[209/227] mm/damon/paddr,vaddr: remove damon_{p,v}a_{target_valid,set_operations}()

Commit Message

Andrew Morton March 22, 2022, 9:49 p.m. UTC

From: SeongJae Park <[e-mail]>
Subject: mm/damon/paddr,vaddr: remove damon_{p,v}a_{target_valid,set_operations}()

Because DAMON debugfs interface and DAMON-based proactive reclaim are now
using monitoring operations via registration mechanism,
damon_{p,v}a_{target_valid,set_operations}() functions have no user.  This
commit clean them up.

Link: https://lkml.kernel.org/r/[e-mail]
Signed-off-by: SeongJae Park <[e-mail]>
Cc: David Rientjes <[e-mail]>
Cc: Xin Hao <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
---

 include/linux/damon.h |   10 ----------
 mm/damon/paddr.c      |   20 +-------------------
 mm/damon/vaddr.c      |   15 +--------------
 3 files changed, 2 insertions(+), 43 deletions(-)

Patch

--- a/include/linux/damon.h~mm-damon-paddrvaddr-remove-damon_pva_target_validset_operations
+++ a/include/linux/damon.h
@@ -513,14 +513,4 @@  int damon_stop(struct damon_ctx **ctxs,
 
 #endif	/* CONFIG_DAMON */
 
-#ifdef CONFIG_DAMON_VADDR
-bool damon_va_target_valid(void *t);
-void damon_va_set_operations(struct damon_ctx *ctx);
-#endif	/* CONFIG_DAMON_VADDR */
-
-#ifdef CONFIG_DAMON_PADDR
-bool damon_pa_target_valid(void *t);
-void damon_pa_set_operations(struct damon_ctx *ctx);
-#endif	/* CONFIG_DAMON_PADDR */
-
 #endif	/* _DAMON_H */
--- a/mm/damon/paddr.c~mm-damon-paddrvaddr-remove-damon_pva_target_validset_operations
+++ a/mm/damon/paddr.c
@@ -208,11 +208,6 @@  static unsigned int damon_pa_check_acces
 	return max_nr_accesses;
 }
 
-bool damon_pa_target_valid(void *t)
-{
-	return true;
-}
-
 static unsigned long damon_pa_apply_scheme(struct damon_ctx *ctx,
 		struct damon_target *t, struct damon_region *r,
 		struct damos *scheme)
@@ -261,19 +256,6 @@  static int damon_pa_scheme_score(struct
 	return DAMOS_MAX_SCORE;
 }
 
-void damon_pa_set_operations(struct damon_ctx *ctx)
-{
-	ctx->ops.init = NULL;
-	ctx->ops.update = NULL;
-	ctx->ops.prepare_access_checks = damon_pa_prepare_access_checks;
-	ctx->ops.check_accesses = damon_pa_check_accesses;
-	ctx->ops.reset_aggregated = NULL;
-	ctx->ops.target_valid = damon_pa_target_valid;
-	ctx->ops.cleanup = NULL;
-	ctx->ops.apply_scheme = damon_pa_apply_scheme;
-	ctx->ops.get_scheme_score = damon_pa_scheme_score;
-}
-
 static int __init damon_pa_initcall(void)
 {
 	struct damon_operations ops = {
@@ -283,7 +265,7 @@  static int __init damon_pa_initcall(void
 		.prepare_access_checks = damon_pa_prepare_access_checks,
 		.check_accesses = damon_pa_check_accesses,
 		.reset_aggregated = NULL,
-		.target_valid = damon_pa_target_valid,
+		.target_valid = NULL,
 		.cleanup = NULL,
 		.apply_scheme = damon_pa_apply_scheme,
 		.get_scheme_score = damon_pa_scheme_score,
--- a/mm/damon/vaddr.c~mm-damon-paddrvaddr-remove-damon_pva_target_validset_operations
+++ a/mm/damon/vaddr.c
@@ -653,7 +653,7 @@  static unsigned int damon_va_check_acces
  * Functions for the target validity check and cleanup
  */
 
-bool damon_va_target_valid(void *target)
+static bool damon_va_target_valid(void *target)
 {
 	struct damon_target *t = target;
 	struct task_struct *task;
@@ -739,19 +739,6 @@  static int damon_va_scheme_score(struct
 	return DAMOS_MAX_SCORE;
 }
 
-void damon_va_set_operations(struct damon_ctx *ctx)
-{
-	ctx->ops.init = damon_va_init;
-	ctx->ops.update = damon_va_update;
-	ctx->ops.prepare_access_checks = damon_va_prepare_access_checks;
-	ctx->ops.check_accesses = damon_va_check_accesses;
-	ctx->ops.reset_aggregated = NULL;
-	ctx->ops.target_valid = damon_va_target_valid;
-	ctx->ops.cleanup = NULL;
-	ctx->ops.apply_scheme = damon_va_apply_scheme;
-	ctx->ops.get_scheme_score = damon_va_scheme_score;
-}
-
 static int __init damon_va_initcall(void)
 {
 	struct damon_operations ops = {