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From: Hao Li To: "Vlastimil Babka (SUSE)" Cc: Harry Yoo , Andrew Morton , Shengming Hu , Christoph Lameter , David Rientjes , Roman Gushchin , linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH slab/for-next] mm/slab: simplify freeing remote objects in free_to_pcs_bulk() Message-ID: References: <20260710-bulk_free_remote-v1-1-a878d6dc52d5@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260710-bulk_free_remote-v1-1-a878d6dc52d5@kernel.org> X-Migadu-Flow: FLOW_OUT X-Rspamd-Queue-Id: 76CFB1C0002 X-Rspam-User: X-Stat-Signature: 7aphu5kqtmxz56eh4pnufsf8uzqni81a X-Rspamd-Server: rspam03 X-HE-Tag: 1783924428-460437 X-HE-Meta: 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 ZPzmgO7r 2jMEiIMtEkkRNPY9O//gHZ+bhYbwd+29cNqpAl87GaMmrPZIq/6tRrZZxX2xn+duM0HYR9dHhKQdhs0xQgcOCjFQnFFb7T5QB4wc7nfVeAmYTr+rlxkQte0RnpPysmb0W5agKTWFjAwvLpzehhZFKC415RU/joCZHjMrwo1hechVbjWCKivzQtNIzHczR2fs3cMEEEep5iFkgdAEwArsn5eKKdDHIr4f1i0izGQi8+WG4kmaSFr/pxw3zKI11vsyqW6dexP5FYrdJ3ItMw5f3oald/g== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Fri, Jul 10, 2026 at 02:04:58PM +0200, Vlastimil Babka (SUSE) wrote: > We have been moving remote objects to an on-stack array and flushing it > when full. Instead, we can swap them towards the beginning of the > supplied array and bulk-free it just once. > > Also add a comment to explain the rationale of freeing remote objects > last, because now it would appear to be simpler to free them first. > > Signed-off-by: Vlastimil Babka (SUSE) > --- > One more cleanup I realized it's possible when processing feedback to > the previous one [1] > > [1] https://lore.kernel.org/all/20260707-slab-simplify-bulk-pcs-v1-1-4850dbe0d904@kernel.org/ > --- > mm/slub.c | 22 ++++++++++++---------- > 1 file changed, 12 insertions(+), 10 deletions(-) Nice idea! Reviewed-by: Hao Li -- Thanks, Hao