linux-ext4 - [PATCH] ext4: replace kmem_cache_create with KMEM

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Message-Id: <20221109153822.80250-1-sunjunchao2870@gmail.com>
Date:   Wed,  9 Nov 2022 07:38:22 -0800
From:   JunChao Sun <sunjunchao2870@...il.com>
To:     linux-ext4@...r.kernel.org
Cc:     tytso@....edu, adilger.kernel@...ger.ca, jack@...e.cz,
        JunChao Sun <sunjunchao2870@...il.com>
Subject: [PATCH] ext4: replace kmem_cache_create with KMEM_CACHE

Replace kmem_cache_create with KMEM_CACHE macro that
guaranteed struct alignment

Signed-off-by: JunChao Sun <sunjunchao2870@...il.com>
---
 fs/ext4/extents_status.c | 8 ++------
 fs/ext4/readpage.c       | 5 ++---
 2 files changed, 4 insertions(+), 9 deletions(-)

diff --git a/fs/ext4/extents_status.c b/fs/ext4/extents_status.c
index cd0a861853e3..97eccc0028a1 100644
--- a/fs/ext4/extents_status.c
+++ b/fs/ext4/extents_status.c
@@ -155,9 +155,7 @@ static void __revise_pending(struct inode *inode, ext4_lblk_t lblk,
 
 int __init ext4_init_es(void)
 {
-	ext4_es_cachep = kmem_cache_create("ext4_extent_status",
-					   sizeof(struct extent_status),
-					   0, (SLAB_RECLAIM_ACCOUNT), NULL);
+	ext4_es_cachep = KMEM_CACHE(extent_status, SLAB_RECLAIM_ACCOUNT);
 	if (ext4_es_cachep == NULL)
 		return -ENOMEM;
 	return 0;
@@ -1807,9 +1805,7 @@ static void ext4_print_pending_tree(struct inode *inode)
 
 int __init ext4_init_pending(void)
 {
-	ext4_pending_cachep = kmem_cache_create("ext4_pending_reservation",
-					   sizeof(struct pending_reservation),
-					   0, (SLAB_RECLAIM_ACCOUNT), NULL);
+	ext4_pending_cachep = KMEM_CACHE(pending_reservation, SLAB_RECLAIM_ACCOUNT);
 	if (ext4_pending_cachep == NULL)
 		return -ENOMEM;
 	return 0;
diff --git a/fs/ext4/readpage.c b/fs/ext4/readpage.c
index 3d21eae267fc..773176e7f9f5 100644
--- a/fs/ext4/readpage.c
+++ b/fs/ext4/readpage.c
@@ -410,9 +410,8 @@ int ext4_mpage_readpages(struct inode *inode,
 
 int __init ext4_init_post_read_processing(void)
 {
-	bio_post_read_ctx_cache =
-		kmem_cache_create("ext4_bio_post_read_ctx",
-				  sizeof(struct bio_post_read_ctx), 0, 0, NULL);
+	bio_post_read_ctx_cache = KMEM_CACHE(bio_post_read_ctx, SLAB_RECLAIM_ACCOUNT);
+
 	if (!bio_post_read_ctx_cache)
 		goto fail;
 	bio_post_read_ctx_pool =
-- 
2.17.1