From: Thomas Gleixner <tglx@kernel.org>
To: "Vlastimil Babka (SUSE)" <vbabka@kernel.org>,
LKML <linux-kernel@vger.kernel.org>
Cc: Vlastimil Babka <vbabka@suse.cz>,
Peter Zijlstra <peterz@infradead.org>,
Alexei Starovoitov <ast@kernel.org>,
linux-mm@vger.kernel.org,
Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Subject: Re: debugobject: Make it work with deferred page initialization - again
Date: Wed, 24 Jun 2026 11:20:02 +0200 [thread overview]
Message-ID: <877bnol2gt.ffs@fw13> (raw)
In-Reply-To: <a9825502-fbb3-4a2a-91ab-b91755ab5ead@kernel.org>
On Tue, Jun 23 2026 at 22:50, Vlastimil Babka wrote:
> On 2/7/26 14:27, Thomas Gleixner wrote:
>> In preemptible context the reclaim bit is harmless and not a performance
>> issue as that's usually invoked from slow path initialization context.
>>
>> That makes debugobjects depend on PREEMPT_COUNT || !DEFERRED_STRUCT_PAGE_INIT.
>>
>> Fixes: af92793e52c3 ("slab: Introduce kmalloc_nolock() and kfree_nolock().")
>> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
>
> FYI, it should now be possible to revert this workaround:
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=335c347686e76df9d2c7d7f61b5ea627a4c5cb4c
Cool.
prev parent reply other threads:[~2026-06-24 9:20 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-07 13:27 debugobject: Make it work with deferred page initialization - again Thomas Gleixner
2026-02-07 19:23 ` Alexei Starovoitov
2026-02-09 11:39 ` Vlastimil Babka
2026-02-10 7:37 ` Sebastian Andrzej Siewior
2026-02-10 10:51 ` [tip: core/debugobjects] " tip-bot2 for Thomas Gleixner
2026-02-10 13:10 ` tip-bot2 for Thomas Gleixner
2026-06-23 20:50 ` Vlastimil Babka (SUSE)
2026-06-24 9:20 ` Thomas Gleixner [this message]
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