mm/damon: simplify the parameter passing for 'prepare_access_checks'

Patch series "mm/damon: code simplifications and cleanups".

This patchset contains some code simplifications and cleanups for DAMON.


This patch (of 4):

The parameter 'struct damon_ctx *ctx' isn't used in the functions
__damon_{p,v}a_prepare_access_check(), so we can remove it and simplify
the parameter passing.

Link: https://lkml.kernel.org/r/1663060287-30201-1-git-send-email-kaixuxia@tencent.com
Link: https://lkml.kernel.org/r/1663060287-30201-2-git-send-email-kaixuxia@tencent.comSigned-off-by: Kaixu Xia <kaixuxia@tencent.com>
Reviewed-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

mm/damon/paddr.c

@@ -63,8 +63,7 @@ static void damon_pa_mkold(unsigned long paddr)
 	folio_put(folio);
 }
 
-static void __damon_pa_prepare_access_check(struct damon_ctx *ctx,
-					    struct damon_region *r)
+static void __damon_pa_prepare_access_check(struct damon_region *r)
 {
 	r->sampling_addr = damon_rand(r->ar.start, r->ar.end);
 
@@ -78,7 +77,7 @@ static void damon_pa_prepare_access_checks(struct damon_ctx *ctx)
 
 	damon_for_each_target(t, ctx) {
 		damon_for_each_region(r, t)
-			__damon_pa_prepare_access_check(ctx, r);
+			__damon_pa_prepare_access_check(r);
 	}
 }
 

mm/damon/vaddr.c

@@ -397,8 +397,8 @@ static void damon_va_mkold(struct mm_struct *mm, unsigned long addr)
  * Functions for the access checking of the regions
  */
 
-static void __damon_va_prepare_access_check(struct damon_ctx *ctx,
-			struct mm_struct *mm, struct damon_region *r)
+static void __damon_va_prepare_access_check(struct mm_struct *mm,
+					struct damon_region *r)
 {
 	r->sampling_addr = damon_rand(r->ar.start, r->ar.end);
 
@@ -416,7 +416,7 @@ static void damon_va_prepare_access_checks(struct damon_ctx *ctx)
 		if (!mm)
 			continue;
 		damon_for_each_region(r, t)
-			__damon_va_prepare_access_check(ctx, mm, r);
+			__damon_va_prepare_access_check(mm, r);
 		mmput(mm);
 	}
 }