linux-ext4 - [PATCH v5 1/2] ext4: reorganize if statement of ext4_mb_release

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Message-ID: <5439ac6f-db79-ad68-76c1-a4dda9aa0cc3@gmail.com>
Date:   Mon, 17 Aug 2020 15:36:06 +0800
From:   brookxu <brookxu.cn@...il.com>
To:     adilger.kernel@...ger.ca, tytso@....edu
Cc:     riteshh@...ux.ibm.com, jack@...e.cz, linux-ext4@...r.kernel.org
Subject: [PATCH v5 1/2] ext4: reorganize if statement of
 ext4_mb_release_context()

Reorganize the if statement of ext4_mb_release_context(), make it
easier to read.

Signed-off-by: Chunguang Xu <brookxu@...cent.com>
---
 fs/ext4/mballoc.c | 27 +++++++++++++--------------
 1 file changed, 13 insertions(+), 14 deletions(-)

diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index 70b110f..51f37f1 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -4567,20 +4567,19 @@ static int ext4_mb_release_context(struct ext4_allocation_context *ac)
 			pa->pa_free -= ac->ac_b_ex.fe_len;
 			pa->pa_len -= ac->ac_b_ex.fe_len;
 			spin_unlock(&pa->pa_lock);
-		}
-	}
-	if (pa) {
-		/*
-		 * We want to add the pa to the right bucket.
-		 * Remove it from the list and while adding
-		 * make sure the list to which we are adding
-		 * doesn't grow big.
-		 */
-		if ((pa->pa_type == MB_GROUP_PA) && likely(pa->pa_free)) {
-			spin_lock(pa->pa_obj_lock);
-			list_del_rcu(&pa->pa_inode_list);
-			spin_unlock(pa->pa_obj_lock);
-			ext4_mb_add_n_trim(ac);
+
+			/*
+			 * We want to add the pa to the right bucket.
+			 * Remove it from the list and while adding
+			 * make sure the list to which we are adding
+			 * doesn't grow big.
+			 */
+			if (likely(pa->pa_free)) {
+				spin_lock(pa->pa_obj_lock);
+				list_del_rcu(&pa->pa_inode_list);
+				spin_unlock(pa->pa_obj_lock);
+				ext4_mb_add_n_trim(ac);
+			}
 		}
 		ext4_mb_put_pa(ac, ac->ac_sb, pa);
 	}
-- 
1.8.3.1