linux-kernel - [PATCH] f2fs: make sure zoned device GC to use FG

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Message-ID: <20250529222532.1088106-1-daeho43@gmail.com>
Date: Thu, 29 May 2025 15:25:32 -0700
From: Daeho Jeong <daeho43@...il.com>
To: linux-kernel@...r.kernel.org,
	linux-f2fs-devel@...ts.sourceforge.net,
	kernel-team@...roid.com
Cc: Daeho Jeong <daehojeong@...gle.com>
Subject: [PATCH] f2fs: make sure zoned device GC to use FG_GC in shortage of free section

From: Daeho Jeong <daehojeong@...gle.com>

We already use FG_GC when we have free sections under
gc_boost_zoned_gc_percent. So, let's make it consistent.

Signed-off-by: Daeho Jeong <daehojeong@...gle.com>
---
 fs/f2fs/gc.c      | 2 +-
 fs/f2fs/segment.c | 3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index f752dec71e45..cd13a642055b 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -144,7 +144,7 @@ static int gc_thread_func(void *data)
 				gc_control.one_time;
 
 		/* foreground GC was been triggered via f2fs_balance_fs() */
-		if (foreground)
+		if (foreground && !f2fs_sb_has_blkzoned(sbi))
 			sync_mode = false;
 
 		gc_control.init_gc_type = sync_mode ? FG_GC : BG_GC;
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 396ef71f41e3..030540df3550 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -446,7 +446,8 @@ void f2fs_balance_fs(struct f2fs_sb_info *sbi, bool need)
 	} else {
 		struct f2fs_gc_control gc_control = {
 			.victim_segno = NULL_SEGNO,
-			.init_gc_type = BG_GC,
+			.init_gc_type = f2fs_sb_has_blkzoned(sbi) ?
+				FG_GC : BG_GC,
 			.no_bg_gc = true,
 			.should_migrate_blocks = false,
 			.err_gc_skipped = false,
-- 
2.49.0.1204.g71687c7c1d-goog