On 2017/8/22 4:56, Jaegeuk Kim wrote:
> It's time to issue all the discard commands, if user sets the idle time.
>
> Signed-off-by: Jaegeuk Kim <jaegeuk@xxxxxxxxxx>
Reviewed-by: Chao Yu <yuchao0@xxxxxxxxxx>
> ---
> fs/f2fs/segment.c | 6 +++++-
> fs/f2fs/sysfs.c | 5 +++++
> 2 files changed, 10 insertions(+), 1 deletion(-)
>
> diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
> index 1387925a0d83..e3922f902c8c 100644
> --- a/fs/f2fs/segment.c
> +++ b/fs/f2fs/segment.c
> @@ -21,6 +21,7 @@
> #include "f2fs.h"
> #include "segment.h"
> #include "node.h"
> +#include "gc.h"
> #include "trace.h"
> #include <trace/events/f2fs.h>
>
> @@ -1194,8 +1195,11 @@ static int issue_discard_thread(void *data)
> if (kthread_should_stop())
> return 0;
>
> - if (dcc->discard_wake)
> + if (dcc->discard_wake) {
> dcc->discard_wake = 0;
> + if (sbi->gc_thread && sbi->gc_thread->gc_urgent)
> + mark_discard_range_all(sbi);
> + }
>
> sb_start_intwrite(sbi->sb);
>
> diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c
> index 4bcaa9059026..b9ad9041559f 100644
> --- a/fs/f2fs/sysfs.c
> +++ b/fs/f2fs/sysfs.c
> @@ -178,8 +178,13 @@ static ssize_t f2fs_sbi_store(struct f2fs_attr *a,
> if (!strcmp(a->attr.name, "iostat_enable") && *ui == 0)
> f2fs_reset_iostat(sbi);
> if (!strcmp(a->attr.name, "gc_urgent") && t == 1 && sbi->gc_thread) {
> + struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info;
> +
> sbi->gc_thread->gc_wake = 1;
> wake_up_interruptible_all(&sbi->gc_thread->gc_wait_queue_head);
> +
> + dcc->discard_wake = 1;
> + wake_up_interruptible_all(&dcc->discard_wait_queue);
> }
>
> return count;
>
