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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	[thread overview]
Message-ID: <20230725185106.2147273-9-shikemeng@huaweicloud.com> (raw)
In-Reply-To: <20230725185106.2147273-1-shikemeng@huaweicloud.com>

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


  parent reply	other threads:[~2023-07-25 10:52 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-07-25 18:50 [PATCH v2 00/10] A few fixes and cleanups to mballoc Kemeng Shi
2023-07-25 18:50 ` [PATCH v2 01/10] ext4: correct grp validation in ext4_mb_good_group Kemeng Shi
2023-07-25 11:06   ` Ritesh Harjani
2023-07-25 18:50 ` [PATCH v2 02/10] ext4: avoid potential data overflow in next_linear_group Kemeng Shi
2023-07-25 18:50 ` [PATCH v2 03/10] ext4: return found group directly in ext4_mb_choose_next_group_p2_aligned Kemeng Shi
2023-07-25 18:51 ` [PATCH v2 04/10] ext4: use is_power_of_2 helper in ext4_mb_regular_allocator Kemeng Shi
2023-07-25 18:51 ` [PATCH v2 05/10] ext4: remove unnecessary return for void function Kemeng Shi
2023-07-25 18:51 ` [PATCH v2 06/10] ext4: replace the traditional ternary conditional operator with with max()/min() Kemeng Shi
2023-07-25 18:51 ` [PATCH v2 07/10] ext4: remove unused ext4_{set}/{clear}_bit_atomic Kemeng Shi
2023-07-25 18:51 ` Kemeng Shi [this message]
2023-07-25 18:51 ` [PATCH v2 09/10] ext4: return found group directly in ext4_mb_choose_next_group_best_avail Kemeng Shi
2023-07-25 18:51 ` [PATCH v2 10/10] ext4: correct some stale comment of criteria Kemeng Shi
2023-07-26 14:50   ` Ojaswin Mujoo
2023-07-27  1:29     ` Kemeng Shi
2023-07-27  5:36       ` Ojaswin Mujoo

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