From: SJ Park <sj@kernel.org>
To: "Liam R. Howlett (Google)" <liam@infradead.org>
Cc: SJ Park <sj@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Lorenzo Stoakes <ljs@kernel.org>,
Matthew Wilcox <willy@infradead.org>,
Vlastimil Babka <vbabka@kernel.org>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] tools/testing/shared: catch a failed posix_memalign()
Date: Tue, 20 Oct 2026 17:12:07 -0700 [thread overview]
Message-ID: <20261021001208.93708-1-sj@kernel.org> (raw)
In-Reply-To: <20261020033128.1934349-1-liam@infradead.org>
On Mon, 19 Oct 2026 23:31:28 -0400 "Liam R. Howlett (Google)" <liam@infradead.org> wrote:
> posix_memalign() returns zero or a positive error number and never sets
> errno, so the checks for a negative return in kmem_cache_alloc_lru() and
> kmem_cache_alloc_bulk() is not possible. A failed aligned allocation
> carries on with the pointer unset, into the constructor or the memset().
>
> Test for any non-zero return.
Nice catch, makes sense to me.
>
> Signed-off-by: Liam R. Howlett (Google) <liam@infradead.org>
Reviewed-by: SJ Park <sj@kernel.org>
Thanks,
SJ
[...]
prev parent reply other threads:[~2026-10-21 0:12 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-20 3:31 [PATCH] tools/testing/shared: catch a failed posix_memalign() Liam R. Howlett (Google)
2026-10-20 9:05 ` Lorenzo Stoakes (ARM)
2026-10-20 15:10 ` Vishal Moola (Fractile)
2026-10-21 0:12 ` SJ Park [this message]
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