From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx2.suse.de ([195.135.220.15]:40831 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751004AbdGLWTK (ORCPT ); Wed, 12 Jul 2017 18:19:10 -0400 From: Edmund Nadolski To: enadolski@suse.com, dsterba@suse.cz, jeffm@suse.com, linux-btrfs@vger.kernel.org, lufq.fnst@cn.fujitsu.com Subject: [PATCH v3 11/13] btrfs: add cond_resched() calls when resolving backrefs Date: Wed, 12 Jul 2017 16:20:09 -0600 Message-Id: <20170712222011.26705-5-enadolski@suse.com> In-Reply-To: <20170712222011.26705-1-enadolski@suse.com> References: <20170712222011.26705-1-enadolski@suse.com> Sender: linux-btrfs-owner@vger.kernel.org List-ID: Since backref resolution is CPU-intensive, the cond_resched calls should help alleviate soft lockup occurences. Signed-off-by: Edmund Nadolski Signed-off-by: Jeff Mahoney --- fs/btrfs/backref.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c index 19c9e92..c1882e5 100644 --- a/fs/btrfs/backref.c +++ b/fs/btrfs/backref.c @@ -660,6 +660,7 @@ static int resolve_indirect_refs(struct btrfs_fs_info *fs_info, prelim_ref_insert(fs_info, &preftrees->direct, ref); ulist_reinit(parents); + cond_resched(); } out: ulist_free(parents); @@ -702,6 +703,7 @@ static int add_missing_keys(struct btrfs_fs_info *fs_info, btrfs_tree_read_unlock(eb); free_extent_buffer(eb); prelim_ref_insert(fs_info, &preftrees->indirect, ref); + cond_resched(); } return 0; } @@ -1243,6 +1245,7 @@ static int find_parent_nodes(struct btrfs_trans_handle *trans, } eie = NULL; } + cond_resched(); } out: -- 2.10.2