github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-25 15:41:52 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

mm/damon: remove ->before_start of damon_callback

Browse Source 
The function pointer field was added to be used as a place to do some
initialization works just before DAMON starts working.  However, nobody is
using it now.  Remove it.

Link: https://lkml.kernel.org/r/20250306175908.66300-11-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
SeongJae Park 2025-03-06 09:59:05 -08:00 committed by Andrew Morton
parent 53058c762a
commit 07da21855b
2 changed files with 2 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
include/linux/damon.h
View File

@ -603,16 +603,14 @@ struct damon_operations {
/**
* struct damon_callback - Monitoring events notification callbacks.
*
* @before_start: Called before starting the monitoring.
* @after_wmarks_check: Called after each schemes' watermarks check.
* @after_sampling: Called after each sampling.
* @after_aggregation: Called after each aggregation.
* @before_damos_apply: Called before applying DAMOS action.
* @before_terminate: Called before terminating the monitoring.
*
* The monitoring thread (&damon_ctx.kdamond) calls @before_start and
* @before_terminate just before starting and finishing the monitoring,
* respectively.
* The monitoring thread (&damon_ctx.kdamond) calls @before_terminate just
* before finishing the monitoring.
*
* The monitoring thread calls @after_wmarks_check after each DAMON-based
* operation schemes' watermarks check. If users need to make changes to the
@ -628,7 +626,6 @@ struct damon_operations {
* If any callback returns non-zero, monitoring stops.
*/
struct damon_callback {
int (*before_start)(struct damon_ctx *context);
int (*after_wmarks_check)(struct damon_ctx *context);
int (*after_sampling)(struct damon_ctx *context);
int (*after_aggregation)(struct damon_ctx *context);

2
mm/damon/core.c
View File

@ -2408,8 +2408,6 @@ static int kdamond_fn(void *data)
if (ctx->ops.init)
ctx->ops.init(ctx);
if (ctx->callback.before_start && ctx->callback.before_start(ctx))
goto done;
ctx->regions_score_histogram = kmalloc_array(DAMOS_MAX_SCORE + 1,
sizeof(*ctx->regions_score_histogram), GFP_KERNEL);
if (!ctx->regions_score_histogram)