linux-kernel - Re: [PATCH 14/38] vfs: Convert ocxlflash to fs

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Date:   Tue, 19 Mar 2019 09:53:29 -0500
From:   "Matthew R. Ochs" <mrochs@...ux.ibm.com>
To:     David Howells <dhowells@...hat.com>
Cc:     viro@...iv.linux.org.uk, "Manoj N. Kumar" <manoj@...ux.ibm.com>,
        Uma Krishnan <ukrishn@...ux.ibm.com>,
        "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        linux-scsi@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 14/38] vfs: Convert ocxlflash to fs_context

On Thu, Mar 14, 2019 at 04:10:47PM +0000, David Howells wrote:
> Signed-off-by: David Howells <dhowells@...hat.com>
> cc: "Manoj N. Kumar" <manoj@...ux.ibm.com>
> cc: "Matthew R. Ochs" <mrochs@...ux.ibm.com>
> cc: Uma Krishnan <ukrishn@...ux.ibm.com>
> cc: "James E.J. Bottomley" <jejb@...ux.ibm.com>
> cc: "Martin K. Petersen" <martin.petersen@...cle.com>
> cc: linux-scsi@...r.kernel.org

Acked-by: Matthew R. Ochs <mrochs@...ux.vnet.ibm.com>

> ---
> 
>  drivers/scsi/cxlflash/ocxl_hw.c |   21 ++++++---------------
>  1 file changed, 6 insertions(+), 15 deletions(-)
> 
> diff --git a/drivers/scsi/cxlflash/ocxl_hw.c b/drivers/scsi/cxlflash/ocxl_hw.c
> index 37b8dc60f5f6..a8d2cc6390c7 100644
> --- a/drivers/scsi/cxlflash/ocxl_hw.c
> +++ b/drivers/scsi/cxlflash/ocxl_hw.c
> @@ -16,6 +16,7 @@
>  #include <linux/idr.h>
>  #include <linux/module.h>
>  #include <linux/mount.h>
> +#include <linux/fs_context.h>
>  #include <linux/poll.h>
>  #include <linux/sched/signal.h>
>  
> @@ -39,27 +40,17 @@ static const struct dentry_operations ocxlflash_fs_dops = {
>  	.d_dname	= simple_dname,
>  };
>  
> -/*
> - * ocxlflash_fs_mount() - mount the pseudo-filesystem
> - * @fs_type:	File system type.
> - * @flags:	Flags for the filesystem.
> - * @dev_name:	Device name associated with the filesystem.
> - * @data:	Data pointer.
> - *
> - * Return: pointer to the directory entry structure
> - */
> -static struct dentry *ocxlflash_fs_mount(struct file_system_type *fs_type,
> -					 int flags, const char *dev_name,
> -					 void *data)
> +static int ocxlflash_fs_init_fs_context(struct fs_context *fc)
>  {
> -	return mount_pseudo(fs_type, "ocxlflash:", NULL, &ocxlflash_fs_dops,
> -			    OCXLFLASH_FS_MAGIC);
> +	return vfs_init_pseudo_fs_context(fc, "ocxlflash:",
> +					  NULL, NULL,
> +					  &ocxlflash_fs_dops, OCXLFLASH_FS_MAGIC);
>  }
>  
>  static struct file_system_type ocxlflash_fs_type = {
>  	.name		= "ocxlflash",
>  	.owner		= THIS_MODULE,
> -	.mount		= ocxlflash_fs_mount,
> +	.init_fs_context = ocxlflash_fs_init_fs_context,
>  	.kill_sb	= kill_anon_super,
>  };
>  
>