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Diffstat (limited to 'fs/nfs/nfs4proc.c')
-rw-r--r--fs/nfs/nfs4proc.c69
1 files changed, 30 insertions, 39 deletions
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index af80b5981486..0ddc20102d46 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -2626,14 +2626,11 @@ static int _nfs4_proc_getlk(struct nfs4_state *state, int cmd, struct file_lock
2626 down_read(&clp->cl_sem); 2626 down_read(&clp->cl_sem);
2627 nlo.clientid = clp->cl_clientid; 2627 nlo.clientid = clp->cl_clientid;
2628 down(&state->lock_sema); 2628 down(&state->lock_sema);
2629 lsp = nfs4_find_lock_state(state, request->fl_owner); 2629 status = nfs4_set_lock_state(state, request);
2630 if (lsp) 2630 if (status != 0)
2631 nlo.id = lsp->ls_id; 2631 goto out;
2632 else { 2632 lsp = request->fl_u.nfs4_fl.owner;
2633 spin_lock(&clp->cl_lock); 2633 nlo.id = lsp->ls_id;
2634 nlo.id = nfs4_alloc_lockowner_id(clp);
2635 spin_unlock(&clp->cl_lock);
2636 }
2637 arg.u.lockt = &nlo; 2634 arg.u.lockt = &nlo;
2638 status = rpc_call_sync(server->client, &msg, 0); 2635 status = rpc_call_sync(server->client, &msg, 0);
2639 if (!status) { 2636 if (!status) {
@@ -2654,8 +2651,7 @@ static int _nfs4_proc_getlk(struct nfs4_state *state, int cmd, struct file_lock
2654 request->fl_pid = 0; 2651 request->fl_pid = 0;
2655 status = 0; 2652 status = 0;
2656 } 2653 }
2657 if (lsp) 2654out:
2658 nfs4_put_lock_state(lsp);
2659 up(&state->lock_sema); 2655 up(&state->lock_sema);
2660 up_read(&clp->cl_sem); 2656 up_read(&clp->cl_sem);
2661 return status; 2657 return status;
@@ -2715,28 +2711,26 @@ static int _nfs4_proc_unlck(struct nfs4_state *state, int cmd, struct file_lock
2715 }; 2711 };
2716 struct nfs4_lock_state *lsp; 2712 struct nfs4_lock_state *lsp;
2717 struct nfs_locku_opargs luargs; 2713 struct nfs_locku_opargs luargs;
2718 int status = 0; 2714 int status;
2719 2715
2720 down_read(&clp->cl_sem); 2716 down_read(&clp->cl_sem);
2721 down(&state->lock_sema); 2717 down(&state->lock_sema);
2722 lsp = nfs4_find_lock_state(state, request->fl_owner); 2718 status = nfs4_set_lock_state(state, request);
2723 if (!lsp) 2719 if (status != 0)
2724 goto out; 2720 goto out;
2721 lsp = request->fl_u.nfs4_fl.owner;
2725 /* We might have lost the locks! */ 2722 /* We might have lost the locks! */
2726 if ((lsp->ls_flags & NFS_LOCK_INITIALIZED) != 0) { 2723 if ((lsp->ls_flags & NFS_LOCK_INITIALIZED) == 0)
2727 luargs.seqid = lsp->ls_seqid; 2724 goto out;
2728 memcpy(&luargs.stateid, &lsp->ls_stateid, sizeof(luargs.stateid)); 2725 luargs.seqid = lsp->ls_seqid;
2729 arg.u.locku = &luargs; 2726 memcpy(&luargs.stateid, &lsp->ls_stateid, sizeof(luargs.stateid));
2730 status = rpc_call_sync(server->client, &msg, RPC_TASK_NOINTR); 2727 arg.u.locku = &luargs;
2731 nfs4_increment_lock_seqid(status, lsp); 2728 status = rpc_call_sync(server->client, &msg, RPC_TASK_NOINTR);
2732 } 2729 nfs4_increment_lock_seqid(status, lsp);
2733 2730
2734 if (status == 0) { 2731 if (status == 0)
2735 memcpy(&lsp->ls_stateid, &res.u.stateid, 2732 memcpy(&lsp->ls_stateid, &res.u.stateid,
2736 sizeof(lsp->ls_stateid)); 2733 sizeof(lsp->ls_stateid));
2737 nfs4_notify_unlck(state, request, lsp);
2738 }
2739 nfs4_put_lock_state(lsp);
2740out: 2734out:
2741 up(&state->lock_sema); 2735 up(&state->lock_sema);
2742 if (status == 0) 2736 if (status == 0)
@@ -2762,7 +2756,7 @@ static int _nfs4_do_setlk(struct nfs4_state *state, int cmd, struct file_lock *r
2762{ 2756{
2763 struct inode *inode = state->inode; 2757 struct inode *inode = state->inode;
2764 struct nfs_server *server = NFS_SERVER(inode); 2758 struct nfs_server *server = NFS_SERVER(inode);
2765 struct nfs4_lock_state *lsp; 2759 struct nfs4_lock_state *lsp = request->fl_u.nfs4_fl.owner;
2766 struct nfs_lockargs arg = { 2760 struct nfs_lockargs arg = {
2767 .fh = NFS_FH(inode), 2761 .fh = NFS_FH(inode),
2768 .type = nfs4_lck_type(cmd, request), 2762 .type = nfs4_lck_type(cmd, request),
@@ -2784,9 +2778,6 @@ static int _nfs4_do_setlk(struct nfs4_state *state, int cmd, struct file_lock *r
2784 }; 2778 };
2785 int status; 2779 int status;
2786 2780
2787 lsp = nfs4_get_lock_state(state, request->fl_owner);
2788 if (lsp == NULL)
2789 return -ENOMEM;
2790 if (!(lsp->ls_flags & NFS_LOCK_INITIALIZED)) { 2781 if (!(lsp->ls_flags & NFS_LOCK_INITIALIZED)) {
2791 struct nfs4_state_owner *owner = state->owner; 2782 struct nfs4_state_owner *owner = state->owner;
2792 struct nfs_open_to_lock otl = { 2783 struct nfs_open_to_lock otl = {
@@ -2808,27 +2799,26 @@ static int _nfs4_do_setlk(struct nfs4_state *state, int cmd, struct file_lock *r
2808 * seqid mutating errors */ 2799 * seqid mutating errors */
2809 nfs4_increment_seqid(status, owner); 2800 nfs4_increment_seqid(status, owner);
2810 up(&owner->so_sema); 2801 up(&owner->so_sema);
2802 if (status == 0) {
2803 lsp->ls_flags |= NFS_LOCK_INITIALIZED;
2804 lsp->ls_seqid++;
2805 }
2811 } else { 2806 } else {
2812 struct nfs_exist_lock el = { 2807 struct nfs_exist_lock el = {
2813 .seqid = lsp->ls_seqid, 2808 .seqid = lsp->ls_seqid,
2814 }; 2809 };
2815 memcpy(&el.stateid, &lsp->ls_stateid, sizeof(el.stateid)); 2810 memcpy(&el.stateid, &lsp->ls_stateid, sizeof(el.stateid));
2816 largs.u.exist_lock = ⪙ 2811 largs.u.exist_lock = ⪙
2817 largs.new_lock_owner = 0;
2818 arg.u.lock = &largs; 2812 arg.u.lock = &largs;
2819 status = rpc_call_sync(server->client, &msg, RPC_TASK_NOINTR); 2813 status = rpc_call_sync(server->client, &msg, RPC_TASK_NOINTR);
2814 /* increment seqid on success, and * seqid mutating errors*/
2815 nfs4_increment_lock_seqid(status, lsp);
2820 } 2816 }
2821 /* increment seqid on success, and * seqid mutating errors*/
2822 nfs4_increment_lock_seqid(status, lsp);
2823 /* save the returned stateid. */ 2817 /* save the returned stateid. */
2824 if (status == 0) { 2818 if (status == 0)
2825 memcpy(&lsp->ls_stateid, &res.u.stateid, sizeof(nfs4_stateid)); 2819 memcpy(&lsp->ls_stateid, &res.u.stateid, sizeof(nfs4_stateid));
2826 lsp->ls_flags |= NFS_LOCK_INITIALIZED; 2820 else if (status == -NFS4ERR_DENIED)
2827 if (!reclaim)
2828 nfs4_notify_setlk(state, request, lsp);
2829 } else if (status == -NFS4ERR_DENIED)
2830 status = -EAGAIN; 2821 status = -EAGAIN;
2831 nfs4_put_lock_state(lsp);
2832 return status; 2822 return status;
2833} 2823}
2834 2824
@@ -2869,7 +2859,9 @@ static int _nfs4_proc_setlk(struct nfs4_state *state, int cmd, struct file_lock
2869 2859
2870 down_read(&clp->cl_sem); 2860 down_read(&clp->cl_sem);
2871 down(&state->lock_sema); 2861 down(&state->lock_sema);
2872 status = _nfs4_do_setlk(state, cmd, request, 0); 2862 status = nfs4_set_lock_state(state, request);
2863 if (status == 0)
2864 status = _nfs4_do_setlk(state, cmd, request, 0);
2873 up(&state->lock_sema); 2865 up(&state->lock_sema);
2874 if (status == 0) { 2866 if (status == 0) {
2875 /* Note: we always want to sleep here! */ 2867 /* Note: we always want to sleep here! */
@@ -2927,7 +2919,6 @@ nfs4_proc_lock(struct file *filp, int cmd, struct file_lock *request)
2927 if (signalled()) 2919 if (signalled())
2928 break; 2920 break;
2929 } while(status < 0); 2921 } while(status < 0);
2930
2931 return status; 2922 return status;
2932} 2923}
2933 2924