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-rw-r--r--Makefile2
-rw-r--r--arch/s390/include/asm/debug.h3
-rw-r--r--arch/s390/include/asm/dis.h2
-rw-r--r--arch/s390/include/asm/kprobes.h20
-rw-r--r--arch/s390/include/asm/sysinfo.h2
-rw-r--r--arch/s390/kernel/debug.c8
-rw-r--r--arch/s390/kernel/entry.S21
-rw-r--r--arch/s390/kernel/ftrace.c4
-rw-r--r--arch/s390/kernel/vmlinux.lds.S8
-rw-r--r--arch/s390/lib/probes.c1
-rw-r--r--arch/s390/lib/uaccess.c4
-rw-r--r--arch/sparc/include/asm/hugetlb.h6
-rw-r--r--arch/sparc/include/asm/pgtable_32.h4
-rw-r--r--arch/sparc/include/asm/setup.h2
-rw-r--r--arch/sparc/kernel/ftrace.c13
-rw-r--r--arch/sparc/mm/init_32.c2
-rw-r--r--drivers/edac/amd64_edac.c40
-rw-r--r--drivers/firmware/efi/efi-pstore.c12
-rw-r--r--drivers/hwmon/coretemp.c14
-rw-r--r--drivers/i2c/busses/i2c-mv64xxx.c6
-rw-r--r--drivers/i2c/busses/i2c-xgene-slimpro.c1
-rw-r--r--drivers/i2c/i2c-mux.c26
-rw-r--r--drivers/i2c/muxes/i2c-mux-reg.c21
-rw-r--r--drivers/md/dm-bufio.c16
-rw-r--r--drivers/md/dm-cache-background-tracker.c5
-rw-r--r--drivers/md/dm-cache-policy-smq.c31
-rw-r--r--drivers/md/dm-cache-target.c27
-rw-r--r--drivers/md/dm-mpath.c19
-rw-r--r--drivers/md/dm-rq.c1
-rw-r--r--drivers/md/dm-thin-metadata.c4
-rw-r--r--drivers/md/persistent-data/dm-space-map-disk.c15
-rw-r--r--drivers/s390/cio/ccwgroup.c4
-rw-r--r--drivers/s390/cio/qdio_debug.h2
-rw-r--r--drivers/s390/virtio/virtio_ccw.c2
-rw-r--r--kernel/fork.c8
-rw-r--r--kernel/pid_namespace.c2
-rw-r--r--scripts/Makefile.headersinst43
37 files changed, 240 insertions, 161 deletions
diff --git a/Makefile b/Makefile
index b400c0604fac..b1ee4a49efa2 100644
--- a/Makefile
+++ b/Makefile
@@ -1172,7 +1172,7 @@ headers_check_all: headers_install_all
PHONY += headers_check
headers_check: headers_install
$(Q)$(MAKE) $(hdr-inst)=include/uapi HDRCHECK=1
- $(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/uapi/ $(hdr-dst) HDRCHECK=1
+ $(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/uapi $(hdr-dst) HDRCHECK=1
# ---------------------------------------------------------------------------
# Kernel selftest
diff --git a/arch/s390/include/asm/debug.h b/arch/s390/include/asm/debug.h
index 0206c8052328..df7b54ea956d 100644
--- a/arch/s390/include/asm/debug.h
+++ b/arch/s390/include/asm/debug.h
@@ -10,6 +10,7 @@
#include <linux/spinlock.h>
#include <linux/kernel.h>
#include <linux/time.h>
+#include <linux/refcount.h>
#include <uapi/asm/debug.h>
#define DEBUG_MAX_LEVEL 6 /* debug levels range from 0 to 6 */
@@ -31,7 +32,7 @@ struct debug_view;
typedef struct debug_info {
struct debug_info* next;
struct debug_info* prev;
- atomic_t ref_count;
+ refcount_t ref_count;
spinlock_t lock;
int level;
int nr_areas;
diff --git a/arch/s390/include/asm/dis.h b/arch/s390/include/asm/dis.h
index 60323c21938b..37f617dfbede 100644
--- a/arch/s390/include/asm/dis.h
+++ b/arch/s390/include/asm/dis.h
@@ -40,6 +40,8 @@ static inline int insn_length(unsigned char code)
return ((((int) code + 64) >> 7) + 1) << 1;
}
+struct pt_regs;
+
void show_code(struct pt_regs *regs);
void print_fn_code(unsigned char *code, unsigned long len);
int insn_to_mnemonic(unsigned char *instruction, char *buf, unsigned int len);
diff --git a/arch/s390/include/asm/kprobes.h b/arch/s390/include/asm/kprobes.h
index 1293c4066cfc..28792ef82c83 100644
--- a/arch/s390/include/asm/kprobes.h
+++ b/arch/s390/include/asm/kprobes.h
@@ -27,12 +27,21 @@
* 2005-Dec Used as a template for s390 by Mike Grundy
* <grundym@us.ibm.com>
*/
+#include <linux/types.h>
#include <asm-generic/kprobes.h>
#define BREAKPOINT_INSTRUCTION 0x0002
+#define FIXUP_PSW_NORMAL 0x08
+#define FIXUP_BRANCH_NOT_TAKEN 0x04
+#define FIXUP_RETURN_REGISTER 0x02
+#define FIXUP_NOT_REQUIRED 0x01
+
+int probe_is_prohibited_opcode(u16 *insn);
+int probe_get_fixup_type(u16 *insn);
+int probe_is_insn_relative_long(u16 *insn);
+
#ifdef CONFIG_KPROBES
-#include <linux/types.h>
#include <linux/ptrace.h>
#include <linux/percpu.h>
#include <linux/sched/task_stack.h>
@@ -56,11 +65,6 @@ typedef u16 kprobe_opcode_t;
#define KPROBE_SWAP_INST 0x10
-#define FIXUP_PSW_NORMAL 0x08
-#define FIXUP_BRANCH_NOT_TAKEN 0x04
-#define FIXUP_RETURN_REGISTER 0x02
-#define FIXUP_NOT_REQUIRED 0x01
-
/* Architecture specific copy of original instruction */
struct arch_specific_insn {
/* copy of original instruction */
@@ -90,10 +94,6 @@ int kprobe_fault_handler(struct pt_regs *regs, int trapnr);
int kprobe_exceptions_notify(struct notifier_block *self,
unsigned long val, void *data);
-int probe_is_prohibited_opcode(u16 *insn);
-int probe_get_fixup_type(u16 *insn);
-int probe_is_insn_relative_long(u16 *insn);
-
#define flush_insn_slot(p) do { } while (0)
#endif /* CONFIG_KPROBES */
diff --git a/arch/s390/include/asm/sysinfo.h b/arch/s390/include/asm/sysinfo.h
index 73bff45ced55..e784bed6ed7f 100644
--- a/arch/s390/include/asm/sysinfo.h
+++ b/arch/s390/include/asm/sysinfo.h
@@ -146,7 +146,7 @@ extern int topology_max_mnest;
* Returns the maximum nesting level supported by the cpu topology code.
* The current maximum level is 4 which is the drawer level.
*/
-static inline int topology_mnest_limit(void)
+static inline unsigned char topology_mnest_limit(void)
{
return min(topology_max_mnest, 4);
}
diff --git a/arch/s390/kernel/debug.c b/arch/s390/kernel/debug.c
index 530226b6cb19..86b3e74f569e 100644
--- a/arch/s390/kernel/debug.c
+++ b/arch/s390/kernel/debug.c
@@ -277,7 +277,7 @@ debug_info_alloc(const char *name, int pages_per_area, int nr_areas,
memset(rc->views, 0, DEBUG_MAX_VIEWS * sizeof(struct debug_view *));
memset(rc->debugfs_entries, 0 ,DEBUG_MAX_VIEWS *
sizeof(struct dentry*));
- atomic_set(&(rc->ref_count), 0);
+ refcount_set(&(rc->ref_count), 0);
return rc;
@@ -361,7 +361,7 @@ debug_info_create(const char *name, int pages_per_area, int nr_areas,
debug_area_last = rc;
rc->next = NULL;
- debug_info_get(rc);
+ refcount_set(&rc->ref_count, 1);
out:
return rc;
}
@@ -416,7 +416,7 @@ static void
debug_info_get(debug_info_t * db_info)
{
if (db_info)
- atomic_inc(&db_info->ref_count);
+ refcount_inc(&db_info->ref_count);
}
/*
@@ -431,7 +431,7 @@ debug_info_put(debug_info_t *db_info)
if (!db_info)
return;
- if (atomic_dec_and_test(&db_info->ref_count)) {
+ if (refcount_dec_and_test(&db_info->ref_count)) {
for (i = 0; i < DEBUG_MAX_VIEWS; i++) {
if (!db_info->views[i])
continue;
diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S
index a5f5d3bb3dbc..e408d9cc5b96 100644
--- a/arch/s390/kernel/entry.S
+++ b/arch/s390/kernel/entry.S
@@ -312,6 +312,7 @@ ENTRY(system_call)
lg %r14,__LC_VDSO_PER_CPU
lmg %r0,%r10,__PT_R0(%r11)
mvc __LC_RETURN_PSW(16),__PT_PSW(%r11)
+.Lsysc_exit_timer:
stpt __LC_EXIT_TIMER
mvc __VDSO_ECTG_BASE(16,%r14),__LC_EXIT_TIMER
lmg %r11,%r15,__PT_R11(%r11)
@@ -623,6 +624,7 @@ ENTRY(io_int_handler)
lg %r14,__LC_VDSO_PER_CPU
lmg %r0,%r10,__PT_R0(%r11)
mvc __LC_RETURN_PSW(16),__PT_PSW(%r11)
+.Lio_exit_timer:
stpt __LC_EXIT_TIMER
mvc __VDSO_ECTG_BASE(16,%r14),__LC_EXIT_TIMER
lmg %r11,%r15,__PT_R11(%r11)
@@ -1174,15 +1176,23 @@ cleanup_critical:
br %r14
.Lcleanup_sysc_restore:
+ # check if stpt has been executed
clg %r9,BASED(.Lcleanup_sysc_restore_insn)
+ jh 0f
+ mvc __LC_EXIT_TIMER(8),__LC_ASYNC_ENTER_TIMER
+ cghi %r11,__LC_SAVE_AREA_ASYNC
je 0f
+ mvc __LC_EXIT_TIMER(8),__LC_MCCK_ENTER_TIMER
+0: clg %r9,BASED(.Lcleanup_sysc_restore_insn+8)
+ je 1f
lg %r9,24(%r11) # get saved pointer to pt_regs
mvc __LC_RETURN_PSW(16),__PT_PSW(%r9)
mvc 0(64,%r11),__PT_R8(%r9)
lmg %r0,%r7,__PT_R0(%r9)
-0: lmg %r8,%r9,__LC_RETURN_PSW
+1: lmg %r8,%r9,__LC_RETURN_PSW
br %r14
.Lcleanup_sysc_restore_insn:
+ .quad .Lsysc_exit_timer
.quad .Lsysc_done - 4
.Lcleanup_io_tif:
@@ -1190,15 +1200,20 @@ cleanup_critical:
br %r14
.Lcleanup_io_restore:
+ # check if stpt has been executed
clg %r9,BASED(.Lcleanup_io_restore_insn)
- je 0f
+ jh 0f
+ mvc __LC_EXIT_TIMER(8),__LC_MCCK_ENTER_TIMER
+0: clg %r9,BASED(.Lcleanup_io_restore_insn+8)
+ je 1f
lg %r9,24(%r11) # get saved r11 pointer to pt_regs
mvc __LC_RETURN_PSW(16),__PT_PSW(%r9)
mvc 0(64,%r11),__PT_R8(%r9)
lmg %r0,%r7,__PT_R0(%r9)
-0: lmg %r8,%r9,__LC_RETURN_PSW
+1: lmg %r8,%r9,__LC_RETURN_PSW
br %r14
.Lcleanup_io_restore_insn:
+ .quad .Lio_exit_timer
.quad .Lio_done - 4
.Lcleanup_idle:
diff --git a/arch/s390/kernel/ftrace.c b/arch/s390/kernel/ftrace.c
index 27477f34cc0a..d03a6d12c4bd 100644
--- a/arch/s390/kernel/ftrace.c
+++ b/arch/s390/kernel/ftrace.c
@@ -173,6 +173,8 @@ int __init ftrace_dyn_arch_init(void)
return 0;
}
+#ifdef CONFIG_MODULES
+
static int __init ftrace_plt_init(void)
{
unsigned int *ip;
@@ -191,6 +193,8 @@ static int __init ftrace_plt_init(void)
}
device_initcall(ftrace_plt_init);
+#endif /* CONFIG_MODULES */
+
#ifdef CONFIG_FUNCTION_GRAPH_TRACER
/*
* Hook the return address and push it in the stack of return addresses
diff --git a/arch/s390/kernel/vmlinux.lds.S b/arch/s390/kernel/vmlinux.lds.S
index 72307f108c40..6e2c42bd1c3b 100644
--- a/arch/s390/kernel/vmlinux.lds.S
+++ b/arch/s390/kernel/vmlinux.lds.S
@@ -31,8 +31,14 @@ SECTIONS
{
. = 0x00000000;
.text : {
- _text = .; /* Text and read-only data */
+ /* Text and read-only data */
HEAD_TEXT
+ /*
+ * E.g. perf doesn't like symbols starting at address zero,
+ * therefore skip the initial PSW and channel program located
+ * at address zero and let _text start at 0x200.
+ */
+ _text = 0x200;
TEXT_TEXT
SCHED_TEXT
CPUIDLE_TEXT
diff --git a/arch/s390/lib/probes.c b/arch/s390/lib/probes.c
index ae90e1ae3607..1963ddbf4ab3 100644
--- a/arch/s390/lib/probes.c
+++ b/arch/s390/lib/probes.c
@@ -4,6 +4,7 @@
* Copyright IBM Corp. 2014
*/
+#include <linux/errno.h>
#include <asm/kprobes.h>
#include <asm/dis.h>
diff --git a/arch/s390/lib/uaccess.c b/arch/s390/lib/uaccess.c
index 1e5bb2b86c42..b3bd3f23b8e8 100644
--- a/arch/s390/lib/uaccess.c
+++ b/arch/s390/lib/uaccess.c
@@ -337,8 +337,8 @@ long __strncpy_from_user(char *dst, const char __user *src, long size)
return 0;
done = 0;
do {
- offset = (size_t)src & ~PAGE_MASK;
- len = min(size - done, PAGE_SIZE - offset);
+ offset = (size_t)src & (L1_CACHE_BYTES - 1);
+ len = min(size - done, L1_CACHE_BYTES - offset);
if (copy_from_user(dst, src, len))
return -EFAULT;
len_str = strnlen(dst, len);
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index dcbf985ab243..d1f837dc77a4 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -24,9 +24,11 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
static inline int prepare_hugepage_range(struct file *file,
unsigned long addr, unsigned long len)
{
- if (len & ~HPAGE_MASK)
+ struct hstate *h = hstate_file(file);
+
+ if (len & ~huge_page_mask(h))
return -EINVAL;
- if (addr & ~HPAGE_MASK)
+ if (addr & ~huge_page_mask(h))
return -EINVAL;
return 0;
}
diff --git a/arch/sparc/include/asm/pgtable_32.h b/arch/sparc/include/asm/pgtable_32.h
index ce6f56980aef..cf190728360b 100644
--- a/arch/sparc/include/asm/pgtable_32.h
+++ b/arch/sparc/include/asm/pgtable_32.h
@@ -91,9 +91,9 @@ extern unsigned long pfn_base;
* ZERO_PAGE is a global shared page that is always zero: used
* for zero-mapped memory areas etc..
*/
-extern unsigned long empty_zero_page;
+extern unsigned long empty_zero_page[PAGE_SIZE / sizeof(unsigned long)];
-#define ZERO_PAGE(vaddr) (virt_to_page(&empty_zero_page))
+#define ZERO_PAGE(vaddr) (virt_to_page(empty_zero_page))
/*
* In general all page table modifications should use the V8 atomic
diff --git a/arch/sparc/include/asm/setup.h b/arch/sparc/include/asm/setup.h
index 478bf6bb4598..3fae200dd251 100644
--- a/arch/sparc/include/asm/setup.h
+++ b/arch/sparc/include/asm/setup.h
@@ -16,7 +16,7 @@ extern char reboot_command[];
*/
extern unsigned char boot_cpu_id;
-extern unsigned long empty_zero_page;
+extern unsigned long empty_zero_page[PAGE_SIZE / sizeof(unsigned long)];
extern int serial_console;
static inline int con_is_present(void)
diff --git a/arch/sparc/kernel/ftrace.c b/arch/sparc/kernel/ftrace.c
index 6bcff698069b..cec54dc4ab81 100644
--- a/arch/sparc/kernel/ftrace.c
+++ b/arch/sparc/kernel/ftrace.c
@@ -130,17 +130,16 @@ unsigned long prepare_ftrace_return(unsigned long parent,
if (unlikely(atomic_read(&current->tracing_graph_pause)))
return parent + 8UL;
- if (ftrace_push_return_trace(parent, self_addr, &trace.depth,
- frame_pointer, NULL) == -EBUSY)
- return parent + 8UL;
-
trace.func = self_addr;
+ trace.depth = current->curr_ret_stack + 1;
/* Only trace if the calling function expects to */
- if (!ftrace_graph_entry(&trace)) {
- current->curr_ret_stack--;
+ if (!ftrace_graph_entry(&trace))
+ return parent + 8UL;
+
+ if (ftrace_push_return_trace(parent, self_addr, &trace.depth,
+ frame_pointer, NULL) == -EBUSY)
return parent + 8UL;
- }
return return_hooker;
}
diff --git a/arch/sparc/mm/init_32.c b/arch/sparc/mm/init_32.c
index c6afe98de4d9..3bd0d513bddb 100644
--- a/arch/sparc/mm/init_32.c
+++ b/arch/sparc/mm/init_32.c
@@ -290,7 +290,7 @@ void __init mem_init(void)
/* Saves us work later. */
- memset((void *)&empty_zero_page, 0, PAGE_SIZE);
+ memset((void *)empty_zero_page, 0, PAGE_SIZE);
i = last_valid_pfn >> ((20 - PAGE_SHIFT) + 5);
i += 1;
diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c
index 82dab1692264..3aea55698165 100644
--- a/drivers/edac/amd64_edac.c
+++ b/drivers/edac/amd64_edac.c
@@ -782,24 +782,26 @@ static void debug_dump_dramcfg_low(struct amd64_pvt *pvt, u32 dclr, int chan)
static void debug_display_dimm_sizes_df(struct amd64_pvt *pvt, u8 ctrl)
{
- u32 *dcsb = ctrl ? pvt->csels[1].csbases : pvt->csels[0].csbases;
- int dimm, size0, size1;
+ int dimm, size0, size1, cs0, cs1;
edac_printk(KERN_DEBUG, EDAC_MC, "UMC%d chip selects:\n", ctrl);
for (dimm = 0; dimm < 4; dimm++) {
size0 = 0;
+ cs0 = dimm * 2;
- if (dcsb[dimm*2] & DCSB_CS_ENABLE)
- size0 = pvt->ops->dbam_to_cs(pvt, ctrl, 0, dimm);
+ if (csrow_enabled(cs0, ctrl, pvt))
+ size0 = pvt->ops->dbam_to_cs(pvt, ctrl, 0, cs0);
size1 = 0;
- if (dcsb[dimm*2 + 1] & DCSB_CS_ENABLE)
- size1 = pvt->ops->dbam_to_cs(pvt, ctrl, 0, dimm);
+ cs1 = dimm * 2 + 1;
+
+ if (csrow_enabled(cs1, ctrl, pvt))
+ size1 = pvt->ops->dbam_to_cs(pvt, ctrl, 0, cs1);
amd64_info(EDAC_MC ": %d: %5dMB %d: %5dMB\n",
- dimm * 2, size0,
- dimm * 2 + 1, size1);
+ cs0, size0,
+ cs1, size1);
}
}
@@ -2756,26 +2758,22 @@ skip:
* encompasses
*
*/
-static u32 get_csrow_nr_pages(struct amd64_pvt *pvt, u8 dct, int csrow_nr)
+static u32 get_csrow_nr_pages(struct amd64_pvt *pvt, u8 dct, int csrow_nr_orig)
{
- u32 cs_mode, nr_pages;
u32 dbam = dct ? pvt->dbam1 : pvt->dbam0;
+ int csrow_nr = csrow_nr_orig;
+ u32 cs_mode, nr_pages;
+ if (!pvt->umc)
+ csrow_nr >>= 1;
- /*
- * The math on this doesn't look right on the surface because x/2*4 can
- * be simplified to x*2 but this expression makes use of the fact that
- * it is integral math where 1/2=0. This intermediate value becomes the
- * number of bits to shift the DBAM register to extract the proper CSROW
- * field.
- */
- cs_mode = DBAM_DIMM(csrow_nr / 2, dbam);
+ cs_mode = DBAM_DIMM(csrow_nr, dbam);
- nr_pages = pvt->ops->dbam_to_cs(pvt, dct, cs_mode, (csrow_nr / 2))
- << (20 - PAGE_SHIFT);
+ nr_pages = pvt->ops->dbam_to_cs(pvt, dct, cs_mode, csrow_nr);
+ nr_pages <<= 20 - PAGE_SHIFT;
edac_dbg(0, "csrow: %d, channel: %d, DBAM idx: %d\n",
- csrow_nr, dct, cs_mode);
+ csrow_nr_orig, dct, cs_mode);
edac_dbg(0, "nr_pages/channel: %u\n", nr_pages);
return nr_pages;
diff --git a/drivers/firmware/efi/efi-pstore.c b/drivers/firmware/efi/efi-pstore.c
index ed3137c1ceb0..ab3a951a17e6 100644
--- a/drivers/firmware/efi/efi-pstore.c
+++ b/drivers/firmware/efi/efi-pstore.c
@@ -155,19 +155,14 @@ static int efi_pstore_scan_sysfs_exit(struct efivar_entry *pos,
* efi_pstore_sysfs_entry_iter
*
* @record: pstore record to pass to callback
- * @pos: entry to begin iterating from
*
* You MUST call efivar_enter_iter_begin() before this function, and
* efivar_entry_iter_end() afterwards.
*
- * It is possible to begin iteration from an arbitrary entry within
- * the list by passing @pos. @pos is updated on return to point to
- * the next entry of the last one passed to efi_pstore_read_func().
- * To begin iterating from the beginning of the list @pos must be %NULL.
*/
-static int efi_pstore_sysfs_entry_iter(struct pstore_record *record,
- struct efivar_entry **pos)
+static int efi_pstore_sysfs_entry_iter(struct pstore_record *record)
{
+ struct efivar_entry **pos = (struct efivar_entry **)&record->psi->data;
struct efivar_entry *entry, *n;
struct list_head *head = &efivar_sysfs_list;
int size = 0;
@@ -218,7 +213,6 @@ static int efi_pstore_sysfs_entry_iter(struct pstore_record *record,
*/
static ssize_t efi_pstore_read(struct pstore_record *record)
{
- struct efivar_entry *entry = (struct efivar_entry *)record->psi->data;
ssize_t size;
record->buf = kzalloc(EFIVARS_DATA_SIZE_MAX, GFP_KERNEL);
@@ -229,7 +223,7 @@ static ssize_t efi_pstore_read(struct pstore_record *record)
size = -EINTR;
goto out;
}
- size = efi_pstore_sysfs_entry_iter(record, &entry);
+ size = efi_pstore_sysfs_entry_iter(record);
efivar_entry_iter_end();
out:
diff --git a/drivers/hwmon/coretemp.c b/drivers/hwmon/coretemp.c
index 3ac4c03ba77b..c13a4fd86b3c 100644
--- a/drivers/hwmon/coretemp.c
+++ b/drivers/hwmon/coretemp.c
@@ -605,6 +605,13 @@ static int coretemp_cpu_online(unsigned int cpu)
struct platform_data *pdata;
/*
+ * Don't execute this on resume as the offline callback did
+ * not get executed on suspend.
+ */
+ if (cpuhp_tasks_frozen)
+ return 0;
+
+ /*
* CPUID.06H.EAX[0] indicates whether the CPU has thermal
* sensors. We check this bit only, all the early CPUs
* without thermal sensors will be filtered out.
@@ -654,6 +661,13 @@ static int coretemp_cpu_offline(unsigned int cpu)
struct temp_data *tdata;
int indx, target;
+ /*
+ * Don't execute this on suspend as the device remove locks
+ * up the machine.
+ */
+ if (cpuhp_tasks_frozen)
+ return 0;
+
/* If the physical CPU device does not exist, just return */
if (!pdev)
return 0;
diff --git a/drivers/i2c/busses/i2c-mv64xxx.c b/drivers/i2c/busses/i2c-mv64xxx.c
index cf737ec8563b..5c4db65c5019 100644
--- a/drivers/i2c/busses/i2c-mv64xxx.c
+++ b/drivers/i2c/busses/i2c-mv64xxx.c
@@ -819,7 +819,6 @@ mv64xxx_of_config(struct mv64xxx_i2c_data *drv_data,
rc = -EINVAL;
goto out;
}
- drv_data->irq = irq_of_parse_and_map(np, 0);
drv_data->rstc = devm_reset_control_get_optional(dev, NULL);
if (IS_ERR(drv_data->rstc)) {
@@ -902,10 +901,11 @@ mv64xxx_i2c_probe(struct platform_device *pd)
if (!IS_ERR(drv_data->clk))
clk_prepare_enable(drv_data->clk);
+ drv_data->irq = platform_get_irq(pd, 0);
+
if (pdata) {
drv_data->freq_m = pdata->freq_m;
drv_data->freq_n = pdata->freq_n;
- drv_data->irq = platform_get_irq(pd, 0);
drv_data->adapter.timeout = msecs_to_jiffies(pdata->timeout);
drv_data->offload_enabled = false;
memcpy(&drv_data->reg_offsets, &mv64xxx_i2c_regs_mv64xxx, sizeof(drv_data->reg_offsets));
@@ -915,7 +915,7 @@ mv64xxx_i2c_probe(struct platform_device *pd)
goto exit_clk;
}
if (drv_data->irq < 0) {
- rc = -ENXIO;
+ rc = drv_data->irq;
goto exit_reset;
}
diff --git a/drivers/i2c/busses/i2c-xgene-slimpro.c b/drivers/i2c/busses/i2c-xgene-slimpro.c
index dbe7e44c9321..6ba6c83ca8f1 100644
--- a/drivers/i2c/busses/i2c-xgene-slimpro.c
+++ b/drivers/i2c/busses/i2c-xgene-slimpro.c
@@ -416,6 +416,7 @@ static int xgene_slimpro_i2c_probe(struct platform_device *pdev)
adapter->class = I2C_CLASS_HWMON;
adapter->dev.parent = &pdev->dev;
adapter->dev.of_node = pdev->dev.of_node;
+ ACPI_COMPANION_SET(&adapter->dev, ACPI_COMPANION(&pdev->dev));
i2c_set_adapdata(adapter, ctx);
rc = i2c_add_adapter(adapter);
if (rc) {
diff --git a/drivers/i2c/i2c-mux.c b/drivers/i2c/i2c-mux.c
index 26f7237558ba..9669ca4937b8 100644
--- a/drivers/i2c/i2c-mux.c
+++ b/drivers/i2c/i2c-mux.c
@@ -395,18 +395,20 @@ int i2c_mux_add_adapter(struct i2c_mux_core *muxc,
if (force_nr) {
priv->adap.nr = force_nr;
ret = i2c_add_numbered_adapter(&priv->adap);
- dev_err(&parent->dev,
- "failed to add mux-adapter %u as bus %u (error=%d)\n",
- chan_id, force_nr, ret);
+ if (ret < 0) {
+ dev_err(&parent->dev,
+ "failed to add mux-adapter %u as bus %u (error=%d)\n",
+ chan_id, force_nr, ret);
+ goto err_free_priv;
+ }
} else {
ret = i2c_add_adapter(&priv->adap);
- dev_err(&parent->dev,
- "failed to add mux-adapter %u (error=%d)\n",
- chan_id, ret);
- }
- if (ret < 0) {
- kfree(priv);
- return ret;
+ if (ret < 0) {
+ dev_err(&parent->dev,
+ "failed to add mux-adapter %u (error=%d)\n",
+ chan_id, ret);
+ goto err_free_priv;
+ }
}
WARN(sysfs_create_link(&priv->adap.dev.kobj, &muxc->dev->kobj,
@@ -422,6 +424,10 @@ int i2c_mux_add_adapter(struct i2c_mux_core *muxc,
muxc->adapter[muxc->num_adapters++] = &priv->adap;
return 0;
+
+err_free_priv:
+ kfree(priv);
+ return ret;
}
EXPORT_SYMBOL_GPL(i2c_mux_add_adapter);
diff --git a/drivers/i2c/muxes/i2c-mux-reg.c b/drivers/i2c/muxes/i2c-mux-reg.c
index 406d5059072c..d97031804de8 100644
--- a/drivers/i2c/muxes/i2c-mux-reg.c
+++ b/drivers/i2c/muxes/i2c-mux-reg.c
@@ -196,20 +196,25 @@ static int i2c_mux_reg_probe(struct platform_device *pdev)
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
mux->data.reg_size = resource_size(res);
mux->data.reg = devm_ioremap_resource(&pdev->dev, res);
- if (IS_ERR(mux->data.reg))
- return PTR_ERR(mux->data.reg);
+ if (IS_ERR(mux->data.reg)) {
+ ret = PTR_ERR(mux->data.reg);
+ goto err_put_parent;
+ }
}
if (mux->data.reg_size != 4 && mux->data.reg_size != 2 &&
mux->data.reg_size != 1) {
dev_err(&pdev->dev, "Invalid register size\n");
- return -EINVAL;
+ ret = -EINVAL;
+ goto err_put_parent;
}
muxc = i2c_mux_alloc(parent, &pdev->dev, mux->data.n_values, 0, 0,
i2c_mux_reg_select, NULL);
- if (!muxc)
- return -ENOMEM;
+ if (!muxc) {
+ ret = -ENOMEM;
+ goto err_put_parent;
+ }
muxc->priv = mux;
platform_set_drvdata(pdev, muxc);
@@ -223,7 +228,7 @@ static int i2c_mux_reg_probe(struct platform_device *pdev)
ret = i2c_mux_add_adapter(muxc, nr, mux->data.values[i], class);
if (ret)
- goto add_adapter_failed;
+ goto err_del_mux_adapters;
}
dev_dbg(&pdev->dev, "%d port mux on %s adapter\n",
@@ -231,8 +236,10 @@ static int i2c_mux_reg_probe(struct platform_device *pdev)
return 0;
-add_adapter_failed:
+err_del_mux_adapters:
i2c_mux_del_adapters(muxc);
+err_put_parent:
+ i2c_put_adapter(parent);
return ret;
}
diff --git a/drivers/md/dm-bufio.c b/drivers/md/dm-bufio.c
index 5db11a405129..cd8139593ccd 100644
--- a/drivers/md/dm-bufio.c
+++ b/drivers/md/dm-bufio.c
@@ -218,7 +218,7 @@ static DEFINE_SPINLOCK(param_spinlock);
* Buffers are freed after this timeout
*/
static unsigned dm_bufio_max_age = DM_BUFIO_DEFAULT_AGE_SECS;
-static unsigned dm_bufio_retain_bytes = DM_BUFIO_DEFAULT_RETAIN_BYTES;
+static unsigned long dm_bufio_retain_bytes = DM_BUFIO_DEFAULT_RETAIN_BYTES;
static unsigned long dm_bufio_peak_allocated;
static unsigned long dm_bufio_allocated_kmem_cache;
@@ -1558,10 +1558,10 @@ static bool __try_evict_buffer(struct dm_buffer *b, gfp_t gfp)
return true;
}
-static unsigned get_retain_buffers(struct dm_bufio_client *c)
+static unsigned long get_retain_buffers(struct dm_bufio_client *c)
{
- unsigned retain_bytes = ACCESS_ONCE(dm_bufio_retain_bytes);
- return retain_bytes / c->block_size;
+ unsigned long retain_bytes = ACCESS_ONCE(dm_bufio_retain_bytes);
+ return retain_bytes >> (c->sectors_per_block_bits + SECTOR_SHIFT);
}
static unsigned long __scan(struct dm_bufio_client *c, unsigned long nr_to_scan,
@@ -1571,7 +1571,7 @@ static unsigned long __scan(struct dm_bufio_client *c, unsigned long nr_to_scan,
struct dm_buffer *b, *tmp;
unsigned long freed = 0;
unsigned long count = nr_to_scan;
- unsigned retain_target = get_retain_buffers(c);
+ unsigned long retain_target = get_retain_buffers(c);
for (l = 0; l < LIST_SIZE; l++) {
list_for_each_entry_safe_reverse(b, tmp, &c->lru[l], lru_list) {
@@ -1794,8 +1794,8 @@ static bool older_than(struct dm_buffer *b, unsigned long age_hz)
static void __evict_old_buffers(struct dm_bufio_client *c, unsigned long age_hz)
{
struct dm_buffer *b, *tmp;
- unsigned retain_target = get_retain_buffers(c);
- unsigned count;
+ unsigned long retain_target = get_retain_buffers(c);
+ unsigned long count;
LIST_HEAD(write_list);
dm_bufio_lock(c);
@@ -1955,7 +1955,7 @@ MODULE_PARM_DESC(max_cache_size_bytes, "Size of metadata cache");
module_param_named(max_age_seconds, dm_bufio_max_age, uint, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(max_age_seconds, "Max age of a buffer in seconds");
-module_param_named(retain_bytes, dm_bufio_retain_bytes, uint, S_IRUGO | S_IWUSR);
+module_param_named(retain_bytes, dm_bufio_retain_bytes, ulong, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(retain_bytes, "Try to keep at least this many bytes cached in memory");
module_param_named(peak_allocated_bytes, dm_bufio_peak_allocated, ulong, S_IRUGO | S_IWUSR);
diff --git a/drivers/md/dm-cache-background-tracker.c b/drivers/md/dm-cache-background-tracker.c
index 9b1afdfb13f0..707233891291 100644
--- a/drivers/md/dm-cache-background-tracker.c
+++ b/drivers/md/dm-cache-background-tracker.c
@@ -33,6 +33,11 @@ struct background_tracker *btracker_create(unsigned max_work)
{
struct background_tracker *b = kmalloc(sizeof(*b), GFP_KERNEL);
+ if (!b) {
+ DMERR("couldn't create background_tracker");
+ return NULL;
+ }
+
b->max_work = max_work;
atomic_set(&b->pending_promotes, 0);
atomic_set(&b->pending_writebacks, 0);
diff --git a/drivers/md/dm-cache-policy-smq.c b/drivers/md/dm-cache-policy-smq.c
index 72479bd61e11..e5eb9c9b4bc8 100644
--- a/drivers/md/dm-cache-policy-smq.c
+++ b/drivers/md/dm-cache-policy-smq.c
@@ -1120,8 +1120,6 @@ static bool clean_target_met(struct smq_policy *mq, bool idle)
* Cache entries may not be populated. So we cannot rely on the
* size of the clean queue.
*/
- unsigned nr_clean;
-
if (idle) {
/*
* We'd like to clean everything.
@@ -1129,18 +1127,16 @@ static bool clean_target_met(struct smq_policy *mq, bool idle)
return q_size(&mq->dirty) == 0u;
}
- nr_clean = from_cblock(mq->cache_size) - q_size(&mq->dirty);
- return (nr_clean + btracker_nr_writebacks_queued(mq->bg_work)) >=
- percent_to_target(mq, CLEAN_TARGET);
+ /*
+ * If we're busy we don't worry about cleaning at all.
+ */
+ return true;
}
-static bool free_target_met(struct smq_policy *mq, bool idle)
+static bool free_target_met(struct smq_policy *mq)
{
unsigned nr_free;
- if (!idle)
- return true;
-
nr_free = from_cblock(mq->cache_size) - mq->cache_alloc.nr_allocated;
return (nr_free + btracker_nr_demotions_queued(mq->bg_work)) >=
percent_to_target(mq, FREE_TARGET);
@@ -1190,9 +1186,9 @@ static void queue_demotion(struct smq_policy *mq)
if (unlikely(WARN_ON_ONCE(!mq->migrations_allowed)))
return;
- e = q_peek(&mq->clean, mq->clean.nr_levels, true);
+ e = q_peek(&mq->clean, mq->clean.nr_levels / 2, true);
if (!e) {
- if (!clean_target_met(mq, false))
+ if (!clean_target_met(mq, true))
queue_writeback(mq);
return;
}
@@ -1220,7 +1216,7 @@ static void queue_promotion(struct smq_policy *mq, dm_oblock_t oblock,
* We always claim to be 'idle' to ensure some demotions happen
* with continuous loads.
*/
- if (!free_target_met(mq, true))
+ if (!free_target_met(mq))
queue_demotion(mq);
return;
}
@@ -1421,14 +1417,10 @@ static int smq_get_background_work(struct dm_cache_policy *p, bool idle,
spin_lock_irqsave(&mq->lock, flags);
r = btracker_issue(mq->bg_work, result);
if (r == -ENODATA) {
- /* find some writeback work to do */
- if (mq->migrations_allowed && !free_target_met(mq, idle))
- queue_demotion(mq);
-
- else if (!clean_target_met(mq, idle))
+ if (!clean_target_met(mq, idle)) {
queue_writeback(mq);
-
- r = btracker_issue(mq->bg_work, result);
+ r = btracker_issue(mq->bg_work, result);
+ }
}
spin_unlock_irqrestore(&mq->lock, flags);
@@ -1452,6 +1444,7 @@ static void __complete_background_work(struct smq_policy *mq,
clear_pending(mq, e);
if (success) {
e->oblock = work->oblock;
+ e->level = NR_CACHE_LEVELS - 1;
push(mq, e);
// h, q, a
} else {
diff --git a/drivers/md/dm-cache-target.c b/drivers/md/dm-cache-target.c
index 1db375f50a13..d682a0511381 100644
--- a/drivers/md/dm-cache-target.c
+++ b/drivers/md/dm-cache-target.c
@@ -94,6 +94,9 @@ static void iot_io_begin(struct io_tracker *iot, sector_t len)
static void __iot_io_end(struct io_tracker *iot, sector_t len)
{
+ if (!len)
+ return;
+
iot->in_flight -= len;
if (!iot->in_flight)
iot->idle_time = jiffies;
@@ -474,7 +477,7 @@ struct cache {
spinlock_t invalidation_lock;
struct list_head invalidation_requests;
- struct io_tracker origin_tracker;
+ struct io_tracker tracker;
struct work_struct commit_ws;
struct batcher committer;
@@ -901,8 +904,7 @@ static dm_oblock_t get_bio_block(struct cache *cache, struct bio *bio)
static bool accountable_bio(struct cache *cache, struct bio *bio)
{
- return ((bio->bi_bdev == cache->origin_dev->bdev) &&
- bio_op(bio) != REQ_OP_DISCARD);
+ return bio_op(bio) != REQ_OP_DISCARD;
}
static void accounted_begin(struct cache *cache, struct bio *bio)
@@ -912,7 +914,7 @@ static void accounted_begin(struct cache *cache, struct bio *bio)
if (accountable_bio(cache, bio)) {
pb->len = bio_sectors(bio);
- iot_io_begin(&cache->origin_tracker, pb->len);
+ iot_io_begin(&cache->tracker, pb->len);
}
}
@@ -921,7 +923,7 @@ static void accounted_complete(struct cache *cache, struct bio *bio)
size_t pb_data_size = get_per_bio_data_size(cache);
struct per_bio_data *pb = get_per_bio_data(bio, pb_data_size);
- iot_io_end(&cache->origin_tracker, pb->len);
+ iot_io_end(&cache->tracker, pb->len);
}
static void accounted_request(struct cache *cache, struct bio *bio)
@@ -1716,20 +1718,19 @@ static int invalidate_start(struct cache *cache, dm_cblock_t cblock,
enum busy {
IDLE,
- MODERATE,
BUSY
};
static enum busy spare_migration_bandwidth(struct cache *cache)
{
- bool idle = iot_idle_for(&cache->origin_tracker, HZ);
+ bool idle = iot_idle_for(&cache->tracker, HZ);
sector_t current_volume = (atomic_read(&cache->nr_io_migrations) + 1) *
cache->sectors_per_block;
- if (current_volume <= cache->migration_threshold)
- return idle ? IDLE : MODERATE;
+ if (idle && current_volume <= cache->migration_threshold)
+ return IDLE;
else
- return idle ? MODERATE : BUSY;
+ return BUSY;
}
static void inc_hit_counter(struct cache *cache, struct bio *bio)
@@ -2045,8 +2046,6 @@ static void check_migrations(struct work_struct *ws)
for (;;) {
b = spare_migration_bandwidth(cache);
- if (b == BUSY)
- break;
r = policy_get_background_work(cache->policy, b == IDLE, &op);
if (r == -ENODATA)
@@ -2717,7 +2716,7 @@ static int cache_create(struct cache_args *ca, struct cache **result)
batcher_init(&cache->committer, commit_op, cache,
issue_op, cache, cache->wq);
- iot_init(&cache->origin_tracker);
+ iot_init(&cache->tracker);
init_rwsem(&cache->background_work_lock);
prevent_background_work(cache);
@@ -2941,7 +2940,7 @@ static void cache_postsuspend(struct dm_target *ti)
cancel_delayed_work(&cache->waker);
flush_workqueue(cache->wq);
- WARN_ON(cache->origin_tracker.in_flight);
+ WARN_ON(cache->tracker.in_flight);
/*
* If it's a flush suspend there won't be any deferred bios, so this
diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c
index 926a6bcb32c8..3df056b73b66 100644
--- a/drivers/md/dm-mpath.c
+++ b/drivers/md/dm-mpath.c
@@ -447,7 +447,7 @@ failed:
* it has been invoked.
*/
#define dm_report_EIO(m) \
-({ \
+do { \
struct mapped_device *md = dm_table_get_md((m)->ti->table); \
\
pr_debug("%s: returning EIO; QIFNP = %d; SQIFNP = %d; DNFS = %d\n", \
@@ -455,8 +455,7 @@ failed:
test_bit(MPATHF_QUEUE_IF_NO_PATH, &(m)->flags), \
test_bit(MPATHF_SAVED_QUEUE_IF_NO_PATH, &(m)->flags), \
dm_noflush_suspending((m)->ti)); \
- -EIO; \
-})
+} while (0)
/*
* Map cloned requests (request-based multipath)
@@ -481,7 +480,8 @@ static int multipath_clone_and_map(struct dm_target *ti, struct request *rq,
if (!pgpath) {
if (test_bit(MPATHF_QUEUE_IF_NO_PATH, &m->flags))
return DM_MAPIO_DELAY_REQUEUE;
- return dm_report_EIO(m); /* Failed */
+ dm_report_EIO(m); /* Failed */
+ return DM_MAPIO_KILL;
} else if (test_bit(MPATHF_QUEUE_IO, &m->flags) ||
test_bit(MPATHF_PG_INIT_REQUIRED, &m->flags)) {
if (pg_init_all_paths(m))
@@ -558,7 +558,8 @@ static int __multipath_map_bio(struct multipath *m, struct bio *bio, struct dm_m
if (!pgpath) {
if (test_bit(MPATHF_QUEUE_IF_NO_PATH, &m->flags))
return DM_MAPIO_REQUEUE;
- return dm_report_EIO(m);
+ dm_report_EIO(m);
+ return -EIO;
}
mpio->pgpath = pgpath;
@@ -1493,7 +1494,7 @@ static int multipath_end_io(struct dm_target *ti, struct request *clone,
if (atomic_read(&m->nr_valid_paths) == 0 &&
!test_bit(MPATHF_QUEUE_IF_NO_PATH, &m->flags)) {
if (error == -EIO)
- error = dm_report_EIO(m);
+ dm_report_EIO(m);
/* complete with the original error */
r = DM_ENDIO_DONE;
}
@@ -1524,8 +1525,10 @@ static int do_end_io_bio(struct multipath *m, struct bio *clone,
fail_path(mpio->pgpath);
if (atomic_read(&m->nr_valid_paths) == 0 &&
- !test_bit(MPATHF_QUEUE_IF_NO_PATH, &m->flags))
- return dm_report_EIO(m);
+ !test_bit(MPATHF_QUEUE_IF_NO_PATH, &m->flags)) {
+ dm_report_EIO(m);
+ return -EIO;
+ }
/* Queue for the daemon to resubmit */
dm_bio_restore(get_bio_details_from_bio(clone), clone);
diff --git a/drivers/md/dm-rq.c b/drivers/md/dm-rq.c
index 2af27026aa2e..b639fa7246ee 100644
--- a/drivers/md/dm-rq.c
+++ b/drivers/md/dm-rq.c
@@ -507,6 +507,7 @@ static int map_request(struct dm_rq_target_io *tio)
case DM_MAPIO_KILL:
/* The target wants to complete the I/O */
dm_kill_unmapped_request(rq, -EIO);
+ break;
default:
DMWARN("unimplemented target map return value: %d", r);
BUG();
diff --git a/drivers/md/dm-thin-metadata.c b/drivers/md/dm-thin-metadata.c
index 0f0251d0d337..d31d18d9727c 100644
--- a/drivers/md/dm-thin-metadata.c
+++ b/drivers/md/dm-thin-metadata.c
@@ -484,11 +484,11 @@ static int __write_initial_superblock(struct dm_pool_metadata *pmd)
if (r < 0)
return r;
- r = save_sm_roots(pmd);
+ r = dm_tm_pre_commit(pmd->tm);
if (r < 0)
return r;
- r = dm_tm_pre_commit(pmd->tm);
+ r = save_sm_roots(pmd);
if (r < 0)
return r;
diff --git a/drivers/md/persistent-data/dm-space-map-disk.c b/drivers/md/persistent-data/dm-space-map-disk.c
index ebb280a14325..32adf6b4a9c7 100644
--- a/drivers/md/persistent-data/dm-space-map-disk.c
+++ b/drivers/md/persistent-data/dm-space-map-disk.c
@@ -142,10 +142,23 @@ static int sm_disk_inc_block(struct dm_space_map *sm, dm_block_t b)
static int sm_disk_dec_block(struct dm_space_map *sm, dm_block_t b)
{
+ int r;
+ uint32_t old_count;
enum allocation_event ev;
struct sm_disk *smd = container_of(sm, struct sm_disk, sm);
- return sm_ll_dec(&smd->ll, b, &ev);
+ r = sm_ll_dec(&smd->ll, b, &ev);
+ if (!r && (ev == SM_FREE)) {
+ /*
+ * It's only free if it's also free in the last
+ * transaction.
+ */
+ r = sm_ll_lookup(&smd->old_ll, b, &old_count);
+ if (!r && !old_count)
+ smd->nr_allocated_this_transaction--;
+ }
+
+ return r;
}
static int sm_disk_new_block(struct dm_space_map *sm, dm_block_t *b)
diff --git a/drivers/s390/cio/ccwgroup.c b/drivers/s390/cio/ccwgroup.c
index e443b0d0b236..34b9ad6b3143 100644
--- a/drivers/s390/cio/ccwgroup.c
+++ b/drivers/s390/cio/ccwgroup.c
@@ -35,7 +35,7 @@ static struct bus_type ccwgroup_bus_type;
static void __ccwgroup_remove_symlinks(struct ccwgroup_device *gdev)
{
int i;
- char str[8];
+ char str[16];
for (i = 0; i < gdev->count; i++) {
sprintf(str, "cdev%d", i);
@@ -238,7 +238,7 @@ static void ccwgroup_release(struct device *dev)
static int __ccwgroup_create_symlinks(struct ccwgroup_device *gdev)
{
- char str[8];
+ char str[16];
int i, rc;
for (i = 0; i < gdev->count; i++) {
diff --git a/drivers/s390/cio/qdio_debug.h b/drivers/s390/cio/qdio_debug.h
index f33ce8577619..1d595d17bf11 100644
--- a/drivers/s390/cio/qdio_debug.h
+++ b/drivers/s390/cio/qdio_debug.h
@@ -11,7 +11,7 @@
#include "qdio.h"
/* that gives us 15 characters in the text event views */
-#define QDIO_DBF_LEN 16
+#define QDIO_DBF_LEN 32
extern debug_info_t *qdio_dbf_setup;
extern debug_info_t *qdio_dbf_error;
diff --git a/drivers/s390/virtio/virtio_ccw.c b/drivers/s390/virtio/virtio_ccw.c
index 2a76ea78a0bf..b18fe2014cf2 100644
--- a/drivers/s390/virtio/virtio_ccw.c
+++ b/drivers/s390/virtio/virtio_ccw.c
@@ -87,7 +87,7 @@ struct vq_info_block {
} __packed;
struct virtio_feature_desc {
- __u32 features;
+ __le32 features;
__u8 index;
} __packed;
diff --git a/kernel/fork.c b/kernel/fork.c
index 06d759ab4c62..aa1076c5e4a9 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -1845,11 +1845,13 @@ static __latent_entropy struct task_struct *copy_process(
*/
recalc_sigpending();
if (signal_pending(current)) {
- spin_unlock(&current->sighand->siglock);
- write_unlock_irq(&tasklist_lock);
retval = -ERESTARTNOINTR;
goto bad_fork_cancel_cgroup;
}
+ if (unlikely(!(ns_of_pid(pid)->nr_hashed & PIDNS_HASH_ADDING))) {
+ retval = -ENOMEM;
+ goto bad_fork_cancel_cgroup;
+ }
if (likely(p->pid)) {
ptrace_init_task(p, (clone_flags & CLONE_PTRACE) || trace);
@@ -1907,6 +1909,8 @@ static __latent_entropy struct task_struct *copy_process(
return p;
bad_fork_cancel_cgroup:
+ spin_unlock(&current->sighand->siglock);
+ write_unlock_irq(&tasklist_lock);
cgroup_cancel_fork(p);
bad_fork_free_pid:
cgroup_threadgroup_change_end(current);
diff --git a/kernel/pid_namespace.c b/kernel/pid_namespace.c
index d1f3e9f558b8..74a5a7255b4d 100644
--- a/kernel/pid_namespace.c
+++ b/kernel/pid_namespace.c
@@ -277,7 +277,7 @@ void zap_pid_ns_processes(struct pid_namespace *pid_ns)
* if reparented.
*/
for (;;) {
- set_current_state(TASK_UNINTERRUPTIBLE);
+ set_current_state(TASK_INTERRUPTIBLE);
if (pid_ns->nr_hashed == init_pids)
break;
schedule();
diff --git a/scripts/Makefile.headersinst b/scripts/Makefile.headersinst
index 6ba97a1f9c5a..ce753a408c56 100644
--- a/scripts/Makefile.headersinst
+++ b/scripts/Makefile.headersinst
@@ -8,6 +8,29 @@
#
# ==========================================================================
+PHONY := __headers
+__headers:
+
+include scripts/Kbuild.include
+
+srcdir := $(srctree)/$(obj)
+subdirs := $(patsubst $(srcdir)/%/.,%,$(wildcard $(srcdir)/*/.))
+# caller may set destination dir (when installing to asm/)
+_dst := $(if $(dst),$(dst),$(obj))
+
+# Recursion
+__headers: $(subdirs)
+
+.PHONY: $(subdirs)
+$(subdirs):
+ $(Q)$(MAKE) $(hdr-inst)=$(obj)/$@ dst=$(_dst)/$@
+
+# Skip header install/check for include/uapi and arch/$(hdr-arch)/include/uapi.
+# We have only sub-directories there.
+skip-inst := $(if $(filter %/uapi,$(obj)),1)
+
+ifeq ($(skip-inst),)
+
# generated header directory
gen := $(if $(gen),$(gen),$(subst include/,include/generated/,$(obj)))
@@ -15,21 +38,14 @@ gen := $(if $(gen),$(gen),$(subst include/,include/generated/,$(obj)))
kbuild-file := $(srctree)/$(obj)/Kbuild
-include $(kbuild-file)
-# called may set destination dir (when installing to asm/)
-_dst := $(if $(dst),$(dst),$(obj))
-
old-kbuild-file := $(srctree)/$(subst uapi/,,$(obj))/Kbuild
ifneq ($(wildcard $(old-kbuild-file)),)
include $(old-kbuild-file)
endif
-include scripts/Kbuild.include
-
installdir := $(INSTALL_HDR_PATH)/$(subst uapi/,,$(_dst))
-srcdir := $(srctree)/$(obj)
gendir := $(objtree)/$(gen)
-subdirs := $(patsubst $(srcdir)/%/.,%,$(wildcard $(srcdir)/*/.))
header-files := $(notdir $(wildcard $(srcdir)/*.h))
header-files += $(notdir $(wildcard $(srcdir)/*.agh))
header-files := $(filter-out $(no-export-headers), $(header-files))
@@ -88,11 +104,9 @@ quiet_cmd_check = CHECK $(printdir) ($(words $(all-files)) files)
$(PERL) $< $(INSTALL_HDR_PATH)/include $(SRCARCH); \
touch $@
-PHONY += __headersinst __headerscheck
-
ifndef HDRCHECK
# Rules for installing headers
-__headersinst: $(subdirs) $(install-file)
+__headers: $(install-file)
@:
targets += $(install-file)
@@ -104,7 +118,7 @@ $(install-file): scripts/headers_install.sh \
$(call if_changed,install)
else
-__headerscheck: $(subdirs) $(check-file)
+__headers: $(check-file)
@:
targets += $(check-file)
@@ -113,11 +127,6 @@ $(check-file): scripts/headers_check.pl $(output-files) FORCE
endif
-# Recursion
-.PHONY: $(subdirs)
-$(subdirs):
- $(Q)$(MAKE) $(hdr-inst)=$(obj)/$@ dst=$(_dst)/$@
-
targets := $(wildcard $(sort $(targets)))
cmd_files := $(wildcard \
$(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
@@ -126,6 +135,8 @@ ifneq ($(cmd_files),)
include $(cmd_files)
endif
+endif # skip-inst
+
.PHONY: $(PHONY)
PHONY += FORCE
FORCE: ;