Commit f485c9ee authored by Josef Bacik's avatar Josef Bacik Committed by David Sterba
Browse files

Btrfs: fix delalloc reservation amount tracepoint 



We can sometimes drop the reservation we had for our inode, so we need to remove
that amount from to_reserve so that our tracepoint reports a valid amount of
space.

Signed-off-by: default avatarJosef Bacik <jbacik@fb.com>
Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
parent c51e7bb1

fs/btrfs/extent-tree.c

+3 −1
Original line number Diff line number Diff line
@@ -6000,8 +6000,10 @@ int btrfs_delalloc_reserve_metadata(struct inode *inode, u64 num_bytes) 


	spin_lock(&BTRFS_I(inode)->lock);

	if (test_and_set_bit(BTRFS_INODE_DELALLOC_META_RESERVED,

			     &BTRFS_I(inode)->runtime_flags))

			     &BTRFS_I(inode)->runtime_flags)) {

		to_reserve -= btrfs_calc_trans_metadata_size(root, 1);

		release_extra = true;

	}

	BTRFS_I(inode)->reserved_extents += nr_extents;

	spin_unlock(&BTRFS_I(inode)->lock);

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