Commit 1bfd4767 authored May 03, 2022 by Naohiro Aota Committed by David Sterba May 16, 2022

btrfs: zoned: introduce btrfs_zoned_bg_is_full



Introduce a wrapper to check if all the space in a block group is
allocated or not.

Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Naohiro Aota <naohiro.aota@wdc.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

parent cf4f03c3

fs/btrfs/extent-tree.c

+1 −2

Original line number	Diff line number	Diff line
		@@ -3800,8 +3800,7 @@ static int do_allocation_zoned(struct btrfs_block_group *block_group,

		/* Check RO and no space case before trying to activate it */
		spin_lock(&block_group->lock);
		if (block_group->ro \|\|
		block_group->alloc_offset == block_group->zone_capacity) {
		if (block_group->ro \|\| btrfs_zoned_bg_is_full(block_group)) {
		ret = 1;
		/*
		* May need to clear fs_info->{treelog,data_reloc}_bg.

fs/btrfs/zoned.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -1836,7 +1836,7 @@ bool btrfs_zone_activate(struct btrfs_block_group *block_group)
		}

		/* No space left */
		if (block_group->alloc_offset == block_group->zone_capacity) {
		if (btrfs_zoned_bg_is_full(block_group)) {
		ret = false;
		goto out_unlock;
		}

fs/btrfs/zoned.h

+6 −0

Original line number	Diff line number	Diff line
		@@ -372,4 +372,10 @@ static inline void btrfs_zoned_data_reloc_unlock(struct btrfs_inode *inode)
		mutex_unlock(&root->fs_info->zoned_data_reloc_io_lock);
		}

		static inline bool btrfs_zoned_bg_is_full(const struct btrfs_block_group *bg)
		{
		ASSERT(btrfs_is_zoned(bg->fs_info));
		return (bg->alloc_offset == bg->zone_capacity);
		}

		#endif