linux-kernel - Re: [PATCH v2 3/3] fuse: kmemcg account fs data

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Date:   Thu, 22 Aug 2019 14:43:17 -0700
From:   Shakeel Butt <shakeelb@...gle.com>
To:     Khazhismel Kumykov <khazhy@...gle.com>
Cc:     miklos@...redi.hu, linux-fsdevel <linux-fsdevel@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 3/3] fuse: kmemcg account fs data

On Thu, Aug 22, 2019 at 1:00 PM Khazhismel Kumykov <khazhy@...gle.com> wrote:
>
> account per-file, dentry, and inode data
>
> accounts the per-file reserved request, adding new
> fuse_request_alloc_account()
>
> blockdev/superblock and temporary per-request data was left alone, as
> this usually isn't accounted
>
> Signed-off-by: Khazhismel Kumykov <khazhy@...gle.com>

Reviewed-by: Shakeel Butt <shakeelb@...gle.com>

> ---
>  fs/fuse/dir.c   | 3 ++-
>  fs/fuse/file.c  | 4 ++--
>  fs/fuse/inode.c | 3 ++-
>  3 files changed, 6 insertions(+), 4 deletions(-)
>
> diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
> index f9c59a296568..2013e1222de7 100644
> --- a/fs/fuse/dir.c
> +++ b/fs/fuse/dir.c
> @@ -258,7 +258,8 @@ static int fuse_dentry_revalidate(struct dentry *entry, unsigned int flags)
>  #if BITS_PER_LONG < 64
>  static int fuse_dentry_init(struct dentry *dentry)
>  {
> -       dentry->d_fsdata = kzalloc(sizeof(union fuse_dentry), GFP_KERNEL);
> +       dentry->d_fsdata = kzalloc(sizeof(union fuse_dentry),
> +                                  GFP_KERNEL_ACCOUNT | __GFP_RECLAIMABLE);
>
>         return dentry->d_fsdata ? 0 : -ENOMEM;
>  }
> diff --git a/fs/fuse/file.c b/fs/fuse/file.c
> index 572d8347ebcb..ae8c8016bb8e 100644
> --- a/fs/fuse/file.c
> +++ b/fs/fuse/file.c
> @@ -45,12 +45,12 @@ struct fuse_file *fuse_file_alloc(struct fuse_conn *fc)
>  {
>         struct fuse_file *ff;
>
> -       ff = kzalloc(sizeof(struct fuse_file), GFP_KERNEL);
> +       ff = kzalloc(sizeof(struct fuse_file), GFP_KERNEL_ACCOUNT);
>         if (unlikely(!ff))
>                 return NULL;
>
>         ff->fc = fc;
> -       ff->reserved_req = fuse_request_alloc(0, GFP_KERNEL);
> +       ff->reserved_req = fuse_request_alloc(0, GFP_KERNEL_ACCOUNT);
>         if (unlikely(!ff->reserved_req)) {
>                 kfree(ff);
>                 return NULL;
> diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
> index 5afd1872b8b1..ad92e93eaddd 100644
> --- a/fs/fuse/inode.c
> +++ b/fs/fuse/inode.c
> @@ -76,7 +76,8 @@ struct fuse_mount_data {
>
>  struct fuse_forget_link *fuse_alloc_forget(void)
>  {
> -       return kzalloc(sizeof(struct fuse_forget_link), GFP_KERNEL);
> +       return kzalloc(sizeof(struct fuse_forget_link),
> +                      GFP_KERNEL_ACCOUNT | __GFP_RECLAIMABLE);
>  }
>
>  static struct inode *fuse_alloc_inode(struct super_block *sb)
> --
> 2.23.0.187.g17f5b7556c-goog
>