android_kernel_motorola_sm6375/drivers/dax
Repository files (latest commit first)
Filename Latest commit message Latest commit date
Vivek Goyal 3161993224
UPSTREAM: dax, pmem: Add a dax operation zero_page_range
Add a dax operation zero_page_range, to zero a page. This will also clear any
known poison in the page being zeroed.

As of now, zeroing of one page is allowed in a single call. There
are no callers which are trying to zero more than a page in a single call.
Once we grow the callers which zero more than a page in single call, we
can add that support. Primary reason for not doing that yet is that this
will add little complexity in dm implementation where a range might be
spanning multiple underlying targets and one will have to split the range
into multiple sub ranges and call zero_page_range() on individual targets.

Suggested-by: Christoph Hellwig <hch@infradead.org>
Change-Id: Id86c5bac0824101755c69eb8822760fd05007210
Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Reviewed-by: Pankaj Gupta <pankaj.gupta.linux@gmail.com>
Link: https://lore.kernel.org/r/20200228163456.1587-3-vgoyal@redhat.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2026-05-08 21:46:12 +02:00
..
pmem
bus.c
bus.h
dax-private.h
device.c
Kconfig
kmem.c
Makefile
super.c UPSTREAM: dax, pmem: Add a dax operation zero_page_range 2026-05-08 21:46:12 +02:00