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| author | SeongJae Park <sj@kernel.org> | 2022-11-02 01:03:25 +0300 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2022-12-01 02:58:44 +0300 |
| commit | 772c15e5adcb32a42dbbcdb905ec49f662312976 (patch) | |
| tree | 15e5db5d84abf3e9dddfcb0fb9983c4a36b6acfe /mm/damon/sysfs-common.h | |
| parent | f1d13cacabe140305844879e495ca67837e059cc (diff) | |
| download | linux-772c15e5adcb32a42dbbcdb905ec49f662312976.tar.xz | |
mm/damon/sysfs-schemes: implement DAMOS-tried regions clear command
When there are huge number of DAMON regions that specific scheme actions
are tried to be applied, directories and files under 'tried_regions'
scheme directory could waste some memory. Add another special input
keyword ('clear_schemes_tried_regions') for 'state' file of each kdamond
sysfs directory that can be used for cleanup of the 'tried_regions'
sub-directories.
[sj@kernel.org: skip regions clearing if the scheme directory was removed]
Link: https://lkml.kernel.org/r/20221114182954.4745-3-sj@kernel.org
Link: https://lkml.kernel.org/r/20221101220328.95765-6-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/damon/sysfs-common.h')
| -rw-r--r-- | mm/damon/sysfs-common.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/mm/damon/sysfs-common.h b/mm/damon/sysfs-common.h index 634a6e7fca78..604a6cbc3ede 100644 --- a/mm/damon/sysfs-common.h +++ b/mm/damon/sysfs-common.h @@ -50,3 +50,7 @@ int damon_sysfs_schemes_update_regions_start( struct damon_ctx *ctx); int damon_sysfs_schemes_update_regions_stop(struct damon_ctx *ctx); + +int damon_sysfs_schemes_clear_regions( + struct damon_sysfs_schemes *sysfs_schemes, + struct damon_ctx *ctx); |