From 54d687c13aef3194ea1490cf6d4b5016da1cf0bb Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Sat, 29 Apr 2023 16:07:10 -0400 Subject: btrfs: move btrfs_check_trunc_cache_free_space into block-rsv.c This is completely related to block rsv's, move it out of the free space cache code and into block-rsv.c. Reviewed-by: Johannes Thumshirn Signed-off-by: Josef Bacik Signed-off-by: David Sterba --- fs/btrfs/block-rsv.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) (limited to 'fs/btrfs/block-rsv.c') diff --git a/fs/btrfs/block-rsv.c b/fs/btrfs/block-rsv.c index ac18c43fadad..6279d200cf83 100644 --- a/fs/btrfs/block-rsv.c +++ b/fs/btrfs/block-rsv.c @@ -541,3 +541,22 @@ try_reserve: return ERR_PTR(ret); } + +int btrfs_check_trunc_cache_free_space(struct btrfs_fs_info *fs_info, + struct btrfs_block_rsv *rsv) +{ + u64 needed_bytes; + int ret; + + /* 1 for slack space, 1 for updating the inode */ + needed_bytes = btrfs_calc_insert_metadata_size(fs_info, 1) + + btrfs_calc_metadata_size(fs_info, 1); + + spin_lock(&rsv->lock); + if (rsv->reserved < needed_bytes) + ret = -ENOSPC; + else + ret = 0; + spin_unlock(&rsv->lock); + return ret; +} -- cgit