs_panic(struct btrfs_fs_info *fs_info, const char *function, panic(KERN_CRIT "BTRFS panic (device %s) in %s:%d: %pV (errno=%d %s)\n", s_id, function, line, &vaf, errno, errstr); - printk(KERN_CRIT "BTRFS panic (device %s) in %s:%d: %pV (errno=%d %s)\n", - s_id, function, line, &vaf, errno, errstr); + btrfs_crit(fs_info, "panic in %s:%d: %pV (errno=%d %s)", + function, line, &vaf, errno, errstr); va_end(args); /* Caller calls BUG() */ } @@ -322,7 +325,9 @@ enum { Opt_no_space_cache, Opt_recovery, Opt_skip_balance, Opt_check_integrity, Opt_check_integrity_including_extent_data, Opt_check_integrity_print_mask, Opt_fatal_errors, Opt_rescan_uuid_tree, - Opt_commit_interval, + Opt_commit_interval, Opt_barrier, Opt_nodefrag, Opt_nodiscard, + Opt_noenospc_debug, Opt_noflushoncommit, Opt_acl, Opt_datacow, + Opt_datasum, Opt_treelog, Opt_noinode_cache, Opt_err, }; @@ -332,8 +337,11 @@ static match_table_t tokens = { {Opt_subvolid, "subvolid=%s"}, {Opt_device, "device=%s"}, {Opt_nodatasum, "nodatasum"}, + {Opt_datasum, "datasum"}, {Opt_nodatacow, "nodatacow"}, + {Opt_datacow, "datacow"}, {Opt_nobarrier, "nobarrier"}, + {Opt_barrier, "barrier"}, {Opt_max_inline, "max_inline=%s"}, {Opt_alloc_start, "alloc_start=%s"}, {Opt_thread_pool, "thread_pool=%d"}, @@ -344,18 +352,25 @@ static match_table_t tokens = { {Opt_ssd, "ssd"}, {Opt_ssd_spread, "ssd_spread"}, {Opt_nossd, "nossd"}, + {Opt_acl, "acl"}, {Opt_noacl, "noacl"}, {Opt_notreelog, "notreelog"}, + {Opt_treelog, "treelog"}, {Opt_flushoncommit, "flushoncommit"}, + {Opt_noflushoncommit, "noflushoncommit"}, {Opt_ratio, "metadata_ratio=%d"}, {Opt_discard, "discard"}, + {Opt_nodiscard, "nodiscard"}, {Opt_space_cache, "space_cache"}, {Opt_clear_cache, "clear_cache"}, {Opt_user_subvol_rm_allowed, "user_subvol_rm_allowed"}, {Opt_enospc_debug, "enospc_debug"}, + {Opt_noenospc_debug, "noenospc_debug"}, {Opt_subvolrootid, "subvolrootid=%d"}, {Opt_defrag, "autodefrag"}, + {Opt_nodefrag, "noautodefrag"}, {Opt_inode_cache, "inode_cache"}, + {Opt_noinode_cache, "noinode_cache"}, {Opt_no_space_cache, "nospace_cache"}, {Opt_recovery, "recovery"}, {Opt_skip_balance, "skip_balance"}, @@ -368,6 +383,20 @@ static match_table_t tokens = { {Opt_err, NULL}, }; +#define btrfs_set_and_info(root, opt, fmt, args...) \ +{ \ + if (!btrfs_test_opt(root, opt)) \ + btrfs_info(root->fs_info, fmt, ##args); \ + btrfs_set_opt(root->fs_info->mount_opt, opt); \ +} + +#define btrfs_clear_and_info(root, opt, fmt, args...) \ +{ \ + if (btrfs_test_opt(root, opt)) \ + btrfs_info(root->fs_info, fmt, ##args); \ + btrfs_clear_opt(root->fs_info->mount_opt, opt); \ +} + /* * Regular mount options parser. Everything that is needed only when * reading in a new superblock is parsed here. @@ -383,6 +412,7 @@ int btrfs_parse_options(struct btrfs_root *root, char *options) int ret = 0; char *compress_type; bool compress_force = false; + bool compress = false; cache_gen = btrfs_super_cache_generation(root->fs_info->super_copy); if (cache_gen) @@ -409,7 +439,7 @@ int btrfs_parse_options(struct btrfs_root *root, char *options) token = match_token(p, tokens, args); switch (token) { case Opt_degraded: - printk(KERN_INFO "btrfs: allowing degraded mounts\n"); + btrfs_info(root->fs_info, "allowing degraded mounts"); btrfs_set_opt(info->mount_opt, DEGRADED); break; case Opt_subvol: @@ -422,27 +452,45 @@ int btrfs_parse_options(struct btrfs_root *root, char *options) */ break; case Opt_nodatasum: - printk(KERN_INFO "btrfs: setting nodatasum\n"); - btrfs_set_opt(info->mount_opt, NODATASUM); + btrfs_set_and_info(root, NODATASUM, + "setting nodatasum"); + break; + case Opt_datasum: + if (btrfs_test_opt(root, NODATASUM)) { + if (btrfs_test_opt(root, NODATACOW)) + btrfs_info(root->fs_info, "setting datasum, datacow enabled"); + else + btrfs_info(root->fs_info, "setting datasum"); + } + btrfs_clear_opt(info->mount_opt, NODATACOW); + btrfs_clear_opt(info->mount_opt, NODATASUM); break; case Opt_nodatacow: - if (!btrfs_test_opt(root, COMPRESS) || - !btrfs_test_opt(root, FORCE_COMPRESS)) { - printk(KERN_INFO "btrfs: setting nodatacow, compression disabled\n"); - } else { - printk(KERN_INFO "btrfs: setting nodatacow\n"); + if (!btrfs_test_opt(root, NODATACOW)) { + if (!btrfs_test_opt(root, COMPRESS) || + !btrfs_test_opt(root, FORCE_COMPRESS)) { + btrfs_info(root->fs_info, + "setting nodatacow, compression disabled"); + } else { + btrfs_info(root->fs_info, "setting nodatacow"); + } } btrfs_clear_opt(info->mount_opt, COMPRESS); btrfs_clear_opt(info->mount_opt, FORCE_COMPRESS); btrfs_set_opt(info->mount_opt, NODATACOW); btrfs_set_opt(info->mount_opt, NODATASUM); break; + case Opt_datacow: + btrfs_clear_and_info(root, NODATACOW, + "setting datacow"); + break; case Opt_compress_force: case Opt_compress_force_type: compress_force = true; /* Fallthrough */ case Opt_compress: case Opt_compress_type: + compress = true; if (token == Opt_compress || token == Opt_compress_force || strcmp(args[0].from, "zlib") == 0) { @@ -469,34 +517,36 @@ int btrfs_parse_options(struct btrfs_root *root, char *options) } if (compress_force) { - btrfs_set_opt(info->mount_opt, FORCE_COMPRESS); - pr_info("btrfs: force %s compression\n", - compress_type); - } else if (btrfs_test_opt(root, COMPRESS)) { - pr_info("btrfs: use %s compression\n", - compress_type); + btrfs_set_and_info(root, FORCE_COMPRESS, + "force %s compression", + compress_type); + } else if (compress) { + if (!btrfs_test_opt(root, COMPRESS)) + btrfs_info(root->fs_info, + "btrfs: use %s compression\n", + compress_type); } break; case Opt_ssd: - printk(KERN_INFO "btrfs: use ssd allocation scheme\n"); - btrfs_set_opt(info->mount_opt, SSD); + btrfs_set_and_info(root, SSD, + "use ssd allocation scheme"); break; case Opt_ssd_spread: - printk(KERN_INFO "btrfs: use spread ssd " - "allocation scheme\n"); - btrfs_set_opt(info->mount_opt, SSD); - btrfs_set_opt(info->mount_opt, SSD_SPREAD); + btrfs_set_and_info(root, SSD_SPREAD, + "use spread ssd allocation scheme"); break; case Opt_nossd: - printk(KERN_INFO "btrfs: not using ssd allocation " - "scheme\n"); - btrfs_set_opt(info->mount_opt, NOSSD); + btrfs_clear_and_info(root, NOSSD, + "not using ssd allocation scheme"); btrfs_clear_opt(info->mount_opt, SSD); - btrfs_clear_opt(info->mount_opt, SSD_SPREAD); + break; + case Opt_barrier: + btrfs_clear_and_info(root, NOBARRIER, + "turning on barriers"); break; case Opt_nobarrier: - printk(KERN_INFO "btrfs: turning off barriers\n"); - btrfs_set_opt(info->mount_opt, NOBARRIER); + btrfs_set_and_info(root, NOBARRIER, + "turning off barriers"); break; case Opt_thread_pool: ret = match_int(&args[0], &intarg); @@ -520,7 +570,7 @@ int btrfs_parse_options(struct btrfs_root *root, char *options) info->max_inline, root->sectorsize); } - printk(KERN_INFO "btrfs: max_inline at %llu\n", + btrfs_info(root->fs_info, "max_inline at %llu", info->max_inline); } else { ret = -ENOMEM; @@ -534,24 +584,34 @@ int btrfs_parse_options(struct btrfs_root *root, char *options) info->alloc_start = memparse(num, NULL); mutex_unlock(&info->chunk_mutex); kfree(num); - printk(KERN_INFO - "btrfs: allocations start at %llu\n", + btrfs_info(root->fs_info, "allocations start at %llu", info->alloc_start); } else { ret = -ENOMEM; goto out; } break; + case Opt_acl: + root->fs_info->sb->s_flags |= MS_POSIXACL; + break; case Opt_noacl: root->fs_info->sb->s_flags &= ~MS_POSIXACL; break; case Opt_notreelog: - printk(KERN_INFO "btrfs: disabling tree log\n"); - btrfs_set_opt(info->mount_opt, NOTREELOG); + btrfs_set_and_info(root, NOTREELOG, + "disabling tree log"); + break; + case Opt_treelog: + btrfs_clear_and_info(root, NOTREELOG, + "enabling tree log"); break; case Opt_flushoncommit: - printk(KERN_INFO "btrfs: turning on flush-on-commit\n"); - btrfs_set_opt(info->mount_opt, FLUSHONCOMMIT); + btrfs_set_and_info(root, FLUSHONCOMMIT, + "turning on flush-on-commit"); + break; + case Opt_noflushoncommit: + btrfs_clear_and_info(root, FLUSHONCOMMIT, + "turning off flush-on-commit"); break; case Opt_ratio: ret = match_int(&args[0], &intarg); @@ -559,7 +619,7 @@ int btrfs_parse_options(struct btrfs_root *root, char *options) goto out; } else if (intarg >= 0) { info->metadata_ratio = intarg; - printk(KERN_INFO "btrfs: metadata ratio %d\n", + btrfs_info(root->fs_info, "metadata ratio %d", info->metadata_ratio); } else { ret = -EINVAL; @@ -567,25 +627,35 @@ int btrfs_parse_options(struct btrfs_root *root, char *options) } break; case Opt_discard: - btrfs_set_opt(info->mount_opt, DISCARD); + btrfs_set_and_info(root, DISCARD, + "turning on discard"); + break; + case Opt_nodiscard: + btrfs_clear_and_info(root, DISCARD, + "turning off discard"); break; case Opt_space_cache: - btrfs_set_opt(info->mount_opt, SPACE_CACHE); + btrfs_set_and_info(root, SPACE_CACHE, + "enabling disk space caching"); break; case Opt_rescan_uuid_tree: btrfs_set_opt(info->mount_opt, RESCAN_UUID_TREE); break; case Opt_no_space_cache: - printk(KERN_INFO "btrfs: disabling disk space caching\n"); - btrfs_clear_opt(info->mount_opt, SPACE_CACHE); + btrfs_clear_and_info(root, SPACE_CACHE, + "disabling disk space caching"); break; case Opt_inode_cache: - printk(KERN_INFO "btrfs: enabling inode map caching\n"); - btrfs_set_opt(info->mount_opt, INODE_MAP_CACHE); + btrfs_set_and_info(root, CHANGE_INODE_CACHE, + "enabling inode map caching"); + break; + case Opt_noinode_cache: + btrfs_clear_and_info(root, CHANGE_INODE_CACHE, + "disabling inode map caching"); break; case Opt_clear_cache: - printk(KERN_INFO "btrfs: force clearing of disk cache\n"); - btrfs_set_opt(info->mount_opt, CLEAR_CACHE); + btrfs_set_and_info(root, CLEAR_CACHE, + "force clearing of disk cache"); break; case Opt_user_subvol_rm_allowed: btrfs_set_opt(info->mount_opt, USER_SUBVOL_RM_ALLOWED); @@ -593,12 +663,19 @@ int btrfs_parse_options(struct btrfs_root *root, char *options) case Opt_enospc_debug: btrfs_set_opt(info->mount_opt, ENOSPC_DEBUG); break; + case Opt_noenospc_debug: + btrfs_clear_opt(info->mount_opt, ENOSPC_DEBUG); + break; case Opt_defrag: - printk(KERN_INFO "btrfs: enabling auto defrag\n"); - btrfs_set_opt(info->mount_opt, AUTO_DEFRAG); + btrfs_set_and_info(root, AUTO_DEFRAG, + "enabling auto defrag"); + break; + case Opt_nodefrag: + btrfs_clear_and_info(root, AUTO_DEFRAG, + "disabling auto defrag"); break; case Opt_recovery: - printk(KERN_INFO "btrfs: enabling auto recovery\n"); + btrfs_info(root->fs_info, "enabling auto recovery"); btrfs_set_opt(info->mount_opt, RECOVERY); break; case Opt_skip_balance: @@ -606,14 +683,14 @@ int btrfs_parse_options(struct btrfs_root *root, char *options) break; #ifdef CONFIG_BTRFS_FS_CHECK_INTEGRITY case Opt_check_integrity_including_extent_data: - printk(KERN_INFO "btrfs: enabling check integrity" - " including extent data\n"); + btrfs_info(root->fs_info, + "enabling check integrity including extent data"); btrfs_set_opt(info->mount_opt, CHECK_INTEGRITY_INCLUDING_EXTENT_DATA); btrfs_set_opt(info->mount_opt, CHECK_INTEGRITY); break; case Opt_check_integrity: - printk(KERN_INFO "btrfs: enabling check integrity\n"); + btrfs_info(root->fs_info, "enabling check integrity"); btrfs_set_opt(info->mount_opt, CHECK_INTEGRITY); break; case Opt_check_integrity_print_mask: @@ -622,8 +699,7 @@ int btrfs_parse_options(struct btrfs_root *root, char *options) goto out; } else if (intarg >= 0) { info->check_integrity_print_mask = intarg; - printk(KERN_INFO "btrfs:" - " check_integrity_print_mask 0x%x\n", + btrfs_info(root->fs_info, "check_integrity_print_mask 0x%x", info->check_integrity_print_mask); } else { ret = -EINVAL; @@ -634,8 +710,8 @@ int btrfs_parse_options(struct btrfs_root *root, char *options) case Opt_check_integrity_including_extent_data: case Opt_check_integrity: case Opt_check_integrity_print_mask: - printk(KERN_ERR "btrfs: support for check_integrity*" - " not compiled in!\n"); + btrfs_err(root->fs_info, + "support for check_integrity* not compiled in!"); ret = -EINVAL; goto out; #endif @@ -655,28 +731,24 @@ int btrfs_parse_options(struct btrfs_root *root, char *options) intarg = 0; ret = match_int(&args[0], &intarg); if (ret < 0) { - printk(KERN_ERR - "btrfs: invalid commit interval\n"); + btrfs_err(root->fs_info, "invalid commit interval"); ret = -EINVAL; goto out; } if (intarg > 0) { if (intarg > 300) { - printk(KERN_WARNING - "btrfs: excessive commit interval %d\n", + btrfs_warn(root->fs_info, "excessive commit interval %d", intarg); } info->commit_interval = intarg; } else { - printk(KERN_INFO - "btrfs: using default commit interval %ds\n", + btrfs_info(root->fs_info, "using default commit interval %ds", BTRFS_DEFAULT_COMMIT_INTERVAL); info->commit_interval = BTRFS_DEFAULT_COMMIT_INTERVAL; } break; case Opt_err: - printk(KERN_INFO "btrfs: unrecognized mount option " - "'%s'\n", p); + btrfs_info(root->fs_info, "unrecognized mount option '%s'", p); ret = -EINVAL; goto out; default: @@ -685,7 +757,7 @@ int btrfs_parse_options(struct btrfs_root *root, char *options) } out: if (!ret && btrfs_test_opt(root, SPACE_CACHE)) - printk(KERN_INFO "btrfs: disk space caching is enabled\n"); + btrfs_info(root->fs_info, "disk space caching is enabled"); kfree(orig); return ret; } @@ -748,7 +820,8 @@ static int btrfs_parse_early_options(const char *options, fmode_t flags, break; case Opt_subvolrootid: printk(KERN_WARNING - "btrfs: 'subvolrootid' mount option is deprecated and has no effect\n"); + "BTRFS: 'subvolrootid' mount option is deprecated and has " + "no effect\n"); break; case Opt_device: device_name = match_strdup(&args[0]); @@ -877,7 +950,7 @@ static int btrfs_fill_super(struct super_block *sb, sb->s_flags |= MS_I_VERSION; err = open_ctree(sb, fs_devices, (char *)data); if (err) { - printk("btrfs: open_ctree failed\n"); + printk(KERN_ERR "BTRFS: open_ctree failed\n"); return err; } @@ -1115,7 +1188,7 @@ static struct dentry *mount_subvol(const char *subvol_name, int flags, dput(root); root = ERR_PTR(-EINVAL); deactivate_locked_super(s); - printk(KERN_ERR "btrfs: '%s' is not a valid subvolume\n", + printk(KERN_ERR "BTRFS: '%s' is not a valid subvolume\n", subvol_name); } @@ -1240,7 +1313,7 @@ static void btrfs_resize_thread_pool(struct btrfs_fs_info *fs_info, fs_info->thread_pool_size = new_pool_size; - printk(KERN_INFO "btrfs: resize thread pool %d -> %d\n", + btrfs_info(fs_info, "resize thread pool %d -> %d", old_pool_size, new_pool_size); btrfs_set_max_workers(&fs_info->generic_worker, new_pool_size); @@ -1346,7 +1419,7 @@ static int btrfs_remount(struct super_block *sb, int *flags, char *data) } else { if (test_bit(BTRFS_FS_STATE_ERROR, &root->fs_info->fs_state)) { btrfs_err(fs_info, - "Remounting read-write after error is not allowed\n"); + "Remounting read-write after error is not allowed"); ret = -EINVAL; goto restore; } @@ -1358,8 +1431,8 @@ static int btrfs_remount(struct super_block *sb, int *flags, char *data) if (fs_info->fs_devices->missing_devices > fs_info->num_tolerated_disk_barrier_failures && !(*flags & MS_RDONLY)) { - printk(KERN_WARNING - "Btrfs: too many missing devices, writeable remount is not allowed\n"); + btrfs_warn(fs_info, + "too many missing devices, writeable remount is not allowed"); ret = -EACCES; goto restore; } @@ -1384,16 +1457,15 @@ static int btrfs_remount(struct super_block *sb, int *flags, char *data) ret = btrfs_resume_dev_replace_async(fs_info); if (ret) { - pr_warn("btrfs: failed to resume dev_replace\n"); + btrfs_warn(fs_info, "failed to resume dev_replace"); goto restore; } if (!fs_info->uuid_root) { - pr_info("btrfs: creating UUID tree\n"); + btrfs_info(fs_info, "creating UUID tree"); ret = btrfs_create_uuid_tree(fs_info); if (ret) { - pr_warn("btrfs: failed to create the uuid tree" - "%d\n", ret); + btrfs_warn(fs_info, "failed to create the UUID tree %d", ret); goto restore; } } @@ -1773,7 +1845,7 @@ static int btrfs_interface_init(void) static void btrfs_interface_exit(void) { if (misc_deregister(&btrfs_misc) < 0) - printk(KERN_INFO "btrfs: misc_deregister failed for control device\n"); + printk(KERN_INFO "BTRFS: misc_deregister failed for control device\n"); } static void btrfs_print_info(void) @@ -1818,10 +1890,16 @@ static int __init init_btrfs_fs(void) { int err; - err = btrfs_init_sysfs(); + err = btrfs_hash_init(); if (err) return err; + btrfs_props_init(); + + err = btrfs_init_sysfs(); + if (err) + goto free_hash; + btrfs_init_compress(); err = btrfs_init_cachep(); @@ -1895,6 +1973,8 @@ free_cachep: free_compress: btrfs_exit_compress(); btrfs_exit_sysfs(); +free_hash: + btrfs_hash_exit(); return err; } @@ -1913,6 +1993,7 @@ static void __exit exit_btrfs_fs(void) btrfs_exit_sysfs(); btrfs_cleanup_fs_uuids(); btrfs_exit_compress(); + btrfs_hash_exit(); } module_init(init_btrfs_fs) |