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From: Baoquan He To: Christoph Hellwig Cc: akpm@linux-foundation.org, chrisl@kernel.org, usama.arif@linux.dev, kasong@tencent.com, nphamcs@gmail.com, shikemeng@huaweicloud.com, youngjun.park@lge.com, linux-mm@kvack.org Subject: Re: RFC: better block swap batching and a different take on swap_ops Message-ID: References: <20260515120019.4015143-1-hch@lst.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260515120019.4015143-1-hch@lst.de> X-Migadu-Flow: FLOW_OUT X-Rspamd-Server: rspam11 X-Rspamd-Queue-Id: A59C1180005 X-Stat-Signature: 6n7yy7fnn7i7hhrwg4zf3mr7gjjqpen8 X-Rspam-User: X-HE-Tag: 1779456705-507279 X-HE-Meta: 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 6Nh4PQKk 28KyO2yMcUCRwI+D70E8r2Wr1MKfF2zQR+k7VZwTwKNmID9aqjaUmwnNlNuW2J6zTV7qPFQbCL13q4rjSDiZugKC3FEofAnWg31TEweDZnkJkqEMDz4BdG3eXcg1iPgz8IYTorIortObIV+vkaSWTrfXQojh5BjLOePaiuqSbplWW8JkZHsivSX6fq/ky273A/HIEwKIAsdTsO+CCmMEMh9r6WgD/kplfJk16SvvsgKblutWG9eGCZIvdaL/m2DRwv52hXs5Z9V0z4yAJiZqSTeB/N6cNN+ix2Cr1V2ndmGuIITQf07ZwR3DU8RFwhYo1hRCN Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 05/15/26 at 02:00pm, Christoph Hellwig wrote: > Hi all, > > this series makes use of the swap_iocb for block as well so that it > doesn't do inefficient single-bio I/O, and then rebases the swap_ops > from Baoquan on top of the now very different method structure. > > This is very hot off the press and has only survived very basic testing. This looks good, and worth a formal posting. That would be better if stat number is pasted about efficiency promotion. > > Diffstat: > Documentation/filesystems/locking.rst | 5 > Documentation/filesystems/vfs.rst | 4 > drivers/gpu/drm/i915/gem/i915_gem_shmem.c | 2 > drivers/gpu/drm/ttm/ttm_backup.c | 2 > fs/nfs/file.c | 4 > fs/smb/client/file.c | 4 > include/linux/shmem_fs.h | 5 > include/linux/swap.h | 7 > mm/madvise.c | 16 > mm/page_io.c | 544 ++++++++++++++---------------- > mm/shmem.c | 18 > mm/swap.h | 52 +- > mm/swap_state.c | 40 +- > mm/swapfile.c | 11 > mm/vmscan.c | 88 ++-- > 15 files changed, 402 insertions(+), 400 deletions(-)