diff options
Diffstat (limited to 'drivers/s390/cio/blacklist.c')
| -rw-r--r-- | drivers/s390/cio/blacklist.c | 39 |
1 files changed, 30 insertions, 9 deletions
diff --git a/drivers/s390/cio/blacklist.c b/drivers/s390/cio/blacklist.c index 76058a5166e..b3f791b2c1f 100644 --- a/drivers/s390/cio/blacklist.c +++ b/drivers/s390/cio/blacklist.c @@ -1,9 +1,7 @@ /* - * drivers/s390/cio/blacklist.c * S/390 common I/O routines -- blacklisting of specific devices * - * Copyright (C) 1999-2002 IBM Deutschland Entwicklung GmbH, - * IBM Corporation + * Copyright IBM Corp. 1999, 2013 * Author(s): Ingo Adlung (adlung@de.ibm.com) * Cornelia Huck (cornelia.huck@de.ibm.com) * Arnd Bergmann (arndb@de.ibm.com) @@ -19,8 +17,9 @@ #include <linux/ctype.h> #include <linux/device.h> -#include <asm/cio.h> #include <asm/uaccess.h> +#include <asm/cio.h> +#include <asm/ipl.h> #include "blacklist.h" #include "cio.h" @@ -174,6 +173,29 @@ static int blacklist_parse_parameters(char *str, range_action action, to_cssid = __MAX_CSSID; to_ssid = __MAX_SSID; to = __MAX_SUBCHANNEL; + } else if (strcmp(parm, "ipldev") == 0) { + if (ipl_info.type == IPL_TYPE_CCW) { + from_cssid = 0; + from_ssid = ipl_info.data.ccw.dev_id.ssid; + from = ipl_info.data.ccw.dev_id.devno; + } else if (ipl_info.type == IPL_TYPE_FCP || + ipl_info.type == IPL_TYPE_FCP_DUMP) { + from_cssid = 0; + from_ssid = ipl_info.data.fcp.dev_id.ssid; + from = ipl_info.data.fcp.dev_id.devno; + } else { + continue; + } + to_cssid = from_cssid; + to_ssid = from_ssid; + to = from; + } else if (strcmp(parm, "condev") == 0) { + if (console_devno == -1) + continue; + + from_cssid = to_cssid = 0; + from_ssid = to_ssid = 0; + from = to = console_devno; } else { rc = parse_busid(strsep(&parm, "-"), &from_cssid, &from_ssid, &from, msgtrigger); @@ -238,16 +260,16 @@ static int blacklist_parse_proc_parameters(char *buf) parm = strsep(&buf, " "); - if (strcmp("free", parm) == 0) + if (strcmp("free", parm) == 0) { rc = blacklist_parse_parameters(buf, free, 0); - else if (strcmp("add", parm) == 0) + css_schedule_eval_all_unreg(0); + } else if (strcmp("add", parm) == 0) rc = blacklist_parse_parameters(buf, add, 0); else if (strcmp("purge", parm) == 0) return ccw_purge_blacklisted(); else return -EINVAL; - css_schedule_reprobe(); return rc; } @@ -335,10 +357,9 @@ cio_ignore_write(struct file *file, const char __user *user_buf, return -EINVAL; if (user_len > 65536) user_len = 65536; - buf = vmalloc (user_len + 1); /* maybe better use the stack? */ + buf = vzalloc(user_len + 1); /* maybe better use the stack? */ if (buf == NULL) return -ENOMEM; - memset(buf, 0, user_len + 1); if (strncpy_from_user (buf, user_buf, user_len) < 0) { rc = -EFAULT; |