Merge branch 'akpm' (patches from Andrew)

Merge misc updates from Andrew Morton:

 - a few MM hotfixes

 - kthread, tools, scripts, ntfs and ocfs2

 - some of MM

Subsystems affected by this patch series: kthread, tools, scripts, ntfs,
ocfs2 and mm (hofixes, pagealloc, slab-generic, slab, slub, kcsan,
debug, pagecache, gup, swap, shmem, memcg, pagemap, mremap, mincore,
sparsemem, vmalloc, kasan, pagealloc, hugetlb and vmscan).

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (162 commits)
  mm: vmscan: consistent update to pgrefill
  mm/vmscan.c: fix typo
  khugepaged: khugepaged_test_exit() check mmget_still_valid()
  khugepaged: retract_page_tables() remember to test exit
  khugepaged: collapse_pte_mapped_thp() protect the pmd lock
  khugepaged: collapse_pte_mapped_thp() flush the right range
  mm/hugetlb: fix calculation of adjust_range_if_pmd_sharing_possible
  mm: thp: replace HTTP links with HTTPS ones
  mm/page_alloc: fix memalloc_nocma_{save/restore} APIs
  mm/page_alloc.c: skip setting nodemask when we are in interrupt
  mm/page_alloc: fallbacks at most has 3 elements
  mm/page_alloc: silence a KASAN false positive
  mm/page_alloc.c: remove unnecessary end_bitidx for [set|get]_pfnblock_flags_mask()
  mm/page_alloc.c: simplify pageblock bitmap access
  mm/page_alloc.c: extract the common part in pfn_to_bitidx()
  mm/page_alloc.c: replace the definition of NR_MIGRATETYPE_BITS with PB_migratetype_bits
  mm/shuffle: remove dynamic reconfiguration
  mm/memory_hotplug: document why shuffle_zone() is relevant
  mm/page_alloc: remove nr_free_pagecache_pages()
  mm: remove vm_total_pages
  ...

4 files changed, 11 insertions, 11 deletions

diff --git a/fs/cifs/cifsencrypt.c b/fs/cifs/cifsencrypt.c
index 874a551f339c..9daa256f69d4 100644
--- a/fs/cifs/cifsencrypt.c
+++ b/fs/cifs/cifsencrypt.c
@@ -797,7 +797,7 @@ calc_seckey(struct cifs_ses *ses)
 	ses->auth_key.len = CIFS_SESS_KEY_SIZE;
 
 	memzero_explicit(sec_key, CIFS_SESS_KEY_SIZE);
-	kzfree(ctx_arc4);
+	kfree_sensitive(ctx_arc4);
 	return 0;
 }
 
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 7e3e5e2098eb..0ad1309e88d3 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -2183,7 +2183,7 @@ cifs_parse_mount_options(const char *mountdata, const char *devname,
 			tmp_end++;
 			if (!(tmp_end < end && tmp_end[1] == delim)) {
 				/* No it is not. Set the password to NULL */
-				kzfree(vol->password);
+				kfree_sensitive(vol->password);
 				vol->password = NULL;
 				break;
 			}
@@ -2221,7 +2221,7 @@ cifs_parse_mount_options(const char *mountdata, const char *devname,
 					options = end;
 			}
 
-			kzfree(vol->password);
+			kfree_sensitive(vol->password);
 			/* Now build new password string */
 			temp_len = strlen(value);
 			vol->password = kzalloc(temp_len+1, GFP_KERNEL);
@@ -3199,7 +3199,7 @@ cifs_set_cifscreds(struct smb_vol *vol, struct cifs_ses *ses)
 			rc = -ENOMEM;
 			kfree(vol->username);
 			vol->username = NULL;
-			kzfree(vol->password);
+			kfree_sensitive(vol->password);
 			vol->password = NULL;
 			goto out_key_put;
 		}
@@ -4220,7 +4220,7 @@ void
 cifs_cleanup_volume_info_contents(struct smb_vol *volume_info)
 {
 	kfree(volume_info->username);
-	kzfree(volume_info->password);
+	kfree_sensitive(volume_info->password);
 	kfree(volume_info->UNC);
 	kfree(volume_info->domainname);
 	kfree(volume_info->iocharset);
@@ -5339,7 +5339,7 @@ cifs_construct_tcon(struct cifs_sb_info *cifs_sb, kuid_t fsuid)
 
 out:
 	kfree(vol_info->username);
-	kzfree(vol_info->password);
+	kfree_sensitive(vol_info->password);
 	kfree(vol_info);
 
 	return tcon;
diff --git a/fs/cifs/dfs_cache.c b/fs/cifs/dfs_cache.c
index a44f58bbf7ab..6ee849698962 100644
--- a/fs/cifs/dfs_cache.c
+++ b/fs/cifs/dfs_cache.c
@@ -1191,7 +1191,7 @@ err_free_domainname:
 err_free_unc:
 	kfree(new->UNC);
 err_free_password:
-	kzfree(new->password);
+	kfree_sensitive(new->password);
 err_free_username:
 	kfree(new->username);
 	kfree(new);
diff --git a/fs/cifs/misc.c b/fs/cifs/misc.c
index 764234803071..1c14cf01dbef 100644
--- a/fs/cifs/misc.c
+++ b/fs/cifs/misc.c
@@ -103,12 +103,12 @@ sesInfoFree(struct cifs_ses *buf_to_free)
 	kfree(buf_to_free->serverOS);
 	kfree(buf_to_free->serverDomain);
 	kfree(buf_to_free->serverNOS);
-	kzfree(buf_to_free->password);
+	kfree_sensitive(buf_to_free->password);
 	kfree(buf_to_free->user_name);
 	kfree(buf_to_free->domainName);
-	kzfree(buf_to_free->auth_key.response);
+	kfree_sensitive(buf_to_free->auth_key.response);
 	kfree(buf_to_free->iface_list);
-	kzfree(buf_to_free);
+	kfree_sensitive(buf_to_free);
 }
 
 struct cifs_tcon *
@@ -148,7 +148,7 @@ tconInfoFree(struct cifs_tcon *buf_to_free)
 	}
 	atomic_dec(&tconInfoAllocCount);
 	kfree(buf_to_free->nativeFileSystem);
-	kzfree(buf_to_free->password);
+	kfree_sensitive(buf_to_free->password);
 	kfree(buf_to_free->crfid.fid);
 #ifdef CONFIG_CIFS_DFS_UPCALL
 	kfree(buf_to_free->dfs_path);