Merge branch 'akpm' (patches from Andrew)

Merge misc updates from Andrew Morton:

 - a few random little subsystems

 - almost all of the MM patches which are staged ahead of linux-next
   material. I'll trickle to post-linux-next work in as the dependents
   get merged up.

Subsystems affected by this patch series: kthread, kbuild, ide, ntfs,
ocfs2, arch, and mm (slab-generic, slab, slub, dax, debug, pagecache,
gup, swap, shmem, memcg, pagemap, mremap, hmm, vmalloc, documentation,
kasan, pagealloc, memory-failure, hugetlb, vmscan, z3fold, compaction,
oom-kill, migration, cma, page-poison, userfaultfd, zswap, zsmalloc,
uaccess, zram, and cleanups).

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (200 commits)
  mm: cleanup kstrto*() usage
  mm: fix fall-through warnings for Clang
  mm: slub: convert sysfs sprintf family to sysfs_emit/sysfs_emit_at
  mm: shmem: convert shmem_enabled_show to use sysfs_emit_at
  mm:backing-dev: use sysfs_emit in macro defining functions
  mm: huge_memory: convert remaining use of sprintf to sysfs_emit and neatening
  mm: use sysfs_emit for struct kobject * uses
  mm: fix kernel-doc markups
  zram: break the strict dependency from lzo
  zram: add stat to gather incompressible pages since zram set up
  zram: support page writeback
  mm/process_vm_access: remove redundant initialization of iov_r
  mm/zsmalloc.c: rework the list_add code in insert_zspage()
  mm/zswap: move to use crypto_acomp API for hardware acceleration
  mm/zswap: fix passing zero to 'PTR_ERR' warning
  mm/zswap: make struct kernel_param_ops definitions const
  userfaultfd/selftests: hint the test runner on required privilege
  userfaultfd/selftests: fix retval check for userfaultfd_open()
  userfaultfd/selftests: always dump something in modes
  userfaultfd: selftests: make __{s,u}64 format specifiers portable
  ...

1 files changed, 25 insertions, 25 deletions

diff --git a/mm/ksm.c b/mm/ksm.c
index 0960750bb316..9694ee2c71de 100644
--- a/mm/ksm.c
+++ b/mm/ksm.c
@@ -2833,18 +2833,18 @@ static void wait_while_offlining(void)
 static ssize_t sleep_millisecs_show(struct kobject *kobj,
 				    struct kobj_attribute *attr, char *buf)
 {
-	return sprintf(buf, "%u\n", ksm_thread_sleep_millisecs);
+	return sysfs_emit(buf, "%u\n", ksm_thread_sleep_millisecs);
 }
 
 static ssize_t sleep_millisecs_store(struct kobject *kobj,
 				     struct kobj_attribute *attr,
 				     const char *buf, size_t count)
 {
-	unsigned long msecs;
+	unsigned int msecs;
 	int err;
 
-	err = kstrtoul(buf, 10, &msecs);
-	if (err || msecs > UINT_MAX)
+	err = kstrtouint(buf, 10, &msecs);
+	if (err)
 		return -EINVAL;
 
 	ksm_thread_sleep_millisecs = msecs;
@@ -2857,18 +2857,18 @@ KSM_ATTR(sleep_millisecs);
 static ssize_t pages_to_scan_show(struct kobject *kobj,
 				  struct kobj_attribute *attr, char *buf)
 {
-	return sprintf(buf, "%u\n", ksm_thread_pages_to_scan);
+	return sysfs_emit(buf, "%u\n", ksm_thread_pages_to_scan);
 }
 
 static ssize_t pages_to_scan_store(struct kobject *kobj,
 				   struct kobj_attribute *attr,
 				   const char *buf, size_t count)
 {
+	unsigned int nr_pages;
 	int err;
-	unsigned long nr_pages;
 
-	err = kstrtoul(buf, 10, &nr_pages);
-	if (err || nr_pages > UINT_MAX)
+	err = kstrtouint(buf, 10, &nr_pages);
+	if (err)
 		return -EINVAL;
 
 	ksm_thread_pages_to_scan = nr_pages;
@@ -2880,17 +2880,17 @@ KSM_ATTR(pages_to_scan);
 static ssize_t run_show(struct kobject *kobj, struct kobj_attribute *attr,
 			char *buf)
 {
-	return sprintf(buf, "%lu\n", ksm_run);
+	return sysfs_emit(buf, "%lu\n", ksm_run);
 }
 
 static ssize_t run_store(struct kobject *kobj, struct kobj_attribute *attr,
 			 const char *buf, size_t count)
 {
+	unsigned int flags;
 	int err;
-	unsigned long flags;
 
-	err = kstrtoul(buf, 10, &flags);
-	if (err || flags > UINT_MAX)
+	err = kstrtouint(buf, 10, &flags);
+	if (err)
 		return -EINVAL;
 	if (flags > KSM_RUN_UNMERGE)
 		return -EINVAL;
@@ -2927,9 +2927,9 @@ KSM_ATTR(run);
 
 #ifdef CONFIG_NUMA
 static ssize_t merge_across_nodes_show(struct kobject *kobj,
-				struct kobj_attribute *attr, char *buf)
+				       struct kobj_attribute *attr, char *buf)
 {
-	return sprintf(buf, "%u\n", ksm_merge_across_nodes);
+	return sysfs_emit(buf, "%u\n", ksm_merge_across_nodes);
 }
 
 static ssize_t merge_across_nodes_store(struct kobject *kobj,
@@ -2984,9 +2984,9 @@ KSM_ATTR(merge_across_nodes);
 #endif
 
 static ssize_t use_zero_pages_show(struct kobject *kobj,
-				struct kobj_attribute *attr, char *buf)
+				   struct kobj_attribute *attr, char *buf)
 {
-	return sprintf(buf, "%u\n", ksm_use_zero_pages);
+	return sysfs_emit(buf, "%u\n", ksm_use_zero_pages);
 }
 static ssize_t use_zero_pages_store(struct kobject *kobj,
 				   struct kobj_attribute *attr,
@@ -3008,7 +3008,7 @@ KSM_ATTR(use_zero_pages);
 static ssize_t max_page_sharing_show(struct kobject *kobj,
 				     struct kobj_attribute *attr, char *buf)
 {
-	return sprintf(buf, "%u\n", ksm_max_page_sharing);
+	return sysfs_emit(buf, "%u\n", ksm_max_page_sharing);
 }
 
 static ssize_t max_page_sharing_store(struct kobject *kobj,
@@ -3049,21 +3049,21 @@ KSM_ATTR(max_page_sharing);
 static ssize_t pages_shared_show(struct kobject *kobj,
 				 struct kobj_attribute *attr, char *buf)
 {
-	return sprintf(buf, "%lu\n", ksm_pages_shared);
+	return sysfs_emit(buf, "%lu\n", ksm_pages_shared);
 }
 KSM_ATTR_RO(pages_shared);
 
 static ssize_t pages_sharing_show(struct kobject *kobj,
 				  struct kobj_attribute *attr, char *buf)
 {
-	return sprintf(buf, "%lu\n", ksm_pages_sharing);
+	return sysfs_emit(buf, "%lu\n", ksm_pages_sharing);
 }
 KSM_ATTR_RO(pages_sharing);
 
 static ssize_t pages_unshared_show(struct kobject *kobj,
 				   struct kobj_attribute *attr, char *buf)
 {
-	return sprintf(buf, "%lu\n", ksm_pages_unshared);
+	return sysfs_emit(buf, "%lu\n", ksm_pages_unshared);
 }
 KSM_ATTR_RO(pages_unshared);
 
@@ -3080,21 +3080,21 @@ static ssize_t pages_volatile_show(struct kobject *kobj,
 	 */
 	if (ksm_pages_volatile < 0)
 		ksm_pages_volatile = 0;
-	return sprintf(buf, "%ld\n", ksm_pages_volatile);
+	return sysfs_emit(buf, "%ld\n", ksm_pages_volatile);
 }
 KSM_ATTR_RO(pages_volatile);
 
 static ssize_t stable_node_dups_show(struct kobject *kobj,
 				     struct kobj_attribute *attr, char *buf)
 {
-	return sprintf(buf, "%lu\n", ksm_stable_node_dups);
+	return sysfs_emit(buf, "%lu\n", ksm_stable_node_dups);
 }
 KSM_ATTR_RO(stable_node_dups);
 
 static ssize_t stable_node_chains_show(struct kobject *kobj,
 				       struct kobj_attribute *attr, char *buf)
 {
-	return sprintf(buf, "%lu\n", ksm_stable_node_chains);
+	return sysfs_emit(buf, "%lu\n", ksm_stable_node_chains);
 }
 KSM_ATTR_RO(stable_node_chains);
 
@@ -3103,7 +3103,7 @@ stable_node_chains_prune_millisecs_show(struct kobject *kobj,
 					struct kobj_attribute *attr,
 					char *buf)
 {
-	return sprintf(buf, "%u\n", ksm_stable_node_chains_prune_millisecs);
+	return sysfs_emit(buf, "%u\n", ksm_stable_node_chains_prune_millisecs);
 }
 
 static ssize_t
@@ -3127,7 +3127,7 @@ KSM_ATTR(stable_node_chains_prune_millisecs);
 static ssize_t full_scans_show(struct kobject *kobj,
 			       struct kobj_attribute *attr, char *buf)
 {
-	return sprintf(buf, "%lu\n", ksm_scan.seqnr);
+	return sysfs_emit(buf, "%lu\n", ksm_scan.seqnr);
 }
 KSM_ATTR_RO(full_scans);