[PATCH 08/42] btrfs: dump block_rsv whe dumping space info

[Josef Bacik]

For enospc_debug having the block rsvs is super helpful to see if we've
done something wrong.

Signed-off-by: Josef Bacik <jo...@toxicpanda.com>
Reviewed-by: Omar Sandoval <osan...@fb.com>
Reviewed-by: David Sterba <dste...@suse.com>
---
 fs/btrfs/extent-tree.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index da73b3e5bc39..c9913c59686b 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -7918,6 +7918,15 @@ static noinline int find_free_extent(struct 
btrfs_fs_info *fs_info,
        return ret;
 }
 
+#define DUMP_BLOCK_RSV(fs_info, rsv_name)                              \
+do {                                                                   \
+       struct btrfs_block_rsv *__rsv = &(fs_info)->rsv_name;           \
+       spin_lock(&__rsv->lock);                                        \
+       btrfs_info(fs_info, #rsv_name ": size %llu reserved %llu",      \
+                  __rsv->size, __rsv->reserved);                       \
+       spin_unlock(&__rsv->lock);                                      \
+} while (0)
+
 static void dump_space_info(struct btrfs_fs_info *fs_info,
                            struct btrfs_space_info *info, u64 bytes,
                            int dump_block_groups)
@@ -7937,6 +7946,12 @@ static void dump_space_info(struct btrfs_fs_info 
*fs_info,
                info->bytes_readonly);
        spin_unlock(&info->lock);
 
+       DUMP_BLOCK_RSV(fs_info, global_block_rsv);
+       DUMP_BLOCK_RSV(fs_info, trans_block_rsv);
+       DUMP_BLOCK_RSV(fs_info, chunk_block_rsv);
+       DUMP_BLOCK_RSV(fs_info, delayed_block_rsv);
+       DUMP_BLOCK_RSV(fs_info, delayed_refs_rsv);
+
        if (!dump_block_groups)
                return;
 
-- 
2.14.3