13 files changed, 99 insertions, 71 deletions

diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig
index dd301be89ecc..5376d908eabe 100644
--- a/arch/arm64/configs/defconfig
+++ b/arch/arm64/configs/defconfig
@@ -1,6 +1,7 @@
 # CONFIG_LOCALVERSION_AUTO is not set
 CONFIG_SYSVIPC=y
 CONFIG_POSIX_MQUEUE=y
+CONFIG_FHANDLE=y
 CONFIG_AUDIT=y
 CONFIG_NO_HZ_IDLE=y
 CONFIG_HIGH_RES_TIMERS=y
@@ -13,14 +14,12 @@ CONFIG_TASK_IO_ACCOUNTING=y
 CONFIG_IKCONFIG=y
 CONFIG_IKCONFIG_PROC=y
 CONFIG_LOG_BUF_SHIFT=14
-CONFIG_RESOURCE_COUNTERS=y
 CONFIG_MEMCG=y
 CONFIG_MEMCG_SWAP=y
 CONFIG_MEMCG_KMEM=y
 CONFIG_CGROUP_HUGETLB=y
 # CONFIG_UTS_NS is not set
 # CONFIG_IPC_NS is not set
-# CONFIG_PID_NS is not set
 # CONFIG_NET_NS is not set
 CONFIG_SCHED_AUTOGROUP=y
 CONFIG_BLK_DEV_INITRD=y
@@ -92,7 +91,6 @@ CONFIG_SERIAL_AMBA_PL011_CONSOLE=y
 CONFIG_SERIAL_OF_PLATFORM=y
 CONFIG_VIRTIO_CONSOLE=y
 # CONFIG_HW_RANDOM is not set
-# CONFIG_HMC_DRV is not set
 CONFIG_SPI=y
 CONFIG_SPI_PL022=y
 CONFIG_GPIO_PL061=y
@@ -133,6 +131,8 @@ CONFIG_EXT3_FS=y
 CONFIG_EXT4_FS=y
 CONFIG_FANOTIFY=y
 CONFIG_FANOTIFY_ACCESS_PERMISSIONS=y
+CONFIG_QUOTA=y
+CONFIG_AUTOFS4_FS=y
 CONFIG_FUSE_FS=y
 CONFIG_CUSE=y
 CONFIG_VFAT_FS=y
@@ -152,14 +152,15 @@ CONFIG_MAGIC_SYSRQ=y
 CONFIG_DEBUG_KERNEL=y
 CONFIG_LOCKUP_DETECTOR=y
 # CONFIG_SCHED_DEBUG is not set
+# CONFIG_DEBUG_PREEMPT is not set
 # CONFIG_FTRACE is not set
+CONFIG_KEYS=y
 CONFIG_SECURITY=y
 CONFIG_CRYPTO_ANSI_CPRNG=y
 CONFIG_ARM64_CRYPTO=y
 CONFIG_CRYPTO_SHA1_ARM64_CE=y
 CONFIG_CRYPTO_SHA2_ARM64_CE=y
 CONFIG_CRYPTO_GHASH_ARM64_CE=y
-CONFIG_CRYPTO_AES_ARM64_CE=y
 CONFIG_CRYPTO_AES_ARM64_CE_CCM=y
 CONFIG_CRYPTO_AES_ARM64_CE_BLK=y
 CONFIG_CRYPTO_AES_ARM64_NEON_BLK=y
diff --git a/arch/arm64/include/asm/dma-mapping.h b/arch/arm64/include/asm/dma-mapping.h
index d34189bceff7..9ce3e680ae1c 100644
--- a/arch/arm64/include/asm/dma-mapping.h
+++ b/arch/arm64/include/asm/dma-mapping.h
@@ -52,13 +52,14 @@ static inline void set_dma_ops(struct device *dev, struct dma_map_ops *ops)
         dev->archdata.dma_ops = ops;
 }
 
-static inline int set_arch_dma_coherent_ops(struct device *dev)
+static inline void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
+                                      struct iommu_ops *iommu, bool coherent)
 {
-        dev->archdata.dma_coherent = true;
-        set_dma_ops(dev, &coherent_swiotlb_dma_ops);
-        return 0;
+        dev->archdata.dma_coherent = coherent;
+        if (coherent)
+                set_dma_ops(dev, &coherent_swiotlb_dma_ops);
 }
-#define set_arch_dma_coherent_ops       set_arch_dma_coherent_ops
+#define arch_setup_dma_ops      arch_setup_dma_ops
 
 /* do not use this function in a driver */
 static inline bool is_device_dma_coherent(struct device *dev)
diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h
index df22314f57cf..210d632aa5ad 100644
--- a/arch/arm64/include/asm/pgtable.h
+++ b/arch/arm64/include/asm/pgtable.h
@@ -298,7 +298,6 @@ void pmdp_splitting_flush(struct vm_area_struct *vma, unsigned long address,
 #define pfn_pmd(pfn,prot)       (__pmd(((phys_addr_t)(pfn) << PAGE_SHIFT) | pgprot_val(prot)))
 #define mk_pmd(page,prot)       pfn_pmd(page_to_pfn(page),prot)
 
-#define pmd_page(pmd)           pfn_to_page(__phys_to_pfn(pmd_val(pmd) & PHYS_MASK))
 #define pud_write(pud)          pte_write(pud_pte(pud))
 #define pud_pfn(pud)            (((pud_val(pud) & PUD_MASK) & PHYS_MASK) >> PAGE_SHIFT)
 
@@ -401,7 +400,7 @@ static inline pmd_t *pmd_offset(pud_t *pud, unsigned long addr)
         return (pmd_t *)pud_page_vaddr(*pud) + pmd_index(addr);
 }
 
-#define pud_page(pud)           pmd_page(pud_pmd(pud))
+#define pud_page(pud)           pfn_to_page(__phys_to_pfn(pud_val(pud) & PHYS_MASK))
 
 #endif  /* CONFIG_ARM64_PGTABLE_LEVELS > 2 */
 
@@ -437,6 +436,8 @@ static inline pud_t *pud_offset(pgd_t *pgd, unsigned long addr)
         return (pud_t *)pgd_page_vaddr(*pgd) + pud_index(addr);
 }
 
+#define pgd_page(pgd)           pfn_to_page(__phys_to_pfn(pgd_val(pgd) & PHYS_MASK))
+
 #endif  /* CONFIG_ARM64_PGTABLE_LEVELS > 3 */
 
 #define pgd_ERROR(pgd)          __pgd_error(__FILE__, __LINE__, pgd_val(pgd))
diff --git a/arch/arm64/kernel/suspend.c b/arch/arm64/kernel/suspend.c
index 3771b72b6569..2d6b6065fe7f 100644
--- a/arch/arm64/kernel/suspend.c
+++ b/arch/arm64/kernel/suspend.c
@@ -5,6 +5,7 @@
 #include <asm/debug-monitors.h>
 #include <asm/pgtable.h>
 #include <asm/memory.h>
+#include <asm/mmu_context.h>
 #include <asm/smp_plat.h>
 #include <asm/suspend.h>
 #include <asm/tlbflush.h>
@@ -98,7 +99,18 @@ int __cpu_suspend(unsigned long arg, int (*fn)(unsigned long))
          */
         ret = __cpu_suspend_enter(arg, fn);
         if (ret == 0) {
-                cpu_switch_mm(mm->pgd, mm);
+                /*
+                 * We are resuming from reset with TTBR0_EL1 set to the
+                 * idmap to enable the MMU; restore the active_mm mappings in
+                 * TTBR0_EL1 unless the active_mm == &init_mm, in which case
+                 * the thread entered __cpu_suspend with TTBR0_EL1 set to
+                 * reserved TTBR0 page tables and should be restored as such.
+                 */
+                if (mm == &init_mm)
+                        cpu_set_reserved_ttbr0();
+                else
+                        cpu_switch_mm(mm->pgd, mm);
+
                 flush_tlb_all();
 
                 /*
diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c
index 5fa83f751378..6b65fa4e0c55 100644
--- a/drivers/char/ipmi/ipmi_msghandler.c
+++ b/drivers/char/ipmi/ipmi_msghandler.c
@@ -199,18 +199,6 @@ struct bmc_device {
         int                    guid_set;
         char                   name[16];
         struct kref            usecount;
-
-        /* bmc device attributes */
-        struct device_attribute device_id_attr;
-        struct device_attribute provides_dev_sdrs_attr;
-        struct device_attribute revision_attr;
-        struct device_attribute firmware_rev_attr;
-        struct device_attribute version_attr;
-        struct device_attribute add_dev_support_attr;
-        struct device_attribute manufacturer_id_attr;
-        struct device_attribute product_id_attr;
-        struct device_attribute guid_attr;
-        struct device_attribute aux_firmware_rev_attr;
 };
 #define to_bmc_device(x) container_of((x), struct bmc_device, pdev.dev)
 
@@ -2252,7 +2240,7 @@ static ssize_t device_id_show(struct device *dev,
 
         return snprintf(buf, 10, "%u\n", bmc->id.device_id);
 }
-DEVICE_ATTR(device_id, S_IRUGO, device_id_show, NULL);
+static DEVICE_ATTR(device_id, S_IRUGO, device_id_show, NULL);
 
 static ssize_t provides_device_sdrs_show(struct device *dev,
                                          struct device_attribute *attr,
@@ -2263,7 +2251,8 @@ static ssize_t provides_device_sdrs_show(struct device *dev,
         return snprintf(buf, 10, "%u\n",
                         (bmc->id.device_revision & 0x80) >> 7);
 }
-DEVICE_ATTR(provides_device_sdrs, S_IRUGO, provides_device_sdrs_show, NULL);
+static DEVICE_ATTR(provides_device_sdrs, S_IRUGO, provides_device_sdrs_show,
+                   NULL);
 
 static ssize_t revision_show(struct device *dev, struct device_attribute *attr,
                              char *buf)
@@ -2273,7 +2262,7 @@ static ssize_t revision_show(struct device *dev, struct device_attribute *attr,
         return snprintf(buf, 20, "%u\n",
                         bmc->id.device_revision & 0x0F);
 }
-DEVICE_ATTR(revision, S_IRUGO, revision_show, NULL);
+static DEVICE_ATTR(revision, S_IRUGO, revision_show, NULL);
 
 static ssize_t firmware_revision_show(struct device *dev,
                                       struct device_attribute *attr,
@@ -2284,7 +2273,7 @@ static ssize_t firmware_revision_show(struct device *dev,
         return snprintf(buf, 20, "%u.%x\n", bmc->id.firmware_revision_1,
                         bmc->id.firmware_revision_2);
 }
-DEVICE_ATTR(firmware_revision, S_IRUGO, firmware_revision_show, NULL);
+static DEVICE_ATTR(firmware_revision, S_IRUGO, firmware_revision_show, NULL);
 
 static ssize_t ipmi_version_show(struct device *dev,
                                  struct device_attribute *attr,
@@ -2296,7 +2285,7 @@ static ssize_t ipmi_version_show(struct device *dev,
                         ipmi_version_major(&bmc->id),
                         ipmi_version_minor(&bmc->id));
 }
-DEVICE_ATTR(ipmi_version, S_IRUGO, ipmi_version_show, NULL);
+static DEVICE_ATTR(ipmi_version, S_IRUGO, ipmi_version_show, NULL);
 
 static ssize_t add_dev_support_show(struct device *dev,
                                     struct device_attribute *attr,
@@ -2307,7 +2296,8 @@ static ssize_t add_dev_support_show(struct device *dev,
         return snprintf(buf, 10, "0x%02x\n",
                         bmc->id.additional_device_support);
 }
-DEVICE_ATTR(additional_device_support, S_IRUGO, add_dev_support_show, NULL);
+static DEVICE_ATTR(additional_device_support, S_IRUGO, add_dev_support_show,
+                   NULL);
 
 static ssize_t manufacturer_id_show(struct device *dev,
                                     struct device_attribute *attr,
@@ -2317,7 +2307,7 @@ static ssize_t manufacturer_id_show(struct device *dev,
 
         return snprintf(buf, 20, "0x%6.6x\n", bmc->id.manufacturer_id);
 }
-DEVICE_ATTR(manufacturer_id, S_IRUGO, manufacturer_id_show, NULL);
+static DEVICE_ATTR(manufacturer_id, S_IRUGO, manufacturer_id_show, NULL);
 
 static ssize_t product_id_show(struct device *dev,
                                struct device_attribute *attr,
@@ -2327,7 +2317,7 @@ static ssize_t product_id_show(struct device *dev,
 
         return snprintf(buf, 10, "0x%4.4x\n", bmc->id.product_id);
 }
-DEVICE_ATTR(product_id, S_IRUGO, product_id_show, NULL);
+static DEVICE_ATTR(product_id, S_IRUGO, product_id_show, NULL);
 
 static ssize_t aux_firmware_rev_show(struct device *dev,
                                      struct device_attribute *attr,
@@ -2341,7 +2331,7 @@ static ssize_t aux_firmware_rev_show(struct device *dev,
                         bmc->id.aux_firmware_revision[1],
                         bmc->id.aux_firmware_revision[0]);
 }
-DEVICE_ATTR(aux_firmware_revision, S_IRUGO, aux_firmware_rev_show, NULL);
+static DEVICE_ATTR(aux_firmware_revision, S_IRUGO, aux_firmware_rev_show, NULL);
 
 static ssize_t guid_show(struct device *dev, struct device_attribute *attr,
                          char *buf)
@@ -2352,7 +2342,7 @@ static ssize_t guid_show(struct device *dev, struct device_attribute *attr,
                         (long long) bmc->guid[0],
                         (long long) bmc->guid[8]);
 }
-DEVICE_ATTR(guid, S_IRUGO, guid_show, NULL);
+static DEVICE_ATTR(guid, S_IRUGO, guid_show, NULL);
 
 static struct attribute *bmc_dev_attrs[] = {
         &dev_attr_device_id.attr,
@@ -2392,10 +2382,10 @@ cleanup_bmc_device(struct kref *ref)
 
         if (bmc->id.aux_firmware_revision_set)
                 device_remove_file(&bmc->pdev.dev,
-                                   &bmc->aux_firmware_rev_attr);
+                                   &dev_attr_aux_firmware_revision);
         if (bmc->guid_set)
                 device_remove_file(&bmc->pdev.dev,
-                                   &bmc->guid_attr);
+                                   &dev_attr_guid);
 
         platform_device_unregister(&bmc->pdev);
 }
@@ -2422,16 +2412,14 @@ static int create_bmc_files(struct bmc_device *bmc)
         int err;
 
         if (bmc->id.aux_firmware_revision_set) {
-                bmc->aux_firmware_rev_attr.attr.name = "aux_firmware_revision";
                 err = device_create_file(&bmc->pdev.dev,
-                                   &bmc->aux_firmware_rev_attr);
+                                         &dev_attr_aux_firmware_revision);
                 if (err)
                         goto out;
         }
         if (bmc->guid_set) {
-                bmc->guid_attr.attr.name = "guid";
                 err = device_create_file(&bmc->pdev.dev,
-                                   &bmc->guid_attr);
+                                         &dev_attr_guid);
                 if (err)
                         goto out_aux_firm;
         }
@@ -2441,7 +2429,7 @@ static int create_bmc_files(struct bmc_device *bmc)
 out_aux_firm:
         if (bmc->id.aux_firmware_revision_set)
                 device_remove_file(&bmc->pdev.dev,
-                                   &bmc->aux_firmware_rev_attr);
+                                   &dev_attr_aux_firmware_revision);
 out:
         return err;
 }
diff --git a/drivers/char/ipmi/ipmi_ssif.c b/drivers/char/ipmi/ipmi_ssif.c
index e178ac27e73c..fd5a5e85d7dc 100644
--- a/drivers/char/ipmi/ipmi_ssif.c
+++ b/drivers/char/ipmi/ipmi_ssif.c
@@ -52,6 +52,7 @@
 #include <linux/dmi.h>
 #include <linux/kthread.h>
 #include <linux/acpi.h>
+#include <linux/ctype.h>
 
 #define PFX "ipmi_ssif: "
 #define DEVICE_NAME "ipmi_ssif"
diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
index 8735543eacdb..493478989dbd 100644
--- a/drivers/md/dm-thin.c
+++ b/drivers/md/dm-thin.c
@@ -1127,6 +1127,24 @@ static void schedule_external_copy(struct thin_c *tc, dm_block_t virt_block,
                 schedule_zero(tc, virt_block, data_dest, cell, bio);
 }
 
+static void set_pool_mode(struct pool *pool, enum pool_mode new_mode);
+
+static void check_for_space(struct pool *pool)
+{
+        int r;
+        dm_block_t nr_free;
+
+        if (get_pool_mode(pool) != PM_OUT_OF_DATA_SPACE)
+                return;
+
+        r = dm_pool_get_free_block_count(pool->pmd, &nr_free);
+        if (r)
+                return;
+
+        if (nr_free)
+                set_pool_mode(pool, PM_WRITE);
+}
+
 /*
  * A non-zero return indicates read_only or fail_io mode.
  * Many callers don't care about the return value.
@@ -1141,6 +1159,8 @@ static int commit(struct pool *pool)
         r = dm_pool_commit_metadata(pool->pmd);
         if (r)
                 metadata_operation_failed(pool, "dm_pool_commit_metadata", r);
+        else
+                check_for_space(pool);
 
         return r;
 }
@@ -1159,8 +1179,6 @@ static void check_low_water_mark(struct pool *pool, dm_block_t free_blocks)
         }
 }
 
-static void set_pool_mode(struct pool *pool, enum pool_mode new_mode);
-
 static int alloc_data_block(struct thin_c *tc, dm_block_t *result)
 {
         int r;
@@ -2155,7 +2173,7 @@ static void set_pool_mode(struct pool *pool, enum pool_mode new_mode)
                 pool->process_cell = process_cell_read_only;
                 pool->process_discard_cell = process_discard_cell;
                 pool->process_prepared_mapping = process_prepared_mapping;
-                pool->process_prepared_discard = process_prepared_discard_passdown;
+                pool->process_prepared_discard = process_prepared_discard;
 
                 if (!pool->pf.error_if_no_space && no_space_timeout)
                         queue_delayed_work(pool->wq, &pool->no_space_timeout, no_space_timeout);
@@ -3814,6 +3832,8 @@ static int thin_ctr(struct dm_target *ti, unsigned argc, char **argv)
                 r = -EINVAL;
                 goto bad;
         }
+        atomic_set(&tc->refcount, 1);
+        init_completion(&tc->can_destroy);
         list_add_tail_rcu(&tc->list, &tc->pool->active_thins);
         spin_unlock_irqrestore(&tc->pool->lock, flags);
         /*
@@ -3826,9 +3846,6 @@ static int thin_ctr(struct dm_target *ti, unsigned argc, char **argv)
 
         dm_put(pool_md);
 
-        atomic_set(&tc->refcount, 1);
-        init_completion(&tc->can_destroy);
-
         return 0;
 
 bad:
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 4c06585bf165..b98cd9d84435 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -899,7 +899,7 @@ static void disable_write_same(struct mapped_device *md)
 
 static void clone_endio(struct bio *bio, int error)
 {
-        int r = 0;
+        int r = error;
         struct dm_target_io *tio = container_of(bio, struct dm_target_io, clone);
         struct dm_io *io = tio->io;
         struct mapped_device *md = tio->io->md;
diff --git a/include/linux/audit.h b/include/linux/audit.h
index 0c04917c2f12..af84234e1f6e 100644
--- a/include/linux/audit.h
+++ b/include/linux/audit.h
@@ -47,6 +47,7 @@ struct sk_buff;
 
 struct audit_krule {
         int                     vers_ops;
+        u32                     pflags;
         u32                     flags;
         u32                     listnr;
         u32                     action;
@@ -64,6 +65,9 @@ struct audit_krule {
         u64                     prio;
 };
 
+/* Flag to indicate legacy AUDIT_LOGINUID unset usage */
+#define AUDIT_LOGINUID_LEGACY           0x1
+
 struct audit_field {
         u32                             type;
         union {
diff --git a/kernel/audit.c b/kernel/audit.c
index f8f203e8018c..231b7dcb154b 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -429,7 +429,7 @@ static void kauditd_send_skb(struct sk_buff *skb)
  * This function doesn't consume an skb as might be expected since it has to
  * copy it anyways.
  */
-static void kauditd_send_multicast_skb(struct sk_buff *skb)
+static void kauditd_send_multicast_skb(struct sk_buff *skb, gfp_t gfp_mask)
 {
         struct sk_buff          *copy;
         struct audit_net        *aunet = net_generic(&init_net, audit_net_id);
@@ -448,11 +448,11 @@ static void kauditd_send_multicast_skb(struct sk_buff *skb)
          * no reason for new multicast clients to continue with this
          * non-compliance.
          */
-        copy = skb_copy(skb, GFP_KERNEL);
+        copy = skb_copy(skb, gfp_mask);
         if (!copy)
                 return;
 
-        nlmsg_multicast(sock, copy, 0, AUDIT_NLGRP_READLOG, GFP_KERNEL);
+        nlmsg_multicast(sock, copy, 0, AUDIT_NLGRP_READLOG, gfp_mask);
 }
 
 /*
@@ -1940,7 +1940,7 @@ void audit_log_end(struct audit_buffer *ab)
                 struct nlmsghdr *nlh = nlmsg_hdr(ab->skb);
 
                 nlh->nlmsg_len = ab->skb->len;
-                kauditd_send_multicast_skb(ab->skb);
+                kauditd_send_multicast_skb(ab->skb, ab->gfp_mask);
 
                 /*
                  * The original kaudit unicast socket sends up messages with
diff --git a/kernel/auditfilter.c b/kernel/auditfilter.c
index 3598e13f2a65..4f68a326d92e 100644
--- a/kernel/auditfilter.c
+++ b/kernel/auditfilter.c
@@ -442,19 +442,7 @@ static struct audit_entry *audit_data_to_entry(struct audit_rule_data *data,
                 if ((f->type == AUDIT_LOGINUID) && (f->val == AUDIT_UID_UNSET)) {
                         f->type = AUDIT_LOGINUID_SET;
                         f->val = 0;
-                }
-
-                if ((f->type == AUDIT_PID) || (f->type == AUDIT_PPID)) {
-                        struct pid *pid;
-                        rcu_read_lock();
-                        pid = find_vpid(f->val);
-                        if (!pid) {
-                                rcu_read_unlock();
-                                err = -ESRCH;
-                                goto exit_free;
-                        }
-                        f->val = pid_nr(pid);
-                        rcu_read_unlock();
+                        entry->rule.pflags |= AUDIT_LOGINUID_LEGACY;
                 }
 
                 err = audit_field_valid(entry, f);
@@ -630,6 +618,13 @@ static struct audit_rule_data *audit_krule_to_data(struct audit_krule *krule)
                         data->buflen += data->values[i] =
                                 audit_pack_string(&bufp, krule->filterkey);
                         break;
+                case AUDIT_LOGINUID_SET:
+                        if (krule->pflags & AUDIT_LOGINUID_LEGACY && !f->val) {
+                                data->fields[i] = AUDIT_LOGINUID;
+                                data->values[i] = AUDIT_UID_UNSET;
+                                break;
+                        }
+                        /* fallthrough if set */
                 default:
                         data->values[i] = f->val;
                 }
@@ -646,6 +641,7 @@ static int audit_compare_rule(struct audit_krule *a, struct audit_krule *b)
         int i;
 
         if (a->flags != b->flags ||
+            a->pflags != b->pflags ||
             a->listnr != b->listnr ||
             a->action != b->action ||
             a->field_count != b->field_count)
@@ -764,6 +760,7 @@ struct audit_entry *audit_dupe_rule(struct audit_krule *old)
         new = &entry->rule;
         new->vers_ops = old->vers_ops;
         new->flags = old->flags;
+        new->pflags = old->pflags;
         new->listnr = old->listnr;
         new->action = old->action;
         for (i = 0; i < AUDIT_BITMASK_SIZE; i++)
diff --git a/kernel/auditsc.c b/kernel/auditsc.c
index c75522a83678..37c69ab561da 100644
--- a/kernel/auditsc.c
+++ b/kernel/auditsc.c
@@ -1877,12 +1877,18 @@ void __audit_inode(struct filename *name, const struct dentry *dentry,
         }
 
 out_alloc:
-        /* unable to find the name from a previous getname(). Allocate a new
-         * anonymous entry.
-         */
-        n = audit_alloc_name(context, AUDIT_TYPE_NORMAL);
+        /* unable to find an entry with both a matching name and type */
+        n = audit_alloc_name(context, AUDIT_TYPE_UNKNOWN);
         if (!n)
                 return;
+        if (name)
+                /* since name is not NULL we know there is already a matching
+                 * name record, see audit_getname(), so there must be a type
+                 * mismatch; reuse the string path since the original name
+                 * record will keep the string valid until we free it in
+                 * audit_free_names() */
+                n->name = name;
+
 out:
         if (parent) {
                 n->name_len = n->name ? parent_len(n->name->name) : AUDIT_NAME_FULL;
diff --git a/mm/memory.c b/mm/memory.c
index 649e7d440bd7..ca920d1fd314 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -2378,12 +2378,12 @@ void unmap_mapping_range(struct address_space *mapping,
                 details.last_index = ULONG_MAX;
 
 
-        i_mmap_lock_read(mapping);
+        i_mmap_lock_write(mapping);
         if (unlikely(!RB_EMPTY_ROOT(&mapping->i_mmap)))
                 unmap_mapping_range_tree(&mapping->i_mmap, &details);
         if (unlikely(!list_empty(&mapping->i_mmap_nonlinear)))
                 unmap_mapping_range_list(&mapping->i_mmap_nonlinear, &details);
-        i_mmap_unlock_read(mapping);
+        i_mmap_unlock_write(mapping);
 }
 EXPORT_SYMBOL(unmap_mapping_range);