mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
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8 hotfixes, 3 are cc:stable
There are a couple of fixups for this cycle's vmalloc changes and one for the stackdepot changes. And a fix for a very old x86 PAT issue which can cause a warning splat. -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCZhBEXAAKCRDdBJ7gKXxA ju9fAQCxPdqApKQ49IAJpUtMcRJmI594dmB+/CfrFgiS+GaQcwEA1+2SidI9fQWT R/fcKrRr4+zlgQw0T0aSDR1HBLUPxw0= =rkxT -----END PGP SIGNATURE----- Merge tag 'mm-hotfixes-stable-2024-04-05-11-30' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull misc fixes from Andrew Morton: "8 hotfixes, 3 are cc:stable There are a couple of fixups for this cycle's vmalloc changes and one for the stackdepot changes. And a fix for a very old x86 PAT issue which can cause a warning splat" * tag 'mm-hotfixes-stable-2024-04-05-11-30' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: stackdepot: rename pool_index to pool_index_plus_1 x86/mm/pat: fix VM_PAT handling in COW mappings MAINTAINERS: change vmware.com addresses to broadcom.com selftests/mm: include strings.h for ffsl mm: vmalloc: fix lockdep warning mm: vmalloc: bail out early in find_vmap_area() if vmap is not init init: open output files from cpio unpacking with O_LARGEFILE mm/secretmem: fix GUP-fast succeeding on secretmem folios
This commit is contained in:
Linus Torvalds
commit
af709adfaa
5
.mailmap
5
.mailmap
@ -20,6 +20,7 @@ Adam Oldham <oldhamca@gmail.com>
|
||||
Adam Radford <aradford@gmail.com>
|
||||
Adriana Reus <adi.reus@gmail.com> <adriana.reus@intel.com>
|
||||
Adrian Bunk <bunk@stusta.de>
|
||||
Ajay Kaher <ajay.kaher@broadcom.com> <akaher@vmware.com>
|
||||
Akhil P Oommen <quic_akhilpo@quicinc.com> <akhilpo@codeaurora.org>
|
||||
Alan Cox <alan@lxorguk.ukuu.org.uk>
|
||||
Alan Cox <root@hraefn.swansea.linux.org.uk>
|
||||
@ -36,6 +37,7 @@ Alexei Avshalom Lazar <quic_ailizaro@quicinc.com> <ailizaro@codeaurora.org>
|
||||
Alexei Starovoitov <ast@kernel.org> <alexei.starovoitov@gmail.com>
|
||||
Alexei Starovoitov <ast@kernel.org> <ast@fb.com>
|
||||
Alexei Starovoitov <ast@kernel.org> <ast@plumgrid.com>
|
||||
Alexey Makhalov <alexey.amakhalov@broadcom.com> <amakhalov@vmware.com>
|
||||
Alex Hung <alexhung@gmail.com> <alex.hung@canonical.com>
|
||||
Alex Shi <alexs@kernel.org> <alex.shi@intel.com>
|
||||
Alex Shi <alexs@kernel.org> <alex.shi@linaro.org>
|
||||
@ -110,6 +112,7 @@ Brendan Higgins <brendan.higgins@linux.dev> <brendanhiggins@google.com>
|
||||
Brian Avery <b.avery@hp.com>
|
||||
Brian King <brking@us.ibm.com>
|
||||
Brian Silverman <bsilver16384@gmail.com> <brian.silverman@bluerivertech.com>
|
||||
Bryan Tan <bryan-bt.tan@broadcom.com> <bryantan@vmware.com>
|
||||
Cai Huoqing <cai.huoqing@linux.dev> <caihuoqing@baidu.com>
|
||||
Can Guo <quic_cang@quicinc.com> <cang@codeaurora.org>
|
||||
Carl Huang <quic_cjhuang@quicinc.com> <cjhuang@codeaurora.org>
|
||||
@ -529,6 +532,7 @@ Rocky Liao <quic_rjliao@quicinc.com> <rjliao@codeaurora.org>
|
||||
Roman Gushchin <roman.gushchin@linux.dev> <guro@fb.com>
|
||||
Roman Gushchin <roman.gushchin@linux.dev> <guroan@gmail.com>
|
||||
Roman Gushchin <roman.gushchin@linux.dev> <klamm@yandex-team.ru>
|
||||
Ronak Doshi <ronak.doshi@broadcom.com> <doshir@vmware.com>
|
||||
Muchun Song <muchun.song@linux.dev> <songmuchun@bytedance.com>
|
||||
Muchun Song <muchun.song@linux.dev> <smuchun@gmail.com>
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||||
Ross Zwisler <zwisler@kernel.org> <ross.zwisler@linux.intel.com>
|
||||
@ -651,6 +655,7 @@ Viresh Kumar <vireshk@kernel.org> <viresh.kumar@st.com>
|
||||
Viresh Kumar <vireshk@kernel.org> <viresh.linux@gmail.com>
|
||||
Viresh Kumar <viresh.kumar@linaro.org> <viresh.kumar@linaro.org>
|
||||
Viresh Kumar <viresh.kumar@linaro.org> <viresh.kumar@linaro.com>
|
||||
Vishnu Dasa <vishnu.dasa@broadcom.com> <vdasa@vmware.com>
|
||||
Vivek Aknurwar <quic_viveka@quicinc.com> <viveka@codeaurora.org>
|
||||
Vivien Didelot <vivien.didelot@gmail.com> <vivien.didelot@savoirfairelinux.com>
|
||||
Vlad Dogaru <ddvlad@gmail.com> <vlad.dogaru@intel.com>
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||||
|
||||
45
MAINTAINERS
45
MAINTAINERS
@ -16733,9 +16733,9 @@ F: include/uapi/linux/ppdev.h
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||||
|
||||
PARAVIRT_OPS INTERFACE
|
||||
M: Juergen Gross <jgross@suse.com>
|
||||
R: Ajay Kaher <akaher@vmware.com>
|
||||
R: Alexey Makhalov <amakhalov@vmware.com>
|
||||
R: VMware PV-Drivers Reviewers <pv-drivers@vmware.com>
|
||||
R: Ajay Kaher <ajay.kaher@broadcom.com>
|
||||
R: Alexey Makhalov <alexey.amakhalov@broadcom.com>
|
||||
R: Broadcom internal kernel review list <bcm-kernel-feedback-list@broadcom.com>
|
||||
L: virtualization@lists.linux.dev
|
||||
L: x86@kernel.org
|
||||
S: Supported
|
||||
@ -23654,9 +23654,9 @@ S: Supported
|
||||
F: drivers/misc/vmw_balloon.c
|
||||
|
||||
VMWARE HYPERVISOR INTERFACE
|
||||
M: Ajay Kaher <akaher@vmware.com>
|
||||
M: Alexey Makhalov <amakhalov@vmware.com>
|
||||
R: VMware PV-Drivers Reviewers <pv-drivers@vmware.com>
|
||||
M: Ajay Kaher <ajay.kaher@broadcom.com>
|
||||
M: Alexey Makhalov <alexey.amakhalov@broadcom.com>
|
||||
R: Broadcom internal kernel review list <bcm-kernel-feedback-list@broadcom.com>
|
||||
L: virtualization@lists.linux.dev
|
||||
L: x86@kernel.org
|
||||
S: Supported
|
||||
@ -23665,33 +23665,34 @@ F: arch/x86/include/asm/vmware.h
|
||||
F: arch/x86/kernel/cpu/vmware.c
|
||||
|
||||
VMWARE PVRDMA DRIVER
|
||||
M: Bryan Tan <bryantan@vmware.com>
|
||||
M: Vishnu Dasa <vdasa@vmware.com>
|
||||
R: VMware PV-Drivers Reviewers <pv-drivers@vmware.com>
|
||||
M: Bryan Tan <bryan-bt.tan@broadcom.com>
|
||||
M: Vishnu Dasa <vishnu.dasa@broadcom.com>
|
||||
R: Broadcom internal kernel review list <bcm-kernel-feedback-list@broadcom.com>
|
||||
L: linux-rdma@vger.kernel.org
|
||||
S: Supported
|
||||
F: drivers/infiniband/hw/vmw_pvrdma/
|
||||
|
||||
VMWARE PVSCSI DRIVER
|
||||
M: Vishal Bhakta <vbhakta@vmware.com>
|
||||
R: VMware PV-Drivers Reviewers <pv-drivers@vmware.com>
|
||||
M: Vishal Bhakta <vishal.bhakta@broadcom.com>
|
||||
R: Broadcom internal kernel review list <bcm-kernel-feedback-list@broadcom.com>
|
||||
L: linux-scsi@vger.kernel.org
|
||||
S: Supported
|
||||
F: drivers/scsi/vmw_pvscsi.c
|
||||
F: drivers/scsi/vmw_pvscsi.h
|
||||
|
||||
VMWARE VIRTUAL PTP CLOCK DRIVER
|
||||
R: Ajay Kaher <akaher@vmware.com>
|
||||
R: Alexey Makhalov <amakhalov@vmware.com>
|
||||
R: VMware PV-Drivers Reviewers <pv-drivers@vmware.com>
|
||||
M: Nick Shi <nick.shi@broadcom.com>
|
||||
R: Ajay Kaher <ajay.kaher@broadcom.com>
|
||||
R: Alexey Makhalov <alexey.amakhalov@broadcom.com>
|
||||
R: Broadcom internal kernel review list <bcm-kernel-feedback-list@broadcom.com>
|
||||
L: netdev@vger.kernel.org
|
||||
S: Supported
|
||||
F: drivers/ptp/ptp_vmw.c
|
||||
|
||||
VMWARE VMCI DRIVER
|
||||
M: Bryan Tan <bryantan@vmware.com>
|
||||
M: Vishnu Dasa <vdasa@vmware.com>
|
||||
R: VMware PV-Drivers Reviewers <pv-drivers@vmware.com>
|
||||
M: Bryan Tan <bryan-bt.tan@broadcom.com>
|
||||
M: Vishnu Dasa <vishnu.dasa@broadcom.com>
|
||||
R: Broadcom internal kernel review list <bcm-kernel-feedback-list@broadcom.com>
|
||||
L: linux-kernel@vger.kernel.org
|
||||
S: Supported
|
||||
F: drivers/misc/vmw_vmci/
|
||||
@ -23706,16 +23707,16 @@ F: drivers/input/mouse/vmmouse.c
|
||||
F: drivers/input/mouse/vmmouse.h
|
||||
|
||||
VMWARE VMXNET3 ETHERNET DRIVER
|
||||
M: Ronak Doshi <doshir@vmware.com>
|
||||
R: VMware PV-Drivers Reviewers <pv-drivers@vmware.com>
|
||||
M: Ronak Doshi <ronak.doshi@broadcom.com>
|
||||
R: Broadcom internal kernel review list <bcm-kernel-feedback-list@broadcom.com>
|
||||
L: netdev@vger.kernel.org
|
||||
S: Supported
|
||||
F: drivers/net/vmxnet3/
|
||||
|
||||
VMWARE VSOCK VMCI TRANSPORT DRIVER
|
||||
M: Bryan Tan <bryantan@vmware.com>
|
||||
M: Vishnu Dasa <vdasa@vmware.com>
|
||||
R: VMware PV-Drivers Reviewers <pv-drivers@vmware.com>
|
||||
M: Bryan Tan <bryan-bt.tan@broadcom.com>
|
||||
M: Vishnu Dasa <vishnu.dasa@broadcom.com>
|
||||
R: Broadcom internal kernel review list <bcm-kernel-feedback-list@broadcom.com>
|
||||
L: linux-kernel@vger.kernel.org
|
||||
S: Supported
|
||||
F: net/vmw_vsock/vmci_transport*
|
||||
|
||||
@ -947,6 +947,38 @@ static void free_pfn_range(u64 paddr, unsigned long size)
|
||||
memtype_free(paddr, paddr + size);
|
||||
}
|
||||
|
||||
static int get_pat_info(struct vm_area_struct *vma, resource_size_t *paddr,
|
||||
pgprot_t *pgprot)
|
||||
{
|
||||
unsigned long prot;
|
||||
|
||||
VM_WARN_ON_ONCE(!(vma->vm_flags & VM_PAT));
|
||||
|
||||
/*
|
||||
* We need the starting PFN and cachemode used for track_pfn_remap()
|
||||
* that covered the whole VMA. For most mappings, we can obtain that
|
||||
* information from the page tables. For COW mappings, we might now
|
||||
* suddenly have anon folios mapped and follow_phys() will fail.
|
||||
*
|
||||
* Fallback to using vma->vm_pgoff, see remap_pfn_range_notrack(), to
|
||||
* detect the PFN. If we need the cachemode as well, we're out of luck
|
||||
* for now and have to fail fork().
|
||||
*/
|
||||
if (!follow_phys(vma, vma->vm_start, 0, &prot, paddr)) {
|
||||
if (pgprot)
|
||||
*pgprot = __pgprot(prot);
|
||||
return 0;
|
||||
}
|
||||
if (is_cow_mapping(vma->vm_flags)) {
|
||||
if (pgprot)
|
||||
return -EINVAL;
|
||||
*paddr = (resource_size_t)vma->vm_pgoff << PAGE_SHIFT;
|
||||
return 0;
|
||||
}
|
||||
WARN_ON_ONCE(1);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
/*
|
||||
* track_pfn_copy is called when vma that is covering the pfnmap gets
|
||||
* copied through copy_page_range().
|
||||
@ -957,20 +989,13 @@ static void free_pfn_range(u64 paddr, unsigned long size)
|
||||
int track_pfn_copy(struct vm_area_struct *vma)
|
||||
{
|
||||
resource_size_t paddr;
|
||||
unsigned long prot;
|
||||
unsigned long vma_size = vma->vm_end - vma->vm_start;
|
||||
pgprot_t pgprot;
|
||||
|
||||
if (vma->vm_flags & VM_PAT) {
|
||||
/*
|
||||
* reserve the whole chunk covered by vma. We need the
|
||||
* starting address and protection from pte.
|
||||
*/
|
||||
if (follow_phys(vma, vma->vm_start, 0, &prot, &paddr)) {
|
||||
WARN_ON_ONCE(1);
|
||||
if (get_pat_info(vma, &paddr, &pgprot))
|
||||
return -EINVAL;
|
||||
}
|
||||
pgprot = __pgprot(prot);
|
||||
/* reserve the whole chunk covered by vma. */
|
||||
return reserve_pfn_range(paddr, vma_size, &pgprot, 1);
|
||||
}
|
||||
|
||||
@ -1045,7 +1070,6 @@ void untrack_pfn(struct vm_area_struct *vma, unsigned long pfn,
|
||||
unsigned long size, bool mm_wr_locked)
|
||||
{
|
||||
resource_size_t paddr;
|
||||
unsigned long prot;
|
||||
|
||||
if (vma && !(vma->vm_flags & VM_PAT))
|
||||
return;
|
||||
@ -1053,11 +1077,8 @@ void untrack_pfn(struct vm_area_struct *vma, unsigned long pfn,
|
||||
/* free the chunk starting from pfn or the whole chunk */
|
||||
paddr = (resource_size_t)pfn << PAGE_SHIFT;
|
||||
if (!paddr && !size) {
|
||||
if (follow_phys(vma, vma->vm_start, 0, &prot, &paddr)) {
|
||||
WARN_ON_ONCE(1);
|
||||
if (get_pat_info(vma, &paddr, NULL))
|
||||
return;
|
||||
}
|
||||
|
||||
size = vma->vm_end - vma->vm_start;
|
||||
}
|
||||
free_pfn_range(paddr, size);
|
||||
|
||||
@ -13,10 +13,10 @@ static inline bool folio_is_secretmem(struct folio *folio)
|
||||
/*
|
||||
* Using folio_mapping() is quite slow because of the actual call
|
||||
* instruction.
|
||||
* We know that secretmem pages are not compound and LRU so we can
|
||||
* We know that secretmem pages are not compound, so we can
|
||||
* save a couple of cycles here.
|
||||
*/
|
||||
if (folio_test_large(folio) || !folio_test_lru(folio))
|
||||
if (folio_test_large(folio))
|
||||
return false;
|
||||
|
||||
mapping = (struct address_space *)
|
||||
|
||||
@ -44,10 +44,9 @@ typedef u32 depot_stack_handle_t;
|
||||
union handle_parts {
|
||||
depot_stack_handle_t handle;
|
||||
struct {
|
||||
/* pool_index is offset by 1 */
|
||||
u32 pool_index : DEPOT_POOL_INDEX_BITS;
|
||||
u32 offset : DEPOT_OFFSET_BITS;
|
||||
u32 extra : STACK_DEPOT_EXTRA_BITS;
|
||||
u32 pool_index_plus_1 : DEPOT_POOL_INDEX_BITS;
|
||||
u32 offset : DEPOT_OFFSET_BITS;
|
||||
u32 extra : STACK_DEPOT_EXTRA_BITS;
|
||||
};
|
||||
};
|
||||
|
||||
|
||||
@ -367,7 +367,7 @@ static int __init do_name(void)
|
||||
if (S_ISREG(mode)) {
|
||||
int ml = maybe_link();
|
||||
if (ml >= 0) {
|
||||
int openflags = O_WRONLY|O_CREAT;
|
||||
int openflags = O_WRONLY|O_CREAT|O_LARGEFILE;
|
||||
if (ml != 1)
|
||||
openflags |= O_TRUNC;
|
||||
wfile = filp_open(collected, openflags, mode);
|
||||
|
||||
@ -330,7 +330,7 @@ static struct stack_record *depot_pop_free_pool(void **prealloc, size_t size)
|
||||
stack = current_pool + pool_offset;
|
||||
|
||||
/* Pre-initialize handle once. */
|
||||
stack->handle.pool_index = pool_index + 1;
|
||||
stack->handle.pool_index_plus_1 = pool_index + 1;
|
||||
stack->handle.offset = pool_offset >> DEPOT_STACK_ALIGN;
|
||||
stack->handle.extra = 0;
|
||||
INIT_LIST_HEAD(&stack->hash_list);
|
||||
@ -441,7 +441,7 @@ static struct stack_record *depot_fetch_stack(depot_stack_handle_t handle)
|
||||
const int pools_num_cached = READ_ONCE(pools_num);
|
||||
union handle_parts parts = { .handle = handle };
|
||||
void *pool;
|
||||
u32 pool_index = parts.pool_index - 1;
|
||||
u32 pool_index = parts.pool_index_plus_1 - 1;
|
||||
size_t offset = parts.offset << DEPOT_STACK_ALIGN;
|
||||
struct stack_record *stack;
|
||||
|
||||
|
||||
@ -5973,6 +5973,10 @@ int follow_phys(struct vm_area_struct *vma,
|
||||
goto out;
|
||||
pte = ptep_get(ptep);
|
||||
|
||||
/* Never return PFNs of anon folios in COW mappings. */
|
||||
if (vm_normal_folio(vma, address, pte))
|
||||
goto unlock;
|
||||
|
||||
if ((flags & FOLL_WRITE) && !pte_write(pte))
|
||||
goto unlock;
|
||||
|
||||
|
||||
74
mm/vmalloc.c
74
mm/vmalloc.c
@ -989,6 +989,27 @@ unsigned long vmalloc_nr_pages(void)
|
||||
return atomic_long_read(&nr_vmalloc_pages);
|
||||
}
|
||||
|
||||
static struct vmap_area *__find_vmap_area(unsigned long addr, struct rb_root *root)
|
||||
{
|
||||
struct rb_node *n = root->rb_node;
|
||||
|
||||
addr = (unsigned long)kasan_reset_tag((void *)addr);
|
||||
|
||||
while (n) {
|
||||
struct vmap_area *va;
|
||||
|
||||
va = rb_entry(n, struct vmap_area, rb_node);
|
||||
if (addr < va->va_start)
|
||||
n = n->rb_left;
|
||||
else if (addr >= va->va_end)
|
||||
n = n->rb_right;
|
||||
else
|
||||
return va;
|
||||
}
|
||||
|
||||
return NULL;
|
||||
}
|
||||
|
||||
/* Look up the first VA which satisfies addr < va_end, NULL if none. */
|
||||
static struct vmap_area *
|
||||
__find_vmap_area_exceed_addr(unsigned long addr, struct rb_root *root)
|
||||
@ -1025,47 +1046,39 @@ __find_vmap_area_exceed_addr(unsigned long addr, struct rb_root *root)
|
||||
static struct vmap_node *
|
||||
find_vmap_area_exceed_addr_lock(unsigned long addr, struct vmap_area **va)
|
||||
{
|
||||
struct vmap_node *vn, *va_node = NULL;
|
||||
struct vmap_area *va_lowest;
|
||||
unsigned long va_start_lowest;
|
||||
struct vmap_node *vn;
|
||||
int i;
|
||||
|
||||
for (i = 0; i < nr_vmap_nodes; i++) {
|
||||
repeat:
|
||||
for (i = 0, va_start_lowest = 0; i < nr_vmap_nodes; i++) {
|
||||
vn = &vmap_nodes[i];
|
||||
|
||||
spin_lock(&vn->busy.lock);
|
||||
va_lowest = __find_vmap_area_exceed_addr(addr, &vn->busy.root);
|
||||
if (va_lowest) {
|
||||
if (!va_node || va_lowest->va_start < (*va)->va_start) {
|
||||
if (va_node)
|
||||
spin_unlock(&va_node->busy.lock);
|
||||
*va = __find_vmap_area_exceed_addr(addr, &vn->busy.root);
|
||||
|
||||
*va = va_lowest;
|
||||
va_node = vn;
|
||||
continue;
|
||||
}
|
||||
}
|
||||
if (*va)
|
||||
if (!va_start_lowest || (*va)->va_start < va_start_lowest)
|
||||
va_start_lowest = (*va)->va_start;
|
||||
spin_unlock(&vn->busy.lock);
|
||||
}
|
||||
|
||||
return va_node;
|
||||
}
|
||||
/*
|
||||
* Check if found VA exists, it might have gone away. In this case we
|
||||
* repeat the search because a VA has been removed concurrently and we
|
||||
* need to proceed to the next one, which is a rare case.
|
||||
*/
|
||||
if (va_start_lowest) {
|
||||
vn = addr_to_node(va_start_lowest);
|
||||
|
||||
static struct vmap_area *__find_vmap_area(unsigned long addr, struct rb_root *root)
|
||||
{
|
||||
struct rb_node *n = root->rb_node;
|
||||
spin_lock(&vn->busy.lock);
|
||||
*va = __find_vmap_area(va_start_lowest, &vn->busy.root);
|
||||
|
||||
addr = (unsigned long)kasan_reset_tag((void *)addr);
|
||||
if (*va)
|
||||
return vn;
|
||||
|
||||
while (n) {
|
||||
struct vmap_area *va;
|
||||
|
||||
va = rb_entry(n, struct vmap_area, rb_node);
|
||||
if (addr < va->va_start)
|
||||
n = n->rb_left;
|
||||
else if (addr >= va->va_end)
|
||||
n = n->rb_right;
|
||||
else
|
||||
return va;
|
||||
spin_unlock(&vn->busy.lock);
|
||||
goto repeat;
|
||||
}
|
||||
|
||||
return NULL;
|
||||
@ -2343,6 +2356,9 @@ struct vmap_area *find_vmap_area(unsigned long addr)
|
||||
struct vmap_area *va;
|
||||
int i, j;
|
||||
|
||||
if (unlikely(!vmap_initialized))
|
||||
return NULL;
|
||||
|
||||
/*
|
||||
* An addr_to_node_id(addr) converts an address to a node index
|
||||
* where a VA is located. If VA spans several zones and passed
|
||||
|
||||
@ -3,7 +3,7 @@
|
||||
#include <stdbool.h>
|
||||
#include <sys/mman.h>
|
||||
#include <err.h>
|
||||
#include <string.h> /* ffsl() */
|
||||
#include <strings.h> /* ffsl() */
|
||||
#include <unistd.h> /* _SC_PAGESIZE */
|
||||
|
||||
#define BIT_ULL(nr) (1ULL << (nr))
|
||||
|
||||
Loading…
Reference in New Issue
Block a user