diff options
Diffstat (limited to 'arch/s390/mm/cmm.c')
| -rw-r--r-- | arch/s390/mm/cmm.c | 42 |
1 files changed, 26 insertions, 16 deletions
diff --git a/arch/s390/mm/cmm.c b/arch/s390/mm/cmm.c index eb6a2ef5f82..79ddd580d60 100644 --- a/arch/s390/mm/cmm.c +++ b/arch/s390/mm/cmm.c @@ -1,7 +1,7 @@ /* * Collaborative memory management interface. * - * Copyright IBM Corp 2003,2010 + * Copyright IBM Corp 2003, 2010 * Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>, * */ @@ -23,7 +23,10 @@ #include <asm/pgalloc.h> #include <asm/diag.h> -static char *sender = "VMRMSVM"; +#ifdef CONFIG_CMM_IUCV +static char *cmm_default_sender = "VMRMSVM"; +#endif +static char *sender; module_param(sender, charp, 0400); MODULE_PARM_DESC(sender, "Guest name that may send SMSG messages (default VMRMSVM)"); @@ -88,7 +91,7 @@ static long cmm_alloc_pages(long nr, long *counter, } else free_page((unsigned long) npa); } - diag10(addr); + diag10_range(addr >> PAGE_SHIFT, 1); pa->pages[pa->index++] = addr; (*counter)++; spin_unlock(&cmm_lock); @@ -250,12 +253,12 @@ static int cmm_skip_blanks(char *cp, char **endp) static struct ctl_table cmm_table[]; -static int cmm_pages_handler(ctl_table *ctl, int write, void __user *buffer, - size_t *lenp, loff_t *ppos) +static int cmm_pages_handler(struct ctl_table *ctl, int write, + void __user *buffer, size_t *lenp, loff_t *ppos) { char buf[16], *p; + unsigned int len; long nr; - int len; if (!*lenp || (*ppos && !write)) { *lenp = 0; @@ -290,12 +293,12 @@ static int cmm_pages_handler(ctl_table *ctl, int write, void __user *buffer, return 0; } -static int cmm_timeout_handler(ctl_table *ctl, int write, void __user *buffer, - size_t *lenp, loff_t *ppos) +static int cmm_timeout_handler(struct ctl_table *ctl, int write, + void __user *buffer, size_t *lenp, loff_t *ppos) { char buf[64], *p; long nr, seconds; - int len; + unsigned int len; if (!*lenp || (*ppos && !write)) { *lenp = 0; @@ -427,7 +430,7 @@ static struct notifier_block cmm_power_notifier = { .notifier_call = cmm_power_event, }; -static int cmm_init(void) +static int __init cmm_init(void) { int rc = -ENOMEM; @@ -435,6 +438,15 @@ static int cmm_init(void) if (!cmm_sysctl_header) goto out_sysctl; #ifdef CONFIG_CMM_IUCV + /* convert sender to uppercase characters */ + if (sender) { + int len = strlen(sender); + while (len--) + sender[len] = toupper(sender[len]); + } else { + sender = cmm_default_sender; + } + rc = smsg_register_callback(SMSG_PREFIX, cmm_smsg_target); if (rc < 0) goto out_smsg; @@ -446,12 +458,10 @@ static int cmm_init(void) if (rc) goto out_pm; cmm_thread_ptr = kthread_run(cmm_thread, NULL, "cmmthread"); - rc = IS_ERR(cmm_thread_ptr) ? PTR_ERR(cmm_thread_ptr) : 0; - if (rc) - goto out_kthread; - return 0; + if (!IS_ERR(cmm_thread_ptr)) + return 0; -out_kthread: + rc = PTR_ERR(cmm_thread_ptr); unregister_pm_notifier(&cmm_power_notifier); out_pm: unregister_oom_notifier(&cmm_oom_nb); @@ -467,7 +477,7 @@ out_sysctl: } module_init(cmm_init); -static void cmm_exit(void) +static void __exit cmm_exit(void) { unregister_sysctl_table(cmm_sysctl_header); #ifdef CONFIG_CMM_IUCV |