Merge 6e7765cb47 ("Merge tag 'asm-generic-fixes-5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic") into android-mainline

Steps on the way to 5.19

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Idf5cf7dab5853b4e4feadbe5f9e797245afde0d3
This commit is contained in:
Greg Kroah-Hartman 2022-07-29 17:21:50 +02:00
commit 3903890a36
27 changed files with 138 additions and 110 deletions

View File

@ -60,6 +60,10 @@ Arnd Bergmann <arnd@arndb.de>
Atish Patra <atishp@atishpatra.org> <atish.patra@wdc.com>
Axel Dyks <xl@xlsigned.net>
Axel Lin <axel.lin@gmail.com>
Baolin Wang <baolin.wang@linux.alibaba.com> <baolin.wang@linaro.org>
Baolin Wang <baolin.wang@linux.alibaba.com> <baolin.wang@spreadtrum.com>
Baolin Wang <baolin.wang@linux.alibaba.com> <baolin.wang@unisoc.com>
Baolin Wang <baolin.wang@linux.alibaba.com> <baolin.wang7@gmail.com>
Bart Van Assche <bvanassche@acm.org> <bart.vanassche@sandisk.com>
Bart Van Assche <bvanassche@acm.org> <bart.vanassche@wdc.com>
Ben Gardner <bgardner@wabtec.com>
@ -135,6 +139,8 @@ Frank Rowand <frowand.list@gmail.com> <frowand@mvista.com>
Frank Zago <fzago@systemfabricworks.com>
Gao Xiang <xiang@kernel.org> <gaoxiang25@huawei.com>
Gao Xiang <xiang@kernel.org> <hsiangkao@aol.com>
Gao Xiang <xiang@kernel.org> <hsiangkao@linux.alibaba.com>
Gao Xiang <xiang@kernel.org> <hsiangkao@redhat.com>
Gerald Schaefer <gerald.schaefer@linux.ibm.com> <geraldsc@de.ibm.com>
Gerald Schaefer <gerald.schaefer@linux.ibm.com> <gerald.schaefer@de.ibm.com>
Gerald Schaefer <gerald.schaefer@linux.ibm.com> <geraldsc@linux.vnet.ibm.com>
@ -371,6 +377,7 @@ Sean Nyekjaer <sean@geanix.com> <sean.nyekjaer@prevas.dk>
Sebastian Reichel <sre@kernel.org> <sebastian.reichel@collabora.co.uk>
Sebastian Reichel <sre@kernel.org> <sre@debian.org>
Sedat Dilek <sedat.dilek@gmail.com> <sedat.dilek@credativ.de>
Seth Forshee <sforshee@kernel.org> <seth.forshee@canonical.com>
Shiraz Hashim <shiraz.linux.kernel@gmail.com> <shiraz.hashim@st.com>
Shuah Khan <shuah@kernel.org> <shuahkhan@gmail.com>
Shuah Khan <shuah@kernel.org> <shuah.khan@hp.com>

View File

@ -38,7 +38,7 @@ clocks {
sys_clk: sys_clk {
compatible = "fixed-clock";
#clock-cells = <0>;
clock-frequency = <162500000>;
clock-frequency = <165625000>;
};
cpu_clk: cpu_clk {

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@ -549,7 +549,7 @@ static struct pxa2xx_spi_controller corgi_spi_info = {
};
static struct gpiod_lookup_table corgi_spi_gpio_table = {
.dev_id = "pxa2xx-spi.1",
.dev_id = "spi1",
.table = {
GPIO_LOOKUP_IDX("gpio-pxa", CORGI_GPIO_ADS7846_CS, "cs", 0, GPIO_ACTIVE_LOW),
GPIO_LOOKUP_IDX("gpio-pxa", CORGI_GPIO_LCDCON_CS, "cs", 1, GPIO_ACTIVE_LOW),

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@ -635,7 +635,7 @@ static struct pxa2xx_spi_controller pxa_ssp2_master_info = {
};
static struct gpiod_lookup_table pxa_ssp2_gpio_table = {
.dev_id = "pxa2xx-spi.2",
.dev_id = "spi2",
.table = {
GPIO_LOOKUP_IDX("gpio-pxa", GPIO88_HX4700_TSC2046_CS, "cs", 0, GPIO_ACTIVE_LOW),
{ },

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@ -140,7 +140,7 @@ struct platform_device pxa_spi_ssp4 = {
};
static struct gpiod_lookup_table pxa_ssp3_gpio_table = {
.dev_id = "pxa2xx-spi.3",
.dev_id = "spi3",
.table = {
GPIO_LOOKUP_IDX("gpio-pxa", ICONTROL_MCP251x_nCS1, "cs", 0, GPIO_ACTIVE_LOW),
GPIO_LOOKUP_IDX("gpio-pxa", ICONTROL_MCP251x_nCS2, "cs", 1, GPIO_ACTIVE_LOW),
@ -149,7 +149,7 @@ static struct gpiod_lookup_table pxa_ssp3_gpio_table = {
};
static struct gpiod_lookup_table pxa_ssp4_gpio_table = {
.dev_id = "pxa2xx-spi.4",
.dev_id = "spi4",
.table = {
GPIO_LOOKUP_IDX("gpio-pxa", ICONTROL_MCP251x_nCS3, "cs", 0, GPIO_ACTIVE_LOW),
GPIO_LOOKUP_IDX("gpio-pxa", ICONTROL_MCP251x_nCS4, "cs", 1, GPIO_ACTIVE_LOW),

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@ -207,7 +207,7 @@ static struct spi_board_info littleton_spi_devices[] __initdata = {
};
static struct gpiod_lookup_table littleton_spi_gpio_table = {
.dev_id = "pxa2xx-spi.2",
.dev_id = "spi2",
.table = {
GPIO_LOOKUP_IDX("gpio-pxa", LITTLETON_GPIO_LCD_CS, "cs", 0, GPIO_ACTIVE_LOW),
{ },

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@ -994,7 +994,7 @@ static struct pxa2xx_spi_controller magician_spi_info = {
};
static struct gpiod_lookup_table magician_spi_gpio_table = {
.dev_id = "pxa2xx-spi.2",
.dev_id = "spi2",
.table = {
/* NOTICE must be GPIO, incompatibility with hw PXA SPI framing */
GPIO_LOOKUP_IDX("gpio-pxa", GPIO14_MAGICIAN_TSC2046_CS, "cs", 0, GPIO_ACTIVE_LOW),

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@ -578,7 +578,7 @@ static struct pxa2xx_spi_controller spitz_spi_info = {
};
static struct gpiod_lookup_table spitz_spi_gpio_table = {
.dev_id = "pxa2xx-spi.2",
.dev_id = "spi2",
.table = {
GPIO_LOOKUP_IDX("gpio-pxa", SPITZ_GPIO_ADS7846_CS, "cs", 0, GPIO_ACTIVE_LOW),
GPIO_LOOKUP_IDX("gpio-pxa", SPITZ_GPIO_LCDCON_CS, "cs", 1, GPIO_ACTIVE_LOW),

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@ -623,7 +623,7 @@ static struct pxa2xx_spi_controller pxa_ssp2_master_info = {
};
static struct gpiod_lookup_table pxa_ssp1_gpio_table = {
.dev_id = "pxa2xx-spi.1",
.dev_id = "spi1",
.table = {
GPIO_LOOKUP_IDX("gpio-pxa", GPIO24_ZIPITZ2_WIFI_CS, "cs", 0, GPIO_ACTIVE_LOW),
{ },
@ -631,7 +631,7 @@ static struct gpiod_lookup_table pxa_ssp1_gpio_table = {
};
static struct gpiod_lookup_table pxa_ssp2_gpio_table = {
.dev_id = "pxa2xx-spi.2",
.dev_id = "spi2",
.table = {
GPIO_LOOKUP_IDX("gpio-pxa", GPIO88_ZIPITZ2_LCD_CS, "cs", 0, GPIO_ACTIVE_LOW),
{ },

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@ -2,7 +2,7 @@
/*
* Kernel interface for the s390 arch_random_* functions
*
* Copyright IBM Corp. 2017, 2020
* Copyright IBM Corp. 2017, 2022
*
* Author: Harald Freudenberger <freude@de.ibm.com>
*
@ -14,6 +14,7 @@
#ifdef CONFIG_ARCH_RANDOM
#include <linux/static_key.h>
#include <linux/preempt.h>
#include <linux/atomic.h>
#include <asm/cpacf.h>
@ -32,7 +33,8 @@ static inline bool __must_check arch_get_random_int(unsigned int *v)
static inline bool __must_check arch_get_random_seed_long(unsigned long *v)
{
if (static_branch_likely(&s390_arch_random_available)) {
if (static_branch_likely(&s390_arch_random_available) &&
in_task()) {
cpacf_trng(NULL, 0, (u8 *)v, sizeof(*v));
atomic64_add(sizeof(*v), &s390_arch_random_counter);
return true;
@ -42,7 +44,8 @@ static inline bool __must_check arch_get_random_seed_long(unsigned long *v)
static inline bool __must_check arch_get_random_seed_int(unsigned int *v)
{
if (static_branch_likely(&s390_arch_random_available)) {
if (static_branch_likely(&s390_arch_random_available) &&
in_task()) {
cpacf_trng(NULL, 0, (u8 *)v, sizeof(*v));
atomic64_add(sizeof(*v), &s390_arch_random_counter);
return true;

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@ -592,8 +592,12 @@ static int ntfs_attr_find(const ATTR_TYPE type, const ntfschar *name,
a = (ATTR_RECORD*)((u8*)ctx->attr +
le32_to_cpu(ctx->attr->length));
for (;; a = (ATTR_RECORD*)((u8*)a + le32_to_cpu(a->length))) {
if ((u8*)a < (u8*)ctx->mrec || (u8*)a > (u8*)ctx->mrec +
le32_to_cpu(ctx->mrec->bytes_allocated))
u8 *mrec_end = (u8 *)ctx->mrec +
le32_to_cpu(ctx->mrec->bytes_allocated);
u8 *name_end = (u8 *)a + le16_to_cpu(a->name_offset) +
a->name_length * sizeof(ntfschar);
if ((u8*)a < (u8*)ctx->mrec || (u8*)a > mrec_end ||
name_end > mrec_end)
break;
ctx->attr = a;
if (unlikely(le32_to_cpu(a->type) > le32_to_cpu(type) ||

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@ -277,7 +277,6 @@ enum ocfs2_mount_options
OCFS2_MOUNT_JOURNAL_ASYNC_COMMIT = 1 << 15, /* Journal Async Commit */
OCFS2_MOUNT_ERRORS_CONT = 1 << 16, /* Return EIO to the calling process on error */
OCFS2_MOUNT_ERRORS_ROFS = 1 << 17, /* Change filesystem to read-only on error */
OCFS2_MOUNT_NOCLUSTER = 1 << 18, /* No cluster aware filesystem mount */
};
#define OCFS2_OSB_SOFT_RO 0x0001
@ -673,8 +672,7 @@ static inline int ocfs2_cluster_o2cb_global_heartbeat(struct ocfs2_super *osb)
static inline int ocfs2_mount_local(struct ocfs2_super *osb)
{
return ((osb->s_feature_incompat & OCFS2_FEATURE_INCOMPAT_LOCAL_MOUNT)
|| (osb->s_mount_opt & OCFS2_MOUNT_NOCLUSTER));
return (osb->s_feature_incompat & OCFS2_FEATURE_INCOMPAT_LOCAL_MOUNT);
}
static inline int ocfs2_uses_extended_slot_map(struct ocfs2_super *osb)

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@ -252,16 +252,14 @@ static int __ocfs2_find_empty_slot(struct ocfs2_slot_info *si,
int i, ret = -ENOSPC;
if ((preferred >= 0) && (preferred < si->si_num_slots)) {
if (!si->si_slots[preferred].sl_valid ||
!si->si_slots[preferred].sl_node_num) {
if (!si->si_slots[preferred].sl_valid) {
ret = preferred;
goto out;
}
}
for(i = 0; i < si->si_num_slots; i++) {
if (!si->si_slots[i].sl_valid ||
!si->si_slots[i].sl_node_num) {
if (!si->si_slots[i].sl_valid) {
ret = i;
break;
}
@ -456,30 +454,24 @@ int ocfs2_find_slot(struct ocfs2_super *osb)
spin_lock(&osb->osb_lock);
ocfs2_update_slot_info(si);
if (ocfs2_mount_local(osb))
/* use slot 0 directly in local mode */
slot = 0;
else {
/* search for ourselves first and take the slot if it already
* exists. Perhaps we need to mark this in a variable for our
* own journal recovery? Possibly not, though we certainly
* need to warn to the user */
slot = __ocfs2_node_num_to_slot(si, osb->node_num);
/* search for ourselves first and take the slot if it already
* exists. Perhaps we need to mark this in a variable for our
* own journal recovery? Possibly not, though we certainly
* need to warn to the user */
slot = __ocfs2_node_num_to_slot(si, osb->node_num);
if (slot < 0) {
/* if no slot yet, then just take 1st available
* one. */
slot = __ocfs2_find_empty_slot(si, osb->preferred_slot);
if (slot < 0) {
/* if no slot yet, then just take 1st available
* one. */
slot = __ocfs2_find_empty_slot(si, osb->preferred_slot);
if (slot < 0) {
spin_unlock(&osb->osb_lock);
mlog(ML_ERROR, "no free slots available!\n");
status = -EINVAL;
goto bail;
}
} else
printk(KERN_INFO "ocfs2: Slot %d on device (%s) was "
"already allocated to this node!\n",
slot, osb->dev_str);
}
spin_unlock(&osb->osb_lock);
mlog(ML_ERROR, "no free slots available!\n");
status = -EINVAL;
goto bail;
}
} else
printk(KERN_INFO "ocfs2: Slot %d on device (%s) was already "
"allocated to this node!\n", slot, osb->dev_str);
ocfs2_set_slot(si, slot, osb->node_num);
osb->slot_num = slot;

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@ -172,7 +172,6 @@ enum {
Opt_dir_resv_level,
Opt_journal_async_commit,
Opt_err_cont,
Opt_nocluster,
Opt_err,
};
@ -206,7 +205,6 @@ static const match_table_t tokens = {
{Opt_dir_resv_level, "dir_resv_level=%u"},
{Opt_journal_async_commit, "journal_async_commit"},
{Opt_err_cont, "errors=continue"},
{Opt_nocluster, "nocluster"},
{Opt_err, NULL}
};
@ -618,13 +616,6 @@ static int ocfs2_remount(struct super_block *sb, int *flags, char *data)
goto out;
}
tmp = OCFS2_MOUNT_NOCLUSTER;
if ((osb->s_mount_opt & tmp) != (parsed_options.mount_opt & tmp)) {
ret = -EINVAL;
mlog(ML_ERROR, "Cannot change nocluster option on remount\n");
goto out;
}
tmp = OCFS2_MOUNT_HB_LOCAL | OCFS2_MOUNT_HB_GLOBAL |
OCFS2_MOUNT_HB_NONE;
if ((osb->s_mount_opt & tmp) != (parsed_options.mount_opt & tmp)) {
@ -865,7 +856,6 @@ static int ocfs2_verify_userspace_stack(struct ocfs2_super *osb,
}
if (ocfs2_userspace_stack(osb) &&
!(osb->s_mount_opt & OCFS2_MOUNT_NOCLUSTER) &&
strncmp(osb->osb_cluster_stack, mopt->cluster_stack,
OCFS2_STACK_LABEL_LEN)) {
mlog(ML_ERROR,
@ -1137,11 +1127,6 @@ static int ocfs2_fill_super(struct super_block *sb, void *data, int silent)
osb->s_mount_opt & OCFS2_MOUNT_DATA_WRITEBACK ? "writeback" :
"ordered");
if ((osb->s_mount_opt & OCFS2_MOUNT_NOCLUSTER) &&
!(osb->s_feature_incompat & OCFS2_FEATURE_INCOMPAT_LOCAL_MOUNT))
printk(KERN_NOTICE "ocfs2: The shared device (%s) is mounted "
"without cluster aware mode.\n", osb->dev_str);
atomic_set(&osb->vol_state, VOLUME_MOUNTED);
wake_up(&osb->osb_mount_event);
@ -1452,9 +1437,6 @@ static int ocfs2_parse_options(struct super_block *sb,
case Opt_journal_async_commit:
mopt->mount_opt |= OCFS2_MOUNT_JOURNAL_ASYNC_COMMIT;
break;
case Opt_nocluster:
mopt->mount_opt |= OCFS2_MOUNT_NOCLUSTER;
break;
default:
mlog(ML_ERROR,
"Unrecognized mount option \"%s\" "
@ -1566,9 +1548,6 @@ static int ocfs2_show_options(struct seq_file *s, struct dentry *root)
if (opts & OCFS2_MOUNT_JOURNAL_ASYNC_COMMIT)
seq_printf(s, ",journal_async_commit");
if (opts & OCFS2_MOUNT_NOCLUSTER)
seq_printf(s, ",nocluster");
return 0;
}

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@ -1263,6 +1263,9 @@ static ssize_t do_sendfile(int out_fd, int in_fd, loff_t *ppos,
count, fl);
file_end_write(out.file);
} else {
if (out.file->f_flags & O_NONBLOCK)
fl |= SPLICE_F_NONBLOCK;
retval = splice_file_to_pipe(in.file, opipe, &pos, count, fl);
}

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@ -192,17 +192,19 @@ static inline void msg_init(struct uffd_msg *msg)
}
static inline struct uffd_msg userfault_msg(unsigned long address,
unsigned long real_address,
unsigned int flags,
unsigned long reason,
unsigned int features)
{
struct uffd_msg msg;
msg_init(&msg);
msg.event = UFFD_EVENT_PAGEFAULT;
if (!(features & UFFD_FEATURE_EXACT_ADDRESS))
address &= PAGE_MASK;
msg.arg.pagefault.address = address;
msg.arg.pagefault.address = (features & UFFD_FEATURE_EXACT_ADDRESS) ?
real_address : address;
/*
* These flags indicate why the userfault occurred:
* - UFFD_PAGEFAULT_FLAG_WP indicates a write protect fault.
@ -488,8 +490,8 @@ vm_fault_t handle_userfault(struct vm_fault *vmf, unsigned long reason)
init_waitqueue_func_entry(&uwq.wq, userfaultfd_wake_function);
uwq.wq.private = current;
uwq.msg = userfault_msg(vmf->real_address, vmf->flags, reason,
ctx->features);
uwq.msg = userfault_msg(vmf->address, vmf->real_address, vmf->flags,
reason, ctx->features);
uwq.ctx = ctx;
uwq.waken = false;

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@ -1125,9 +1125,7 @@ static inline void memcpy_toio(volatile void __iomem *addr, const void *buffer,
}
#endif
#ifndef CONFIG_GENERIC_DEVMEM_IS_ALLOWED
extern int devmem_is_allowed(unsigned long pfn);
#endif
#endif /* __KERNEL__ */

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@ -1130,23 +1130,27 @@ static inline bool is_zone_movable_page(const struct page *page)
#if defined(CONFIG_ZONE_DEVICE) && defined(CONFIG_FS_DAX)
DECLARE_STATIC_KEY_FALSE(devmap_managed_key);
bool __put_devmap_managed_page(struct page *page);
static inline bool put_devmap_managed_page(struct page *page)
bool __put_devmap_managed_page_refs(struct page *page, int refs);
static inline bool put_devmap_managed_page_refs(struct page *page, int refs)
{
if (!static_branch_unlikely(&devmap_managed_key))
return false;
if (!is_zone_device_page(page))
return false;
return __put_devmap_managed_page(page);
return __put_devmap_managed_page_refs(page, refs);
}
#else /* CONFIG_ZONE_DEVICE && CONFIG_FS_DAX */
static inline bool put_devmap_managed_page(struct page *page)
static inline bool put_devmap_managed_page_refs(struct page *page, int refs)
{
return false;
}
#endif /* CONFIG_ZONE_DEVICE && CONFIG_FS_DAX */
static inline bool put_devmap_managed_page(struct page *page)
{
return put_devmap_managed_page_refs(page, 1);
}
/* 127: arbitrary random number, small enough to assemble well */
#define folio_ref_zero_or_close_to_overflow(folio) \
((unsigned int) folio_ref_count(folio) + 127u <= 127u)

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@ -192,6 +192,7 @@ struct f_owner_ex {
#define F_LINUX_SPECIFIC_BASE 1024
#ifndef HAVE_ARCH_STRUCT_FLOCK
struct flock {
short l_type;
short l_whence;
@ -216,5 +217,6 @@ struct flock64 {
__ARCH_FLOCK64_PAD
#endif
};
#endif /* HAVE_ARCH_STRUCT_FLOCK */
#endif /* _ASM_GENERIC_FCNTL_H */

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@ -87,7 +87,8 @@ static inline struct folio *try_get_folio(struct page *page, int refs)
* belongs to this folio.
*/
if (unlikely(page_folio(page) != folio)) {
folio_put_refs(folio, refs);
if (!put_devmap_managed_page_refs(&folio->page, refs))
folio_put_refs(folio, refs);
goto retry;
}
@ -176,7 +177,8 @@ static void gup_put_folio(struct folio *folio, int refs, unsigned int flags)
refs *= GUP_PIN_COUNTING_BIAS;
}
folio_put_refs(folio, refs);
if (!put_devmap_managed_page_refs(&folio->page, refs))
folio_put_refs(folio, refs);
}
/**

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@ -4788,8 +4788,13 @@ int copy_hugetlb_page_range(struct mm_struct *dst, struct mm_struct *src,
* sharing with another vma.
*/
;
} else if (unlikely(is_hugetlb_entry_migration(entry) ||
is_hugetlb_entry_hwpoisoned(entry))) {
} else if (unlikely(is_hugetlb_entry_hwpoisoned(entry))) {
bool uffd_wp = huge_pte_uffd_wp(entry);
if (!userfaultfd_wp(dst_vma) && uffd_wp)
entry = huge_pte_clear_uffd_wp(entry);
set_huge_pte_at(dst, addr, dst_pte, entry);
} else if (unlikely(is_hugetlb_entry_migration(entry))) {
swp_entry_t swp_entry = pte_to_swp_entry(entry);
bool uffd_wp = huge_pte_uffd_wp(entry);
@ -5947,6 +5952,7 @@ int hugetlb_mcopy_atomic_pte(struct mm_struct *dst_mm,
page = alloc_huge_page(dst_vma, dst_addr, 0);
if (IS_ERR(page)) {
put_page(*pagep);
ret = -ENOMEM;
*pagep = NULL;
goto out;

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@ -603,14 +603,6 @@ static unsigned long kfence_init_pool(void)
addr += 2 * PAGE_SIZE;
}
/*
* The pool is live and will never be deallocated from this point on.
* Remove the pool object from the kmemleak object tree, as it would
* otherwise overlap with allocations returned by kfence_alloc(), which
* are registered with kmemleak through the slab post-alloc hook.
*/
kmemleak_free(__kfence_pool);
return 0;
}
@ -623,8 +615,16 @@ static bool __init kfence_init_pool_early(void)
addr = kfence_init_pool();
if (!addr)
if (!addr) {
/*
* The pool is live and will never be deallocated from this point on.
* Ignore the pool object from the kmemleak phys object tree, as it would
* otherwise overlap with allocations returned by kfence_alloc(), which
* are registered with kmemleak through the slab post-alloc hook.
*/
kmemleak_ignore_phys(__pa(__kfence_pool));
return true;
}
/*
* Only release unprotected pages, and do not try to go back and change

View File

@ -3044,7 +3044,7 @@ static inline void wp_page_reuse(struct vm_fault *vmf)
pte_t entry;
VM_BUG_ON(!(vmf->flags & FAULT_FLAG_WRITE));
VM_BUG_ON(PageAnon(page) && !PageAnonExclusive(page));
VM_BUG_ON(page && PageAnon(page) && !PageAnonExclusive(page));
/*
* Clear the pages cpupid information as the existing
@ -4370,9 +4370,12 @@ vm_fault_t finish_fault(struct vm_fault *vmf)
return VM_FAULT_OOM;
}
/* See comment in handle_pte_fault() */
/*
* See comment in handle_pte_fault() for how this scenario happens, we
* need to return NOPAGE so that we drop this page.
*/
if (pmd_devmap_trans_unstable(vmf->pmd))
return 0;
return VM_FAULT_NOPAGE;
vmf->pte = pte_offset_map_lock(vma->vm_mm, vmf->pmd,
vmf->address, &vmf->ptl);

View File

@ -499,7 +499,7 @@ void free_zone_device_page(struct page *page)
}
#ifdef CONFIG_FS_DAX
bool __put_devmap_managed_page(struct page *page)
bool __put_devmap_managed_page_refs(struct page *page, int refs)
{
if (page->pgmap->type != MEMORY_DEVICE_FS_DAX)
return false;
@ -509,9 +509,9 @@ bool __put_devmap_managed_page(struct page *page)
* refcount is 1, then the page is free and the refcount is
* stable because nobody holds a reference on the page.
*/
if (page_ref_dec_return(page) == 1)
if (page_ref_sub_return(page, refs) == 1)
wake_up_var(&page->_refcount);
return true;
}
EXPORT_SYMBOL(__put_devmap_managed_page);
EXPORT_SYMBOL(__put_devmap_managed_page_refs);
#endif /* CONFIG_FS_DAX */

View File

@ -55,22 +55,28 @@ static vm_fault_t secretmem_fault(struct vm_fault *vmf)
gfp_t gfp = vmf->gfp_mask;
unsigned long addr;
struct page *page;
vm_fault_t ret;
int err;
if (((loff_t)vmf->pgoff << PAGE_SHIFT) >= i_size_read(inode))
return vmf_error(-EINVAL);
filemap_invalidate_lock_shared(mapping);
retry:
page = find_lock_page(mapping, offset);
if (!page) {
page = alloc_page(gfp | __GFP_ZERO);
if (!page)
return VM_FAULT_OOM;
if (!page) {
ret = VM_FAULT_OOM;
goto out;
}
err = set_direct_map_invalid_noflush(page);
if (err) {
put_page(page);
return vmf_error(err);
ret = vmf_error(err);
goto out;
}
__SetPageUptodate(page);
@ -86,7 +92,8 @@ static vm_fault_t secretmem_fault(struct vm_fault *vmf)
if (err == -EEXIST)
goto retry;
return vmf_error(err);
ret = vmf_error(err);
goto out;
}
addr = (unsigned long)page_address(page);
@ -94,7 +101,11 @@ static vm_fault_t secretmem_fault(struct vm_fault *vmf)
}
vmf->page = page;
return VM_FAULT_LOCKED;
ret = VM_FAULT_LOCKED;
out:
filemap_invalidate_unlock_shared(mapping);
return ret;
}
static const struct vm_operations_struct secretmem_vm_ops = {
@ -162,12 +173,20 @@ static int secretmem_setattr(struct user_namespace *mnt_userns,
struct dentry *dentry, struct iattr *iattr)
{
struct inode *inode = d_inode(dentry);
struct address_space *mapping = inode->i_mapping;
unsigned int ia_valid = iattr->ia_valid;
int ret;
filemap_invalidate_lock(mapping);
if ((ia_valid & ATTR_SIZE) && inode->i_size)
return -EINVAL;
ret = -EINVAL;
else
ret = simple_setattr(mnt_userns, dentry, iattr);
return simple_setattr(mnt_userns, dentry, iattr);
filemap_invalidate_unlock(mapping);
return ret;
}
static const struct inode_operations secretmem_iops = {

View File

@ -3392,7 +3392,7 @@ static int shmem_parse_one(struct fs_context *fc, struct fs_parameter *param)
break;
case Opt_nr_blocks:
ctx->blocks = memparse(param->string, &rest);
if (*rest)
if (*rest || ctx->blocks > S64_MAX)
goto bad_value;
ctx->seen |= SHMEM_SEEN_BLOCKS;
break;
@ -3514,10 +3514,7 @@ static int shmem_reconfigure(struct fs_context *fc)
raw_spin_lock(&sbinfo->stat_lock);
inodes = sbinfo->max_inodes - sbinfo->free_inodes;
if (ctx->blocks > S64_MAX) {
err = "Number of blocks too large";
goto out;
}
if ((ctx->seen & SHMEM_SEEN_BLOCKS) && ctx->blocks) {
if (!sbinfo->max_blocks) {
err = "Cannot retroactively limit size";

View File

@ -1,3 +1,4 @@
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _ASM_GENERIC_FCNTL_H
#define _ASM_GENERIC_FCNTL_H
@ -90,7 +91,7 @@
/* a horrid kludge trying to make sure that this will fail on old kernels */
#define O_TMPFILE (__O_TMPFILE | O_DIRECTORY)
#define O_TMPFILE_MASK (__O_TMPFILE | O_DIRECTORY | O_CREAT)
#define O_TMPFILE_MASK (__O_TMPFILE | O_DIRECTORY | O_CREAT)
#ifndef O_NDELAY
#define O_NDELAY O_NONBLOCK
@ -115,11 +116,13 @@
#define F_GETSIG 11 /* for sockets. */
#endif
#if __BITS_PER_LONG == 32 || defined(__KERNEL__)
#ifndef F_GETLK64
#define F_GETLK64 12 /* using 'struct flock64' */
#define F_SETLK64 13
#define F_SETLKW64 14
#endif
#endif /* __BITS_PER_LONG == 32 || defined(__KERNEL__) */
#ifndef F_SETOWN_EX
#define F_SETOWN_EX 15
@ -178,6 +181,10 @@ struct f_owner_ex {
blocking */
#define LOCK_UN 8 /* remove lock */
/*
* LOCK_MAND support has been removed from the kernel. We leave the symbols
* here to not break legacy builds, but these should not be used in new code.
*/
#define LOCK_MAND 32 /* This is a mandatory flock ... */
#define LOCK_READ 64 /* which allows concurrent read operations */
#define LOCK_WRITE 128 /* which allows concurrent write operations */
@ -185,6 +192,7 @@ struct f_owner_ex {
#define F_LINUX_SPECIFIC_BASE 1024
#ifndef HAVE_ARCH_STRUCT_FLOCK
struct flock {
short l_type;
short l_whence;
@ -209,5 +217,6 @@ struct flock64 {
__ARCH_FLOCK64_PAD
#endif
};
#endif /* HAVE_ARCH_STRUCT_FLOCK */
#endif /* _ASM_GENERIC_FCNTL_H */