X-Git-Url: http://pileus.org/git/?a=blobdiff_plain;f=fs%2Fbtrfs%2Fioctl.c;h=b0134892dc70cdf69be04ad44e3e52183a86fcb0;hb=e7651b819e90da924991d727d3c007200a18670d;hp=21da5762b0b1b33d193f3bd7f664995a43062bd6;hpb=1b17366d695c8ab03f98d0155357e97a427e1dce;p=~andy%2Flinux diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index 21da5762b0b..b0134892dc7 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -56,6 +56,8 @@ #include "rcu-string.h" #include "send.h" #include "dev-replace.h" +#include "props.h" +#include "sysfs.h" static int btrfs_clone(struct inode *src, struct inode *inode, u64 off, u64 olen, u64 olen_aligned, u64 destoff); @@ -190,6 +192,9 @@ static int btrfs_ioctl_setflags(struct file *file, void __user *arg) unsigned int i_oldflags; umode_t mode; + if (!inode_owner_or_capable(inode)) + return -EPERM; + if (btrfs_root_readonly(root)) return -EROFS; @@ -200,9 +205,6 @@ static int btrfs_ioctl_setflags(struct file *file, void __user *arg) if (ret) return ret; - if (!inode_owner_or_capable(inode)) - return -EACCES; - ret = mnt_want_write_file(file); if (ret) return ret; @@ -280,9 +282,25 @@ static int btrfs_ioctl_setflags(struct file *file, void __user *arg) if (flags & FS_NOCOMP_FL) { ip->flags &= ~BTRFS_INODE_COMPRESS; ip->flags |= BTRFS_INODE_NOCOMPRESS; + + ret = btrfs_set_prop(inode, "btrfs.compression", NULL, 0, 0); + if (ret && ret != -ENODATA) + goto out_drop; } else if (flags & FS_COMPR_FL) { + const char *comp; + ip->flags |= BTRFS_INODE_COMPRESS; ip->flags &= ~BTRFS_INODE_NOCOMPRESS; + + if (root->fs_info->compress_type == BTRFS_COMPRESS_LZO) + comp = "lzo"; + else + comp = "zlib"; + ret = btrfs_set_prop(inode, "btrfs.compression", + comp, strlen(comp), 0); + if (ret) + goto out_drop; + } else { ip->flags &= ~(BTRFS_INODE_COMPRESS | BTRFS_INODE_NOCOMPRESS); } @@ -392,6 +410,7 @@ static noinline int create_subvol(struct inode *dir, struct btrfs_root *new_root; struct btrfs_block_rsv block_rsv; struct timespec cur_time = CURRENT_TIME; + struct inode *inode; int ret; int err; u64 objectid; @@ -417,7 +436,9 @@ static noinline int create_subvol(struct inode *dir, trans = btrfs_start_transaction(root, 0); if (IS_ERR(trans)) { ret = PTR_ERR(trans); - goto out; + btrfs_subvolume_release_metadata(root, &block_rsv, + qgroup_reserved); + return ret; } trans->block_rsv = &block_rsv; trans->bytes_reserved = block_rsv.size; @@ -500,7 +521,7 @@ static noinline int create_subvol(struct inode *dir, btrfs_record_root_in_trans(trans, new_root); - ret = btrfs_create_subvol_root(trans, new_root, new_dirid); + ret = btrfs_create_subvol_root(trans, new_root, root, new_dirid); if (ret) { /* We potentially lose an unused inode item here */ btrfs_abort_transaction(trans, root, ret); @@ -542,6 +563,8 @@ static noinline int create_subvol(struct inode *dir, fail: trans->block_rsv = NULL; trans->bytes_reserved = 0; + btrfs_subvolume_release_metadata(root, &block_rsv, qgroup_reserved); + if (async_transid) { *async_transid = trans->transid; err = btrfs_commit_transaction_async(trans, root, 1); @@ -553,10 +576,12 @@ fail: if (err && !ret) ret = err; - if (!ret) - d_instantiate(dentry, btrfs_lookup_dentry(dir, dentry)); -out: - btrfs_subvolume_release_metadata(root, &block_rsv, qgroup_reserved); + if (!ret) { + inode = btrfs_lookup_dentry(dir, dentry); + if (IS_ERR(inode)) + return PTR_ERR(inode); + d_instantiate(dentry, inode); + } return ret; } @@ -642,7 +667,7 @@ static int create_snapshot(struct btrfs_root *root, struct inode *dir, ret = PTR_ERR(inode); goto fail; } - BUG_ON(!inode); + d_instantiate(dentry, inode); ret = 0; fail: @@ -1011,7 +1036,7 @@ out: static int cluster_pages_for_defrag(struct inode *inode, struct page **pages, unsigned long start_index, - int num_pages) + unsigned long num_pages) { unsigned long file_end; u64 isize = i_size_read(inode); @@ -1169,8 +1194,8 @@ int btrfs_defrag_file(struct inode *inode, struct file *file, int defrag_count = 0; int compress_type = BTRFS_COMPRESS_ZLIB; int extent_thresh = range->extent_thresh; - int max_cluster = (256 * 1024) >> PAGE_CACHE_SHIFT; - int cluster = max_cluster; + unsigned long max_cluster = (256 * 1024) >> PAGE_CACHE_SHIFT; + unsigned long cluster = max_cluster; u64 new_align = ~((u64)128 * 1024 - 1); struct page **pages = NULL; @@ -1254,7 +1279,7 @@ int btrfs_defrag_file(struct inode *inode, struct file *file, break; if (btrfs_defrag_cancelled(root->fs_info)) { - printk(KERN_DEBUG "btrfs: defrag_file cancelled\n"); + printk(KERN_DEBUG "BTRFS: defrag_file cancelled\n"); ret = -EAGAIN; break; } @@ -1416,20 +1441,20 @@ static noinline int btrfs_ioctl_resize(struct file *file, ret = -EINVAL; goto out_free; } - printk(KERN_INFO "btrfs: resizing devid %llu\n", devid); + btrfs_info(root->fs_info, "resizing devid %llu", devid); } device = btrfs_find_device(root->fs_info, devid, NULL, NULL); if (!device) { - printk(KERN_INFO "btrfs: resizer unable to find device %llu\n", + btrfs_info(root->fs_info, "resizer unable to find device %llu", devid); ret = -ENODEV; goto out_free; } if (!device->writeable) { - printk(KERN_INFO "btrfs: resizer unable to apply on " - "readonly device %llu\n", + btrfs_info(root->fs_info, + "resizer unable to apply on readonly device %llu", devid); ret = -EPERM; goto out_free; @@ -1466,6 +1491,10 @@ static noinline int btrfs_ioctl_resize(struct file *file, } new_size = old_size - new_size; } else if (mod > 0) { + if (new_size > ULLONG_MAX - old_size) { + ret = -EINVAL; + goto out_free; + } new_size = old_size + new_size; } @@ -1481,7 +1510,7 @@ static noinline int btrfs_ioctl_resize(struct file *file, do_div(new_size, root->sectorsize); new_size *= root->sectorsize; - printk_in_rcu(KERN_INFO "btrfs: new size for %s is %llu\n", + printk_in_rcu(KERN_INFO "BTRFS: new size for %s is %llu\n", rcu_str_deref(device->name), new_size); if (new_size > old_size) { @@ -1542,9 +1571,15 @@ static noinline int btrfs_ioctl_snap_create_transid(struct file *file, src_inode = file_inode(src.file); if (src_inode->i_sb != file_inode(file)->i_sb) { - printk(KERN_INFO "btrfs: Snapshot src from " - "another FS\n"); + btrfs_info(BTRFS_I(src_inode)->root->fs_info, + "Snapshot src from another FS"); ret = -EINVAL; + } else if (!inode_owner_or_capable(src_inode)) { + /* + * Subvolume creation is not restricted, but snapshots + * are limited to own subvolumes only + */ + ret = -EPERM; } else { ret = btrfs_mksubvol(&file->f_path, name, namelen, BTRFS_I(src_inode)->root, @@ -1662,6 +1697,9 @@ static noinline int btrfs_ioctl_subvol_setflags(struct file *file, u64 flags; int ret = 0; + if (!inode_owner_or_capable(inode)) + return -EPERM; + ret = mnt_want_write_file(file); if (ret) goto out; @@ -1686,11 +1724,6 @@ static noinline int btrfs_ioctl_subvol_setflags(struct file *file, goto out_drop_write; } - if (!inode_owner_or_capable(inode)) { - ret = -EACCES; - goto out_drop_write; - } - down_write(&root->fs_info->subvol_sem); /* nothing to do */ @@ -1698,12 +1731,28 @@ static noinline int btrfs_ioctl_subvol_setflags(struct file *file, goto out_drop_sem; root_flags = btrfs_root_flags(&root->root_item); - if (flags & BTRFS_SUBVOL_RDONLY) + if (flags & BTRFS_SUBVOL_RDONLY) { btrfs_set_root_flags(&root->root_item, root_flags | BTRFS_ROOT_SUBVOL_RDONLY); - else - btrfs_set_root_flags(&root->root_item, + } else { + /* + * Block RO -> RW transition if this subvolume is involved in + * send + */ + spin_lock(&root->root_item_lock); + if (root->send_in_progress == 0) { + btrfs_set_root_flags(&root->root_item, root_flags & ~BTRFS_ROOT_SUBVOL_RDONLY); + spin_unlock(&root->root_item_lock); + } else { + spin_unlock(&root->root_item_lock); + btrfs_warn(root->fs_info, + "Attempt to set subvolume %llu read-write during send", + root->root_key.objectid); + ret = -EPERM; + goto out_drop_sem; + } + } trans = btrfs_start_transaction(root, 1); if (IS_ERR(trans)) { @@ -1910,7 +1959,7 @@ static noinline int search_ioctl(struct inode *inode, key.offset = (u64)-1; root = btrfs_read_fs_root_no_name(info, &key); if (IS_ERR(root)) { - printk(KERN_ERR "could not find root %llu\n", + printk(KERN_ERR "BTRFS: could not find root %llu\n", sk->tree_id); btrfs_free_path(path); return -ENOENT; @@ -2000,7 +2049,7 @@ static noinline int btrfs_search_path_in_tree(struct btrfs_fs_info *info, key.offset = (u64)-1; root = btrfs_read_fs_root_no_name(info, &key); if (IS_ERR(root)) { - printk(KERN_ERR "could not find root %llu\n", tree_id); + printk(KERN_ERR "BTRFS: could not find root %llu\n", tree_id); ret = -ENOENT; goto out; } @@ -2686,14 +2735,11 @@ out_unlock: #define BTRFS_MAX_DEDUPE_LEN (16 * 1024 * 1024) static long btrfs_ioctl_file_extent_same(struct file *file, - void __user *argp) + struct btrfs_ioctl_same_args __user *argp) { - struct btrfs_ioctl_same_args tmp; struct btrfs_ioctl_same_args *same; struct btrfs_ioctl_same_extent_info *info; - struct inode *src = file->f_dentry->d_inode; - struct file *dst_file = NULL; - struct inode *dst; + struct inode *src = file_inode(file); u64 off; u64 len; int i; @@ -2701,6 +2747,7 @@ static long btrfs_ioctl_file_extent_same(struct file *file, unsigned long size; u64 bs = BTRFS_I(src)->root->fs_info->sb->s_blocksize; bool is_admin = capable(CAP_SYS_ADMIN); + u16 count; if (!(file->f_mode & FMODE_READ)) return -EINVAL; @@ -2709,17 +2756,14 @@ static long btrfs_ioctl_file_extent_same(struct file *file, if (ret) return ret; - if (copy_from_user(&tmp, - (struct btrfs_ioctl_same_args __user *)argp, - sizeof(tmp))) { + if (get_user(count, &argp->dest_count)) { ret = -EFAULT; goto out; } - size = sizeof(tmp) + - tmp.dest_count * sizeof(struct btrfs_ioctl_same_extent_info); + size = offsetof(struct btrfs_ioctl_same_args __user, info[count]); - same = memdup_user((struct btrfs_ioctl_same_args __user *)argp, size); + same = memdup_user(argp, size); if (IS_ERR(same)) { ret = PTR_ERR(same); @@ -2756,52 +2800,35 @@ static long btrfs_ioctl_file_extent_same(struct file *file, goto out; /* pre-format output fields to sane values */ - for (i = 0; i < same->dest_count; i++) { + for (i = 0; i < count; i++) { same->info[i].bytes_deduped = 0ULL; same->info[i].status = 0; } - ret = 0; - for (i = 0; i < same->dest_count; i++) { - info = &same->info[i]; - - dst_file = fget(info->fd); - if (!dst_file) { + for (i = 0, info = same->info; i < count; i++, info++) { + struct inode *dst; + struct fd dst_file = fdget(info->fd); + if (!dst_file.file) { info->status = -EBADF; - goto next; + continue; } + dst = file_inode(dst_file.file); - if (!(is_admin || (dst_file->f_mode & FMODE_WRITE))) { + if (!(is_admin || (dst_file.file->f_mode & FMODE_WRITE))) { info->status = -EINVAL; - goto next; - } - - info->status = -EXDEV; - if (file->f_path.mnt != dst_file->f_path.mnt) - goto next; - - dst = dst_file->f_dentry->d_inode; - if (src->i_sb != dst->i_sb) - goto next; - - if (S_ISDIR(dst->i_mode)) { + } else if (file->f_path.mnt != dst_file.file->f_path.mnt) { + info->status = -EXDEV; + } else if (S_ISDIR(dst->i_mode)) { info->status = -EISDIR; - goto next; - } - - if (!S_ISREG(dst->i_mode)) { + } else if (!S_ISREG(dst->i_mode)) { info->status = -EACCES; - goto next; + } else { + info->status = btrfs_extent_same(src, off, len, dst, + info->logical_offset); + if (info->status == 0) + info->bytes_deduped += len; } - - info->status = btrfs_extent_same(src, off, len, dst, - info->logical_offset); - if (info->status == 0) - info->bytes_deduped += len; - -next: - if (dst_file) - fput(dst_file); + fdput(dst_file); } ret = copy_to_user(argp, same, size); @@ -2860,12 +2887,14 @@ static int btrfs_clone(struct inode *src, struct inode *inode, * note the key will change type as we walk through the * tree. */ + path->leave_spinning = 1; ret = btrfs_search_slot(NULL, BTRFS_I(src)->root, &key, path, 0, 0); if (ret < 0) goto out; nritems = btrfs_header_nritems(path->nodes[0]); +process_slot: if (path->slots[0] >= nritems) { ret = btrfs_next_leaf(BTRFS_I(src)->root, path); if (ret < 0) @@ -2892,11 +2921,6 @@ static int btrfs_clone(struct inode *src, struct inode *inode, u8 comp; u64 endoff; - size = btrfs_item_size_nr(leaf, slot); - read_extent_buffer(leaf, buf, - btrfs_item_ptr_offset(leaf, slot), - size); - extent = btrfs_item_ptr(leaf, slot, struct btrfs_file_extent_item); comp = btrfs_file_extent_compression(leaf, extent); @@ -2915,11 +2939,20 @@ static int btrfs_clone(struct inode *src, struct inode *inode, datal = btrfs_file_extent_ram_bytes(leaf, extent); } - btrfs_release_path(path); if (key.offset + datal <= off || - key.offset >= off + len - 1) - goto next; + key.offset >= off + len - 1) { + path->slots[0]++; + goto process_slot; + } + + size = btrfs_item_size_nr(leaf, slot); + read_extent_buffer(leaf, buf, + btrfs_item_ptr_offset(leaf, slot), + size); + + btrfs_release_path(path); + path->leave_spinning = 0; memcpy(&new_key, &key, sizeof(new_key)); new_key.objectid = btrfs_ino(inode); @@ -3090,7 +3123,6 @@ static int btrfs_clone(struct inode *src, struct inode *inode, } ret = btrfs_end_transaction(trans, root); } -next: btrfs_release_path(path); key.offset++; } @@ -3218,9 +3250,17 @@ static noinline long btrfs_ioctl_clone(struct file *file, unsigned long srcfd, unlock_extent(&BTRFS_I(src)->io_tree, off, off + len - 1); out_unlock: - mutex_unlock(&src->i_mutex); - if (!same_inode) - mutex_unlock(&inode->i_mutex); + if (!same_inode) { + if (inode < src) { + mutex_unlock(&src->i_mutex); + mutex_unlock(&inode->i_mutex); + } else { + mutex_unlock(&inode->i_mutex); + mutex_unlock(&src->i_mutex); + } + } else { + mutex_unlock(&src->i_mutex); + } out_fput: fdput(src_file); out_drop_write: @@ -3343,8 +3383,8 @@ static long btrfs_ioctl_default_subvol(struct file *file, void __user *argp) if (IS_ERR_OR_NULL(di)) { btrfs_free_path(path); btrfs_end_transaction(trans, root); - printk(KERN_ERR "Umm, you don't have the default dir item, " - "this isn't going to work\n"); + btrfs_err(new_root->fs_info, "Umm, you don't have the default dir" + "item, this isn't going to work"); ret = -ENOENT; goto out; } @@ -3497,6 +3537,20 @@ out: return ret; } +static long btrfs_ioctl_global_rsv(struct btrfs_root *root, void __user *arg) +{ + struct btrfs_block_rsv *block_rsv = &root->fs_info->global_block_rsv; + u64 reserved; + + spin_lock(&block_rsv->lock); + reserved = block_rsv->reserved; + spin_unlock(&block_rsv->lock); + + if (arg && copy_to_user(arg, &reserved, sizeof(reserved))) + return -EFAULT; + return 0; +} + /* * there are many ways the trans_start and trans_end ioctls can lead * to deadlocks. They should only be used by applications that @@ -4325,6 +4379,9 @@ static long btrfs_ioctl_set_received_subvol(struct file *file, int ret = 0; int received_uuid_changed; + if (!inode_owner_or_capable(inode)) + return -EPERM; + ret = mnt_want_write_file(file); if (ret < 0) return ret; @@ -4341,11 +4398,6 @@ static long btrfs_ioctl_set_received_subvol(struct file *file, goto out; } - if (!inode_owner_or_capable(inode)) { - ret = -EACCES; - goto out; - } - sa = memdup_user(arg, sizeof(*sa)); if (IS_ERR(sa)) { ret = PTR_ERR(sa); @@ -4431,8 +4483,8 @@ static int btrfs_ioctl_get_fslabel(struct file *file, void __user *arg) len = strnlen(label, BTRFS_LABEL_SIZE); if (len == BTRFS_LABEL_SIZE) { - pr_warn("btrfs: label is too long, return the first %zu bytes\n", - --len); + btrfs_warn(root->fs_info, + "label is too long, return the first %zu bytes", --len); } ret = copy_to_user(arg, label, len); @@ -4455,7 +4507,7 @@ static int btrfs_ioctl_set_fslabel(struct file *file, void __user *arg) return -EFAULT; if (strnlen(label, BTRFS_LABEL_SIZE) == BTRFS_LABEL_SIZE) { - pr_err("btrfs: unable to set label with more than %d bytes\n", + btrfs_err(root->fs_info, "unable to set label with more than %d bytes", BTRFS_LABEL_SIZE - 1); return -EINVAL; } @@ -4480,6 +4532,166 @@ out_unlock: return ret; } +#define INIT_FEATURE_FLAGS(suffix) \ + { .compat_flags = BTRFS_FEATURE_COMPAT_##suffix, \ + .compat_ro_flags = BTRFS_FEATURE_COMPAT_RO_##suffix, \ + .incompat_flags = BTRFS_FEATURE_INCOMPAT_##suffix } + +static int btrfs_ioctl_get_supported_features(struct file *file, + void __user *arg) +{ + static struct btrfs_ioctl_feature_flags features[3] = { + INIT_FEATURE_FLAGS(SUPP), + INIT_FEATURE_FLAGS(SAFE_SET), + INIT_FEATURE_FLAGS(SAFE_CLEAR) + }; + + if (copy_to_user(arg, &features, sizeof(features))) + return -EFAULT; + + return 0; +} + +static int btrfs_ioctl_get_features(struct file *file, void __user *arg) +{ + struct btrfs_root *root = BTRFS_I(file_inode(file))->root; + struct btrfs_super_block *super_block = root->fs_info->super_copy; + struct btrfs_ioctl_feature_flags features; + + features.compat_flags = btrfs_super_compat_flags(super_block); + features.compat_ro_flags = btrfs_super_compat_ro_flags(super_block); + features.incompat_flags = btrfs_super_incompat_flags(super_block); + + if (copy_to_user(arg, &features, sizeof(features))) + return -EFAULT; + + return 0; +} + +static int check_feature_bits(struct btrfs_root *root, + enum btrfs_feature_set set, + u64 change_mask, u64 flags, u64 supported_flags, + u64 safe_set, u64 safe_clear) +{ + const char *type = btrfs_feature_set_names[set]; + char *names; + u64 disallowed, unsupported; + u64 set_mask = flags & change_mask; + u64 clear_mask = ~flags & change_mask; + + unsupported = set_mask & ~supported_flags; + if (unsupported) { + names = btrfs_printable_features(set, unsupported); + if (names) { + btrfs_warn(root->fs_info, + "this kernel does not support the %s feature bit%s", + names, strchr(names, ',') ? "s" : ""); + kfree(names); + } else + btrfs_warn(root->fs_info, + "this kernel does not support %s bits 0x%llx", + type, unsupported); + return -EOPNOTSUPP; + } + + disallowed = set_mask & ~safe_set; + if (disallowed) { + names = btrfs_printable_features(set, disallowed); + if (names) { + btrfs_warn(root->fs_info, + "can't set the %s feature bit%s while mounted", + names, strchr(names, ',') ? "s" : ""); + kfree(names); + } else + btrfs_warn(root->fs_info, + "can't set %s bits 0x%llx while mounted", + type, disallowed); + return -EPERM; + } + + disallowed = clear_mask & ~safe_clear; + if (disallowed) { + names = btrfs_printable_features(set, disallowed); + if (names) { + btrfs_warn(root->fs_info, + "can't clear the %s feature bit%s while mounted", + names, strchr(names, ',') ? "s" : ""); + kfree(names); + } else + btrfs_warn(root->fs_info, + "can't clear %s bits 0x%llx while mounted", + type, disallowed); + return -EPERM; + } + + return 0; +} + +#define check_feature(root, change_mask, flags, mask_base) \ +check_feature_bits(root, FEAT_##mask_base, change_mask, flags, \ + BTRFS_FEATURE_ ## mask_base ## _SUPP, \ + BTRFS_FEATURE_ ## mask_base ## _SAFE_SET, \ + BTRFS_FEATURE_ ## mask_base ## _SAFE_CLEAR) + +static int btrfs_ioctl_set_features(struct file *file, void __user *arg) +{ + struct btrfs_root *root = BTRFS_I(file_inode(file))->root; + struct btrfs_super_block *super_block = root->fs_info->super_copy; + struct btrfs_ioctl_feature_flags flags[2]; + struct btrfs_trans_handle *trans; + u64 newflags; + int ret; + + if (!capable(CAP_SYS_ADMIN)) + return -EPERM; + + if (copy_from_user(flags, arg, sizeof(flags))) + return -EFAULT; + + /* Nothing to do */ + if (!flags[0].compat_flags && !flags[0].compat_ro_flags && + !flags[0].incompat_flags) + return 0; + + ret = check_feature(root, flags[0].compat_flags, + flags[1].compat_flags, COMPAT); + if (ret) + return ret; + + ret = check_feature(root, flags[0].compat_ro_flags, + flags[1].compat_ro_flags, COMPAT_RO); + if (ret) + return ret; + + ret = check_feature(root, flags[0].incompat_flags, + flags[1].incompat_flags, INCOMPAT); + if (ret) + return ret; + + trans = btrfs_start_transaction(root, 1); + if (IS_ERR(trans)) + return PTR_ERR(trans); + + spin_lock(&root->fs_info->super_lock); + newflags = btrfs_super_compat_flags(super_block); + newflags |= flags[0].compat_flags & flags[1].compat_flags; + newflags &= ~(flags[0].compat_flags & ~flags[1].compat_flags); + btrfs_set_super_compat_flags(super_block, newflags); + + newflags = btrfs_super_compat_ro_flags(super_block); + newflags |= flags[0].compat_ro_flags & flags[1].compat_ro_flags; + newflags &= ~(flags[0].compat_ro_flags & ~flags[1].compat_ro_flags); + btrfs_set_super_compat_ro_flags(super_block, newflags); + + newflags = btrfs_super_incompat_flags(super_block); + newflags |= flags[0].incompat_flags & flags[1].incompat_flags; + newflags &= ~(flags[0].incompat_flags & ~flags[1].incompat_flags); + btrfs_set_super_incompat_flags(super_block, newflags); + spin_unlock(&root->fs_info->super_lock); + + return btrfs_end_transaction(trans, root); +} + long btrfs_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { @@ -4545,6 +4757,8 @@ long btrfs_ioctl(struct file *file, unsigned int return btrfs_ioctl_logical_to_ino(root, argp); case BTRFS_IOC_SPACE_INFO: return btrfs_ioctl_space_info(root, argp); + case BTRFS_IOC_GLOBAL_RSV: + return btrfs_ioctl_global_rsv(root, argp); case BTRFS_IOC_SYNC: { int ret; @@ -4598,6 +4812,12 @@ long btrfs_ioctl(struct file *file, unsigned int return btrfs_ioctl_set_fslabel(file, argp); case BTRFS_IOC_FILE_EXTENT_SAME: return btrfs_ioctl_file_extent_same(file, argp); + case BTRFS_IOC_GET_SUPPORTED_FEATURES: + return btrfs_ioctl_get_supported_features(file, argp); + case BTRFS_IOC_GET_FEATURES: + return btrfs_ioctl_get_features(file, argp); + case BTRFS_IOC_SET_FEATURES: + return btrfs_ioctl_set_features(file, argp); } return -ENOTTY;