[v1] fs: require filesystems to explicitly opt-in to nfsd export support

[PATCH 02/29] tmpfs: add EXPORT_OP_STABLE_HANDLES flag to export operations

Posted by Jeff Layton 3 weeks, 3 days ago

Add the EXPORT_OP_STABLE_HANDLES flag to tmpfs export operations to indicate
that this filesystem can be exported via NFS.

Signed-off-by: Jeff Layton <jlayton@kernel.org>
---
 mm/shmem.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/mm/shmem.c b/mm/shmem.c
index ec6c01378e9d2bd47db9d7506e4d6a565e092185..c64c4410b4fd9961599a5ea768b469d8184e713e 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -4477,6 +4477,7 @@ static const struct export_operations shmem_export_ops = {
 	.get_parent     = shmem_get_parent,
 	.encode_fh      = shmem_encode_fh,
 	.fh_to_dentry	= shmem_fh_to_dentry,
+	.flags		= EXPORT_OP_STABLE_HANDLES,
 };
 
 enum shmem_param {

-- 
2.52.0

Re: [PATCH 02/29] tmpfs: add EXPORT_OP_STABLE_HANDLES flag to export operations

Posted by Jan Kara 3 weeks, 2 days ago

On Thu 15-01-26 12:47:33, Jeff Layton wrote:
> Add the EXPORT_OP_STABLE_HANDLES flag to tmpfs export operations to indicate
> that this filesystem can be exported via NFS.
> 
> Signed-off-by: Jeff Layton <jlayton@kernel.org>

Looks good. Feel free to add:

Reviewed-by: Jan Kara <jack@suse.cz>

								Honza

> ---
>  mm/shmem.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/mm/shmem.c b/mm/shmem.c
> index ec6c01378e9d2bd47db9d7506e4d6a565e092185..c64c4410b4fd9961599a5ea768b469d8184e713e 100644
> --- a/mm/shmem.c
> +++ b/mm/shmem.c
> @@ -4477,6 +4477,7 @@ static const struct export_operations shmem_export_ops = {
>  	.get_parent     = shmem_get_parent,
>  	.encode_fh      = shmem_encode_fh,
>  	.fh_to_dentry	= shmem_fh_to_dentry,
> +	.flags		= EXPORT_OP_STABLE_HANDLES,
>  };
>  
>  enum shmem_param {
> 
> -- 
> 2.52.0
> 
-- 
Jan Kara <jack@suse.com>
SUSE Labs, CR