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Commit 39581a3a authored by Wang Xiaoguang's avatar Wang Xiaoguang Committed by David Sterba
Browse files

btrfs: fix free space calculation in dump_space_info() 



In btrfs, btrfs_space_info's bytes_may_use is treated as fs used
space, as what we do in reserve_metadata_bytes() or
btrfs_alloc_data_chunk_ondemand(), so in dump_space_info(), when
calculating free space, we should also subtract btrfs_space_info's
bytes_may_use.

Signed-off-by: default avatarWang Xiaoguang <wangxg.fnst@cn.fujitsu.com>
Reviewed-by: default avatarDavid Sterba <dsterba@suse.com>
Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
parent 751bebbe

fs/btrfs/extent-tree.c

+2 −2
Original line number Diff line number Diff line
@@ -7906,8 +7906,8 @@ static void dump_space_info(struct btrfs_space_info *info, u64 bytes, 
	printk(KERN_INFO "BTRFS: space_info %llu has %llu free, is %sfull\n",

	       info->flags,

	       info->total_bytes - info->bytes_used - info->bytes_pinned -

	       info->bytes_reserved - info->bytes_readonly,

	       (info->full) ? "" : "not ");

	       info->bytes_reserved - info->bytes_readonly -

	       info->bytes_may_use, (info->full) ? "" : "not ");

	printk(KERN_INFO "BTRFS: space_info total=%llu, used=%llu, pinned=%llu, "

	       "reserved=%llu, may_use=%llu, readonly=%llu\n",

	       info->total_bytes, info->bytes_used, info->bytes_pinned,