From: Alexei Starovoitov <alexei.starovoitov@gmail.com>
To: Vlastimil Babka <vbabka@suse.cz>
Cc: bpf <bpf@vger.kernel.org>, linux-mm <linux-mm@kvack.org>,
Harry Yoo <harry.yoo@oracle.com>,
Shakeel Butt <shakeel.butt@linux.dev>,
Michal Hocko <mhocko@suse.com>,
Sebastian Sewior <bigeasy@linutronix.de>,
Andrii Nakryiko <andrii@kernel.org>,
Kumar Kartikeya Dwivedi <memxor@gmail.com>,
Andrew Morton <akpm@linux-foundation.org>,
Peter Zijlstra <peterz@infradead.org>,
Steven Rostedt <rostedt@goodmis.org>,
Johannes Weiner <hannes@cmpxchg.org>,
Matthew Wilcox <willy@infradead.org>
Subject: Re: [PATCH 3/6] locking/local_lock: Introduce local_lock_is_locked().
Date: Tue, 6 May 2025 18:28:52 -0700 [thread overview]
Message-ID: <CAADnVQLwdsoYEKw5stci6bP5aFCxZLMs6Gq-Wae=KJ3+PjysyQ@mail.gmail.com> (raw)
In-Reply-To: <5e708851-6e8a-4ec8-81ee-55a55d1e3d2c@suse.cz>
On Tue, May 6, 2025 at 5:59 AM Vlastimil Babka <vbabka@suse.cz> wrote:
>
> On 5/1/25 05:27, Alexei Starovoitov wrote:
> > From: Alexei Starovoitov <ast@kernel.org>
> >
> > Introduce local_lock_is_locked() that returns true when
> > given local_lock is locked by current cpu (in !PREEMPT_RT) or
> > by current task (in PREEMPT_RT).
> >
> > Signed-off-by: Alexei Starovoitov <ast@kernel.org>
>
> On !RT this only works for local_trylock_t, which is fine, but maybe make it
> part of the name then? local_trylock_is_locked()?
Prior to _Generic() conversion it would make sense,
but now it will be inconsistent.
Type name is not part of the helper name.
It's local_lock, local_unlock, local_lock_is_taken.
local_trylock() might not even be used at all.
next prev parent reply other threads:[~2025-05-07 1:29 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-05-01 3:27 [PATCH 0/6] mm: Reentrant kmalloc Alexei Starovoitov
2025-05-01 3:27 ` [PATCH 1/6] mm: Rename try_alloc_pages() to alloc_pages_nolock() Alexei Starovoitov
2025-05-06 8:26 ` Vlastimil Babka
2025-05-07 1:24 ` Alexei Starovoitov
2025-05-01 3:27 ` [PATCH 2/6] locking/local_lock: Expose dep_map in local_trylock_t Alexei Starovoitov
2025-05-06 12:56 ` Vlastimil Babka
2025-05-06 14:55 ` Vlastimil Babka
2025-05-07 1:25 ` Alexei Starovoitov
2025-05-12 13:26 ` Sebastian Andrzej Siewior
2025-05-12 16:46 ` Alexei Starovoitov
2025-05-01 3:27 ` [PATCH 3/6] locking/local_lock: Introduce local_lock_is_locked() Alexei Starovoitov
2025-05-06 12:59 ` Vlastimil Babka
2025-05-07 1:28 ` Alexei Starovoitov [this message]
2025-05-12 14:56 ` Sebastian Andrzej Siewior
2025-05-12 15:01 ` Vlastimil Babka
2025-05-12 15:23 ` Sebastian Andrzej Siewior
2025-05-01 3:27 ` [PATCH 4/6] locking/local_lock: Introduce local_lock_irqsave_check() Alexei Starovoitov
2025-05-07 13:02 ` Vlastimil Babka
2025-05-12 14:03 ` Sebastian Andrzej Siewior
2025-05-12 17:16 ` Alexei Starovoitov
2025-05-13 6:58 ` Vlastimil Babka
2025-05-13 21:55 ` Alexei Starovoitov
2025-05-01 3:27 ` [PATCH 5/6] mm: Allow GFP_ACCOUNT and GFP_COMP to be used in alloc_pages_nolock() Alexei Starovoitov
2025-05-06 8:55 ` Vlastimil Babka
2025-05-07 1:33 ` Alexei Starovoitov
2025-05-01 3:27 ` [PATCH 6/6] slab: Introduce kmalloc_nolock() and kfree_nolock() Alexei Starovoitov
2025-05-05 18:46 ` Shakeel Butt
2025-05-06 0:49 ` Alexei Starovoitov
2025-05-06 1:24 ` Shakeel Butt
2025-05-06 1:51 ` Alexei Starovoitov
2025-05-06 18:05 ` Shakeel Butt
2025-05-06 12:01 ` Vlastimil Babka
2025-05-07 0:31 ` Harry Yoo
2025-05-07 2:23 ` Alexei Starovoitov
2025-05-07 8:38 ` Vlastimil Babka
2025-05-07 2:20 ` Alexei Starovoitov
2025-05-07 10:44 ` Vlastimil Babka
2025-05-09 1:03 ` Harry Yoo
2025-06-24 17:13 ` SLAB_NO_CMPXCHG was:: " Alexei Starovoitov
2025-06-25 11:38 ` Harry Yoo
2025-06-26 20:03 ` Alexei Starovoitov
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