Commit b93fa4ac authored by Filipe Manana's avatar Filipe Manana Committed by David Sterba
Browse files

btrfs: remove check for NULL block reserve at btrfs_block_rsv_check() 



The block reserve passed to btrfs_block_rsv_check() is never NULL, so
remove the check. In case it can ever become NULL in the future, then
we'll get a pretty obvious and clear NULL pointer dereference crash and
stack trace.

Reviewed-by: default avatarJosef Bacik <josef@toxicpanda.com>
Signed-off-by: default avatarFilipe Manana <fdmanana@suse.com>
Reviewed-by: default avatarDavid Sterba <dsterba@suse.com>
Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
parent 5c1f2c6b

fs/btrfs/block-rsv.c

+0 −3
Original line number Diff line number Diff line
@@ -232,9 +232,6 @@ int btrfs_block_rsv_check(struct btrfs_block_rsv *block_rsv, int min_percent) 
	u64 num_bytes = 0;

	int ret = -ENOSPC;



	if (!block_rsv)

		return 0;



	spin_lock(&block_rsv->lock);

	num_bytes = mult_perc(block_rsv->size, min_percent);

	if (block_rsv->reserved >= num_bytes)