From bb3ecd59f23b9cef8a657200c7455eb3f320682a Mon Sep 17 00:00:00 2001 From: Qu Wenruo Date: Tue, 13 Jun 2017 17:19:26 +0800 Subject: btrfs-progs: Refactor btrfs_readahead_tree_block to use btrfs_fs_info Signed-off-by: Qu Wenruo Signed-off-by: David Sterba --- cmds-check.c | 8 +++++--- ctree.c | 2 +- disk-io.c | 8 ++++---- disk-io.h | 4 ++-- image/main.c | 2 +- 5 files changed, 13 insertions(+), 11 deletions(-) diff --git a/cmds-check.c b/cmds-check.c index e49b529d..339297d3 100644 --- a/cmds-check.c +++ b/cmds-check.c @@ -1967,6 +1967,7 @@ out: static void reada_walk_down(struct btrfs_root *root, struct extent_buffer *node, int slot) { + struct btrfs_fs_info *fs_info = root->fs_info; u64 bytenr; u64 ptr_gen; u32 nritems; @@ -1979,11 +1980,11 @@ static void reada_walk_down(struct btrfs_root *root, return; nritems = btrfs_header_nritems(node); - blocksize = root->fs_info->nodesize; + blocksize = fs_info->nodesize; for (i = slot; i < nritems; i++) { bytenr = btrfs_node_blockptr(node, i); ptr_gen = btrfs_node_ptr_generation(node, i); - readahead_tree_block(root, bytenr, blocksize, ptr_gen); + readahead_tree_block(fs_info, bytenr, blocksize, ptr_gen); } } @@ -7610,6 +7611,7 @@ static int run_next_block(struct btrfs_root *root, struct device_extent_tree *dev_extent_cache, struct root_item_record *ri) { + struct btrfs_fs_info *fs_info = root->fs_info; struct extent_buffer *buf; struct extent_record *rec = NULL; u64 bytenr; @@ -7639,7 +7641,7 @@ static int run_next_block(struct btrfs_root *root, continue; /* fixme, get the parent transid */ - readahead_tree_block(root, bits[i].start, + readahead_tree_block(fs_info, bits[i].start, bits[i].size, 0); } } diff --git a/ctree.c b/ctree.c index a6916b30..f3c13e1c 100644 --- a/ctree.c +++ b/ctree.c @@ -1021,7 +1021,7 @@ void reada_for_search(struct btrfs_root *root, struct btrfs_path *path, if ((search >= lowest_read && search <= highest_read) || (search < lowest_read && lowest_read - search <= 32768) || (search > highest_read && search - highest_read <= 32768)) { - readahead_tree_block(root, search, blocksize, + readahead_tree_block(fs_info, search, blocksize, btrfs_node_ptr_generation(node, nr)); nread += blocksize; } diff --git a/disk-io.c b/disk-io.c index 7addaf61..686c55e7 100644 --- a/disk-io.c +++ b/disk-io.c @@ -187,17 +187,17 @@ struct extent_buffer* btrfs_find_create_tree_block( return alloc_extent_buffer(&fs_info->extent_cache, bytenr, blocksize); } -void readahead_tree_block(struct btrfs_root *root, u64 bytenr, u32 blocksize, - u64 parent_transid) +void readahead_tree_block(struct btrfs_fs_info *fs_info, u64 bytenr, + u32 blocksize, u64 parent_transid) { struct extent_buffer *eb; u64 length; struct btrfs_multi_bio *multi = NULL; struct btrfs_device *device; - eb = btrfs_find_tree_block(root->fs_info, bytenr, blocksize); + eb = btrfs_find_tree_block(fs_info, bytenr, blocksize); if (!(eb && btrfs_buffer_uptodate(eb, parent_transid)) && - !btrfs_map_block(root->fs_info, READ, bytenr, &length, &multi, 0, + !btrfs_map_block(fs_info, READ, bytenr, &length, &multi, 0, NULL)) { device = multi->stripes[0].dev; device->total_ios++; diff --git a/disk-io.h b/disk-io.h index 20520e59..b834fea4 100644 --- a/disk-io.h +++ b/disk-io.h @@ -121,8 +121,8 @@ struct extent_buffer* read_tree_block( int read_extent_data(struct btrfs_fs_info *fs_info, char *data, u64 logical, u64 *len, int mirror); -void readahead_tree_block(struct btrfs_root *root, u64 bytenr, u32 blocksize, - u64 parent_transid); +void readahead_tree_block(struct btrfs_fs_info *fs_info, u64 bytenr, + u32 blocksize, u64 parent_transid); struct extent_buffer* btrfs_find_create_tree_block( struct btrfs_fs_info *fs_info, u64 bytenr, u32 blocksize); diff --git a/image/main.c b/image/main.c index e49430db..fac9b760 100644 --- a/image/main.c +++ b/image/main.c @@ -1029,7 +1029,7 @@ static int add_extent(u64 start, u64 size, struct metadump_struct *md, return ret; md->pending_start = start; } - readahead_tree_block(md->root, start, size, 0); + readahead_tree_block(md->root->fs_info, start, size, 0); md->pending_size += size; md->data = data; return 0; -- cgit v1.2.3