From c9b577c01ac91a82fce697c445cfac2bcd8a49f6 Mon Sep 17 00:00:00 2001 From: Nikolay Borisov Date: Wed, 7 Feb 2018 17:55:38 +0200 Subject: [PATCH] btrfs: Open code btrfs_write_and_wait_marked_extents btrfs_write_and_wait_transaction is essentially a wrapper of btrfs_write_and_wait_marked_extents with the addition of calling clear_btree_io_tree. Having the code split doesn't really bring any benefit. Open code the later into the former and add proper documentation header. Signed-off-by: Nikolay Borisov Reviewed-by: David Sterba [ reformat comment ] Signed-off-by: David Sterba --- fs/btrfs/transaction.c | 45 ++++++++++++++++++------------------------ 1 file changed, 19 insertions(+), 26 deletions(-) diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c index beca25635787..03fbb8854a1b 100644 --- a/fs/btrfs/transaction.c +++ b/fs/btrfs/transaction.c @@ -1083,40 +1083,33 @@ int btrfs_wait_tree_log_extents(struct btrfs_root *log_root, int mark) } /* - * when btree blocks are allocated, they have some corresponding bits set for - * them in one of two extent_io trees. This is used to make sure all of - * those extents are on disk for transaction or log commit + * When btree blocks are allocated the corresponding extents are marked dirty. + * This function ensures such extents are persisted on disk for transaction or + * log commit. + * + * @trans: transaction whose dirty pages we'd like to write */ -static int btrfs_write_and_wait_marked_extents(struct btrfs_fs_info *fs_info, - struct extent_io_tree *dirty_pages, int mark) -{ - int ret; - int ret2; - struct blk_plug plug; - - blk_start_plug(&plug); - ret = btrfs_write_marked_extents(fs_info, dirty_pages, mark); - blk_finish_plug(&plug); - ret2 = btrfs_wait_extents(fs_info, dirty_pages); - - if (ret) - return ret; - if (ret2) - return ret2; - return 0; -} - static int btrfs_write_and_wait_transaction(struct btrfs_trans_handle *trans, struct btrfs_fs_info *fs_info) { int ret; + int ret2; + struct extent_io_tree *dirty_pages = &trans->transaction->dirty_pages; + struct blk_plug plug; + + blk_start_plug(&plug); + ret = btrfs_write_marked_extents(fs_info, dirty_pages, EXTENT_DIRTY); + blk_finish_plug(&plug); + ret2 = btrfs_wait_extents(fs_info, dirty_pages); - ret = btrfs_write_and_wait_marked_extents(fs_info, - &trans->transaction->dirty_pages, - EXTENT_DIRTY); clear_btree_io_tree(&trans->transaction->dirty_pages); - return ret; + if (ret) + return ret; + else if (ret2) + return ret2; + else + return 0; } /*