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s390 updates for 5.12-rc3 

- fix various user space visible copy_to_user() instances which return the
   number of bytes left to copy instead of -EFAULT
 
 - make TMPFS_INODE64 available again for s390 and alpha, now that both
   architectures have been switched to 64-bit ino_t
   see commit 96c0a6a72d ("s390,alpha: switch to 64-bit ino_t")
 
 - make sure to release a shared hypervisor resource within the zcore device
   driver also on restart and power down; also remove unneeded surrounding
   debugfs_create return value checks
 
 - for the new hardware counter set device driver rename the uapi header file to
   be a bit more generic; also remove 60 second read limit which is not really
   necessary and without the limit the interface can be easier tested
 
 - some small cleanups, the largest being to convert all long long in our time
   and idle code to longs
 
 - update defconfigs
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Merge tag 's390-5.12-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull s390 fixes from Heiko Carstens:

 - fix various user space visible copy_to_user() instances which return
   the number of bytes left to copy instead of -EFAULT

 - make TMPFS_INODE64 available again for s390 and alpha, now that both
   architectures have been switched to 64-bit ino_t (see commit
   96c0a6a72d18: "s390,alpha: switch to 64-bit ino_t")

 - make sure to release a shared hypervisor resource within the zcore
   device driver also on restart and power down; also remove unneeded
   surrounding debugfs_create return value checks

 - for the new hardware counter set device driver rename the uapi header
   file to be a bit more generic; also remove 60 second read limit which
   is not really necessary and without the limit the interface can be
   easier tested

 - some small cleanups, the largest being to convert all long long in
   our time and idle code to longs

 - update defconfigs

* tag 's390-5.12-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390: remove IBM_PARTITION and CONFIGFS_FS from zfcpdump defconfig
  s390: update defconfigs
  s390,alpha: make TMPFS_INODE64 available again
  s390/cio: return -EFAULT if copy_to_user() fails
  s390/tty3270: avoid comma separated statements
  s390/cpumf: remove unneeded semicolon
  s390/crypto: return -EFAULT if copy_to_user() fails
  s390/cio: return -EFAULT if copy_to_user() fails
  s390/cpumf: rename header file to hwctrset.h
  s390/zcore: release dump save area on restart or power down
  s390/zcore: no need to check return value of debugfs_create functions
  s390/cpumf: remove 60 seconds read limit
  s390/topology: remove always false if check
  s390/time,idle: get rid of unsigned long long
rM2-mainline
Linus Torvalds 2021-03-10 13:15:16 -08:00
parent 9b1ea29bc0 78c7cccaab
commit a74e6a014c
18 changed files with 91 additions and 115 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
arch/s390/configs/debug_defconfig
View File

@ -275,9 +275,9 @@ CONFIG_IP_VS_DH=m
CONFIG_IP_VS_SH=m
CONFIG_IP_VS_SED=m
CONFIG_IP_VS_NQ=m
CONFIG_IP_VS_TWOS=m
CONFIG_IP_VS_FTP=m
CONFIG_IP_VS_PE_SIP=m
CONFIG_NF_TABLES_IPV4=y
CONFIG_NFT_FIB_IPV4=m
CONFIG_NF_TABLES_ARP=y
CONFIG_IP_NF_IPTABLES=m
@ -298,7 +298,6 @@ CONFIG_IP_NF_SECURITY=m
CONFIG_IP_NF_ARPTABLES=m
CONFIG_IP_NF_ARPFILTER=m
CONFIG_IP_NF_ARP_MANGLE=m
CONFIG_NF_TABLES_IPV6=y
CONFIG_NFT_FIB_IPV6=m
CONFIG_IP6_NF_IPTABLES=m
CONFIG_IP6_NF_MATCH_AH=m
@ -481,7 +480,6 @@ CONFIG_NLMON=m
# CONFIG_NET_VENDOR_AQUANTIA is not set
# CONFIG_NET_VENDOR_ARC is not set
# CONFIG_NET_VENDOR_ATHEROS is not set
# CONFIG_NET_VENDOR_AURORA is not set
# CONFIG_NET_VENDOR_BROADCOM is not set
# CONFIG_NET_VENDOR_BROCADE is not set
# CONFIG_NET_VENDOR_CADENCE is not set
@ -581,7 +579,6 @@ CONFIG_VIRTIO_BALLOON=m
CONFIG_VIRTIO_INPUT=y
CONFIG_VHOST_NET=m
CONFIG_VHOST_VSOCK=m
# CONFIG_SURFACE_PLATFORMS is not set
CONFIG_S390_CCW_IOMMU=y
CONFIG_S390_AP_IOMMU=y
CONFIG_EXT4_FS=y
@ -635,6 +632,7 @@ CONFIG_NTFS_RW=y
CONFIG_PROC_KCORE=y
CONFIG_TMPFS=y
CONFIG_TMPFS_POSIX_ACL=y
CONFIG_TMPFS_INODE64=y
CONFIG_HUGETLBFS=y
CONFIG_CONFIGFS_FS=m
CONFIG_ECRYPT_FS=m
@ -714,12 +712,8 @@ CONFIG_CRYPTO_VMAC=m
CONFIG_CRYPTO_CRC32=m
CONFIG_CRYPTO_BLAKE2S=m
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD128=m
CONFIG_CRYPTO_RMD160=m
CONFIG_CRYPTO_RMD256=m
CONFIG_CRYPTO_RMD320=m
CONFIG_CRYPTO_SHA3=m
CONFIG_CRYPTO_TGR192=m
CONFIG_CRYPTO_WP512=m
CONFIG_CRYPTO_AES_TI=m
CONFIG_CRYPTO_ANUBIS=m
@ -731,7 +725,6 @@ CONFIG_CRYPTO_CAST6=m
CONFIG_CRYPTO_DES=m
CONFIG_CRYPTO_FCRYPT=m
CONFIG_CRYPTO_KHAZAD=m
CONFIG_CRYPTO_SALSA20=m
CONFIG_CRYPTO_SEED=m
CONFIG_CRYPTO_SERPENT=m
CONFIG_CRYPTO_SM4=m
@ -796,12 +789,9 @@ CONFIG_DEBUG_OBJECTS_RCU_HEAD=y
CONFIG_DEBUG_OBJECTS_PERCPU_COUNTER=y
CONFIG_SLUB_DEBUG_ON=y
CONFIG_SLUB_STATS=y
CONFIG_DEBUG_KMEMLEAK=y
CONFIG_DEBUG_KMEMLEAK_DEFAULT_OFF=y
CONFIG_DEBUG_STACK_USAGE=y
CONFIG_DEBUG_VM=y
CONFIG_DEBUG_VM_VMACACHE=y
CONFIG_DEBUG_VM_RB=y
CONFIG_DEBUG_VM_PGFLAGS=y
CONFIG_DEBUG_MEMORY_INIT=y
CONFIG_MEMORY_NOTIFIER_ERROR_INJECT=m
@ -838,6 +828,7 @@ CONFIG_BPF_KPROBE_OVERRIDE=y
CONFIG_HIST_TRIGGERS=y
CONFIG_FTRACE_STARTUP_TEST=y
# CONFIG_EVENT_TRACE_STARTUP_TEST is not set
CONFIG_DEBUG_ENTRY=y
CONFIG_NOTIFIER_ERROR_INJECTION=m
CONFIG_NETDEV_NOTIFIER_ERROR_INJECT=m
CONFIG_FAULT_INJECTION=y
@ -861,4 +852,3 @@ CONFIG_PERCPU_TEST=m
CONFIG_ATOMIC64_SELFTEST=y
CONFIG_TEST_BITOPS=m
CONFIG_TEST_BPF=m
CONFIG_DEBUG_ENTRY=y

11
arch/s390/configs/defconfig
View File

@ -266,9 +266,9 @@ CONFIG_IP_VS_DH=m
CONFIG_IP_VS_SH=m
CONFIG_IP_VS_SED=m
CONFIG_IP_VS_NQ=m
CONFIG_IP_VS_TWOS=m
CONFIG_IP_VS_FTP=m
CONFIG_IP_VS_PE_SIP=m
CONFIG_NF_TABLES_IPV4=y
CONFIG_NFT_FIB_IPV4=m
CONFIG_NF_TABLES_ARP=y
CONFIG_IP_NF_IPTABLES=m
@ -289,7 +289,6 @@ CONFIG_IP_NF_SECURITY=m
CONFIG_IP_NF_ARPTABLES=m
CONFIG_IP_NF_ARPFILTER=m
CONFIG_IP_NF_ARP_MANGLE=m
CONFIG_NF_TABLES_IPV6=y
CONFIG_NFT_FIB_IPV6=m
CONFIG_IP6_NF_IPTABLES=m
CONFIG_IP6_NF_MATCH_AH=m
@ -473,7 +472,6 @@ CONFIG_NLMON=m
# CONFIG_NET_VENDOR_AQUANTIA is not set
# CONFIG_NET_VENDOR_ARC is not set
# CONFIG_NET_VENDOR_ATHEROS is not set
# CONFIG_NET_VENDOR_AURORA is not set
# CONFIG_NET_VENDOR_BROADCOM is not set
# CONFIG_NET_VENDOR_BROCADE is not set
# CONFIG_NET_VENDOR_CADENCE is not set
@ -573,7 +571,6 @@ CONFIG_VIRTIO_BALLOON=m
CONFIG_VIRTIO_INPUT=y
CONFIG_VHOST_NET=m
CONFIG_VHOST_VSOCK=m
# CONFIG_SURFACE_PLATFORMS is not set
CONFIG_S390_CCW_IOMMU=y
CONFIG_S390_AP_IOMMU=y
CONFIG_EXT4_FS=y
@ -623,6 +620,7 @@ CONFIG_NTFS_RW=y
CONFIG_PROC_KCORE=y
CONFIG_TMPFS=y
CONFIG_TMPFS_POSIX_ACL=y
CONFIG_TMPFS_INODE64=y
CONFIG_HUGETLBFS=y
CONFIG_CONFIGFS_FS=m
CONFIG_ECRYPT_FS=m
@ -703,12 +701,8 @@ CONFIG_CRYPTO_VMAC=m
CONFIG_CRYPTO_CRC32=m
CONFIG_CRYPTO_BLAKE2S=m
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD128=m
CONFIG_CRYPTO_RMD160=m
CONFIG_CRYPTO_RMD256=m
CONFIG_CRYPTO_RMD320=m
CONFIG_CRYPTO_SHA3=m
CONFIG_CRYPTO_TGR192=m
CONFIG_CRYPTO_WP512=m
CONFIG_CRYPTO_AES_TI=m
CONFIG_CRYPTO_ANUBIS=m
@ -720,7 +714,6 @@ CONFIG_CRYPTO_CAST6=m
CONFIG_CRYPTO_DES=m
CONFIG_CRYPTO_FCRYPT=m
CONFIG_CRYPTO_KHAZAD=m
CONFIG_CRYPTO_SALSA20=m
CONFIG_CRYPTO_SEED=m
CONFIG_CRYPTO_SERPENT=m
CONFIG_CRYPTO_SM4=m

3
arch/s390/configs/zfcpdump_defconfig
View File

@ -26,7 +26,6 @@ CONFIG_CRASH_DUMP=y
# CONFIG_SECCOMP is not set
# CONFIG_GCC_PLUGINS is not set
CONFIG_PARTITION_ADVANCED=y
CONFIG_IBM_PARTITION=y
# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
# CONFIG_COMPACTION is not set
# CONFIG_MIGRATION is not set
@ -61,11 +60,9 @@ CONFIG_RAW_DRIVER=y
# CONFIG_HID is not set
# CONFIG_VIRTIO_MENU is not set
# CONFIG_VHOST_MENU is not set
# CONFIG_SURFACE_PLATFORMS is not set
# CONFIG_IOMMU_SUPPORT is not set
# CONFIG_DNOTIFY is not set
# CONFIG_INOTIFY_USER is not set
CONFIG_CONFIGFS_FS=y
# CONFIG_MISC_FILESYSTEMS is not set
# CONFIG_NETWORK_FILESYSTEMS is not set
CONFIG_LSM="yama,loadpin,safesetid,integrity"

12
arch/s390/include/asm/idle.h
View File

@ -14,12 +14,12 @@
struct s390_idle_data {
seqcount_t seqcount;
unsigned long long idle_count;
unsigned long long idle_time;
unsigned long long clock_idle_enter;
unsigned long long clock_idle_exit;
unsigned long long timer_idle_enter;
unsigned long long timer_idle_exit;
unsigned long idle_count;
unsigned long idle_time;
unsigned long clock_idle_enter;
unsigned long clock_idle_exit;
unsigned long timer_idle_enter;
unsigned long timer_idle_exit;
unsigned long mt_cycles_enter[8];
};

36
arch/s390/include/asm/timex.h
View File

@ -98,10 +98,10 @@ extern unsigned char ptff_function_mask[16];
/* Query TOD offset result */
struct ptff_qto {
unsigned long long physical_clock;
unsigned long long tod_offset;
unsigned long long logical_tod_offset;
unsigned long long tod_epoch_difference;
unsigned long physical_clock;
unsigned long tod_offset;
unsigned long logical_tod_offset;
unsigned long tod_epoch_difference;
} __packed;
static inline int ptff_query(unsigned int nr)
@ -151,9 +151,9 @@ struct ptff_qui {
rc; \
})
static inline unsigned long long local_tick_disable(void)
static inline unsigned long local_tick_disable(void)
{
unsigned long long old;
unsigned long old;
old = S390_lowcore.clock_comparator;
S390_lowcore.clock_comparator = clock_comparator_max;
@ -161,7 +161,7 @@ static inline unsigned long long local_tick_disable(void)
return old;
}
static inline void local_tick_enable(unsigned long long comp)
static inline void local_tick_enable(unsigned long comp)
{
S390_lowcore.clock_comparator = comp;
set_clock_comparator(S390_lowcore.clock_comparator);
@ -169,9 +169,9 @@ static inline void local_tick_enable(unsigned long long comp)
#define CLOCK_TICK_RATE 1193180 /* Underlying HZ */
typedef unsigned long long cycles_t;
typedef unsigned long cycles_t;
static inline unsigned long long get_tod_clock(void)
static inline unsigned long get_tod_clock(void)
{
union tod_clock clk;
@ -179,10 +179,10 @@ static inline unsigned long long get_tod_clock(void)
return clk.tod;
}
static inline unsigned long long get_tod_clock_fast(void)
static inline unsigned long get_tod_clock_fast(void)
{
#ifdef CONFIG_HAVE_MARCH_Z9_109_FEATURES
unsigned long long clk;
unsigned long clk;
asm volatile("stckf %0" : "=Q" (clk) : : "cc");
return clk;
@ -208,9 +208,9 @@ extern union tod_clock tod_clock_base;
* Therefore preemption must be disabled, otherwise the returned
* value is not guaranteed to be monotonic.
*/
static inline unsigned long long get_tod_clock_monotonic(void)
static inline unsigned long get_tod_clock_monotonic(void)
{
unsigned long long tod;
unsigned long tod;
preempt_disable_notrace();
tod = get_tod_clock() - tod_clock_base.tod;
@ -237,7 +237,7 @@ static inline unsigned long long get_tod_clock_monotonic(void)
* -> ns = (th * 125) + ((tl * 125) >> 9);
*
*/
static inline unsigned long long tod_to_ns(unsigned long long todval)
static inline unsigned long tod_to_ns(unsigned long todval)
{
return ((todval >> 9) * 125) + (((todval & 0x1ff) * 125) >> 9);
}
@ -249,10 +249,10 @@ static inline unsigned long long tod_to_ns(unsigned long long todval)
*
* Returns: true if a is later than b
*/
static inline int tod_after(unsigned long long a, unsigned long long b)
static inline int tod_after(unsigned long a, unsigned long b)
{
if (MACHINE_HAS_SCC)
return (long long) a > (long long) b;
return (long) a > (long) b;
return a > b;
}
@ -263,10 +263,10 @@ static inline int tod_after(unsigned long long a, unsigned long long b)
*
* Returns: true if a is later than b
*/
static inline int tod_after_eq(unsigned long long a, unsigned long long b)
static inline int tod_after_eq(unsigned long a, unsigned long b)
{
if (MACHINE_HAS_SCC)
return (long long) a >= (long long) b;
return (long) a >= (long) b;
return a >= b;
}

0
arch/s390/include/uapi/asm/perf_cpum_cf_diag.h → arch/s390/include/uapi/asm/hwctrset.h
View File

12
arch/s390/kernel/idle.c
View File

@ -47,7 +47,7 @@ void account_idle_time_irq(void)
void arch_cpu_idle(void)
{
struct s390_idle_data *idle = this_cpu_ptr(&s390_idle);
unsigned long long idle_time;
unsigned long idle_time;
unsigned long psw_mask;
/* Wait for external, I/O or machine check interrupt. */
@ -73,7 +73,7 @@ static ssize_t show_idle_count(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct s390_idle_data *idle = &per_cpu(s390_idle, dev->id);
unsigned long long idle_count;
unsigned long idle_count;
unsigned int seq;
do {
@ -82,14 +82,14 @@ static ssize_t show_idle_count(struct device *dev,
if (READ_ONCE(idle->clock_idle_enter))
idle_count++;
} while (read_seqcount_retry(&idle->seqcount, seq));
return sprintf(buf, "%llu\n", idle_count);
return sprintf(buf, "%lu\n", idle_count);
}
DEVICE_ATTR(idle_count, 0444, show_idle_count, NULL);
static ssize_t show_idle_time(struct device *dev,
struct device_attribute *attr, char *buf)
{
unsigned long long now, idle_time, idle_enter, idle_exit, in_idle;
unsigned long now, idle_time, idle_enter, idle_exit, in_idle;
struct s390_idle_data *idle = &per_cpu(s390_idle, dev->id);
unsigned int seq;
@ -109,14 +109,14 @@ static ssize_t show_idle_time(struct device *dev,
}
}
idle_time += in_idle;
return sprintf(buf, "%llu\n", idle_time >> 12);
return sprintf(buf, "%lu\n", idle_time >> 12);
}
DEVICE_ATTR(idle_time_us, 0444, show_idle_time, NULL);
u64 arch_cpu_idle_time(int cpu)
{
struct s390_idle_data *idle = &per_cpu(s390_idle, cpu);
unsigned long long now, idle_enter, idle_exit, in_idle;
unsigned long now, idle_enter, idle_exit, in_idle;
unsigned int seq;
do {

2
arch/s390/kernel/perf_cpum_cf.c
View File

@ -269,7 +269,7 @@ static int __hw_perf_event_init(struct perf_event *event, unsigned int type)
case CPUMF_CTR_SET_MAX:
/* The counter could not be associated to a counter set */
return -EINVAL;
};
}
/* Initialize for using the CPU-measurement counter facility */
if (!atomic_inc_not_zero(&num_events)) {

20
arch/s390/kernel/perf_cpum_cf_diag.c
View File

@ -26,12 +26,10 @@
#include <asm/timex.h>
#include <asm/debug.h>
#include <asm/perf_cpum_cf_diag.h>
#include <asm/hwctrset.h>
#define CF_DIAG_CTRSET_DEF 0xfeef /* Counter set header mark */
#define CF_DIAG_MIN_INTERVAL 60 /* Minimum counter set read */
/* interval in seconds */
static unsigned long cf_diag_interval = CF_DIAG_MIN_INTERVAL;
static unsigned int cf_diag_cpu_speed;
static debug_info_t *cf_diag_dbg;
@ -729,7 +727,6 @@ static DEFINE_MUTEX(cf_diag_ctrset_mutex);
static struct cf_diag_ctrset {
unsigned long ctrset; /* Bit mask of counter set to read */
cpumask_t mask; /* CPU mask to read from */
time64_t lastread; /* Epoch counter set last read */
} cf_diag_ctrset;
static void cf_diag_ctrset_clear(void)
@ -866,27 +863,16 @@ static int cf_diag_all_read(unsigned long arg)
{
struct cf_diag_call_on_cpu_parm p;
cpumask_var_t mask;
time64_t now;
int rc = 0;
int rc;
debug_sprintf_event(cf_diag_dbg, 5, "%s\n", __func__);
if (!alloc_cpumask_var(&mask, GFP_KERNEL))
return -ENOMEM;
now = ktime_get_seconds();
if (cf_diag_ctrset.lastread + cf_diag_interval > now) {
debug_sprintf_event(cf_diag_dbg, 5, "%s now %lld "
" lastread %lld\n", __func__, now,
cf_diag_ctrset.lastread);
rc = -EAGAIN;
goto out;
} else {
cf_diag_ctrset.lastread = now;
}
p.sets = cf_diag_ctrset.ctrset;
cpumask_and(mask, &cf_diag_ctrset.mask, cpu_online_mask);
on_each_cpu_mask(mask, cf_diag_cpu_read, &p, 1);
rc = cf_diag_all_copy(arg, mask);
out:
free_cpumask_var(mask);
debug_sprintf_event(cf_diag_dbg, 5, "%s rc %d\n", __func__, rc);
return rc;

28
arch/s390/kernel/time.c
View File

@ -68,10 +68,10 @@ EXPORT_SYMBOL(s390_epoch_delta_notifier);
unsigned char ptff_function_mask[16];
static unsigned long long lpar_offset;
static unsigned long long initial_leap_seconds;
static unsigned long long tod_steering_end;
static long long tod_steering_delta;
static unsigned long lpar_offset;
static unsigned long initial_leap_seconds;
static unsigned long tod_steering_end;
static long tod_steering_delta;
/*
* Get time offsets with PTFF
@ -96,7 +96,7 @@ void __init time_early_init(void)
/* get initial leap seconds */
if (ptff_query(PTFF_QUI) && ptff(&qui, sizeof(qui), PTFF_QUI) == 0)
initial_leap_seconds = (unsigned long long)
initial_leap_seconds = (unsigned long)
((long) qui.old_leap * 4096000000L);
}
@ -222,7 +222,7 @@ void __init read_persistent_wall_and_boot_offset(struct timespec64 *wall_time,
static u64 read_tod_clock(struct clocksource *cs)
{
unsigned long long now, adj;
unsigned long now, adj;
preempt_disable(); /* protect from changes to steering parameters */
now = get_tod_clock();
@ -362,7 +362,7 @@ static inline int check_sync_clock(void)
* Apply clock delta to the global data structures.
* This is called once on the CPU that performed the clock sync.
*/
static void clock_sync_global(unsigned long long delta)
static void clock_sync_global(unsigned long delta)
{
unsigned long now, adj;
struct ptff_qto qto;
@ -378,7 +378,7 @@ static void clock_sync_global(unsigned long long delta)
-(adj >> 15) : (adj >> 15);
tod_steering_delta += delta;
if ((abs(tod_steering_delta) >> 48) != 0)
panic("TOD clock sync offset %lli is too large to drift\n",
panic("TOD clock sync offset %li is too large to drift\n",
tod_steering_delta);
tod_steering_end = now + (abs(tod_steering_delta) << 15);
vdso_data->arch_data.tod_steering_end = tod_steering_end;
@ -394,7 +394,7 @@ static void clock_sync_global(unsigned long long delta)
* Apply clock delta to the per-CPU data structures of this CPU.
* This is called for each online CPU after the call to clock_sync_global.
*/
static void clock_sync_local(unsigned long long delta)
static void clock_sync_local(unsigned long delta)
{
/* Add the delta to the clock comparator. */
if (S390_lowcore.clock_comparator != clock_comparator_max) {
@ -418,7 +418,7 @@ static void __init time_init_wq(void)
struct clock_sync_data {
atomic_t cpus;
int in_sync;
unsigned long long clock_delta;
unsigned long clock_delta;
};
/*
@ -538,7 +538,7 @@ static int stpinfo_valid(void)
static int stp_sync_clock(void *data)
{
struct clock_sync_data *sync = data;
unsigned long long clock_delta, flags;
u64 clock_delta, flags;
static int first;
int rc;
@ -720,8 +720,8 @@ static ssize_t ctn_id_show(struct device *dev,
mutex_lock(&stp_mutex);
if (stpinfo_valid())
ret = sprintf(buf, "%016llx\n",
*(unsigned long long *) stp_info.ctnid);
ret = sprintf(buf, "%016lx\n",
*(unsigned long *) stp_info.ctnid);
mutex_unlock(&stp_mutex);
return ret;
}
@ -794,7 +794,7 @@ static ssize_t leap_seconds_scheduled_show(struct device *dev,
if (!stzi.lsoib.p)
return sprintf(buf, "0,0\n");
return sprintf(buf, "%llu,%d\n",
return sprintf(buf, "%lu,%d\n",
tod_to_ns(stzi.lsoib.nlsout - TOD_UNIX_EPOCH) / NSEC_PER_SEC,
stzi.lsoib.nlso - stzi.lsoib.also);
}

2
arch/s390/kernel/topology.c
View File

@ -76,8 +76,6 @@ static void cpu_group_map(cpumask_t *dst, struct mask_info *info, unsigned int c
}
info = info->next;
}
if (cpumask_empty(&mask))
cpumask_copy(&mask, cpumask_of(cpu));
break;
case TOPOLOGY_MODE_PACKAGE:
cpumask_copy(&mask, cpu_present_mask);

2
arch/s390/kvm/interrupt.c
View File

@ -1287,7 +1287,7 @@ static u64 __calculate_sltime(struct kvm_vcpu *vcpu)
/* already expired? */
if (cputm >> 63)
return 0;
return min(sltime, tod_to_ns(cputm));
return min_t(u64, sltime, tod_to_ns(cputm));
}
} else if (cpu_timer_interrupts_enabled(vcpu)) {
sltime = kvm_s390_get_cpu_timer(vcpu);

6
drivers/s390/char/tty3270.c
View File

@ -424,8 +424,10 @@ tty3270_update(struct timer_list *t)
* last output position matches the start address
* of this line.
*/
if (s->string[1] == sba[0] && s->string[2] == sba[1])
str += 3, len -= 3;
if (s->string[1] == sba[0] && s->string[2] == sba[1]) {
str += 3;
len -= 3;
}
if (raw3270_request_add_data(wrq, str, len) != 0)
break;
list_del_init(&s->update);

44
drivers/s390/char/zcore.c
View File

@ -15,6 +15,7 @@
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/debugfs.h>
#include <linux/reboot.h>
#include <asm/asm-offsets.h>
#include <asm/ipl.h>
@ -238,6 +239,28 @@ static int __init zcore_reipl_init(void)
return 0;
}
static int zcore_reboot_and_on_panic_handler(struct notifier_block *self,
unsigned long event,
void *data)
{
if (hsa_available)
release_hsa();
return NOTIFY_OK;
}
static struct notifier_block zcore_reboot_notifier = {
.notifier_call = zcore_reboot_and_on_panic_handler,
/* we need to be notified before reipl and kdump */
.priority = INT_MAX,
};
static struct notifier_block zcore_on_panic_notifier = {
.notifier_call = zcore_reboot_and_on_panic_handler,
/* we need to be notified before reipl and kdump */
.priority = INT_MAX,
};
static int __init zcore_init(void)
{
unsigned char arch;
@ -293,28 +316,15 @@ static int __init zcore_init(void)
goto fail;
zcore_dir = debugfs_create_dir("zcore" , NULL);
if (!zcore_dir) {
rc = -ENOMEM;
goto fail;
}
zcore_reipl_file = debugfs_create_file("reipl", S_IRUSR, zcore_dir,
NULL, &zcore_reipl_fops);
if (!zcore_reipl_file) {
rc = -ENOMEM;
goto fail_dir;
}
zcore_hsa_file = debugfs_create_file("hsa", S_IRUSR|S_IWUSR, zcore_dir,
NULL, &zcore_hsa_fops);
if (!zcore_hsa_file) {
rc = -ENOMEM;
goto fail_reipl_file;
}
return 0;
fail_reipl_file:
debugfs_remove(zcore_reipl_file);
fail_dir:
debugfs_remove(zcore_dir);
register_reboot_notifier(&zcore_reboot_notifier);
atomic_notifier_chain_register(&panic_notifier_list, &zcore_on_panic_notifier);
return 0;
fail:
diag308(DIAG308_REL_HSA, NULL);
return rc;

2
drivers/s390/cio/device_fsm.c
View File

@ -47,7 +47,7 @@ static void ccw_timeout_log(struct ccw_device *cdev)
orb = &private->orb;
cc = stsch(sch->schid, &schib);
printk(KERN_WARNING "cio: ccw device timeout occurred at %llx, "
printk(KERN_WARNING "cio: ccw device timeout occurred at %lx, "
"device information:\n", get_tod_clock());
printk(KERN_WARNING "cio: orb:\n");
print_hex_dump(KERN_WARNING, "cio: ", DUMP_PREFIX_NONE, 16, 1,

6
drivers/s390/cio/vfio_ccw_ops.c
View File

@ -543,7 +543,7 @@ static ssize_t vfio_ccw_mdev_ioctl(struct mdev_device *mdev,
if (ret)
return ret;
return copy_to_user((void __user *)arg, &info, minsz);
return copy_to_user((void __user *)arg, &info, minsz) ? -EFAULT : 0;
}
case VFIO_DEVICE_GET_REGION_INFO:
{
@ -561,7 +561,7 @@ static ssize_t vfio_ccw_mdev_ioctl(struct mdev_device *mdev,
if (ret)
return ret;
return copy_to_user((void __user *)arg, &info, minsz);
return copy_to_user((void __user *)arg, &info, minsz) ? -EFAULT : 0;
}
case VFIO_DEVICE_GET_IRQ_INFO:
{
@ -582,7 +582,7 @@ static ssize_t vfio_ccw_mdev_ioctl(struct mdev_device *mdev,
if (info.count == -1)
return -EINVAL;
return copy_to_user((void __user *)arg, &info, minsz);
return copy_to_user((void __user *)arg, &info, minsz) ? -EFAULT : 0;
}
case VFIO_DEVICE_SET_IRQS:
{

2
drivers/s390/crypto/vfio_ap_ops.c
View File

@ -1286,7 +1286,7 @@ static int vfio_ap_mdev_get_device_info(unsigned long arg)
info.num_regions = 0;
info.num_irqs = 0;
return copy_to_user((void __user *)arg, &info, minsz);
return copy_to_user((void __user *)arg, &info, minsz) ? -EFAULT : 0;
}
static ssize_t vfio_ap_mdev_ioctl(struct mdev_device *mdev,

2
fs/Kconfig
View File

@ -203,7 +203,7 @@ config TMPFS_XATTR
config TMPFS_INODE64
bool "Use 64-bit ino_t by default in tmpfs"
depends on TMPFS && 64BIT && !(S390 || ALPHA)
depends on TMPFS && 64BIT
default n
help
tmpfs has historically used only inode numbers as wide as an unsigned