[PATCH] Simplify downgrade_lease()

Volker Lendecke Volker.Lendecke at SerNet.DE
Mon Sep 17 10:28:21 UTC 2018


Hi!

Attached find a patchset that (to me) simplifies the logic in
downgrade_lease(). Some of the patches are personal preference, but to
me the resulting code flow (~20 lines less overall) is much easier to
grasp. I'm also happy to squash this patchset into one if that makes
it easier.

Review appreciated!

Thanks, Volker

-- 
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-------------- next part --------------
From 4156fa781ed07f640a9242bf48e0a1283a207267 Mon Sep 17 00:00:00 2001
From: Volker Lendecke <vl at samba.org>
Date: Fri, 14 Sep 2018 13:18:50 +0200
Subject: [PATCH 1/7] smbd: Move downgrade_share_lease() to smbd/oplock.c

This function is pretty closely entangled with its only caller. In
particular the NT_STATUS_OPLOCK_BREAK_IN_PROGRESS triggers acitivity
in the caller, and that's the only case where "*_l" is being set to
non-NULL. Prepare for cleanup

Signed-off-by: Volker Lendecke <vl at samba.org>
---
 source3/locking/locking.c | 85 -----------------------------------------------
 source3/locking/proto.h   |  6 ----
 source3/smbd/oplock.c     | 85 +++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 85 insertions(+), 91 deletions(-)

diff --git a/source3/locking/locking.c b/source3/locking/locking.c
index 8ee92370aed..ae5f0bbcf33 100644
--- a/source3/locking/locking.c
+++ b/source3/locking/locking.c
@@ -969,91 +969,6 @@ bool downgrade_share_oplock(struct share_mode_lock *lck, files_struct *fsp)
 	return True;
 }
 
-NTSTATUS downgrade_share_lease(struct smbd_server_connection *sconn,
-			       struct share_mode_lock *lck,
-			       const struct smb2_lease_key *key,
-			       uint32_t new_lease_state,
-			       struct share_mode_lease **_l)
-{
-	struct share_mode_data *d = lck->data;
-	struct share_mode_lease *l;
-	uint32_t i;
-
-	*_l = NULL;
-
-	for (i=0; i<d->num_leases; i++) {
-		if (smb2_lease_equal(&sconn->client->connections->smb2.client.guid,
-				     key,
-				     &d->leases[i].client_guid,
-				     &d->leases[i].lease_key)) {
-			break;
-		}
-	}
-	if (i == d->num_leases) {
-		DEBUG(10, ("lease not found\n"));
-		return NT_STATUS_INVALID_PARAMETER;
-	}
-
-	l = &d->leases[i];
-
-	if (!l->breaking) {
-		DBG_WARNING("Attempt to break from %"PRIu32" to %"PRIu32" - "
-			    "but we're not in breaking state\n",
-			    l->current_state, new_lease_state);
-		return NT_STATUS_UNSUCCESSFUL;
-	}
-
-	/*
-	 * Can't upgrade anything: l->breaking_to_requested (and l->current_state)
-	 * must be a strict bitwise superset of new_lease_state
-	 */
-	if ((new_lease_state & l->breaking_to_requested) != new_lease_state) {
-		DBG_WARNING("Attempt to upgrade from %"PRIu32" to %"PRIu32" "
-			    "- expected %"PRIu32"\n",
-			    l->current_state, new_lease_state,
-			    l->breaking_to_requested);
-		return NT_STATUS_REQUEST_NOT_ACCEPTED;
-	}
-
-	if (l->current_state != new_lease_state) {
-		l->current_state = new_lease_state;
-		d->modified = true;
-	}
-
-	if ((new_lease_state & ~l->breaking_to_required) != 0) {
-		DBG_INFO("lease state %"PRIu32" not fully broken from "
-			 "%"PRIu32" to %"PRIu32"\n",
-			 new_lease_state,
-			 l->current_state,
-			 l->breaking_to_required);
-		l->breaking_to_requested = l->breaking_to_required;
-		if (l->current_state & (~SMB2_LEASE_READ)) {
-			/*
-			 * Here we break in steps, as windows does
-			 * see the breaking3 and v2_breaking3 tests.
-			 */
-			l->breaking_to_requested |= SMB2_LEASE_READ;
-		}
-		d->modified = true;
-		*_l = l;
-		return NT_STATUS_OPLOCK_BREAK_IN_PROGRESS;
-	}
-
-	DBG_DEBUG("breaking from %"PRIu32" to %"PRIu32" - "
-		  "expected %"PRIu32"\n",
-		  l->current_state,
-		  new_lease_state,
-		  l->breaking_to_requested);
-
-	l->breaking_to_requested = 0;
-	l->breaking_to_required = 0;
-	l->breaking = false;
-
-	d->modified = true;
-
-	return NT_STATUS_OK;
-}
-
 /****************************************************************************
  Adds a delete on close token.
 ****************************************************************************/
diff --git a/source3/locking/proto.h b/source3/locking/proto.h
index b615a4ae6d0..22b79669ff0 100644
--- a/source3/locking/proto.h
+++ b/source3/locking/proto.h
@@ -184,12 +184,6 @@ bool mark_share_mode_disconnected(struct share_mode_lock *lck,
 				  struct files_struct *fsp);
 bool remove_share_oplock(struct share_mode_lock *lck, files_struct *fsp);
 bool downgrade_share_oplock(struct share_mode_lock *lck, files_struct *fsp);
-struct share_mode_lease;
-NTSTATUS downgrade_share_lease(struct smbd_server_connection *sconn,
-			       struct share_mode_lock *lck,
-			       const struct smb2_lease_key *key,
-			       uint32_t new_lease_state,
-			       struct share_mode_lease **_l);
 bool get_delete_on_close_token(struct share_mode_lock *lck,
 				uint32_t name_hash,
 				const struct security_token **pp_nt_tok,
diff --git a/source3/smbd/oplock.c b/source3/smbd/oplock.c
index 827dbeb4ef2..57e4e699c4a 100644
--- a/source3/smbd/oplock.c
+++ b/source3/smbd/oplock.c
@@ -517,6 +517,91 @@ static struct files_struct *downgrade_lease_fsps(struct files_struct *fsp,
 	return NULL;
 }
 
+static NTSTATUS downgrade_share_lease(struct smbd_server_connection *sconn,
+				      struct share_mode_lock *lck,
+				      const struct smb2_lease_key *key,
+				      uint32_t new_lease_state,
+				      struct share_mode_lease **_l)
+{
+	struct share_mode_data *d = lck->data;
+	struct share_mode_lease *l;
+	uint32_t i;
+
+	*_l = NULL;
+
+	for (i=0; i<d->num_leases; i++) {
+		if (smb2_lease_equal(&sconn->client->connections->smb2.client.guid,
+				     key,
+				     &d->leases[i].client_guid,
+				     &d->leases[i].lease_key)) {
+			break;
+		}
+	}
+	if (i == d->num_leases) {
+		DEBUG(10, ("lease not found\n"));
+		return NT_STATUS_INVALID_PARAMETER;
+	}
+
+	l = &d->leases[i];
+
+	if (!l->breaking) {
+		DBG_WARNING("Attempt to break from %"PRIu32" to %"PRIu32" - "
+			    "but we're not in breaking state\n",
+			    l->current_state, new_lease_state);
+		return NT_STATUS_UNSUCCESSFUL;
+	}
+
+	/*
+	 * Can't upgrade anything: l->breaking_to_requested (and l->current_state)
+	 * must be a strict bitwise superset of new_lease_state
+	 */
+	if ((new_lease_state & l->breaking_to_requested) != new_lease_state) {
+		DBG_WARNING("Attempt to upgrade from %"PRIu32" to %"PRIu32" "
+			    "- expected %"PRIu32"\n",
+			    l->current_state, new_lease_state,
+			    l->breaking_to_requested);
+		return NT_STATUS_REQUEST_NOT_ACCEPTED;
+	}
+
+	if (l->current_state != new_lease_state) {
+		l->current_state = new_lease_state;
+		d->modified = true;
+	}
+
+	if ((new_lease_state & ~l->breaking_to_required) != 0) {
+		DBG_INFO("lease state %"PRIu32" not fully broken from "
+			 "%"PRIu32" to %"PRIu32"\n",
+			 new_lease_state,
+			 l->current_state,
+			 l->breaking_to_required);
+		l->breaking_to_requested = l->breaking_to_required;
+		if (l->current_state & (~SMB2_LEASE_READ)) {
+			/*
+			 * Here we break in steps, as windows does
+			 * see the breaking3 and v2_breaking3 tests.
+			 */
+			l->breaking_to_requested |= SMB2_LEASE_READ;
+		}
+		d->modified = true;
+		*_l = l;
+		return NT_STATUS_OPLOCK_BREAK_IN_PROGRESS;
+	}
+
+	DBG_DEBUG("breaking from %"PRIu32" to %"PRIu32" - "
+		  "expected %"PRIu32"\n",
+		  l->current_state,
+		  new_lease_state,
+		  l->breaking_to_requested);
+
+	l->breaking_to_requested = 0;
+	l->breaking_to_required = 0;
+	l->breaking = false;
+
+	d->modified = true;
+
+	return NT_STATUS_OK;
+}
+
 NTSTATUS downgrade_lease(struct smbXsrv_connection *xconn,
 			 uint32_t num_file_ids,
 			 const struct file_id *ids,
-- 
2.11.0


From d13124bd5c2e6233c65db55cf10813342175ec56 Mon Sep 17 00:00:00 2001
From: Volker Lendecke <vl at samba.org>
Date: Fri, 14 Sep 2018 13:30:43 +0200
Subject: [PATCH 2/7] smbd: Use find_share_mode_lease() in
 downgrade_share_lease

Simple simplification: In locking/ we did not have the direct
reference to find_share_mode_lock.

Signed-off-by: Volker Lendecke <vl at samba.org>
---
 source3/smbd/oplock.c | 16 +++++-----------
 1 file changed, 5 insertions(+), 11 deletions(-)

diff --git a/source3/smbd/oplock.c b/source3/smbd/oplock.c
index 57e4e699c4a..fdb87314d72 100644
--- a/source3/smbd/oplock.c
+++ b/source3/smbd/oplock.c
@@ -525,24 +525,18 @@ static NTSTATUS downgrade_share_lease(struct smbd_server_connection *sconn,
 {
 	struct share_mode_data *d = lck->data;
 	struct share_mode_lease *l;
-	uint32_t i;
+	int idx;
 
 	*_l = NULL;
 
-	for (i=0; i<d->num_leases; i++) {
-		if (smb2_lease_equal(&sconn->client->connections->smb2.client.guid,
-				     key,
-				     &d->leases[i].client_guid,
-				     &d->leases[i].lease_key)) {
-			break;
-		}
-	}
-	if (i == d->num_leases) {
+	idx = find_share_mode_lease(
+		d, &sconn->client->connections->smb2.client.guid, key);
+	if (idx == -1) {
 		DEBUG(10, ("lease not found\n"));
 		return NT_STATUS_INVALID_PARAMETER;
 	}
 
-	l = &d->leases[i];
+	l = &d->leases[idx];
 
 	if (!l->breaking) {
 		DBG_WARNING("Attempt to break from %"PRIu32" to %"PRIu32" - "
-- 
2.11.0


From d01fb5c3f6660efd52f5f61e00dce2e04c559756 Mon Sep 17 00:00:00 2001
From: Volker Lendecke <vl at samba.org>
Date: Fri, 14 Sep 2018 16:03:57 +0200
Subject: [PATCH 3/7] smbd: Slightly simplify downgrade_lease()

As much as I dislike }else{ and prefer early returns, I even more
dislike asking for the same condition in two different ways.

Signed-off-by: Volker Lendecke <vl at samba.org>
---
 source3/smbd/oplock.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/source3/smbd/oplock.c b/source3/smbd/oplock.c
index fdb87314d72..ded47b2f525 100644
--- a/source3/smbd/oplock.c
+++ b/source3/smbd/oplock.c
@@ -639,9 +639,6 @@ NTSTATUS downgrade_lease(struct smbXsrv_connection *xconn,
 		}
 
 		state->xconn = xconn;
-		if (l->current_state & (~SMB2_LEASE_READ)) {
-			state->break_flags = SMB2_NOTIFY_BREAK_LEASE_FLAG_ACK_REQUIRED;
-		}
 		state->lease_key = l->lease_key;
 		state->break_from = l->current_state;
 		state->break_to = l->breaking_to_requested;
@@ -649,7 +646,10 @@ NTSTATUS downgrade_lease(struct smbXsrv_connection *xconn,
 			state->new_epoch = l->epoch;
 		}
 
-		if (state->break_flags == 0) {
+		if (l->current_state & (~SMB2_LEASE_READ)) {
+			state->break_flags =
+				SMB2_NOTIFY_BREAK_LEASE_FLAG_ACK_REQUIRED;
+		} else {
 			/*
 			 * This is an async break without
 			 * SMB2_NOTIFY_BREAK_LEASE_FLAG_ACK_REQUIRED
-- 
2.11.0


From 5f7598fcae83ef543548023e65755626db4db450 Mon Sep 17 00:00:00 2001
From: Volker Lendecke <vl at samba.org>
Date: Fri, 14 Sep 2018 16:10:58 +0200
Subject: [PATCH 4/7] smbd: Simplify downgrade_lease

To me, the "additive" SMB2_LEASE_WRITE|SMB2_LEASE_HANDLE is easier to
read than the negated ~SMB2_LEASE_READ.

Signed-off-by: Volker Lendecke <vl at samba.org>
---
 source3/smbd/oplock.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/source3/smbd/oplock.c b/source3/smbd/oplock.c
index ded47b2f525..7ed223ddcfe 100644
--- a/source3/smbd/oplock.c
+++ b/source3/smbd/oplock.c
@@ -569,7 +569,7 @@ static NTSTATUS downgrade_share_lease(struct smbd_server_connection *sconn,
 			 l->current_state,
 			 l->breaking_to_required);
 		l->breaking_to_requested = l->breaking_to_required;
-		if (l->current_state & (~SMB2_LEASE_READ)) {
+		if (l->current_state & (SMB2_LEASE_WRITE|SMB2_LEASE_HANDLE)) {
 			/*
 			 * Here we break in steps, as windows does
 			 * see the breaking3 and v2_breaking3 tests.
@@ -646,7 +646,7 @@ NTSTATUS downgrade_lease(struct smbXsrv_connection *xconn,
 			state->new_epoch = l->epoch;
 		}
 
-		if (l->current_state & (~SMB2_LEASE_READ)) {
+		if (l->current_state & (SMB2_LEASE_WRITE|SMB2_LEASE_HANDLE)) {
 			state->break_flags =
 				SMB2_NOTIFY_BREAK_LEASE_FLAG_ACK_REQUIRED;
 		} else {
-- 
2.11.0


From 03677deff02b856480b849b52db3c375a874fbfe Mon Sep 17 00:00:00 2001
From: Volker Lendecke <vl at samba.org>
Date: Fri, 14 Sep 2018 16:19:19 +0200
Subject: [PATCH 5/7] smbd: Clarify downgrade_lease() a bit

"status" at this point is the return value of
downgrade_share_lease(). For any error but
NT_STATUS_OPLOCK_BREAK_IN_PROGRESS, which is handled before, we don't
need to call fsp_lease_update on all the fsps, because the lease
status in the database has not changed.

Signed-off-by: Volker Lendecke <vl at samba.org>
---
 source3/smbd/oplock.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/source3/smbd/oplock.c b/source3/smbd/oplock.c
index 7ed223ddcfe..a529ffa3662 100644
--- a/source3/smbd/oplock.c
+++ b/source3/smbd/oplock.c
@@ -669,6 +669,15 @@ NTSTATUS downgrade_lease(struct smbXsrv_connection *xconn,
 					  xconn->client->raw_ev_ctx,
 					  downgrade_lease_additional_trigger,
 					  state);
+
+		status = NT_STATUS_OK;
+	}
+
+	if (!NT_STATUS_IS_OK(status)) {
+		DBG_DEBUG("downgrade_share_lease failed: %s\n",
+			  nt_errstr(status));
+		TALLOC_FREE(lck);
+		return status;
 	}
 
 	{
-- 
2.11.0


From c5656fcea8cdc80c2039d9cca5c9b9aff38cf7c9 Mon Sep 17 00:00:00 2001
From: Volker Lendecke <vl at samba.org>
Date: Fri, 14 Sep 2018 16:41:25 +0200
Subject: [PATCH 6/7] smbd: Move downgrade_share_lease into downgrade_lease

The next step will simplify the logic of the code.

Signed-off-by: Volker Lendecke <vl at samba.org>
---
 source3/smbd/oplock.c | 109 ++++++++++++++++++++++----------------------------
 1 file changed, 47 insertions(+), 62 deletions(-)

diff --git a/source3/smbd/oplock.c b/source3/smbd/oplock.c
index a529ffa3662..d2dc4077bbe 100644
--- a/source3/smbd/oplock.c
+++ b/source3/smbd/oplock.c
@@ -517,17 +517,29 @@ static struct files_struct *downgrade_lease_fsps(struct files_struct *fsp,
 	return NULL;
 }
 
-static NTSTATUS downgrade_share_lease(struct smbd_server_connection *sconn,
-				      struct share_mode_lock *lck,
-				      const struct smb2_lease_key *key,
-				      uint32_t new_lease_state,
-				      struct share_mode_lease **_l)
+NTSTATUS downgrade_lease(struct smbXsrv_connection *xconn,
+			 uint32_t num_file_ids,
+			 const struct file_id *ids,
+			 const struct smb2_lease_key *key,
+			 uint32_t lease_state)
 {
-	struct share_mode_data *d = lck->data;
-	struct share_mode_lease *l;
+	struct smbd_server_connection *sconn = xconn->client->sconn;
+	struct share_mode_lock *lck;
+	struct share_mode_data *d = NULL;
+	struct share_mode_lease *l = NULL;
+	const struct file_id id = ids[0];
 	int idx;
+	uint32_t i;
+	NTSTATUS status;
 
-	*_l = NULL;
+	DEBUG(10, ("%s: Downgrading %s to %x\n", __func__,
+		   file_id_string_tos(&id), (unsigned)lease_state));
+
+	lck = get_existing_share_mode_lock(talloc_tos(), id);
+	if (lck == NULL) {
+		return NT_STATUS_OBJECT_NAME_NOT_FOUND;
+	}
+	d = lck->data;
 
 	idx = find_share_mode_lease(
 		d, &sconn->client->connections->smb2.client.guid, key);
@@ -535,13 +547,13 @@ static NTSTATUS downgrade_share_lease(struct smbd_server_connection *sconn,
 		DEBUG(10, ("lease not found\n"));
 		return NT_STATUS_INVALID_PARAMETER;
 	}
-
 	l = &d->leases[idx];
 
 	if (!l->breaking) {
 		DBG_WARNING("Attempt to break from %"PRIu32" to %"PRIu32" - "
 			    "but we're not in breaking state\n",
-			    l->current_state, new_lease_state);
+			    l->current_state, lease_state);
+		TALLOC_FREE(lck);
 		return NT_STATUS_UNSUCCESSFUL;
 	}
 
@@ -549,26 +561,34 @@ static NTSTATUS downgrade_share_lease(struct smbd_server_connection *sconn,
 	 * Can't upgrade anything: l->breaking_to_requested (and l->current_state)
 	 * must be a strict bitwise superset of new_lease_state
 	 */
-	if ((new_lease_state & l->breaking_to_requested) != new_lease_state) {
+	if ((lease_state & l->breaking_to_requested) != lease_state) {
 		DBG_WARNING("Attempt to upgrade from %"PRIu32" to %"PRIu32" "
 			    "- expected %"PRIu32"\n",
-			    l->current_state, new_lease_state,
+			    l->current_state, lease_state,
 			    l->breaking_to_requested);
+		TALLOC_FREE(lck);
 		return NT_STATUS_REQUEST_NOT_ACCEPTED;
 	}
 
-	if (l->current_state != new_lease_state) {
-		l->current_state = new_lease_state;
+	if (l->current_state != lease_state) {
+		l->current_state = lease_state;
 		d->modified = true;
 	}
 
-	if ((new_lease_state & ~l->breaking_to_required) != 0) {
+	status = NT_STATUS_OK;
+
+	d->modified = true;
+
+	if ((lease_state & ~l->breaking_to_required) != 0) {
+
 		DBG_INFO("lease state %"PRIu32" not fully broken from "
 			 "%"PRIu32" to %"PRIu32"\n",
-			 new_lease_state,
+			 lease_state,
 			 l->current_state,
 			 l->breaking_to_required);
+
 		l->breaking_to_requested = l->breaking_to_required;
+
 		if (l->current_state & (SMB2_LEASE_WRITE|SMB2_LEASE_HANDLE)) {
 			/*
 			 * Here we break in steps, as windows does
@@ -576,47 +596,9 @@ static NTSTATUS downgrade_share_lease(struct smbd_server_connection *sconn,
 			 */
 			l->breaking_to_requested |= SMB2_LEASE_READ;
 		}
-		d->modified = true;
-		*_l = l;
-		return NT_STATUS_OPLOCK_BREAK_IN_PROGRESS;
-	}
 
-	DBG_DEBUG("breaking from %"PRIu32" to %"PRIu32" - "
-		  "expected %"PRIu32"\n",
-		  l->current_state,
-		  new_lease_state,
-		  l->breaking_to_requested);
-
-	l->breaking_to_requested = 0;
-	l->breaking_to_required = 0;
-	l->breaking = false;
-
-	d->modified = true;
-
-	return NT_STATUS_OK;
-}
-
-NTSTATUS downgrade_lease(struct smbXsrv_connection *xconn,
-			 uint32_t num_file_ids,
-			 const struct file_id *ids,
-			 const struct smb2_lease_key *key,
-			 uint32_t lease_state)
-{
-	struct smbd_server_connection *sconn = xconn->client->sconn;
-	struct share_mode_lock *lck;
-	struct share_mode_lease *l = NULL;
-	const struct file_id id = ids[0];
-	uint32_t i;
-	NTSTATUS status;
-
-	DEBUG(10, ("%s: Downgrading %s to %x\n", __func__,
-		   file_id_string_tos(&id), (unsigned)lease_state));
-
-	lck = get_existing_share_mode_lock(talloc_tos(), id);
-	if (lck == NULL) {
-		return NT_STATUS_OBJECT_NAME_NOT_FOUND;
+		status = NT_STATUS_OPLOCK_BREAK_IN_PROGRESS;
 	}
-	status = downgrade_share_lease(sconn, lck, key, lease_state, &l);
 
 	DEBUG(10, ("%s: Downgrading %s to %x => %s\n", __func__,
 		   file_id_string_tos(&id), (unsigned)lease_state, nt_errstr(status)));
@@ -669,15 +651,18 @@ NTSTATUS downgrade_lease(struct smbXsrv_connection *xconn,
 					  xconn->client->raw_ev_ctx,
 					  downgrade_lease_additional_trigger,
 					  state);
+	} else {
+		DBG_DEBUG("breaking from %"PRIu32" to %"PRIu32" - "
+			  "expected %"PRIu32"\n",
+			  l->current_state,
+			  lease_state,
+			  l->breaking_to_requested);
 
-		status = NT_STATUS_OK;
-	}
+		l->breaking_to_requested = 0;
+		l->breaking_to_required = 0;
+		l->breaking = false;
 
-	if (!NT_STATUS_IS_OK(status)) {
-		DBG_DEBUG("downgrade_share_lease failed: %s\n",
-			  nt_errstr(status));
-		TALLOC_FREE(lck);
-		return status;
+		d->modified = true;
 	}
 
 	{
-- 
2.11.0


From be0f731772b8f1170426d1560237574046f2ef16 Mon Sep 17 00:00:00 2001
From: Volker Lendecke <vl at samba.org>
Date: Sun, 16 Sep 2018 11:25:14 +0200
Subject: [PATCH 7/7] smbd: Simplify downgrade_share_lease

Coalesce the NT_STATUS_OPLOCK_BREAK_IN_PROGRESS case into just one
if-condition

Signed-off-by: Volker Lendecke <vl at samba.org>
---
 source3/smbd/oplock.c | 15 ++++++---------
 1 file changed, 6 insertions(+), 9 deletions(-)

diff --git a/source3/smbd/oplock.c b/source3/smbd/oplock.c
index d2dc4077bbe..a7ac8464891 100644
--- a/source3/smbd/oplock.c
+++ b/source3/smbd/oplock.c
@@ -580,6 +580,7 @@ NTSTATUS downgrade_lease(struct smbXsrv_connection *xconn,
 	d->modified = true;
 
 	if ((lease_state & ~l->breaking_to_required) != 0) {
+		struct downgrade_lease_additional_state *state;
 
 		DBG_INFO("lease state %"PRIu32" not fully broken from "
 			 "%"PRIu32" to %"PRIu32"\n",
@@ -597,15 +598,6 @@ NTSTATUS downgrade_lease(struct smbXsrv_connection *xconn,
 			l->breaking_to_requested |= SMB2_LEASE_READ;
 		}
 
-		status = NT_STATUS_OPLOCK_BREAK_IN_PROGRESS;
-	}
-
-	DEBUG(10, ("%s: Downgrading %s to %x => %s\n", __func__,
-		   file_id_string_tos(&id), (unsigned)lease_state, nt_errstr(status)));
-
-	if (NT_STATUS_EQUAL(status, NT_STATUS_OPLOCK_BREAK_IN_PROGRESS)) {
-		struct downgrade_lease_additional_state *state;
-
 		state = talloc_zero(xconn,
 				    struct downgrade_lease_additional_state);
 		if (state == NULL) {
@@ -651,6 +643,8 @@ NTSTATUS downgrade_lease(struct smbXsrv_connection *xconn,
 					  xconn->client->raw_ev_ctx,
 					  downgrade_lease_additional_trigger,
 					  state);
+
+		status = NT_STATUS_OPLOCK_BREAK_IN_PROGRESS;
 	} else {
 		DBG_DEBUG("breaking from %"PRIu32" to %"PRIu32" - "
 			  "expected %"PRIu32"\n",
@@ -665,6 +659,9 @@ NTSTATUS downgrade_lease(struct smbXsrv_connection *xconn,
 		d->modified = true;
 	}
 
+	DEBUG(10, ("%s: Downgrading %s to %x => %s\n", __func__,
+		   file_id_string_tos(&id), (unsigned)lease_state, nt_errstr(status)));
+
 	{
 		struct downgrade_lease_fsps_state state = {
 			.id = id, .lck = lck, .key = key,
-- 
2.11.0



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