On Mon, Apr 15, 2019 at 09:29:10AM +0100, fdmanana@xxxxxxxxxx wrote:
> From: Filipe Manana <fdmanana@xxxxxxxx>
>
> As of commit bb739cf08e8f32 ("btrfs: btrfs_check_shared should manage its
> own transaction") btrfs_check_shared() manages its own transaction, it
> no longer receives a transaction handle as parameter. Since it is used
> only in the fiemap path, the ulists it needs to use are allocated before
> it grabs a transaction handle and we are not holding any locks that could
> cause a deadlock in case reclaim happens during a memory allocation, we
> can use the GFP_KERNEL flag to allocate the ulists instead of GFP_NOFS.
> So do that switch.
>
> Signed-off-by: Filipe Manana <fdmanana@xxxxxxxx>
Reviewed-by: David Sterba <dsterba@xxxxxxxx>
