Received-SPF: pass (google.com: domain of linux-ext4-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
From:   Kemeng Shi <shikemeng@huaweicloud.com>
To:     tytso@mit.edu, adilger.kernel@dilger.ca, ritesh.list@gmail.com,
        ojaswin@linux.ibm.com, linux-ext4@vger.kernel.org,
        linux-kernel@vger.kernel.org
Cc:     shikemeng@huaweicloud.com
Subject: [PATCH v2 08/10] ext4: return found group directly in ext4_mb_choose_next_group_goal_fast
Date:   Wed, 26 Jul 2023 02:51:04 +0800
Message-Id: <20230725185106.2147273-9-shikemeng@huaweicloud.com>
In-Reply-To: <20230725185106.2147273-1-shikemeng@huaweicloud.com>
References: <20230725185106.2147273-1-shikemeng@huaweicloud.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

Return good group when it's found in loop to remove futher check if good
group is found after loop.

Signed-off-by: Kemeng Shi <shikemeng@huaweicloud.com>
Reviewed-by: Ritesh Harjani (IBM) <ritesh.list@gmail.com>
---
 fs/ext4/mballoc.c | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)

diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index 73f8ecdf4d23..88a3c00e484f 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -959,16 +959,14 @@ static void ext4_mb_choose_next_group_goal_fast(struct ext4_allocation_context *
 	for (i = mb_avg_fragment_size_order(ac->ac_sb, ac->ac_g_ex.fe_len);
 	     i < MB_NUM_ORDERS(ac->ac_sb); i++) {
 		grp = ext4_mb_find_good_group_avg_frag_lists(ac, i);
-		if (grp)
-			break;
+		if (grp) {
+			*group = grp->bb_group;
+			ac->ac_flags |= EXT4_MB_CR_GOAL_LEN_FAST_OPTIMIZED;
+			return;
+		}
 	}
 
-	if (grp) {
-		*group = grp->bb_group;
-		ac->ac_flags |= EXT4_MB_CR_GOAL_LEN_FAST_OPTIMIZED;
-	} else {
-		*new_cr = CR_BEST_AVAIL_LEN;
-	}
+	*new_cr = CR_BEST_AVAIL_LEN;
 }
 
 /*
-- 
2.30.0