diff options
| author | Sergey Senozhatsky <senozhatsky@chromium.org> | 2023-11-15 11:42:12 +0900 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-12-10 16:51:40 -0800 |
| commit | a7a0350583ba51d8cde6180bb51d704b89a3b29e (patch) | |
| tree | bed2a38e17a2e1c3f78e97efe5273dd02be4c079 /drivers/block/zram/zram_drv.h | |
| parent | 1b5c65b64cd417c801945b26a2a50c4d4eefaec8 (diff) | |
zram: split memory-tracking and ac-time tracking
ZRAM_MEMORY_TRACKING enables two features:
- per-entry ac-time tracking
- debugfs interface
The latter one is the reason why memory-tracking depends on DEBUG_FS,
while the former one is used far beyond debugging these days. Namely
ac-time is used for fine grained writeback of idle entries (pages).
Move ac-time tracking under its own config option so that it can be
enabled (along with writeback) on systems without DEBUG_FS.
[senozhatsky@chromium.org: ifdef fixup, per Dmytro]
Link: https://lkml.kernel.org/r/20231117013543.540280-1-senozhatsky@chromium.org
Link: https://lkml.kernel.org/r/20231115024223.4133148-1-senozhatsky@chromium.org
Signed-off-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Dmytro Maluka <dmaluka@chromium.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'drivers/block/zram/zram_drv.h')
| -rw-r--r-- | drivers/block/zram/zram_drv.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/block/zram/zram_drv.h b/drivers/block/zram/zram_drv.h index d090753f97be..3b94d12f41b4 100644 --- a/drivers/block/zram/zram_drv.h +++ b/drivers/block/zram/zram_drv.h @@ -69,7 +69,7 @@ struct zram_table_entry { unsigned long element; }; unsigned long flags; -#ifdef CONFIG_ZRAM_MEMORY_TRACKING +#ifdef CONFIG_ZRAM_TRACK_ENTRY_ACTIME ktime_t ac_time; #endif }; |