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Message-ID: <CAHB1NaidN+FquNh2z-UXW8cycM-X5h+6T=XX=fEFyt2VkwXGvw@mail.gmail.com>
Date: Thu, 10 Nov 2022 08:53:26 +0800
From: JunChao Sun <sunjunchao2870@...il.com>
To: Eric Biggers <ebiggers@...nel.org>
Cc: linux-ext4@...r.kernel.org, tytso@....edu,
adilger.kernel@...ger.ca, jack@...e.cz
Subject: Re: [PATCH] ext4: replace kmem_cache_create with KMEM_CACHE
Yeah, maybe we should remove the SLAB_RECLAIM_ACCOUNT flag for static
slab, and 16828088f9e51815 ("ext4: use KMEM_CACHE instead of
kmem_cache_create") have done so. But should we remove
SLAB_RECLAIM_ACCOUNT in this patch or belong to a separate patch?
Eric Biggers <ebiggers@...nel.org> 于2022年11月10日周四 02:00写道:
>
> On Wed, Nov 09, 2022 at 07:38:22AM -0800, JunChao Sun wrote:
> > 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);
> > +
>
> Why use SLAB_RECLAIM_ACCOUNT here?
>
> - Eric
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