diff options
Diffstat (limited to 'fs/btrfs/super.c')
| -rw-r--r-- | fs/btrfs/super.c | 64 |
1 files changed, 32 insertions, 32 deletions
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c index 2ff7cd2db25f..9f179d4832d5 100644 --- a/fs/btrfs/super.c +++ b/fs/btrfs/super.c @@ -52,7 +52,6 @@ #include "export.h" #include "compression.h" - static struct super_operations btrfs_super_ops; static void btrfs_put_super(struct super_block *sb) @@ -67,8 +66,8 @@ static void btrfs_put_super(struct super_block *sb) enum { Opt_degraded, Opt_subvol, Opt_device, Opt_nodatasum, Opt_nodatacow, Opt_max_extent, Opt_max_inline, Opt_alloc_start, Opt_nobarrier, - Opt_ssd, Opt_thread_pool, Opt_noacl, Opt_compress, Opt_notreelog, - Opt_ratio, Opt_flushoncommit, Opt_err, + Opt_ssd, Opt_nossd, Opt_ssd_spread, Opt_thread_pool, Opt_noacl, + Opt_compress, Opt_notreelog, Opt_ratio, Opt_flushoncommit, Opt_err, }; static match_table_t tokens = { @@ -84,6 +83,8 @@ static match_table_t tokens = { {Opt_thread_pool, "thread_pool=%d"}, {Opt_compress, "compress"}, {Opt_ssd, "ssd"}, + {Opt_ssd_spread, "ssd_spread"}, + {Opt_nossd, "nossd"}, {Opt_noacl, "noacl"}, {Opt_notreelog, "notreelog"}, {Opt_flushoncommit, "flushoncommit"}, @@ -158,7 +159,7 @@ int btrfs_parse_options(struct btrfs_root *root, char *options) */ break; case Opt_nodatasum: - printk(KERN_INFO "btrfs: setting nodatacsum\n"); + printk(KERN_INFO "btrfs: setting nodatasum\n"); btrfs_set_opt(info->mount_opt, NODATASUM); break; case Opt_nodatacow: @@ -174,6 +175,19 @@ int btrfs_parse_options(struct btrfs_root *root, char *options) printk(KERN_INFO "btrfs: use ssd allocation scheme\n"); btrfs_set_opt(info->mount_opt, SSD); 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); + break; + case Opt_nossd: + printk(KERN_INFO "btrfs: not using ssd allocation " + "scheme\n"); + btrfs_set_opt(info->mount_opt, NOSSD); + btrfs_clear_opt(info->mount_opt, SSD); + btrfs_clear_opt(info->mount_opt, SSD_SPREAD); + break; case Opt_nobarrier: printk(KERN_INFO "btrfs: turning off barriers\n"); btrfs_set_opt(info->mount_opt, NOBARRIER); @@ -322,7 +336,7 @@ static int btrfs_fill_super(struct super_block *sb, struct dentry *root_dentry; struct btrfs_super_block *disk_super; struct btrfs_root *tree_root; - struct btrfs_inode *bi; + struct btrfs_key key; int err; sb->s_maxbytes = MAX_LFS_FILESIZE; @@ -341,23 +355,15 @@ static int btrfs_fill_super(struct super_block *sb, } sb->s_fs_info = tree_root; disk_super = &tree_root->fs_info->super_copy; - inode = btrfs_iget_locked(sb, BTRFS_FIRST_FREE_OBJECTID, - tree_root->fs_info->fs_root); - bi = BTRFS_I(inode); - bi->location.objectid = inode->i_ino; - bi->location.offset = 0; - bi->root = tree_root->fs_info->fs_root; - - btrfs_set_key_type(&bi->location, BTRFS_INODE_ITEM_KEY); - if (!inode) { - err = -ENOMEM; + key.objectid = BTRFS_FIRST_FREE_OBJECTID; + key.type = BTRFS_INODE_ITEM_KEY; + key.offset = 0; + inode = btrfs_iget(sb, &key, tree_root->fs_info->fs_root); + if (IS_ERR(inode)) { + err = PTR_ERR(inode); goto fail_close; } - if (inode->i_state & I_NEW) { - btrfs_read_locked_inode(inode); - unlock_new_inode(inode); - } root_dentry = d_alloc_root(inode); if (!root_dentry) { @@ -388,10 +394,6 @@ int btrfs_sync_fs(struct super_block *sb, int wait) struct btrfs_root *root = btrfs_sb(sb); int ret; - if (sb->s_flags & MS_RDONLY) - return 0; - - sb->s_dirt = 0; if (!wait) { filemap_flush(root->fs_info->btree_inode->i_mapping); return 0; @@ -402,7 +404,6 @@ int btrfs_sync_fs(struct super_block *sb, int wait) trans = btrfs_start_transaction(root, 1); ret = btrfs_commit_transaction(trans, root); - sb->s_dirt = 0; return ret; } @@ -433,7 +434,11 @@ static int btrfs_show_options(struct seq_file *seq, struct vfsmount *vfs) seq_printf(seq, ",thread_pool=%d", info->thread_pool_size); if (btrfs_test_opt(root, COMPRESS)) seq_puts(seq, ",compress"); - if (btrfs_test_opt(root, SSD)) + if (btrfs_test_opt(root, NOSSD)) + seq_puts(seq, ",nossd"); + if (btrfs_test_opt(root, SSD_SPREAD)) + seq_puts(seq, ",ssd_spread"); + else if (btrfs_test_opt(root, SSD)) seq_puts(seq, ",ssd"); if (btrfs_test_opt(root, NOTREELOG)) seq_puts(seq, ",notreelog"); @@ -444,11 +449,6 @@ static int btrfs_show_options(struct seq_file *seq, struct vfsmount *vfs) return 0; } -static void btrfs_write_super(struct super_block *sb) -{ - sb->s_dirt = 0; -} - static int btrfs_test_super(struct super_block *s, void *data) { struct btrfs_fs_devices *test_fs_devices = data; @@ -584,7 +584,8 @@ static int btrfs_remount(struct super_block *sb, int *flags, char *data) if (btrfs_super_log_root(&root->fs_info->super_copy) != 0) return -EINVAL; - ret = btrfs_cleanup_reloc_trees(root); + /* recover relocation */ + ret = btrfs_recover_relocation(root); WARN_ON(ret); ret = btrfs_cleanup_fs_roots(root->fs_info); @@ -678,7 +679,6 @@ static int btrfs_unfreeze(struct super_block *sb) static struct super_operations btrfs_super_ops = { .delete_inode = btrfs_delete_inode, .put_super = btrfs_put_super, - .write_super = btrfs_write_super, .sync_fs = btrfs_sync_fs, .show_options = btrfs_show_options, .write_inode = btrfs_write_inode, |