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authorSeongJae Park <sj@kernel.org>2021-11-05 13:46:25 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2021-11-06 13:30:44 -0700
commit6dea8add4d2875b80843e4a4c8acd334a4db8c8f (patch)
tree0f068e562e8097cae50774bd18c7ee8f81cab5d0 /include/linux/damon.h
parent1f366e421c8f69583ed37b56d86e3747331869c3 (diff)
mm/damon/vaddr: support DAMON-based Operation Schemes
This makes DAMON's default primitives for virtual address spaces to support DAMON-based Operation Schemes (DAMOS) by implementing actions application functions and registering it to the monitoring context. The implementation simply links 'madvise()' for related DAMOS actions. That is, 'madvise(MADV_WILLNEED)' is called for 'WILLNEED' DAMOS action and similar for other actions ('COLD', 'PAGEOUT', 'HUGEPAGE', 'NOHUGEPAGE'). So, the kernel space DAMON users can now use the DAMON-based optimizations with only small amount of code. Link: https://lkml.kernel.org/r/20211001125604.29660-4-sj@kernel.org Signed-off-by: SeongJae Park <sj@kernel.org> Cc: Amit Shah <amit@kernel.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: David Hildenbrand <david@redhat.com> Cc: David Rienjes <rientjes@google.com> Cc: David Woodhouse <dwmw@amazon.com> Cc: Greg Thelen <gthelen@google.com> Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Leonard Foerster <foersleo@amazon.de> Cc: Marco Elver <elver@google.com> Cc: Markus Boehme <markubo@amazon.de> Cc: Shakeel Butt <shakeelb@google.com> Cc: Shuah Khan <shuah@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/damon.h')
-rw-r--r--include/linux/damon.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/damon.h b/include/linux/damon.h
index dbe18b0fb795..be6b6e81e8ee 100644
--- a/include/linux/damon.h
+++ b/include/linux/damon.h
@@ -337,6 +337,8 @@ void damon_va_prepare_access_checks(struct damon_ctx *ctx);
unsigned int damon_va_check_accesses(struct damon_ctx *ctx);
bool damon_va_target_valid(void *t);
void damon_va_cleanup(struct damon_ctx *ctx);
+int damon_va_apply_scheme(struct damon_ctx *context, struct damon_target *t,
+ struct damon_region *r, struct damos *scheme);
void damon_va_set_primitives(struct damon_ctx *ctx);
#endif /* CONFIG_DAMON_VADDR */