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| author | Chris Mason | 2008-01-02 16:01:11 +0100 |
|---|---|---|
| committer | Chris Mason | 2008-09-25 17:03:58 +0200 |
| commit | 8f662a76c6af8eb367fa519e9bb9766040d9cea8 (patch) | |
| tree | 3072a4d35c49e2c884f41d044dec4950bf95c3b3 /fs/btrfs/extent-tree.c | |
| parent | Btrfs: Fix NULL block groups on reading the inode (diff) | |
| download | kernel-qcow2-linux-8f662a76c6af8eb367fa519e9bb9766040d9cea8.tar.gz kernel-qcow2-linux-8f662a76c6af8eb367fa519e9bb9766040d9cea8.tar.xz kernel-qcow2-linux-8f662a76c6af8eb367fa519e9bb9766040d9cea8.zip | |
Btrfs: Add readahead to the online shrinker, and a mount -o alloc_start= for testing
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/extent-tree.c')
| -rw-r--r-- | fs/btrfs/extent-tree.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index a421069e998b..d6243c2afc73 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -1630,11 +1630,11 @@ int btrfs_alloc_extent(struct btrfs_trans_handle *trans, struct btrfs_path *path; btrfs_set_stack_extent_refs(&extent_item, 1); -#if 0 - new_hint = max(hint_byte, 16ULL * 1024 * 1024 * 1024); + + new_hint = max(hint_byte, root->fs_info->alloc_start); if (new_hint < btrfs_super_total_bytes(&info->super_copy)) hint_byte = new_hint; -#endif + WARN_ON(num_bytes < root->sectorsize); ret = find_free_extent(trans, root, num_bytes, empty_size, search_start, search_end, hint_byte, ins, @@ -2239,7 +2239,7 @@ static int relocate_one_reference(struct btrfs_root *extent_root, free_extent_buffer(eb); path->lowest_level = level; - path->reada = 0; + path->reada = 2; ret = btrfs_search_slot(trans, found_root, &found_key, path, 0, 1); path->lowest_level = 0; @@ -2372,6 +2372,7 @@ int btrfs_shrink_extent_tree(struct btrfs_root *root, u64 new_size) block_group_cache = &info->block_group_cache; path = btrfs_alloc_path(); root = root->fs_info->extent_root; + path->reada = 2; again: total_found = 0; |