Commit 5da6afeb authored by Josef Bacik's avatar Josef Bacik Committed by David Sterba
Browse files

btrfs: move dump_space_info to space-info.c 



We'll need this exported so we can use it in all the various was we need
to use it.  This is prep work to move reserve_metadata_bytes.

Reviewed-by: default avatarNikolay Borisov <nborisov@suse.com>
Signed-off-by: default avatarJosef Bacik <josef@toxicpanda.com>
Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
parent c2a67a76

fs/btrfs/extent-tree.c

+7 −63
Original line number Diff line number Diff line
@@ -50,9 +50,6 @@ static int alloc_reserved_tree_block(struct btrfs_trans_handle *trans, 
				     struct btrfs_delayed_extent_op *extent_op);

static int find_next_key(struct btrfs_path *path, int level,

			 struct btrfs_key *key);

static void dump_space_info(struct btrfs_fs_info *fs_info,

			    struct btrfs_space_info *info, u64 bytes,

			    int dump_block_groups);



static noinline int

block_group_cache_done(struct btrfs_block_group_cache *cache)
@@ -4196,7 +4193,7 @@ void check_system_chunk(struct btrfs_trans_handle *trans, u64 type) 
	if (left < thresh && btrfs_test_opt(fs_info, ENOSPC_DEBUG)) {

		btrfs_info(fs_info, "left=%llu, need=%llu, flags=%llu",

			   left, thresh, type);

		dump_space_info(fs_info, info, 0, 0);

		btrfs_dump_space_info(fs_info, info, 0, 0);

	}



	if (left < thresh) {
@@ -5038,7 +5035,7 @@ static int reserve_metadata_bytes(struct btrfs_root *root, 
					      orig_bytes, 1);



		if (btrfs_test_opt(fs_info, ENOSPC_DEBUG))

			dump_space_info(fs_info, block_rsv->space_info,

			btrfs_dump_space_info(fs_info, block_rsv->space_info,

					      orig_bytes, 0);

	}

	return ret;
@@ -7644,60 +7641,6 @@ loop: 
	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)

{

	struct btrfs_block_group_cache *cache;

	int index = 0;



	spin_lock(&info->lock);

	btrfs_info(fs_info, "space_info %llu has %llu free, is %sfull",

		   info->flags,

		   info->total_bytes - btrfs_space_info_used(info, true),

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

	btrfs_info(fs_info,

		"space_info total=%llu, used=%llu, pinned=%llu, reserved=%llu, may_use=%llu, readonly=%llu",

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

		info->bytes_reserved, info->bytes_may_use,

		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;



	down_read(&info->groups_sem);

again:

	list_for_each_entry(cache, &info->block_groups[index], list) {

		spin_lock(&cache->lock);

		btrfs_info(fs_info,

			"block group %llu has %llu bytes, %llu used %llu pinned %llu reserved %s",

			cache->key.objectid, cache->key.offset,

			btrfs_block_group_used(&cache->item), cache->pinned,

			cache->reserved, cache->ro ? "[readonly]" : "");

		btrfs_dump_free_space(cache, bytes);

		spin_unlock(&cache->lock);

	}

	if (++index < BTRFS_NR_RAID_TYPES)

		goto again;

	up_read(&info->groups_sem);

}



/*

 * btrfs_reserve_extent - entry point to the extent allocator. Tries to find a

 *			  hole that is at least as big as @num_bytes.
@@ -7778,7 +7721,8 @@ again: 
				  "allocation failed flags %llu, wanted %llu",

				  flags, num_bytes);

			if (sinfo)

				dump_space_info(fs_info, sinfo, num_bytes, 1);

				btrfs_dump_space_info(fs_info, sinfo,

						      num_bytes, 1);

		}

	}
@@ -9295,7 +9239,7 @@ out: 
		btrfs_info(cache->fs_info,

			"sinfo_used=%llu bg_num_bytes=%llu min_allocable=%llu",

			sinfo_used, num_bytes, min_allocable_bytes);

		dump_space_info(cache->fs_info, cache->space_info, 0, 0);

		btrfs_dump_space_info(cache->fs_info, cache->space_info, 0, 0);

	}

	return ret;

}
@@ -9776,7 +9720,7 @@ int btrfs_free_block_groups(struct btrfs_fs_info *info) 
		if (WARN_ON(space_info->bytes_pinned > 0 ||

			    space_info->bytes_reserved > 0 ||

			    space_info->bytes_may_use > 0))

			dump_space_info(info, space_info, 0, 0);

			btrfs_dump_space_info(info, space_info, 0, 0);

		list_del(&space_info->list);

		for (i = 0; i < BTRFS_NR_RAID_TYPES; i++) {

			struct kobject *kobj;

fs/btrfs/space-info.c

+55 −0
Original line number Diff line number Diff line
@@ -4,6 +4,7 @@ 
#include "space-info.h"

#include "sysfs.h"

#include "volumes.h"

#include "free-space-cache.h"



u64 btrfs_space_info_used(struct btrfs_space_info *s_info,

			  bool may_use_included)
@@ -346,3 +347,57 @@ again: 
		goto again;

	}

}



#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)



void btrfs_dump_space_info(struct btrfs_fs_info *fs_info,

			   struct btrfs_space_info *info, u64 bytes,

			   int dump_block_groups)

{

	struct btrfs_block_group_cache *cache;

	int index = 0;



	spin_lock(&info->lock);

	btrfs_info(fs_info, "space_info %llu has %llu free, is %sfull",

		   info->flags,

		   info->total_bytes - btrfs_space_info_used(info, true),

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

	btrfs_info(fs_info,

		"space_info total=%llu, used=%llu, pinned=%llu, reserved=%llu, may_use=%llu, readonly=%llu",

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

		info->bytes_reserved, info->bytes_may_use,

		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;



	down_read(&info->groups_sem);

again:

	list_for_each_entry(cache, &info->block_groups[index], list) {

		spin_lock(&cache->lock);

		btrfs_info(fs_info,

			"block group %llu has %llu bytes, %llu used %llu pinned %llu reserved %s",

			cache->key.objectid, cache->key.offset,

			btrfs_block_group_used(&cache->item), cache->pinned,

			cache->reserved, cache->ro ? "[readonly]" : "");

		btrfs_dump_free_space(cache, bytes);

		spin_unlock(&cache->lock);

	}

	if (++index < BTRFS_NR_RAID_TYPES)

		goto again;

	up_read(&info->groups_sem);

}

fs/btrfs/space-info.h

+3 −0
Original line number Diff line number Diff line
@@ -126,5 +126,8 @@ int btrfs_can_overcommit(struct btrfs_fs_info *fs_info, 
			 struct btrfs_space_info *space_info, u64 bytes,

			 enum btrfs_reserve_flush_enum flush,

			 bool system_chunk);

void btrfs_dump_space_info(struct btrfs_fs_info *fs_info,

			   struct btrfs_space_info *info, u64 bytes,

			   int dump_block_groups);



#endif /* BTRFS_SPACE_INFO_H */

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