On 06/11/2015 01:24, Andrew Jones wrote:
> This is a fix just due to being too much of a type-A person.
> I noticed the issue while reading over the function, and
> decided to fix it, even though it's unlikely to be a problem
> ever because top is read-mostly (like written once, then only
> read, type of mostly).
>
> Signed-off-by: Andrew Jones <drjo...@redhat.com>
> ---
> lib/alloc.c | 8 +++++---
> 1 file changed, 5 insertions(+), 3 deletions(-)
>
> diff --git a/lib/alloc.c b/lib/alloc.c
> index ad6761430c965..34f71a337d868 100644
> --- a/lib/alloc.c
> +++ b/lib/alloc.c
> @@ -61,15 +61,17 @@ static phys_addr_t phys_alloc_aligned_safe(phys_addr_t
> size,
> {
> static bool warned = false;
> phys_addr_t addr, size_orig = size;
> - u64 top_safe = top;
> + u64 top_safe;
> +
> + spin_lock(&lock);
> +
> + top_safe = top;
>
> if (safe && sizeof(long) == 4)
> top_safe = MIN(top, 1ULL << 32);
>
> align = MAX(align, align_min);
>
> - spin_lock(&lock);
> -
> addr = ALIGN(base, align);
> size += addr - base;
>
>
Applied, thanks.
Paolo
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