diff options
| author | Jeff <jlayton@redhat.com> | 2007-06-25 22:16:35 +0000 |
|---|---|---|
| committer | Steve French <sfrench@us.ibm.com> | 2007-06-25 22:16:35 +0000 |
| commit | 5d9c720678f9b4ed3db86466223dc61cbf78361d (patch) | |
| tree | 8bf8e4417a5c8a33b64227156476f053ea5829f0 /fs/cifs | |
| parent | ffdd6e4d1685779a413e4a8d753b1862259ed42a (diff) | |
| download | lwn-5d9c720678f9b4ed3db86466223dc61cbf78361d.tar.gz lwn-5d9c720678f9b4ed3db86466223dc61cbf78361d.zip | |
[CIFS] Do not allow signals in cifs_demultiplex_thread
Switch from send_sig to force_sig and do not allow signal for this
background thread (the signal is needed to wakeup the thread when
blocked in the network stack).
Signed-off-by: Jeff Layton <jlayton@readhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
Diffstat (limited to 'fs/cifs')
| -rw-r--r-- | fs/cifs/connect.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index 4a2af78083fb..cf606910cb68 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -348,7 +348,6 @@ cifs_demultiplex_thread(struct TCP_Server_Info *server) int isMultiRsp; int reconnect; - allow_signal(SIGKILL); current->flags |= PF_MEMALLOC; server->tsk = current; /* save process info to wake at shutdown */ cFYI(1, ("Demultiplex PID: %d", current->pid)); @@ -2089,7 +2088,7 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, always wake up processes blocked in tcp in recv_mesg then we could remove the send_sig call */ - send_sig(SIGKILL,srvTcp->tsk,1); + force_sig(SIGKILL,srvTcp->tsk); tsk = srvTcp->tsk; if(tsk) kthread_stop(tsk); @@ -2106,9 +2105,11 @@ 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) && (pSesInfo->server->tsk)) { + (pSesInfo->server) && + (pSesInfo->server->tsk)) { struct task_struct *tsk; - send_sig(SIGKILL,pSesInfo->server->tsk,1); + force_sig(SIGKILL, + pSesInfo->server->tsk); tsk = pSesInfo->server->tsk; if (tsk) kthread_stop(tsk); @@ -3364,9 +3365,9 @@ cifs_umount(struct super_block *sb, struct cifs_sb_info *cifs_sb) FreeXid(xid); return 0; } else if (rc == -ESHUTDOWN) { - cFYI(1,("Waking up socket by sending it signal")); + cFYI(1,("Waking up socket by sending signal")); if (cifsd_task) { - send_sig(SIGKILL,cifsd_task,1); + force_sig(SIGKILL,cifsd_task); kthread_stop(cifsd_task); } rc = 0; |