From: Josef Bacik Date: Mon, 25 Apr 2016 13:58:18 +0000 (-0400) Subject: Btrfs: use root when checking need_async_flush X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=87241c2e68451c4d50b60af84f9a3ab119001b4c;p=openwrt%2Fstaging%2Fblogic.git Btrfs: use root when checking need_async_flush Instead of doing fs_info->fs_root in need_async_flush, which may not be set during recovery when mounting, just pass the root itself in, which makes more sense as thats what btrfs_calc_reclaim_metadata_size takes. Signed-off-by: Josef Bacik Reported-by: David Sterba Signed-off-by: David Sterba --- diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index a0ca2b5914d0..9ef8f99d5a2a 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -4936,7 +4936,7 @@ btrfs_calc_reclaim_metadata_size(struct btrfs_root *root, } static inline int need_do_async_reclaim(struct btrfs_space_info *space_info, - struct btrfs_fs_info *fs_info, u64 used) + struct btrfs_root *root, u64 used) { u64 thresh = div_factor_fine(space_info->total_bytes, 98); @@ -4944,11 +4944,12 @@ static inline int need_do_async_reclaim(struct btrfs_space_info *space_info, if ((space_info->bytes_used + space_info->bytes_reserved) >= thresh) return 0; - if (!btrfs_calc_reclaim_metadata_size(fs_info->fs_root, space_info)) + if (!btrfs_calc_reclaim_metadata_size(root, space_info)) return 0; - return (used >= thresh && !btrfs_fs_closing(fs_info) && - !test_bit(BTRFS_FS_STATE_REMOUNTING, &fs_info->fs_state)); + return (used >= thresh && !btrfs_fs_closing(root->fs_info) && + !test_bit(BTRFS_FS_STATE_REMOUNTING, + &root->fs_info->fs_state)); } static void wake_all_tickets(struct list_head *head) @@ -5193,7 +5194,7 @@ static int __reserve_metadata_bytes(struct btrfs_root *root, * the async reclaim as we will panic. */ if (!root->fs_info->log_root_recovering && - need_do_async_reclaim(space_info, root->fs_info, used) && + need_do_async_reclaim(space_info, root, used) && !work_busy(&root->fs_info->async_reclaim_work)) { trace_btrfs_trigger_flush(root->fs_info, space_info->flags,