From aaf737adb6937339494d5a7111f0433cd9676db8 Mon Sep 17 00:00:00 2001 From: Igor Mammedov Date: Tue, 3 Apr 2007 19:16:43 +0000 Subject: [PATCH] [CIFS] Switch cifsd to kthread_run from kernel_thread cifsd was the only cifs thread that had not been switched to the newer kthread interface Signed-off-by: Igor Mammedov Signed-off-by: Wilhelm Meier Signed-off-by: Steve French --- fs/cifs/connect.c | 32 ++++++++++++++++---------------- 1 file changed, 16 insertions(+), 16 deletions(-) diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index 20ba7dcc995..9e41f8ea5fb 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -30,6 +30,7 @@ #include #include #include +#include #include #include #include @@ -120,7 +121,7 @@ cifs_reconnect(struct TCP_Server_Info *server) struct mid_q_entry * mid_entry; spin_lock(&GlobalMid_Lock); - if(server->tcpStatus == CifsExiting) { + if( kthread_should_stop() ) { /* the demux thread will exit normally next time through the loop */ spin_unlock(&GlobalMid_Lock); @@ -182,7 +183,7 @@ cifs_reconnect(struct TCP_Server_Info *server) spin_unlock(&GlobalMid_Lock); up(&server->tcpSem); - while ((server->tcpStatus != CifsExiting) && (server->tcpStatus != CifsGood)) + while ( (!kthread_should_stop()) && (server->tcpStatus != CifsGood)) { try_to_freeze(); if(server->protocolType == IPV6) { @@ -199,7 +200,7 @@ cifs_reconnect(struct TCP_Server_Info *server) } else { atomic_inc(&tcpSesReconnectCount); spin_lock(&GlobalMid_Lock); - if(server->tcpStatus != CifsExiting) + if( !kthread_should_stop() ) server->tcpStatus = CifsGood; server->sequence_number = 0; spin_unlock(&GlobalMid_Lock); @@ -345,7 +346,6 @@ cifs_demultiplex_thread(struct TCP_Server_Info *server) int isMultiRsp; int reconnect; - daemonize("cifsd"); allow_signal(SIGKILL); current->flags |= PF_MEMALLOC; server->tsk = current; /* save process info to wake at shutdown */ @@ -361,7 +361,7 @@ cifs_demultiplex_thread(struct TCP_Server_Info *server) GFP_KERNEL); } - while (server->tcpStatus != CifsExiting) { + while (!kthread_should_stop()) { if (try_to_freeze()) continue; if (bigbuf == NULL) { @@ -400,7 +400,7 @@ cifs_demultiplex_thread(struct TCP_Server_Info *server) kernel_recvmsg(csocket, &smb_msg, &iov, 1, 4, 0 /* BB see socket.h flags */); - if (server->tcpStatus == CifsExiting) { + if ( kthread_should_stop() ) { break; } else if (server->tcpStatus == CifsNeedReconnect) { cFYI(1, ("Reconnect after server stopped responding")); @@ -524,7 +524,7 @@ cifs_demultiplex_thread(struct TCP_Server_Info *server) total_read += length) { length = kernel_recvmsg(csocket, &smb_msg, &iov, 1, pdu_length - total_read, 0); - if((server->tcpStatus == CifsExiting) || + if( kthread_should_stop() || (length == -EINTR)) { /* then will exit */ reconnect = 2; @@ -757,7 +757,6 @@ multi_t2_fnd: GFP_KERNEL); } - complete_and_exit(&cifsd_complete, 0); return 0; } @@ -1850,10 +1849,11 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, so no need to spinlock this init of tcpStatus */ srvTcp->tcpStatus = CifsNew; init_MUTEX(&srvTcp->tcpSem); - rc = (int)kernel_thread((void *)(void *)cifs_demultiplex_thread, srvTcp, - CLONE_FS | CLONE_FILES | CLONE_VM); - if(rc < 0) { - rc = -ENOMEM; + srvTcp->tsk = kthread_run((void *)(void *)cifs_demultiplex_thread, srvTcp, "cifsd"); + if( IS_ERR(srvTcp->tsk) ) { + rc = PTR_ERR(srvTcp->tsk); + cERROR(1,("error %d create cifsd thread", rc)); + srvTcp->tsk = NULL; sock_release(csocket); kfree(volume_info.UNC); kfree(volume_info.password); @@ -2050,7 +2050,7 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, spin_unlock(&GlobalMid_Lock); if(srvTcp->tsk) { send_sig(SIGKILL,srvTcp->tsk,1); - wait_for_completion(&cifsd_complete); + kthread_stop(srvTcp->tsk); } } /* If find_unc succeeded then rc == 0 so we can not end */ @@ -2064,9 +2064,9 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, temp_rc = CIFSSMBLogoff(xid, pSesInfo); /* if the socketUseCount is now zero */ if((temp_rc == -ESHUTDOWN) && - (pSesInfo->server->tsk)) { + (pSesInfo->server) && (pSesInfo->server->tsk)) { send_sig(SIGKILL,pSesInfo->server->tsk,1); - wait_for_completion(&cifsd_complete); + kthread_stop(pSesInfo->server->tsk); } } else cFYI(1, ("No session or bad tcon")); @@ -3316,7 +3316,7 @@ cifs_umount(struct super_block *sb, struct cifs_sb_info *cifs_sb) cFYI(1,("Waking up socket by sending it signal")); if(cifsd_task) { send_sig(SIGKILL,cifsd_task,1); - wait_for_completion(&cifsd_complete); + kthread_stop(cifsd_task); } rc = 0; } /* else - we have an smb session