Hi Jeff,
On 09/06/2016 11:12 AM, Jeff Layton wrote:
> Signed-off-by: Jeff Layton <jlayton@xxxxxxxxxx>
> ---
> fs/nfs/callback_proc.c | 2 +-
> fs/nfs/nfs4proc.c | 13 +++++++++++--
> 2 files changed, 12 insertions(+), 3 deletions(-)
>
> diff --git a/fs/nfs/callback_proc.c b/fs/nfs/callback_proc.c
> index 4ba6a8763f91..39a34d5083fe 100644
> --- a/fs/nfs/callback_proc.c
> +++ b/fs/nfs/callback_proc.c
> @@ -645,7 +645,7 @@ __be32 nfs4_callback_notify_lock(struct cb_notify_lock_args *args, void *dummy,
> fc_tbl = &cps->clp->cl_session->fc_slot_table;
>
> status = htonl(NFS4_OK);
> - __wake_up(&cps->clp->cl_lock_waitq, TASK_NORMAL, 0, &args->cbnl_owner);
> + __wake_up(&cps->clp->cl_lock_waitq, TASK_NORMAL, 0, args);
> return status;
> }
> #endif /* CONFIG_NFS_V4_1 */
> diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
> index 3a6669063c44..6829b998776d 100644
> --- a/fs/nfs/nfs4proc.c
> +++ b/fs/nfs/nfs4proc.c
> @@ -5533,6 +5533,7 @@ int nfs4_proc_delegreturn(struct inode *inode, struct rpc_cred *cred, const nfs4
>
> struct nfs4_lock_waiter {
> struct task_struct *task;
> + struct inode *inode;
> struct nfs_lowner *owner;
> bool notified;
> };
> @@ -5541,8 +5542,10 @@ static int
> nfs4_wake_lock_waiter(wait_queue_t *wait, unsigned int mode, int flags, void *key)
> {
> int ret;
> + struct cb_notify_lock_args *cbnl = key;
I get this when I try compiling with CONFIG_NFS_V4=m but CONFIG_NFS_V4_1=n:
fs/nfs/nfs4proc.c: In function 'nfs4_wake_lock_waiter':
fs/nfs/nfs4proc.c:5491:35: error: dereferencing pointer to incomplete type 'struct cb_notify_lock_args'
struct nfs_lowner *lowner = &cbnl->cbnl_owner,
Just thought you should know :)
Anna
^~
> struct nfs4_lock_waiter *waiter = wait->private;
> - struct nfs_lowner *lowner = key, *wowner = waiter->owner;
> + struct nfs_lowner *lowner = &cbnl->cbnl_owner,
> + *wowner = waiter->owner;
>
> /* Don't wake anybody if the string looked bogus */
> if (!lowner->id && !lowner->s_dev)
> @@ -5554,6 +5557,10 @@ nfs4_wake_lock_waiter(wait_queue_t *wait, unsigned int mode, int flags, void *ke
> lowner->s_dev != wowner->s_dev)
> return 0;
>
> + /* Make sure it's for the right inode */
> + if (nfs_compare_fh(NFS_FH(waiter->inode), &cbnl->cbnl_fh))
> + return 0;
> +
> waiter->notified = true;
>
> /* override "private" so we can use default_wake_function */
> @@ -6274,12 +6281,14 @@ nfs4_proc_lock(struct file *filp, int cmd, struct file_lock *request)
>
> do {
> struct nfs4_lock_state *lsp = request->fl_u.nfs4_fl.owner;
> - struct nfs_server *server = NFS_SERVER(lsp->ls_state->inode);
> + struct inode *inode = lsp->ls_state->inode;
> + struct nfs_server *server = NFS_SERVER(inode);
> struct nfs_client *clp = server->nfs_client;
> struct nfs_lowner owner = { .clientid = clp->cl_clientid,
> .id = lsp->ls_seqid.owner_id,
> .s_dev = server->s_dev };
> struct nfs4_lock_waiter waiter = { .task = current,
> + .inode = inode,
> .owner = &owner,
> .notified = false };
> wait_queue_t wait;
>
--
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