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| author | Pankaj Raghav <p.raghav@samsung.com> | 2025-08-11 10:41:13 +0200 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2025-09-13 16:54:54 -0700 |
| commit | ea5e101fb6018486ae706b905665b2fe63f9c979 (patch) | |
| tree | 6dc893f65072f02c03059f031f7696a87626b00e /mm/debug.c | |
| parent | 415a0fd62f1899fe2bb81d661e427194b1c97201 (diff) | |
| download | tip-ea5e101fb6018486ae706b905665b2fe63f9c979.tar.gz | |
block: use largest_zero_folio in __blkdev_issue_zero_pages()
Use largest_zero_folio() in __blkdev_issue_zero_pages(). On systems with
CONFIG_PERSISTENT_HUGE_ZERO_FOLIO enabled, we will end up sending larger
bvecs instead of multiple small ones.
Noticed a 4% increase in performance on a commercial NVMe SSD which does
not support OP_WRITE_ZEROES. The device's MDTS was 128K. The performance
gains might be bigger if the device supports bigger MDTS.
Link: https://lkml.kernel.org/r/20250811084113.647267-6-kernel@pankajraghav.com
Signed-off-by: Pankaj Raghav <p.raghav@samsung.com>
Acked-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Acked-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Cc: Kiryl Shutsemau <kirill@shutemov.name>
Cc: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: "Darrick J. Wong" <djwong@kernel.org>
Cc: Dev Jain <dev.jain@arm.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Luis Chamberalin <mcgrof@kernel.org>
Cc: Mariano Pache <npache@redhat.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: "Ritesh Harjani (IBM)" <ritesh.list@gmail.com>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Thomas Gleinxer <tglx@linutronix.de>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Zi Yan <ziy@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/debug.c')
0 files changed, 0 insertions, 0 deletions