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Fri, 06 Jun 2025 12:20:21 -0700 (PDT) From: Daeho Jeong To: linux-kernel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, kernel-team@android.com Date: Fri, 6 Jun 2025 12:20:17 -0700 Message-ID: <20250606192017.439733-1-daeho43@gmail.com> X-Mailer: git-send-email 2.50.0.rc0.604.gd4ff7b7c86-goog MIME-Version: 1.0 X-Headers-End: 1uNccD-00045h-0M Subject: [f2fs-dev] [PATCH] f2fs: add gc_boost_gc_multiple sysfs node X-BeenThere: linux-f2fs-devel@lists.sourceforge.net X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Daeho Jeong Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: linux-f2fs-devel-bounces@lists.sourceforge.net From: Daeho Jeong Add a sysfs knob to set a multiplier for the background GC migration window when F2FS Garbage Collection is boosted. Signed-off-by: Daeho Jeong --- Documentation/ABI/testing/sysfs-fs-f2fs | 8 ++++++++ fs/f2fs/gc.c | 3 ++- fs/f2fs/gc.h | 1 + fs/f2fs/sysfs.c | 2 ++ 4 files changed, 13 insertions(+), 1 deletion(-) diff --git a/Documentation/ABI/testing/sysfs-fs-f2fs b/Documentation/ABI/testing/sysfs-fs-f2fs index bf03263b9f46..931c1f63aa2e 100644 --- a/Documentation/ABI/testing/sysfs-fs-f2fs +++ b/Documentation/ABI/testing/sysfs-fs-f2fs @@ -861,3 +861,11 @@ Description: This is a read-only entry to show the value of sb.s_encoding_flags, SB_ENC_STRICT_MODE_FL 0x00000001 SB_ENC_NO_COMPAT_FALLBACK_FL 0x00000002 ============================ ========== + +What: /sys/fs/f2fs//gc_boost_gc_multiple +Date: June 2025 +Contact: "Daeho Jeong" +Description: Set a multiplier for the background GC migration window when F2FS GC is + boosted. + Default: 5 + diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c index 3cb5242f4ddf..de7e59bc0906 100644 --- a/fs/f2fs/gc.c +++ b/fs/f2fs/gc.c @@ -197,6 +197,7 @@ int f2fs_start_gc_thread(struct f2fs_sb_info *sbi) gc_th->urgent_sleep_time = DEF_GC_THREAD_URGENT_SLEEP_TIME; gc_th->valid_thresh_ratio = DEF_GC_THREAD_VALID_THRESH_RATIO; + gc_th->boost_gc_multiple = BOOST_GC_MULTIPLE; if (f2fs_sb_has_blkzoned(sbi)) { gc_th->min_sleep_time = DEF_GC_THREAD_MIN_SLEEP_TIME_ZONED; @@ -1749,7 +1750,7 @@ static int do_garbage_collect(struct f2fs_sb_info *sbi, !has_enough_free_blocks(sbi, sbi->gc_thread->boost_zoned_gc_percent)) window_granularity *= - BOOST_GC_MULTIPLE; + sbi->gc_thread->boost_gc_multiple; end_segno = start_segno + window_granularity; } diff --git a/fs/f2fs/gc.h b/fs/f2fs/gc.h index 5c1eaf55e127..efa1968810a0 100644 --- a/fs/f2fs/gc.h +++ b/fs/f2fs/gc.h @@ -68,6 +68,7 @@ struct f2fs_gc_kthread { unsigned int no_zoned_gc_percent; unsigned int boost_zoned_gc_percent; unsigned int valid_thresh_ratio; + unsigned int boost_gc_multiple; }; struct gc_inode_list { diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c index 75134d69a0bd..b0270b1c939c 100644 --- a/fs/f2fs/sysfs.c +++ b/fs/f2fs/sysfs.c @@ -1050,6 +1050,7 @@ GC_THREAD_RW_ATTR(gc_no_gc_sleep_time, no_gc_sleep_time); GC_THREAD_RW_ATTR(gc_no_zoned_gc_percent, no_zoned_gc_percent); GC_THREAD_RW_ATTR(gc_boost_zoned_gc_percent, boost_zoned_gc_percent); GC_THREAD_RW_ATTR(gc_valid_thresh_ratio, valid_thresh_ratio); +GC_THREAD_RW_ATTR(gc_boost_gc_multiple, boost_gc_multiple); /* SM_INFO ATTR */ SM_INFO_RW_ATTR(reclaim_segments, rec_prefree_segments); @@ -1220,6 +1221,7 @@ static struct attribute *f2fs_attrs[] = { ATTR_LIST(gc_no_zoned_gc_percent), ATTR_LIST(gc_boost_zoned_gc_percent), ATTR_LIST(gc_valid_thresh_ratio), + ATTR_LIST(gc_boost_gc_multiple), ATTR_LIST(gc_idle), ATTR_LIST(gc_urgent), ATTR_LIST(reclaim_segments), -- 2.50.0.rc0.604.gd4ff7b7c86-goog _______________________________________________ Linux-f2fs-devel mailing list Linux-f2fs-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pl1-f169.google.com (mail-pl1-f169.google.com [209.85.214.169]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0C80C2F2A for ; 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Fri, 06 Jun 2025 12:20:22 -0700 (PDT) Received: from daehojeong-desktop.mtv.corp.google.com ([2a00:79e0:2e14:7:d02c:e22:e5a4:2f84]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-3132ad9a4aasm2962217a91.1.2025.06.06.12.20.21 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 06 Jun 2025 12:20:21 -0700 (PDT) From: Daeho Jeong To: linux-kernel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, kernel-team@android.com Cc: Daeho Jeong Subject: [PATCH] f2fs: add gc_boost_gc_multiple sysfs node Date: Fri, 6 Jun 2025 12:20:17 -0700 Message-ID: <20250606192017.439733-1-daeho43@gmail.com> X-Mailer: git-send-email 2.50.0.rc0.604.gd4ff7b7c86-goog Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Daeho Jeong Add a sysfs knob to set a multiplier for the background GC migration window when F2FS Garbage Collection is boosted. Signed-off-by: Daeho Jeong --- Documentation/ABI/testing/sysfs-fs-f2fs | 8 ++++++++ fs/f2fs/gc.c | 3 ++- fs/f2fs/gc.h | 1 + fs/f2fs/sysfs.c | 2 ++ 4 files changed, 13 insertions(+), 1 deletion(-) diff --git a/Documentation/ABI/testing/sysfs-fs-f2fs b/Documentation/ABI/testing/sysfs-fs-f2fs index bf03263b9f46..931c1f63aa2e 100644 --- a/Documentation/ABI/testing/sysfs-fs-f2fs +++ b/Documentation/ABI/testing/sysfs-fs-f2fs @@ -861,3 +861,11 @@ Description: This is a read-only entry to show the value of sb.s_encoding_flags, SB_ENC_STRICT_MODE_FL 0x00000001 SB_ENC_NO_COMPAT_FALLBACK_FL 0x00000002 ============================ ========== + +What: /sys/fs/f2fs//gc_boost_gc_multiple +Date: June 2025 +Contact: "Daeho Jeong" +Description: Set a multiplier for the background GC migration window when F2FS GC is + boosted. + Default: 5 + diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c index 3cb5242f4ddf..de7e59bc0906 100644 --- a/fs/f2fs/gc.c +++ b/fs/f2fs/gc.c @@ -197,6 +197,7 @@ int f2fs_start_gc_thread(struct f2fs_sb_info *sbi) gc_th->urgent_sleep_time = DEF_GC_THREAD_URGENT_SLEEP_TIME; gc_th->valid_thresh_ratio = DEF_GC_THREAD_VALID_THRESH_RATIO; + gc_th->boost_gc_multiple = BOOST_GC_MULTIPLE; if (f2fs_sb_has_blkzoned(sbi)) { gc_th->min_sleep_time = DEF_GC_THREAD_MIN_SLEEP_TIME_ZONED; @@ -1749,7 +1750,7 @@ static int do_garbage_collect(struct f2fs_sb_info *sbi, !has_enough_free_blocks(sbi, sbi->gc_thread->boost_zoned_gc_percent)) window_granularity *= - BOOST_GC_MULTIPLE; + sbi->gc_thread->boost_gc_multiple; end_segno = start_segno + window_granularity; } diff --git a/fs/f2fs/gc.h b/fs/f2fs/gc.h index 5c1eaf55e127..efa1968810a0 100644 --- a/fs/f2fs/gc.h +++ b/fs/f2fs/gc.h @@ -68,6 +68,7 @@ struct f2fs_gc_kthread { unsigned int no_zoned_gc_percent; unsigned int boost_zoned_gc_percent; unsigned int valid_thresh_ratio; + unsigned int boost_gc_multiple; }; struct gc_inode_list { diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c index 75134d69a0bd..b0270b1c939c 100644 --- a/fs/f2fs/sysfs.c +++ b/fs/f2fs/sysfs.c @@ -1050,6 +1050,7 @@ GC_THREAD_RW_ATTR(gc_no_gc_sleep_time, no_gc_sleep_time); GC_THREAD_RW_ATTR(gc_no_zoned_gc_percent, no_zoned_gc_percent); GC_THREAD_RW_ATTR(gc_boost_zoned_gc_percent, boost_zoned_gc_percent); GC_THREAD_RW_ATTR(gc_valid_thresh_ratio, valid_thresh_ratio); +GC_THREAD_RW_ATTR(gc_boost_gc_multiple, boost_gc_multiple); /* SM_INFO ATTR */ SM_INFO_RW_ATTR(reclaim_segments, rec_prefree_segments); @@ -1220,6 +1221,7 @@ static struct attribute *f2fs_attrs[] = { ATTR_LIST(gc_no_zoned_gc_percent), ATTR_LIST(gc_boost_zoned_gc_percent), ATTR_LIST(gc_valid_thresh_ratio), + ATTR_LIST(gc_boost_gc_multiple), ATTR_LIST(gc_idle), ATTR_LIST(gc_urgent), ATTR_LIST(reclaim_segments), -- 2.50.0.rc0.604.gd4ff7b7c86-goog