diff options
| author | Kevin Hao <haokexin@gmail.com> | 2023-12-21 14:49:16 +0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2023-12-26 13:05:56 -0800 |
| commit | 94e7eb42414b6b1c11f14e0f760540993f429809 (patch) | |
| tree | 2f89857a714cdad79d372f4ee7329b56a724010a /fs/f2fs | |
| parent | 86d7d57a3f096c8349b32a0cd5f6f314e4416a6d (diff) | |
f2fs: Use wait_event_freezable_timeout() for freezable kthread
A freezable kernel thread can enter frozen state during freezing by
either calling try_to_freeze() or using wait_event_freezable() and its
variants. So for the following snippet of code in a kernel thread loop:
wait_event_interruptible_timeout();
try_to_freeze();
We can change it to a simple wait_event_freezable_timeout() and then
eliminate the function calls to try_to_freeze() and freezing().
Signed-off-by: Kevin Hao <haokexin@gmail.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs')
| -rw-r--r-- | fs/f2fs/gc.c | 6 | ||||
| -rw-r--r-- | fs/f2fs/segment.c | 7 |
2 files changed, 5 insertions, 8 deletions
diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c index 405a6077bd83..e99f58b5f15c 100644 --- a/fs/f2fs/gc.c +++ b/fs/f2fs/gc.c @@ -46,8 +46,8 @@ static int gc_thread_func(void *data) do { bool sync_mode, foreground = false; - wait_event_interruptible_timeout(*wq, - kthread_should_stop() || freezing(current) || + wait_event_freezable_timeout(*wq, + kthread_should_stop() || waitqueue_active(fggc_wq) || gc_th->gc_wake, msecs_to_jiffies(wait_ms)); @@ -59,7 +59,7 @@ static int gc_thread_func(void *data) if (gc_th->gc_wake) gc_th->gc_wake = false; - if (try_to_freeze() || f2fs_readonly(sbi->sb)) { + if (f2fs_readonly(sbi->sb)) { stat_other_skip_bggc_count(sbi); continue; } diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c index 61da26eb61cc..4c8836ded90f 100644 --- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -1887,9 +1887,8 @@ static int issue_discard_thread(void *data) set_freezable(); do { - wait_event_interruptible_timeout(*q, - kthread_should_stop() || freezing(current) || - dcc->discard_wake, + wait_event_freezable_timeout(*q, + kthread_should_stop() || dcc->discard_wake, msecs_to_jiffies(wait_ms)); if (sbi->gc_mode == GC_URGENT_HIGH || @@ -1907,8 +1906,6 @@ static int issue_discard_thread(void *data) if (atomic_read(&dcc->queued_discard)) __wait_all_discard_cmd(sbi, NULL); - if (try_to_freeze()) - continue; if (f2fs_readonly(sbi->sb)) continue; if (kthread_should_stop()) |