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Date: Mon, 12 Dec 2022 21:36:44 +0800
From: Yangtao Li <frank.li@...o.com>
To: jaegeuk@...nel.org, chao@...nel.org
Cc: linux-f2fs-devel@...ts.sourceforge.net,
linux-kernel@...r.kernel.org, Yangtao Li <frank.li@...o.com>
Subject: [PATCH] f2fs: convert discard_wake and gc_wake to bool type
discard_wake and gc_wake have only two values, 0 or 1.
So there is no need to use int type to store them.
BTW, move discard_wake to the end of the
discard_cmd_control structure.
Before:
- sizeof(struct discard_cmd_control): 8392
After move:
- sizeof(struct discard_cmd_control): 8384
Signed-off-by: Yangtao Li <frank.li@...o.com>
---
fs/f2fs/f2fs.h | 2 +-
fs/f2fs/gc.c | 4 ++--
fs/f2fs/gc.h | 2 +-
fs/f2fs/segment.c | 2 +-
fs/f2fs/segment.h | 2 +-
fs/f2fs/sysfs.c | 4 ++--
6 files changed, 8 insertions(+), 8 deletions(-)
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index e8953c3dc81a..764041d7b217 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -402,7 +402,6 @@ struct discard_cmd_control {
struct list_head wait_list; /* store on-flushing entries */
struct list_head fstrim_list; /* in-flight discard from fstrim */
wait_queue_head_t discard_wait_queue; /* waiting queue for wake-up */
- unsigned int discard_wake; /* to wake up discard thread */
struct mutex cmd_lock;
unsigned int nr_discards; /* # of discards in the list */
unsigned int max_discards; /* max. discards to be issued */
@@ -420,6 +419,7 @@ struct discard_cmd_control {
atomic_t discard_cmd_cnt; /* # of cached cmd count */
struct rb_root_cached root; /* root of discard rb-tree */
bool rbtree_check; /* config for consistence check */
+ bool discard_wake; /* to wake up discard thread */
};
/* for the list of fsync inodes, used only during recovery */
diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index f0c6506d8975..678726e6a6e8 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -57,7 +57,7 @@ static int gc_thread_func(void *data)
/* give it a try one time */
if (gc_th->gc_wake)
- gc_th->gc_wake = 0;
+ gc_th->gc_wake = false;
if (try_to_freeze()) {
stat_other_skip_bggc_count(sbi);
@@ -181,7 +181,7 @@ int f2fs_start_gc_thread(struct f2fs_sb_info *sbi)
gc_th->max_sleep_time = DEF_GC_THREAD_MAX_SLEEP_TIME;
gc_th->no_gc_sleep_time = DEF_GC_THREAD_NOGC_SLEEP_TIME;
- gc_th->gc_wake = 0;
+ gc_th->gc_wake = false;
sbi->gc_thread = gc_th;
init_waitqueue_head(&sbi->gc_thread->gc_wait_queue_head);
diff --git a/fs/f2fs/gc.h b/fs/f2fs/gc.h
index 19b956c2d697..15bd1d680f67 100644
--- a/fs/f2fs/gc.h
+++ b/fs/f2fs/gc.h
@@ -41,7 +41,7 @@ struct f2fs_gc_kthread {
unsigned int no_gc_sleep_time;
/* for changing gc mode */
- unsigned int gc_wake;
+ bool gc_wake;
/* for GC_MERGE mount option */
wait_queue_head_t fggc_wq; /*
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index a9099a754dd2..a85d438e76ea 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -1701,7 +1701,7 @@ static int issue_discard_thread(void *data)
dcc->discard_granularity);
if (dcc->discard_wake)
- dcc->discard_wake = 0;
+ dcc->discard_wake = false;
/* clean up pending candidates before going to sleep */
if (atomic_read(&dcc->queued_discard))
diff --git a/fs/f2fs/segment.h b/fs/f2fs/segment.h
index 3ad1b7b6fa94..22fac8baf4a4 100644
--- a/fs/f2fs/segment.h
+++ b/fs/f2fs/segment.h
@@ -924,6 +924,6 @@ static inline void wake_up_discard_thread(struct f2fs_sb_info *sbi, bool force)
if (!wakeup || !is_idle(sbi, DISCARD_TIME))
return;
wake_up:
- dcc->discard_wake = 1;
+ dcc->discard_wake = true;
wake_up_interruptible_all(&dcc->discard_wait_queue);
}
diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c
index 83a366f3ee80..805b632a3af0 100644
--- a/fs/f2fs/sysfs.c
+++ b/fs/f2fs/sysfs.c
@@ -511,7 +511,7 @@ static ssize_t __sbi_store(struct f2fs_attr *a,
} else if (t == 1) {
sbi->gc_mode = GC_URGENT_HIGH;
if (sbi->gc_thread) {
- sbi->gc_thread->gc_wake = 1;
+ sbi->gc_thread->gc_wake = true;
wake_up_interruptible_all(
&sbi->gc_thread->gc_wait_queue_head);
wake_up_discard_thread(sbi, true);
@@ -521,7 +521,7 @@ static ssize_t __sbi_store(struct f2fs_attr *a,
} else if (t == 3) {
sbi->gc_mode = GC_URGENT_MID;
if (sbi->gc_thread) {
- sbi->gc_thread->gc_wake = 1;
+ sbi->gc_thread->gc_wake = true;
wake_up_interruptible_all(
&sbi->gc_thread->gc_wait_queue_head);
}
--
2.25.1
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