diff options
Diffstat (limited to 'source3/smbd')
| -rw-r--r-- | source3/smbd/oplock.c | 45 |
1 files changed, 12 insertions, 33 deletions
diff --git a/source3/smbd/oplock.c b/source3/smbd/oplock.c index ffea57bd1d..b0ab1b58cb 100644 --- a/source3/smbd/oplock.c +++ b/source3/smbd/oplock.c @@ -409,9 +409,10 @@ static void send_break_message_smb1(files_struct *fsp, int level) } } -static void break_level2_to_none_async(files_struct *fsp) +static void break_level2_to_none_async(struct server_id src, files_struct *fsp) { struct smbd_server_connection *sconn = fsp->conn->sconn; + struct server_id self = messaging_server_id(sconn->msg_ctx); if (fsp->oplock_type == NO_OPLOCK) { /* We already got a "break to none" message and we've handled @@ -428,6 +429,12 @@ static void break_level2_to_none_async(files_struct *fsp) "to none message for %s, file %s\n", fsp_fnum_dbg(fsp), fsp_str_dbg(fsp))); + /* Need to wait before sending a break + message if we sent ourselves this message. */ + if (serverid_equal(&self, &src)) { + wait_before_sending_break(); + } + /* Now send a break to none message to our client. */ if (sconn->using_smb2) { send_break_message_smb2(fsp, OPLOCKLEVEL_NONE); @@ -487,7 +494,7 @@ static void process_oplock_async_level2_break_message(struct messaging_context * return; } - break_level2_to_none_async(fsp); + break_level2_to_none_async(src, fsp); } /******************************************************************* @@ -713,7 +720,6 @@ static void do_break_to_none(struct tevent_context *ctx, { struct break_to_none_state *state = talloc_get_type_abort( private_data, struct break_to_none_state); - struct server_id self = messaging_server_id(state->sconn->msg_ctx); int i; struct share_mode_lock *lck; @@ -766,36 +772,9 @@ static void do_break_to_none(struct tevent_context *ctx, share_mode_entry_to_message(msg, share_entry); - /* - * Deal with a race condition when breaking level2 - * oplocks. Don't send all the messages and release - * the lock, this allows someone else to come in and - * get a level2 lock before any of the messages are - * processed, and thus miss getting a break message. - * Ensure at least one entry (the one we're breaking) - * is processed immediately under the lock and becomes - * set as NO_OPLOCK to stop any waiter getting a level2. - * Bugid #5980. - */ - - if (serverid_equal(&self, &share_entry->pid)) { - struct files_struct *cur_fsp = - initial_break_processing(state->sconn, - share_entry->id, - share_entry->share_file_id); - if (cur_fsp != NULL) { - wait_before_sending_break(); - break_level2_to_none_async(cur_fsp); - } else { - DEBUG(3, ("release_level_2_oplocks_on_change: " - "Did not find fsp, ignoring\n")); - } - } else { - messaging_send_buf(state->sconn->msg_ctx, - share_entry->pid, - MSG_SMB_ASYNC_LEVEL2_BREAK, - (uint8 *)msg, sizeof(msg)); - } + messaging_send_buf(state->sconn->msg_ctx, share_entry->pid, + MSG_SMB_ASYNC_LEVEL2_BREAK, + (uint8 *)msg, sizeof(msg)); } /* We let the message receivers handle removing the oplock state |