diff options
-rw-r--r-- | arch/arm64/configs/defconfig | 9 | ||||
-rw-r--r-- | arch/arm64/include/asm/dma-mapping.h | 11 | ||||
-rw-r--r-- | arch/arm64/include/asm/pgtable.h | 5 | ||||
-rw-r--r-- | arch/arm64/kernel/suspend.c | 14 | ||||
-rw-r--r-- | drivers/char/ipmi/ipmi_msghandler.c | 46 | ||||
-rw-r--r-- | drivers/char/ipmi/ipmi_ssif.c | 1 | ||||
-rw-r--r-- | drivers/md/dm-thin.c | 29 | ||||
-rw-r--r-- | drivers/md/dm.c | 2 | ||||
-rw-r--r-- | include/linux/audit.h | 4 | ||||
-rw-r--r-- | kernel/audit.c | 8 | ||||
-rw-r--r-- | kernel/auditfilter.c | 23 | ||||
-rw-r--r-- | kernel/auditsc.c | 14 | ||||
-rw-r--r-- | mm/memory.c | 4 |
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); |