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| author |   Gavin Shan <gshan@redhat.com> | 2021-06-28 19:35:19 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2021-06-29 10:53:47 -0700 |
| commit | f58780a8e3851edae5bafb7d3af19425308a37f5 (patch) | |
| tree | 6a31ccccba13888872c5fc7ebf875cd6a14b5dc4 /include/linux/backing-dev-defs.h | |
| parent | mm/page_reporting: fix code style in __page_reporting_request() (diff) | |
| download | linux-rng-f58780a8e3851edae5bafb7d3af19425308a37f5.tar.xz linux-rng-f58780a8e3851edae5bafb7d3af19425308a37f5.zip | |
mm/page_reporting: export reporting order as module parameter
The macro PAGE_REPORTING_MIN_ORDER is defined as the page reporting
threshold. It can't be adjusted at runtime.
This introduces a variable (@page_reporting_order) to replace the marcro
(PAGE_REPORTING_MIN_ORDER). MAX_ORDER is assigned to it initially,
meaning the page reporting is disabled. It will be specified by driver if
valid one is provided. Otherwise, it will fall back to @pageblock_order.
It's also exported so that the page reporting order can be adjusted at
runtime.
Link: https://lkml.kernel.org/r/20210625014710.42954-3-gshan@redhat.com
Signed-off-by: Gavin Shan <gshan@redhat.com>
Suggested-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Alexander Duyck <alexanderduyck@fb.com>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/backing-dev-defs.h')
0 files changed, 0 insertions, 0 deletions