On Tue, Apr 17, 2018 at 04:52:45PM +0800, Qu Wenruo wrote:
> Commit 4f5427ccce5d ("btrfs: delayed-inode: Use new qgroup meta rsv for
> delayed inode and item") merged into mainline is not the updated version
> submitted to the mail list in Dec 2017.
>
> Which lacks the following fixes:
>
> 1) Remove btrfs_qgroup_convert_reserved_meta() call in
> btrfs_delayed_item_release_metadata()
> 2) Remove btrfs_qgroup_reserve_meta_prealloc() call in
> btrfs_delayed_inode_reserve_metadata()
>
> Those fixes will resolve unexpected EDQUOT problems.
>
> Fixes: 4f5427ccce5d ("btrfs: delayed-inode: Use new qgroup meta rsv for delayed inode and item")
> Signed-off-by: Qu Wenruo <wqu@xxxxxxxx>
Added to 4.17 queue, thanks.
> @@ -569,6 +569,12 @@ static int btrfs_delayed_item_reserve_metadata(struct btrfs_trans_handle *trans,
> dst_rsv = &fs_info->delayed_block_rsv;
>
> num_bytes = btrfs_calc_trans_metadata_size(fs_info, 1);
> +
> + /*
> + * Here we migrate space rsv from transaction rsv, since have
> + * already reserved space when starting a transaction.
> + * So no need to reserve qgroup space here.
> + */
Please format the comments to the full line width.
> @@ -647,7 +657,9 @@ static int btrfs_delayed_inode_reserve_metadata(
> "delayed_inode",
> btrfs_ino(inode),
> num_bytes, 1);
> - }
> + } else
> + btrfs_qgroup_free_meta_prealloc(root,
> + fs_info->nodesize);
Please don't diverge from the coding style, I'm fixing such issues but,
you know.
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