Re: [PATCH 12/36] xfs: move struct xfs_log_iovec to xfs_log_priv.h

[Christoph Hellwig <hch@infradead.org>]

On Mon, Mar 02, 2026 at 04:15:16PM -0800, Darrick J. Wong wrote:
> +++ b/include/kmem.h
> @@ -60,6 +60,8 @@ static inline void *kmalloc(size_t size, gfp_t flags)
>  
>  #define kzalloc(size, gfp)	kvmalloc((size), (gfp) | __GFP_ZERO)
>  #define kvzalloc(size, gfp)	kzalloc((size), (gfp))
> +#define kmalloc_array(n, size, gfp)	kvmalloc((n) * (size), (gfp))
> +#define kcalloc(n, size, gfp)	kmalloc_array((n), (size), (gfp) | __GFP_ZERO)

Maybe use check_mul_overflow like the kernel version?

And avoid the overly long line and maybe even turn it into an inline?

I think it would also be cleared to split adding new core helpers into
a separate commit vs tagging it onto porting kernel code that's using
them.