From: Christoph Hellwig <hch@lst.de>
To: Jens Axboe <axboe@kernel.dk>, Thomas Gleixner <tglx@linutronix.de>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
Geoff Levand <geoff@infradead.org>,
Ilya Dryomov <idryomov@gmail.com>,
Dongsheng Yang <dongsheng.yang@easystack.cn>,
Mike Snitzer <snitzer@redhat.com>,
"James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>,
Ira Weiny <ira.weiny@intel.com>,
dm-devel@redhat.com, linux-mips@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-block@vger.kernel.org,
linuxppc-dev@lists.ozlabs.org, ceph-devel@vger.kernel.org,
linux-arch@vger.kernel.org,
Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Subject: [PATCH 03/18] mm: use kmap_local_page in memzero_page
Date: Tue, 15 Jun 2021 15:24:41 +0200 [thread overview]
Message-ID: <20210615132456.753241-4-hch@lst.de> (raw)
In-Reply-To: <20210615132456.753241-1-hch@lst.de>
No need for kmap_atomic here.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
---
include/linux/highmem.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/include/linux/highmem.h b/include/linux/highmem.h
index d0497c0daf80..d3df0e2db44f 100644
--- a/include/linux/highmem.h
+++ b/include/linux/highmem.h
@@ -338,9 +338,9 @@ static inline void memcpy_to_page(struct page *page, size_t offset,
static inline void memzero_page(struct page *page, size_t offset, size_t len)
{
- char *addr = kmap_atomic(page);
+ char *addr = kmap_local_page(page);
memset(addr + offset, 0, len);
- kunmap_atomic(addr);
+ kunmap_local_dirty(page, addr);
}
#endif /* _LINUX_HIGHMEM_H */
--
2.30.2
next prev parent reply other threads:[~2021-06-15 13:27 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-15 13:24 switch the block layer to use kmap_local_page v2 Christoph Hellwig
2021-06-15 13:24 ` [PATCH 01/18] mm: add a kunmap_local_dirty helper Christoph Hellwig
2021-06-18 3:01 ` Ira Weiny
2021-06-18 3:37 ` Herbert Xu
2021-06-18 18:12 ` Ira Weiny
2021-06-24 6:32 ` [PATCH] crypto: scatterwalk - Remove obsolete PageSlab check Herbert Xu
2021-06-15 13:24 ` [PATCH 02/18] mm: use kunmap_local_dirty in memcpy_to_page Christoph Hellwig
2021-06-15 13:24 ` Christoph Hellwig [this message]
2021-06-15 13:24 ` [PATCH 04/18] MIPS: don't include <linux/genhd.h> in <asm/mach-rc32434/rb.h> Christoph Hellwig
2021-06-15 13:24 ` [PATCH 05/18] bvec: fix the include guards for bvec.h Christoph Hellwig
2021-06-15 13:24 ` [PATCH 06/18] bvec: add a bvec_kmap_local helper Christoph Hellwig
2021-06-16 16:52 ` [dm-devel] " Bart Van Assche
2021-06-15 13:24 ` [PATCH 07/18] bvec: add memcpy_{from,to}_bvec and memzero_bvec helper Christoph Hellwig
2021-06-15 13:24 ` [PATCH 08/18] block: use memzero_page in zero_fill_bio Christoph Hellwig
2021-06-15 13:24 ` [PATCH 09/18] rbd: use memzero_bvec Christoph Hellwig
2021-06-15 13:24 ` [PATCH 10/18] dm-writecache: use bvec_kmap_local instead of bvec_kmap_irq Christoph Hellwig
2021-06-15 13:24 ` [PATCH 11/18] ps3disk: use memcpy_{from,to}_bvec Christoph Hellwig
2021-06-16 16:36 ` Geoff Levand
2021-06-15 13:24 ` [PATCH 12/18] block: remove bvec_kmap_irq and bvec_kunmap_irq Christoph Hellwig
2021-06-15 13:24 ` [PATCH 13/18] block: rewrite bio_copy_data_iter to use bvec_kmap_local and memcpy_to_bvec Christoph Hellwig
2021-06-15 13:24 ` [PATCH 14/18] block: use memcpy_to_bvec in copy_to_high_bio_irq Christoph Hellwig
2021-06-15 13:24 ` [PATCH 15/18] block: use memcpy_from_bvec in bio_copy_kern_endio_read Christoph Hellwig
2021-06-15 13:24 ` [PATCH 16/18] block: use memcpy_from_bvec in __blk_queue_bounce Christoph Hellwig
2021-06-15 13:24 ` [PATCH 17/18] block: use bvec_kmap_local in t10_pi_type1_{prepare,complete} Christoph Hellwig
2021-06-15 13:24 ` [PATCH 18/18] block: use bvec_kmap_local in bio_integrity_process Christoph Hellwig
2021-06-16 16:03 ` switch the block layer to use kmap_local_page v2 Martin K. Petersen
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