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platform_kernel-5.15
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This is the 5.15.4 stable release 

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Merge 5.15.4 into android13-5.15

Changes in 5.15.4
	string: uninline memcpy_and_pad
	Revert "drm: fb_helper: improve CONFIG_FB dependency"
	Revert "drm: fb_helper: fix CONFIG_FB dependency"
	KVM: Fix steal time asm constraints
	btrfs: introduce btrfs_is_data_reloc_root
	btrfs: zoned: add a dedicated data relocation block group
	btrfs: zoned: only allow one process to add pages to a relocation inode
	btrfs: zoned: use regular writes for relocation
	btrfs: check for relocation inodes on zoned btrfs in should_nocow
	btrfs: zoned: allow preallocation for relocation inodes
	fortify: Explicitly disable Clang support
	block: Add a helper to validate the block size
	loop: Use blk_validate_block_size() to validate block size
	Bluetooth: btusb: Add support for TP-Link UB500 Adapter
	parisc/entry: fix trace test in syscall exit path
	PCI/MSI: Deal with devices lying about their MSI mask capability
	PCI: Add MSI masking quirk for Nvidia ION AHCI
	perf/core: Avoid put_page() when GUP fails
	thermal: Fix NULL pointer dereferences in of_thermal_ functions
	Revert "ACPI: scan: Release PM resources blocked by unused objects"
	Linux 5.15.4

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ifadab2a01217d1f57c0c7d598b5ef3fb75a1bb65
This commit is contained in:
Greg Kroah-Hartman 2021-11-21 14:30:53 +01:00
parent e884438aa5 9ac77cf6e1
commit 8a39139a10
27 changed files with 192 additions and 130 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
Makefile
View File

@ -1,7 +1,7 @@
# SPDX-License-Identifier: GPL-2.0
VERSION = 5
PATCHLEVEL = 15
SUBLEVEL = 3
SUBLEVEL = 4
EXTRAVERSION =
NAME = Trick or Treat

2
arch/parisc/kernel/entry.S
View File

@ -1835,7 +1835,7 @@ syscall_restore:
/* Are we being ptraced? */
LDREG TI_FLAGS-THREAD_SZ_ALGN-FRAME_SIZE(%r30),%r19
ldi _TIF_SYSCALL_TRACE_MASK,%r2
ldi _TIF_SINGLESTEP|_TIF_BLOCKSTEP,%r2
and,COND(=) %r19,%r2,%r0
b,n syscall_restore_rfi

6
arch/x86/kvm/x86.c
View File

@ -3242,9 +3242,9 @@ static void record_steal_time(struct kvm_vcpu *vcpu)
"xor %1, %1\n"
"2:\n"
_ASM_EXTABLE_UA(1b, 2b)
: "+r" (st_preempted),
"+&r" (err)
: "m" (st->preempted));
: "+q" (st_preempted),
"+&r" (err),
"+m" (st->preempted));
if (err)
goto out;

25
drivers/acpi/glue.c
View File

@ -340,28 +340,3 @@ void acpi_device_notify_remove(struct device *dev)
acpi_unbind_one(dev);
}
int acpi_dev_turn_off_if_unused(struct device *dev, void *not_used)
{
struct acpi_device *adev = to_acpi_device(dev);
/*
* Skip device objects with device IDs, because they may be in use even
* if they are not companions of any physical device objects.
*/
if (adev->pnp.type.hardware_id)
return 0;
mutex_lock(&adev->physical_node_lock);
/*
* Device objects without device IDs are not in use if they have no
* corresponding physical device objects.
*/
if (list_empty(&adev->physical_node_list))
acpi_device_set_power(adev, ACPI_STATE_D3_COLD);
mutex_unlock(&adev->physical_node_lock);
return 0;
}

1
drivers/acpi/internal.h
View File

@ -117,7 +117,6 @@ bool acpi_device_is_battery(struct acpi_device *adev);
bool acpi_device_is_first_physical_node(struct acpi_device *adev,
const struct device *dev);
int acpi_bus_register_early_device(int type);
int acpi_dev_turn_off_if_unused(struct device *dev, void *not_used);
/* --------------------------------------------------------------------------
Device Matching and Notification

6
drivers/acpi/scan.c
View File

@ -2559,12 +2559,6 @@ int __init acpi_scan_init(void)
}
}
/*
* Make sure that power management resources are not blocked by ACPI
* device objects with no users.
*/
bus_for_each_dev(&acpi_bus_type, NULL, NULL, acpi_dev_turn_off_if_unused);
acpi_turn_off_unused_power_resources();
acpi_scan_initialized = true;

17
drivers/block/loop.c
View File

@ -272,19 +272,6 @@ static void __loop_update_dio(struct loop_device *lo, bool dio)
blk_mq_unfreeze_queue(lo->lo_queue);
}
/**
* loop_validate_block_size() - validates the passed in block size
* @bsize: size to validate
*/
static int
loop_validate_block_size(unsigned short bsize)
{
if (bsize < 512 || bsize > PAGE_SIZE || !is_power_of_2(bsize))
return -EINVAL;
return 0;
}
/**
* loop_set_size() - sets device size and notifies userspace
* @lo: struct loop_device to set the size for
@ -1236,7 +1223,7 @@ static int loop_configure(struct loop_device *lo, fmode_t mode,
}
if (config->block_size) {
error = loop_validate_block_size(config->block_size);
error = blk_validate_block_size(config->block_size);
if (error)
goto out_unlock;
}
@ -1759,7 +1746,7 @@ static int loop_set_block_size(struct loop_device *lo, unsigned long arg)
if (lo->lo_state != Lo_bound)
return -ENXIO;
err = loop_validate_block_size(arg);
err = blk_validate_block_size(arg);
if (err)
return err;

4
drivers/bluetooth/btusb.c
View File

@ -433,6 +433,10 @@ static const struct usb_device_id blacklist_table[] = {
{ USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK },
{ USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK },
/* Additional Realtek 8761B Bluetooth devices */
{ USB_DEVICE(0x2357, 0x0604), .driver_info = BTUSB_REALTEK |
BTUSB_WIDEBAND_SPEECH },
/* Additional Realtek 8761BU Bluetooth devices */
{ USB_DEVICE(0x0b05, 0x190e), .driver_info = BTUSB_REALTEK |
BTUSB_WIDEBAND_SPEECH },

5
drivers/gpu/drm/Kconfig
View File

@ -102,8 +102,9 @@ config DRM_DEBUG_DP_MST_TOPOLOGY_REFS
config DRM_FBDEV_EMULATION
bool "Enable legacy fbdev support for your modesetting driver"
depends on DRM_KMS_HELPER
depends on FB=y || FB=DRM_KMS_HELPER
depends on DRM
depends on FB
select DRM_KMS_HELPER
select FB_CFB_FILLRECT
select FB_CFB_COPYAREA
select FB_CFB_IMAGEBLIT

3
drivers/pci/msi.c
View File

@ -477,6 +477,9 @@ msi_setup_entry(struct pci_dev *dev, int nvec, struct irq_affinity *affd)
goto out;
pci_read_config_word(dev, dev->msi_cap + PCI_MSI_FLAGS, &control);
/* Lies, damned lies, and MSIs */
if (dev->dev_flags & PCI_DEV_FLAGS_HAS_MSI_MASKING)
control |= PCI_MSI_FLAGS_MASKBIT;
entry->msi_attrib.is_msix = 0;
entry->msi_attrib.is_64 = !!(control & PCI_MSI_FLAGS_64BIT);

6
drivers/pci/quirks.c
View File

@ -5796,3 +5796,9 @@ static void apex_pci_fixup_class(struct pci_dev *pdev)
}
DECLARE_PCI_FIXUP_CLASS_HEADER(0x1ac1, 0x089a,
PCI_CLASS_NOT_DEFINED, 8, apex_pci_fixup_class);
static void nvidia_ion_ahci_fixup(struct pci_dev *pdev)
{
pdev->dev_flags |= PCI_DEV_FLAGS_HAS_MSI_MASKING;
}
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, 0x0ab8, nvidia_ion_ahci_fixup);

9
drivers/thermal/thermal_of.c
View File

@ -89,7 +89,7 @@ static int of_thermal_get_temp(struct thermal_zone_device *tz,
{
struct __thermal_zone *data = tz->devdata;
if (!data->ops->get_temp)
if (!data->ops || !data->ops->get_temp)
return -EINVAL;
return data->ops->get_temp(data->sensor_data, temp);
@ -186,6 +186,9 @@ static int of_thermal_set_emul_temp(struct thermal_zone_device *tz,
{
struct __thermal_zone *data = tz->devdata;
if (!data->ops || !data->ops->set_emul_temp)
return -EINVAL;
return data->ops->set_emul_temp(data->sensor_data, temp);
}
@ -194,7 +197,7 @@ static int of_thermal_get_trend(struct thermal_zone_device *tz, int trip,
{
struct __thermal_zone *data = tz->devdata;
if (!data->ops->get_trend)
if (!data->ops || !data->ops->get_trend)
return -EINVAL;
return data->ops->get_trend(data->sensor_data, trip, trend);
@ -301,7 +304,7 @@ static int of_thermal_set_trip_temp(struct thermal_zone_device *tz, int trip,
if (trip >= data->ntrips || trip < 0)
return -EDOM;
if (data->ops->set_trip_temp) {
if (data->ops && data->ops->set_trip_temp) {
int ret;
ret = data->ops->set_trip_temp(data->sensor_data, trip, temp);

1
fs/btrfs/block-group.c
View File

@ -902,6 +902,7 @@ int btrfs_remove_block_group(struct btrfs_trans_handle *trans,
spin_unlock(&cluster->refill_lock);
btrfs_clear_treelog_bg(block_group);
btrfs_clear_data_reloc_bg(block_group);
path = btrfs_alloc_path();
if (!path) {

12
fs/btrfs/ctree.h
View File

@ -1017,6 +1017,13 @@ struct btrfs_fs_info {
spinlock_t treelog_bg_lock;
u64 treelog_bg;
/*
* Start of the dedicated data relocation block group, protected by
* relocation_bg_lock.
*/
spinlock_t relocation_bg_lock;
u64 data_reloc_bg;
#ifdef CONFIG_BTRFS_FS_REF_VERIFY
spinlock_t ref_verify_lock;
struct rb_root block_tree;
@ -3842,6 +3849,11 @@ static inline bool btrfs_is_zoned(const struct btrfs_fs_info *fs_info)
return fs_info->zoned != 0;
}
static inline bool btrfs_is_data_reloc_root(const struct btrfs_root *root)
{
return root->root_key.objectid == BTRFS_DATA_RELOC_TREE_OBJECTID;
}
/*
* We use page status Private2 to indicate there is an ordered extent with
* unfinished IO.

3
fs/btrfs/disk-io.c
View File

@ -1500,7 +1500,7 @@ static int btrfs_init_fs_root(struct btrfs_root *root, dev_t anon_dev)
goto fail;
if (root->root_key.objectid != BTRFS_TREE_LOG_OBJECTID &&
root->root_key.objectid != BTRFS_DATA_RELOC_TREE_OBJECTID) {
!btrfs_is_data_reloc_root(root)) {
set_bit(BTRFS_ROOT_SHAREABLE, &root->state);
btrfs_check_and_init_root_item(&root->root_item);
}
@ -2883,6 +2883,7 @@ void btrfs_init_fs_info(struct btrfs_fs_info *fs_info)
spin_lock_init(&fs_info->buffer_lock);
spin_lock_init(&fs_info->unused_bgs_lock);
spin_lock_init(&fs_info->treelog_bg_lock);
spin_lock_init(&fs_info->relocation_bg_lock);
rwlock_init(&fs_info->tree_mod_log_lock);
mutex_init(&fs_info->unused_bg_unpin_mutex);
mutex_init(&fs_info->reclaim_bgs_lock);

56
fs/btrfs/extent-tree.c
View File

@ -2376,7 +2376,7 @@ int btrfs_cross_ref_exist(struct btrfs_root *root, u64 objectid, u64 offset,
out:
btrfs_free_path(path);
if (root->root_key.objectid == BTRFS_DATA_RELOC_TREE_OBJECTID)
if (btrfs_is_data_reloc_root(root))
WARN_ON(ret > 0);
return ret;
}
@ -3495,6 +3495,9 @@ struct find_free_extent_ctl {
/* Allocation is called for tree-log */
bool for_treelog;
/* Allocation is called for data relocation */
bool for_data_reloc;
/* RAID index, converted from flags */
int index;
@ -3756,6 +3759,7 @@ static int do_allocation_zoned(struct btrfs_block_group *block_group,
u64 avail;
u64 bytenr = block_group->start;
u64 log_bytenr;
u64 data_reloc_bytenr;
int ret = 0;
bool skip;
@ -3773,13 +3777,31 @@ static int do_allocation_zoned(struct btrfs_block_group *block_group,
if (skip)
return 1;
/*
* Do not allow non-relocation blocks in the dedicated relocation block
* group, and vice versa.
*/
spin_lock(&fs_info->relocation_bg_lock);
data_reloc_bytenr = fs_info->data_reloc_bg;
if (data_reloc_bytenr &&
((ffe_ctl->for_data_reloc && bytenr != data_reloc_bytenr) ||
(!ffe_ctl->for_data_reloc && bytenr == data_reloc_bytenr)))
skip = true;
spin_unlock(&fs_info->relocation_bg_lock);
if (skip)
return 1;
spin_lock(&space_info->lock);
spin_lock(&block_group->lock);
spin_lock(&fs_info->treelog_bg_lock);
spin_lock(&fs_info->relocation_bg_lock);
ASSERT(!ffe_ctl->for_treelog ||
block_group->start == fs_info->treelog_bg ||
fs_info->treelog_bg == 0);
ASSERT(!ffe_ctl->for_data_reloc ||
block_group->start == fs_info->data_reloc_bg ||
fs_info->data_reloc_bg == 0);
if (block_group->ro) {
ret = 1;
@ -3796,6 +3818,16 @@ static int do_allocation_zoned(struct btrfs_block_group *block_group,
goto out;
}
/*
* Do not allow currently used block group to be the data relocation
* dedicated block group.
*/
if (ffe_ctl->for_data_reloc && !fs_info->data_reloc_bg &&
(block_group->used || block_group->reserved)) {
ret = 1;
goto out;
}
avail = block_group->length - block_group->alloc_offset;
if (avail < num_bytes) {
if (ffe_ctl->max_extent_size < avail) {
@ -3813,6 +3845,9 @@ static int do_allocation_zoned(struct btrfs_block_group *block_group,
if (ffe_ctl->for_treelog && !fs_info->treelog_bg)
fs_info->treelog_bg = block_group->start;
if (ffe_ctl->for_data_reloc && !fs_info->data_reloc_bg)
fs_info->data_reloc_bg = block_group->start;
ffe_ctl->found_offset = start + block_group->alloc_offset;
block_group->alloc_offset += num_bytes;
spin_lock(&ctl->tree_lock);
@ -3829,6 +3864,9 @@ static int do_allocation_zoned(struct btrfs_block_group *block_group,
out:
if (ret && ffe_ctl->for_treelog)
fs_info->treelog_bg = 0;
if (ret && ffe_ctl->for_data_reloc)
fs_info->data_reloc_bg = 0;
spin_unlock(&fs_info->relocation_bg_lock);
spin_unlock(&fs_info->treelog_bg_lock);
spin_unlock(&block_group->lock);
spin_unlock(&space_info->lock);
@ -4085,6 +4123,12 @@ static int prepare_allocation(struct btrfs_fs_info *fs_info,
ffe_ctl->hint_byte = fs_info->treelog_bg;
spin_unlock(&fs_info->treelog_bg_lock);
}
if (ffe_ctl->for_data_reloc) {
spin_lock(&fs_info->relocation_bg_lock);
if (fs_info->data_reloc_bg)
ffe_ctl->hint_byte = fs_info->data_reloc_bg;
spin_unlock(&fs_info->relocation_bg_lock);
}
return 0;
default:
BUG();
@ -4129,6 +4173,8 @@ static noinline int find_free_extent(struct btrfs_root *root,
struct btrfs_space_info *space_info;
bool full_search = false;
bool for_treelog = (root->root_key.objectid == BTRFS_TREE_LOG_OBJECTID);
bool for_data_reloc = (btrfs_is_data_reloc_root(root) &&
flags & BTRFS_BLOCK_GROUP_DATA);
WARN_ON(num_bytes < fs_info->sectorsize);
@ -4143,6 +4189,7 @@ static noinline int find_free_extent(struct btrfs_root *root,
ffe_ctl.found_offset = 0;
ffe_ctl.hint_byte = hint_byte_orig;
ffe_ctl.for_treelog = for_treelog;
ffe_ctl.for_data_reloc = for_data_reloc;
ffe_ctl.policy = BTRFS_EXTENT_ALLOC_CLUSTERED;
/* For clustered allocation */
@ -4220,6 +4267,8 @@ static noinline int find_free_extent(struct btrfs_root *root,
if (unlikely(block_group->ro)) {
if (for_treelog)
btrfs_clear_treelog_bg(block_group);
if (ffe_ctl.for_data_reloc)
btrfs_clear_data_reloc_bg(block_group);
continue;
}
@ -4408,6 +4457,7 @@ int btrfs_reserve_extent(struct btrfs_root *root, u64 ram_bytes,
u64 flags;
int ret;
bool for_treelog = (root->root_key.objectid == BTRFS_TREE_LOG_OBJECTID);
bool for_data_reloc = (btrfs_is_data_reloc_root(root) && is_data);
flags = get_alloc_profile_by_root(root, is_data);
again:
@ -4431,8 +4481,8 @@ int btrfs_reserve_extent(struct btrfs_root *root, u64 ram_bytes,
sinfo = btrfs_find_space_info(fs_info, flags);
btrfs_err(fs_info,
"allocation failed flags %llu, wanted %llu tree-log %d",
flags, num_bytes, for_treelog);
"allocation failed flags %llu, wanted %llu tree-log %d, relocation: %d",
flags, num_bytes, for_treelog, for_data_reloc);
if (sinfo)
btrfs_dump_space_info(fs_info, sinfo,
num_bytes, 1);

11
fs/btrfs/extent_io.c
View File

@ -5120,6 +5120,9 @@ int extent_write_locked_range(struct inode *inode, u64 start, u64 end,
int extent_writepages(struct address_space *mapping,
struct writeback_control *wbc)
{
struct inode *inode = mapping->host;
const bool data_reloc = btrfs_is_data_reloc_root(BTRFS_I(inode)->root);
const bool zoned = btrfs_is_zoned(BTRFS_I(inode)->root->fs_info);
int ret = 0;
struct extent_page_data epd = {
.bio_ctrl = { 0 },
@ -5127,7 +5130,15 @@ int extent_writepages(struct address_space *mapping,
.sync_io = wbc->sync_mode == WB_SYNC_ALL,
};
/*
* Allow only a single thread to do the reloc work in zoned mode to
* protect the write pointer updates.
*/
if (data_reloc && zoned)
btrfs_inode_lock(inode, 0);
ret = extent_write_cache_pages(mapping, wbc, &epd);
if (data_reloc && zoned)
btrfs_inode_unlock(inode, 0);
ASSERT(ret <= 0);
if (ret < 0) {
end_write_bio(&epd, ret);

29
fs/btrfs/inode.c
View File

@ -1151,7 +1151,7 @@ static noinline int cow_file_range(struct btrfs_inode *inode,
* fails during the stage where it updates the bytenr of file extent
* items.
*/
if (root->root_key.objectid == BTRFS_DATA_RELOC_TREE_OBJECTID)
if (btrfs_is_data_reloc_root(root))
min_alloc_size = num_bytes;
else
min_alloc_size = fs_info->sectorsize;
@ -1187,8 +1187,7 @@ static noinline int cow_file_range(struct btrfs_inode *inode,
if (ret)
goto out_drop_extent_cache;
if (root->root_key.objectid ==
BTRFS_DATA_RELOC_TREE_OBJECTID) {
if (btrfs_is_data_reloc_root(root)) {
ret = btrfs_reloc_clone_csums(inode, start,
cur_alloc_size);
/*
@ -1504,8 +1503,7 @@ static int fallback_to_cow(struct btrfs_inode *inode, struct page *locked_page,
int *page_started, unsigned long *nr_written)
{
const bool is_space_ino = btrfs_is_free_space_inode(inode);
const bool is_reloc_ino = (inode->root->root_key.objectid ==
BTRFS_DATA_RELOC_TREE_OBJECTID);
const bool is_reloc_ino = btrfs_is_data_reloc_root(inode->root);
const u64 range_bytes = end + 1 - start;
struct extent_io_tree *io_tree = &inode->io_tree;
u64 range_start = start;
@ -1867,8 +1865,7 @@ static noinline int run_delalloc_nocow(struct btrfs_inode *inode,
btrfs_dec_nocow_writers(fs_info, disk_bytenr);
nocow = false;
if (root->root_key.objectid ==
BTRFS_DATA_RELOC_TREE_OBJECTID)
if (btrfs_is_data_reloc_root(root))
/*
* Error handled later, as we must prevent
* extent_clear_unlock_delalloc() in error handler
@ -1948,7 +1945,15 @@ int btrfs_run_delalloc_range(struct btrfs_inode *inode, struct page *locked_page
const bool zoned = btrfs_is_zoned(inode->root->fs_info);
if (should_nocow(inode, start, end)) {
ASSERT(!zoned);
/*
* Normally on a zoned device we're only doing COW writes, but
* in case of relocation on a zoned filesystem we have taken
* precaution, that we're only writing sequentially. It's safe
* to use run_delalloc_nocow() here, like for regular
* preallocated inodes.
*/
ASSERT(!zoned ||
(zoned && btrfs_is_data_reloc_root(inode->root)));
ret = run_delalloc_nocow(inode, locked_page, start, end,
page_started, nr_written);
} else if (!inode_can_compress(inode) ||
@ -2207,7 +2212,7 @@ void btrfs_clear_delalloc_extent(struct inode *vfs_inode,
if (btrfs_is_testing(fs_info))
return;
if (root->root_key.objectid != BTRFS_DATA_RELOC_TREE_OBJECTID &&
if (!btrfs_is_data_reloc_root(root) &&
do_list && !(state->state & EXTENT_NORESERVE) &&
(*bits & EXTENT_CLEAR_DATA_RESV))
btrfs_free_reserved_data_space_noquota(fs_info, len);
@ -2532,7 +2537,7 @@ blk_status_t btrfs_submit_data_bio(struct inode *inode, struct bio *bio,
goto mapit;
} else if (async && !skip_sum) {
/* csum items have already been cloned */
if (root->root_key.objectid == BTRFS_DATA_RELOC_TREE_OBJECTID)
if (btrfs_is_data_reloc_root(root))
goto mapit;
/* we're doing a write, do the async checksumming */
ret = btrfs_wq_submit_bio(inode, bio, mirror_num, bio_flags,
@ -3304,7 +3309,7 @@ unsigned int btrfs_verify_data_csum(struct btrfs_io_bio *io_bio, u32 bio_offset,
u64 file_offset = pg_off + page_offset(page);
int ret;
if (root->root_key.objectid == BTRFS_DATA_RELOC_TREE_OBJECTID &&
if (btrfs_is_data_reloc_root(root) &&
test_range_bit(io_tree, file_offset,
file_offset + sectorsize - 1,
EXTENT_NODATASUM, 1, NULL)) {
@ -4005,7 +4010,7 @@ noinline int btrfs_update_inode(struct btrfs_trans_handle *trans,
* without delay
*/
if (!btrfs_is_free_space_inode(inode)
&& root->root_key.objectid != BTRFS_DATA_RELOC_TREE_OBJECTID
&& !btrfs_is_data_reloc_root(root)
&& !test_bit(BTRFS_FS_LOG_RECOVERING, &fs_info->flags)) {
btrfs_update_root_times(trans, root);

38
fs/btrfs/relocation.c
View File

@ -2852,31 +2852,6 @@ static noinline_for_stack int prealloc_file_extent_cluster(
if (ret)
return ret;
/*
* On a zoned filesystem, we cannot preallocate the file region.
* Instead, we dirty and fiemap_write the region.
*/
if (btrfs_is_zoned(inode->root->fs_info)) {
struct btrfs_root *root = inode->root;
struct btrfs_trans_handle *trans;
end = cluster->end - offset + 1;
trans = btrfs_start_transaction(root, 1);
if (IS_ERR(trans))
return PTR_ERR(trans);
inode->vfs_inode.i_ctime = current_time(&inode->vfs_inode);
i_size_write(&inode->vfs_inode, end);
ret = btrfs_update_inode(trans, root, inode);
if (ret) {
btrfs_abort_transaction(trans, ret);
btrfs_end_transaction(trans);
return ret;
}
return btrfs_end_transaction(trans);
}
btrfs_inode_lock(&inode->vfs_inode, 0);
for (nr = 0; nr < cluster->nr; nr++) {
start = cluster->boundary[nr] - offset;
@ -3084,7 +3059,6 @@ static int relocate_one_page(struct inode *inode, struct file_ra_state *ra,
static int relocate_file_extent_cluster(struct inode *inode,
struct file_extent_cluster *cluster)
{
struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
u64 offset = BTRFS_I(inode)->index_cnt;
unsigned long index;
unsigned long last_index;
@ -3114,8 +3088,6 @@ static int relocate_file_extent_cluster(struct inode *inode,
for (index = (cluster->start - offset) >> PAGE_SHIFT;
index <= last_index && !ret; index++)
ret = relocate_one_page(inode, ra, cluster, &cluster_nr, index);
if (btrfs_is_zoned(fs_info) && !ret)
ret = btrfs_wait_ordered_range(inode, 0, (u64)-1);
if (ret == 0)
WARN_ON(cluster_nr != cluster->nr);
out:
@ -3770,12 +3742,8 @@ static int __insert_orphan_inode(struct btrfs_trans_handle *trans,
struct btrfs_path *path;
struct btrfs_inode_item *item;
struct extent_buffer *leaf;
u64 flags = BTRFS_INODE_NOCOMPRESS | BTRFS_INODE_PREALLOC;
int ret;
if (btrfs_is_zoned(trans->fs_info))
flags &= ~BTRFS_INODE_PREALLOC;
path = btrfs_alloc_path();
if (!path)
return -ENOMEM;
@ -3790,7 +3758,8 @@ static int __insert_orphan_inode(struct btrfs_trans_handle *trans,
btrfs_set_inode_generation(leaf, item, 1);
btrfs_set_inode_size(leaf, item, 0);
btrfs_set_inode_mode(leaf, item, S_IFREG | 0600);
btrfs_set_inode_flags(leaf, item, flags);
btrfs_set_inode_flags(leaf, item, BTRFS_INODE_NOCOMPRESS |
BTRFS_INODE_PREALLOC);
btrfs_mark_buffer_dirty(leaf);
out:
btrfs_free_path(path);
@ -4386,8 +4355,7 @@ int btrfs_reloc_cow_block(struct btrfs_trans_handle *trans,
if (!rc)
return 0;
BUG_ON(rc->stage == UPDATE_DATA_PTRS &&
root->root_key.objectid == BTRFS_DATA_RELOC_TREE_OBJECTID);
BUG_ON(rc->stage == UPDATE_DATA_PTRS && btrfs_is_data_reloc_root(root));
level = btrfs_header_level(buf);
if (btrfs_header_generation(buf) <=

21
fs/btrfs/zoned.c
View File

@ -1304,6 +1304,17 @@ bool btrfs_use_zone_append(struct btrfs_inode *inode, u64 start)
if (!is_data_inode(&inode->vfs_inode))
return false;
/*
* Using REQ_OP_ZONE_APPNED for relocation can break assumptions on the
* extent layout the relocation code has.
* Furthermore we have set aside own block-group from which only the
* relocation "process" can allocate and make sure only one process at a
* time can add pages to an extent that gets relocated, so it's safe to
* use regular REQ_OP_WRITE for this special case.
*/
if (btrfs_is_data_reloc_root(inode->root))
return false;
cache = btrfs_lookup_block_group(fs_info, start);
ASSERT(cache);
if (!cache)
@ -1530,3 +1541,13 @@ struct btrfs_device *btrfs_zoned_get_device(struct btrfs_fs_info *fs_info,
return device;
}
void btrfs_clear_data_reloc_bg(struct btrfs_block_group *bg)
{
struct btrfs_fs_info *fs_info = bg->fs_info;
spin_lock(&fs_info->relocation_bg_lock);
if (fs_info->data_reloc_bg == bg->start)
fs_info->data_reloc_bg = 0;
spin_unlock(&fs_info->relocation_bg_lock);
}

3
fs/btrfs/zoned.h
View File

@ -66,6 +66,7 @@ int btrfs_sync_zone_write_pointer(struct btrfs_device *tgt_dev, u64 logical,
u64 physical_start, u64 physical_pos);
struct btrfs_device *btrfs_zoned_get_device(struct btrfs_fs_info *fs_info,
u64 logical, u64 length);
void btrfs_clear_data_reloc_bg(struct btrfs_block_group *bg);
#else /* CONFIG_BLK_DEV_ZONED */
static inline int btrfs_get_dev_zone(struct btrfs_device *device, u64 pos,
struct blk_zone *zone)
@ -199,6 +200,8 @@ static inline struct btrfs_device *btrfs_zoned_get_device(
return ERR_PTR(-EOPNOTSUPP);
}
static inline void btrfs_clear_data_reloc_bg(struct btrfs_block_group *bg) { }
#endif
static inline bool btrfs_dev_is_sequential(struct btrfs_device *device, u64 pos)

8
include/linux/blkdev.h
View File

@ -235,6 +235,14 @@ struct request {
void *end_io_data;
};
static inline int blk_validate_block_size(unsigned int bsize)
{
if (bsize < 512 || bsize > PAGE_SIZE || !is_power_of_2(bsize))
return -EINVAL;
return 0;
}
static inline bool blk_op_is_passthrough(unsigned int op)
{
op &= REQ_OP_MASK;

2
include/linux/pci.h
View File

@ -233,6 +233,8 @@ enum pci_dev_flags {
PCI_DEV_FLAGS_NO_FLR_RESET = (__force pci_dev_flags_t) (1 << 10),
/* Don't use Relaxed Ordering for TLPs directed at this device */
PCI_DEV_FLAGS_NO_RELAXED_ORDERING = (__force pci_dev_flags_t) (1 << 11),
/* Device does honor MSI masking despite saying otherwise */
PCI_DEV_FLAGS_HAS_MSI_MASKING = (__force pci_dev_flags_t) (1 << 12),
};
enum pci_irq_reroute_variant {

19
include/linux/string.h
View File

@ -262,23 +262,8 @@ void __write_overflow(void) __compiletime_error("detected write beyond size of o
#include <linux/fortify-string.h>
#endif
/**
* memcpy_and_pad - Copy one buffer to another with padding
* @dest: Where to copy to
* @dest_len: The destination buffer size
* @src: Where to copy from
* @count: The number of bytes to copy
* @pad: Character to use for padding if space is left in destination.
*/
static inline void memcpy_and_pad(void *dest, size_t dest_len,
const void *src, size_t count, int pad)
{
if (dest_len > count) {
memcpy(dest, src, count);
memset(dest + count, pad, dest_len - count);
} else
memcpy(dest, src, dest_len);
}
void memcpy_and_pad(void *dest, size_t dest_len, const void *src, size_t count,
int pad);
/**
* str_has_prefix - Test if a string has a given prefix

10
kernel/events/core.c
View File

@ -7155,7 +7155,6 @@ void perf_output_sample(struct perf_output_handle *handle,
static u64 perf_virt_to_phys(u64 virt)
{
u64 phys_addr = 0;
struct page *p = NULL;
if (!virt)
return 0;
@ -7174,14 +7173,15 @@ static u64 perf_virt_to_phys(u64 virt)
* If failed, leave phys_addr as 0.
*/
if (current->mm != NULL) {
struct page *p;
pagefault_disable();
if (get_user_page_fast_only(virt, 0, &p))
if (get_user_page_fast_only(virt, 0, &p)) {
phys_addr = page_to_phys(p) + virt % PAGE_SIZE;
put_page(p);
}
pagefault_enable();
}
if (p)
put_page(p);
}
return phys_addr;

20
lib/string_helpers.c
View File

@ -696,3 +696,23 @@ void kfree_strarray(char **array, size_t n)
kfree(array);
}
EXPORT_SYMBOL_GPL(kfree_strarray);
/**
* memcpy_and_pad - Copy one buffer to another with padding
* @dest: Where to copy to
* @dest_len: The destination buffer size
* @src: Where to copy from
* @count: The number of bytes to copy
* @pad: Character to use for padding if space is left in destination.
*/
void memcpy_and_pad(void *dest, size_t dest_len, const void *src, size_t count,
int pad)
{
if (dest_len > count) {
memcpy(dest, src, count);
memset(dest + count, pad, dest_len - count);
} else {
memcpy(dest, src, dest_len);
}
}
EXPORT_SYMBOL(memcpy_and_pad);

3
security/Kconfig
View File

@ -191,6 +191,9 @@ config HARDENED_USERCOPY_PAGESPAN
config FORTIFY_SOURCE
bool "Harden common str/mem functions against buffer overflows"
depends on ARCH_HAS_FORTIFY_SOURCE
# https://bugs.llvm.org/show_bug.cgi?id=50322
# https://bugs.llvm.org/show_bug.cgi?id=41459
depends on !CC_IS_CLANG
help
Detect overflows of buffers in common string and memory functions
where the compiler can determine and validate the buffer sizes.