diff mbox

[v2] NFS: SEEK is an NFS v4.2 feature

Message ID 1414007590-14286-1-git-send-email-Anna.Schumaker@Netapp.com (mailing list archive)
State New, archived
Headers show

Commit Message

Schumaker, Anna Oct. 22, 2014, 7:53 p.m. UTC
Somehow the nfs_v4_1_minor_ops had the NFS_CAP_SEEK flag set, enabling
SEEK over v4.1.  This is wrong, and can make servers crash.

Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
---
v2: Fix compile error

 fs/nfs/nfs4proc.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

Comments

J. Bruce Fields Oct. 23, 2014, 5:34 p.m. UTC | #1
On Wed, Oct 22, 2014 at 03:53:10PM -0400, Anna Schumaker wrote:
> Somehow the nfs_v4_1_minor_ops had the NFS_CAP_SEEK flag set, enabling
> SEEK over v4.1.  This is wrong, and can make servers crash.
> 
> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>

Thanks!

Tested-by: J. Bruce Fields <bfields@redhat.com>

--b.

> ---
> v2: Fix compile error
> 
>  fs/nfs/nfs4proc.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
> index 405bd95..8aba549 100644
> --- a/fs/nfs/nfs4proc.c
> +++ b/fs/nfs/nfs4proc.c
> @@ -8408,8 +8408,7 @@ static const struct nfs4_minor_version_ops nfs_v4_1_minor_ops = {
>  		| NFS_CAP_CHANGE_ATTR
>  		| NFS_CAP_POSIX_LOCK
>  		| NFS_CAP_STATEID_NFSV41
> -		| NFS_CAP_ATOMIC_OPEN_V1
> -		| NFS_CAP_SEEK,
> +		| NFS_CAP_ATOMIC_OPEN_V1,
>  	.init_client = nfs41_init_client,
>  	.shutdown_client = nfs41_shutdown_client,
>  	.match_stateid = nfs41_match_stateid,
> @@ -8431,7 +8430,8 @@ static const struct nfs4_minor_version_ops nfs_v4_2_minor_ops = {
>  		| NFS_CAP_CHANGE_ATTR
>  		| NFS_CAP_POSIX_LOCK
>  		| NFS_CAP_STATEID_NFSV41
> -		| NFS_CAP_ATOMIC_OPEN_V1,
> +		| NFS_CAP_ATOMIC_OPEN_V1
> +		| NFS_CAP_SEEK,
>  	.init_client = nfs41_init_client,
>  	.shutdown_client = nfs41_shutdown_client,
>  	.match_stateid = nfs41_match_stateid,
> -- 
> 2.1.2
> 
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diff mbox

Patch

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 405bd95..8aba549 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -8408,8 +8408,7 @@  static const struct nfs4_minor_version_ops nfs_v4_1_minor_ops = {
 		| NFS_CAP_CHANGE_ATTR
 		| NFS_CAP_POSIX_LOCK
 		| NFS_CAP_STATEID_NFSV41
-		| NFS_CAP_ATOMIC_OPEN_V1
-		| NFS_CAP_SEEK,
+		| NFS_CAP_ATOMIC_OPEN_V1,
 	.init_client = nfs41_init_client,
 	.shutdown_client = nfs41_shutdown_client,
 	.match_stateid = nfs41_match_stateid,
@@ -8431,7 +8430,8 @@  static const struct nfs4_minor_version_ops nfs_v4_2_minor_ops = {
 		| NFS_CAP_CHANGE_ATTR
 		| NFS_CAP_POSIX_LOCK
 		| NFS_CAP_STATEID_NFSV41
-		| NFS_CAP_ATOMIC_OPEN_V1,
+		| NFS_CAP_ATOMIC_OPEN_V1
+		| NFS_CAP_SEEK,
 	.init_client = nfs41_init_client,
 	.shutdown_client = nfs41_shutdown_client,
 	.match_stateid = nfs41_match_stateid,