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NFSv4: Add tracepoints for debugging file locking

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Set up basic tracepoints for debugging NFSv4 file lock/unlock

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Trond Myklebust
2013-08-12 16:35:20 -04:00
parent 42113a7539
commit d1b748a5e7
2 changed files with 82 additions and 2 deletions
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9
fs/nfs/nfs4proc.c
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@@ -4964,8 +4964,9 @@ static int nfs4_proc_getlk(struct nfs4_state *state, int cmd, struct file_lock *
int err;
do {
err = nfs4_handle_exception(NFS_SERVER(state->inode),
_nfs4_proc_getlk(state, cmd, request),
err = _nfs4_proc_getlk(state, cmd, request);
trace_nfs4_get_lock(request, state, cmd, err);
err = nfs4_handle_exception(NFS_SERVER(state->inode), err,
&exception);
} while (exception.retry);
return err;
@@ -5163,6 +5164,7 @@ static int nfs4_proc_unlck(struct nfs4_state *state, int cmd, struct file_lock *
rpc_put_task(task);
out:
request->fl_flags = fl_flags;
trace_nfs4_unlock(request, state, F_SETLK, status);
return status;
}
@@ -5386,6 +5388,7 @@ static int nfs4_lock_reclaim(struct nfs4_state *state, struct file_lock *request
if (test_bit(NFS_DELEGATED_STATE, &state->flags) != 0)
return 0;
err = _nfs4_do_setlk(state, F_SETLK, request, NFS_LOCK_RECLAIM);
trace_nfs4_lock_reclaim(request, state, F_SETLK, err);
if (err != -NFS4ERR_DELAY)
break;
nfs4_handle_exception(server, err, &exception);
@@ -5408,6 +5411,7 @@ static int nfs4_lock_expired(struct nfs4_state *state, struct file_lock *request
if (test_bit(NFS_DELEGATED_STATE, &state->flags) != 0)
return 0;
err = _nfs4_do_setlk(state, F_SETLK, request, NFS_LOCK_EXPIRED);
trace_nfs4_lock_expired(request, state, F_SETLK, err);
switch (err) {
default:
goto out;
@@ -5530,6 +5534,7 @@ static int nfs4_proc_setlk(struct nfs4_state *state, int cmd, struct file_lock *
do {
err = _nfs4_proc_setlk(state, cmd, request);
trace_nfs4_set_lock(request, state, cmd, err);
if (err == -NFS4ERR_DENIED)
err = -EAGAIN;
err = nfs4_handle_exception(NFS_SERVER(state->inode),