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[CIFS] Switch cifsd to kthread_run from kernel_thread
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cifsd was the only cifs thread that had not been switched to the newer
kthread interface

Signed-off-by: Igor Mammedov <niallain at gmail.com>
Signed-off-by: Wilhelm Meier <wilhelm.meier@fh-kl.de>
Signed-off-by: Steve French <sfrench@us.ibm.com>
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Igor Mammedov authored and Steve French committed Apr 3, 2007
1 parent c33f8d3 commit aaf737a
Showing 1 changed file with 16 additions and 16 deletions.
32 changes: 16 additions & 16 deletions fs/cifs/connect.c
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Original file line number Diff line number Diff line change
Expand Up @@ -30,6 +30,7 @@
#include <linux/mempool.h>
#include <linux/delay.h>
#include <linux/completion.h>
#include <linux/kthread.h>
#include <linux/pagevec.h>
#include <linux/freezer.h>
#include <asm/uaccess.h>
Expand Down Expand Up @@ -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);
Expand Down Expand Up @@ -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) {
Expand All @@ -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);
Expand Down Expand Up @@ -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 */
Expand All @@ -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) {
Expand Down Expand Up @@ -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"));
Expand Down Expand Up @@ -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;
Expand Down Expand Up @@ -757,7 +757,6 @@ cifs_demultiplex_thread(struct TCP_Server_Info *server)
GFP_KERNEL);
}

complete_and_exit(&cifsd_complete, 0);
return 0;
}

Expand Down Expand Up @@ -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);
Expand Down Expand Up @@ -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 */
Expand All @@ -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"));
Expand Down Expand Up @@ -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
Expand Down

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