mirror of
https://github.com/torvalds/linux.git
synced 2026-07-29 10:41:49 +02:00
9c80e79906
1121492 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Kuniyuki Iwashima
|
9c80e79906 |
kprobes: don't call disarm_kprobe() for disabled kprobes
The assumption in __disable_kprobe() is wrong, and it could try to disarm
an already disarmed kprobe and fire the WARN_ONCE() below. [0] We can
easily reproduce this issue.
1. Write 0 to /sys/kernel/debug/kprobes/enabled.
# echo 0 > /sys/kernel/debug/kprobes/enabled
2. Run execsnoop. At this time, one kprobe is disabled.
# /usr/share/bcc/tools/execsnoop &
[1] 2460
PCOMM PID PPID RET ARGS
# cat /sys/kernel/debug/kprobes/list
ffffffff91345650 r __x64_sys_execve+0x0 [FTRACE]
ffffffff91345650 k __x64_sys_execve+0x0 [DISABLED][FTRACE]
3. Write 1 to /sys/kernel/debug/kprobes/enabled, which changes
kprobes_all_disarmed to false but does not arm the disabled kprobe.
# echo 1 > /sys/kernel/debug/kprobes/enabled
# cat /sys/kernel/debug/kprobes/list
ffffffff91345650 r __x64_sys_execve+0x0 [FTRACE]
ffffffff91345650 k __x64_sys_execve+0x0 [DISABLED][FTRACE]
4. Kill execsnoop, when __disable_kprobe() calls disarm_kprobe() for the
disabled kprobe and hits the WARN_ONCE() in __disarm_kprobe_ftrace().
# fg
/usr/share/bcc/tools/execsnoop
^C
Actually, WARN_ONCE() is fired twice, and __unregister_kprobe_top() misses
some cleanups and leaves the aggregated kprobe in the hash table. Then,
__unregister_trace_kprobe() initialises tk->rp.kp.list and creates an
infinite loop like this.
aggregated kprobe.list -> kprobe.list -.
^ |
'.__.'
In this situation, these commands fall into the infinite loop and result
in RCU stall or soft lockup.
cat /sys/kernel/debug/kprobes/list : show_kprobe_addr() enters into the
infinite loop with RCU.
/usr/share/bcc/tools/execsnoop : warn_kprobe_rereg() holds kprobe_mutex,
and __get_valid_kprobe() is stuck in
the loop.
To avoid the issue, make sure we don't call disarm_kprobe() for disabled
kprobes.
[0]
Failed to disarm kprobe-ftrace at __x64_sys_execve+0x0/0x40 (error -2)
WARNING: CPU: 6 PID: 2460 at kernel/kprobes.c:1130 __disarm_kprobe_ftrace.isra.19 (kernel/kprobes.c:1129)
Modules linked in: ena
CPU: 6 PID: 2460 Comm: execsnoop Not tainted 5.19.0+ #28
Hardware name: Amazon EC2 c5.2xlarge/, BIOS 1.0 10/16/2017
RIP: 0010:__disarm_kprobe_ftrace.isra.19 (kernel/kprobes.c:1129)
Code: 24 8b 02 eb c1 80 3d c4 83 f2 01 00 75 d4 48 8b 75 00 89 c2 48 c7 c7 90 fa 0f 92 89 04 24 c6 05 ab 83 01 e8 e4 94 f0 ff <0f> 0b 8b 04 24 eb b1 89 c6 48 c7 c7 60 fa 0f 92 89 04 24 e8 cc 94
RSP: 0018:ffff9e6ec154bd98 EFLAGS: 00010282
RAX: 0000000000000000 RBX: ffffffff930f7b00 RCX: 0000000000000001
RDX: 0000000080000001 RSI: ffffffff921461c5 RDI: 00000000ffffffff
RBP: ffff89c504286da8 R08: 0000000000000000 R09: c0000000fffeffff
R10: 0000000000000000 R11: ffff9e6ec154bc28 R12: ffff89c502394e40
R13: ffff89c502394c00 R14: ffff9e6ec154bc00 R15: 0000000000000000
FS: 00007fe800398740(0000) GS:ffff89c812d80000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c00057f010 CR3: 0000000103b54006 CR4: 00000000007706e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
PKRU: 55555554
Call Trace:
<TASK>
__disable_kprobe (kernel/kprobes.c:1716)
disable_kprobe (kernel/kprobes.c:2392)
__disable_trace_kprobe (kernel/trace/trace_kprobe.c:340)
disable_trace_kprobe (kernel/trace/trace_kprobe.c:429)
perf_trace_event_unreg.isra.2 (./include/linux/tracepoint.h:93 kernel/trace/trace_event_perf.c:168)
perf_kprobe_destroy (kernel/trace/trace_event_perf.c:295)
_free_event (kernel/events/core.c:4971)
perf_event_release_kernel (kernel/events/core.c:5176)
perf_release (kernel/events/core.c:5186)
__fput (fs/file_table.c:321)
task_work_run (./include/linux/sched.h:2056 (discriminator 1) kernel/task_work.c:179 (discriminator 1))
exit_to_user_mode_prepare (./include/linux/resume_user_mode.h:49 kernel/entry/common.c:169 kernel/entry/common.c:201)
syscall_exit_to_user_mode (./arch/x86/include/asm/jump_label.h:55 ./arch/x86/include/asm/nospec-branch.h:384 ./arch/x86/include/asm/entry-common.h:94 kernel/entry/common.c:133 kernel/entry/common.c:296)
do_syscall_64 (arch/x86/entry/common.c:87)
entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:120)
RIP: 0033:0x7fe7ff210654
Code: 15 79 89 20 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb be 0f 1f 00 8b 05 9a cd 20 00 48 63 ff 85 c0 75 11 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 3a f3 c3 48 83 ec 18 48 89 7c 24 08 e8 34 fc
RSP: 002b:00007ffdbd1d3538 EFLAGS: 00000246 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000008 RCX: 00007fe7ff210654
RDX: 0000000000000000 RSI: 0000000000002401 RDI: 0000000000000008
RBP: 0000000000000000 R08: 94ae31d6fda838a4 R0900007fe8001c9d30
R10: 00007ffdbd1d34b0 R11: 0000000000000246 R12: 00007ffdbd1d3600
R13: 0000000000000000 R14: fffffffffffffffc R15: 00007ffdbd1d3560
</TASK>
Link: https://lkml.kernel.org/r/20220813020509.90805-1-kuniyu@amazon.com
Fixes:
|
||
|
Hugh Dickins
|
76d36dea02 |
mm/shmem: shmem_replace_page() remember NR_SHMEM
Elsewhere, NR_SHMEM is updated at the same time as shmem NR_FILE_PAGES; but shmem_replace_page() was forgetting to do that - so NR_SHMEM stats could grow too big or too small, in those unusual cases when it's used. Link: https://lkml.kernel.org/r/cec7c09d-5874-e160-ada6-6e10ee48784@google.com Signed-off-by: Hugh Dickins <hughd@google.com> Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org> Cc: "Darrick J. Wong" <djwong@kernel.org> Cc: Radoslaw Burny <rburny@google.com> Cc: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
||
|
Hugh Dickins
|
15f242bb65 |
mm/shmem: tmpfs fallocate use file_modified()
5.18 fixed the btrfs and ext4 fallocates to use file_modified(), as xfs
was already doing, to drop privileges: and fstests generic/{683,684,688}
expect this. There's no need to argue over keep-size allocation (which
could just update ctime): fix shmem_fallocate() to behave the same way.
Link: https://lkml.kernel.org/r/39c5e62-4896-7795-c0a0-f79c50d4909@google.com
Signed-off-by: Hugh Dickins <hughd@google.com>
Acked-by: Christian Brauner (Microsoft) <brauner@kernel.org>
Cc: "Darrick J. Wong" <djwong@kernel.org>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Radoslaw Burny <rburny@google.com>
Cc: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
||
|
Hugh Dickins
|
cb241339b9 |
mm/shmem: fix chattr fsflags support in tmpfs
ext[234] have always allowed unimplemented chattr flags to be set, but
other filesystems have tended to be stricter. Follow the stricter
approach for tmpfs: I don't want to have to explain why csu attributes
don't actually work, and we won't need to update the chattr(1) manpage;
and it's never wrong to start off strict, relaxing later if persuaded.
Allow only a (append only) i (immutable) A (no atime) and d (no dump).
Although lsattr showed 'A' inherited, the NOATIME behavior was not being
inherited: because nothing sync'ed FS_NOATIME_FL to S_NOATIME. Add
shmem_set_inode_flags() to sync the flags, using inode_set_flags() to
avoid that instant of lost immutablility during fileattr_set().
But that change switched generic/079 from passing to failing: because
FS_IMMUTABLE_FL and FS_APPEND_FL had been unconventionally included in the
INHERITED fsflags: remove them and generic/079 is back to passing.
Link: https://lkml.kernel.org/r/2961dcb0-ddf3-b9f0-3268-12a4ff996856@google.com
Fixes:
|
||
|
David Hildenbrand
|
1d8d14641f |
mm/hugetlb: support write-faults in shared mappings
If we ever get a write-fault on a write-protected page in a shared
mapping, we'd be in trouble (again). Instead, we can simply map the page
writable.
And in fact, there is even a way right now to trigger that code via
uffd-wp ever since we stared to support it for shmem in 5.19:
--------------------------------------------------------------------------
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <fcntl.h>
#include <unistd.h>
#include <errno.h>
#include <sys/mman.h>
#include <sys/syscall.h>
#include <sys/ioctl.h>
#include <linux/userfaultfd.h>
#define HUGETLB_SIZE (2 * 1024 * 1024u)
static char *map;
int uffd;
static int temp_setup_uffd(void)
{
struct uffdio_api uffdio_api;
struct uffdio_register uffdio_register;
struct uffdio_writeprotect uffd_writeprotect;
struct uffdio_range uffd_range;
uffd = syscall(__NR_userfaultfd,
O_CLOEXEC | O_NONBLOCK | UFFD_USER_MODE_ONLY);
if (uffd < 0) {
fprintf(stderr, "syscall() failed: %d\n", errno);
return -errno;
}
uffdio_api.api = UFFD_API;
uffdio_api.features = UFFD_FEATURE_PAGEFAULT_FLAG_WP;
if (ioctl(uffd, UFFDIO_API, &uffdio_api) < 0) {
fprintf(stderr, "UFFDIO_API failed: %d\n", errno);
return -errno;
}
if (!(uffdio_api.features & UFFD_FEATURE_PAGEFAULT_FLAG_WP)) {
fprintf(stderr, "UFFD_FEATURE_WRITEPROTECT missing\n");
return -ENOSYS;
}
/* Register UFFD-WP */
uffdio_register.range.start = (unsigned long) map;
uffdio_register.range.len = HUGETLB_SIZE;
uffdio_register.mode = UFFDIO_REGISTER_MODE_WP;
if (ioctl(uffd, UFFDIO_REGISTER, &uffdio_register) < 0) {
fprintf(stderr, "UFFDIO_REGISTER failed: %d\n", errno);
return -errno;
}
/* Writeprotect a single page. */
uffd_writeprotect.range.start = (unsigned long) map;
uffd_writeprotect.range.len = HUGETLB_SIZE;
uffd_writeprotect.mode = UFFDIO_WRITEPROTECT_MODE_WP;
if (ioctl(uffd, UFFDIO_WRITEPROTECT, &uffd_writeprotect)) {
fprintf(stderr, "UFFDIO_WRITEPROTECT failed: %d\n", errno);
return -errno;
}
/* Unregister UFFD-WP without prior writeunprotection. */
uffd_range.start = (unsigned long) map;
uffd_range.len = HUGETLB_SIZE;
if (ioctl(uffd, UFFDIO_UNREGISTER, &uffd_range)) {
fprintf(stderr, "UFFDIO_UNREGISTER failed: %d\n", errno);
return -errno;
}
return 0;
}
int main(int argc, char **argv)
{
int fd;
fd = open("/dev/hugepages/tmp", O_RDWR | O_CREAT);
if (!fd) {
fprintf(stderr, "open() failed\n");
return -errno;
}
if (ftruncate(fd, HUGETLB_SIZE)) {
fprintf(stderr, "ftruncate() failed\n");
return -errno;
}
map = mmap(NULL, HUGETLB_SIZE, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0);
if (map == MAP_FAILED) {
fprintf(stderr, "mmap() failed\n");
return -errno;
}
*map = 0;
if (temp_setup_uffd())
return 1;
*map = 0;
return 0;
}
--------------------------------------------------------------------------
Above test fails with SIGBUS when there is only a single free hugetlb page.
# echo 1 > /sys/kernel/mm/hugepages/hugepages-2048kB/nr_hugepages
# ./test
Bus error (core dumped)
And worse, with sufficient free hugetlb pages it will map an anonymous page
into a shared mapping, for example, messing up accounting during unmap
and breaking MAP_SHARED semantics:
# echo 2 > /sys/kernel/mm/hugepages/hugepages-2048kB/nr_hugepages
# ./test
# cat /proc/meminfo | grep HugePages_
HugePages_Total: 2
HugePages_Free: 1
HugePages_Rsvd: 18446744073709551615
HugePages_Surp: 0
Reason is that uffd-wp doesn't clear the uffd-wp PTE bit when
unregistering and consequently keeps the PTE writeprotected. Reason for
this is to avoid the additional overhead when unregistering. Note that
this is the case also for !hugetlb and that we will end up with writable
PTEs that still have the uffd-wp PTE bit set once we return from
hugetlb_wp(). I'm not touching the uffd-wp PTE bit for now, because it
seems to be a generic thing -- wp_page_reuse() also doesn't clear it.
VM_MAYSHARE handling in hugetlb_fault() for FAULT_FLAG_WRITE indicates
that MAP_SHARED handling was at least envisioned, but could never have
worked as expected.
While at it, make sure that we never end up in hugetlb_wp() on write
faults without VM_WRITE, because we don't support maybe_mkwrite()
semantics as commonly used in the !hugetlb case -- for example, in
wp_page_reuse().
Note that there is no need to do any kind of reservation in
hugetlb_fault() in this case ... because we already have a hugetlb page
mapped R/O that we will simply map writable and we are not dealing with
COW/unsharing.
Link: https://lkml.kernel.org/r/20220811103435.188481-3-david@redhat.com
Fixes:
|
||
|
David Hildenbrand
|
f96f7a4087 |
mm/hugetlb: fix hugetlb not supporting softdirty tracking
Patch series "mm/hugetlb: fix write-fault handling for shared mappings", v2.
I observed that hugetlb does not support/expect write-faults in shared
mappings that would have to map the R/O-mapped page writable -- and I
found two case where we could currently get such faults and would
erroneously map an anon page into a shared mapping.
Reproducers part of the patches.
I propose to backport both fixes to stable trees. The first fix needs a
small adjustment.
This patch (of 2):
Staring at hugetlb_wp(), one might wonder where all the logic for shared
mappings is when stumbling over a write-protected page in a shared
mapping. In fact, there is none, and so far we thought we could get away
with that because e.g., mprotect() should always do the right thing and
map all pages directly writable.
Looks like we were wrong:
--------------------------------------------------------------------------
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <fcntl.h>
#include <unistd.h>
#include <errno.h>
#include <sys/mman.h>
#define HUGETLB_SIZE (2 * 1024 * 1024u)
static void clear_softdirty(void)
{
int fd = open("/proc/self/clear_refs", O_WRONLY);
const char *ctrl = "4";
int ret;
if (fd < 0) {
fprintf(stderr, "open(clear_refs) failed\n");
exit(1);
}
ret = write(fd, ctrl, strlen(ctrl));
if (ret != strlen(ctrl)) {
fprintf(stderr, "write(clear_refs) failed\n");
exit(1);
}
close(fd);
}
int main(int argc, char **argv)
{
char *map;
int fd;
fd = open("/dev/hugepages/tmp", O_RDWR | O_CREAT);
if (!fd) {
fprintf(stderr, "open() failed\n");
return -errno;
}
if (ftruncate(fd, HUGETLB_SIZE)) {
fprintf(stderr, "ftruncate() failed\n");
return -errno;
}
map = mmap(NULL, HUGETLB_SIZE, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0);
if (map == MAP_FAILED) {
fprintf(stderr, "mmap() failed\n");
return -errno;
}
*map = 0;
if (mprotect(map, HUGETLB_SIZE, PROT_READ)) {
fprintf(stderr, "mmprotect() failed\n");
return -errno;
}
clear_softdirty();
if (mprotect(map, HUGETLB_SIZE, PROT_READ|PROT_WRITE)) {
fprintf(stderr, "mmprotect() failed\n");
return -errno;
}
*map = 0;
return 0;
}
--------------------------------------------------------------------------
Above test fails with SIGBUS when there is only a single free hugetlb page.
# echo 1 > /sys/kernel/mm/hugepages/hugepages-2048kB/nr_hugepages
# ./test
Bus error (core dumped)
And worse, with sufficient free hugetlb pages it will map an anonymous page
into a shared mapping, for example, messing up accounting during unmap
and breaking MAP_SHARED semantics:
# echo 2 > /sys/kernel/mm/hugepages/hugepages-2048kB/nr_hugepages
# ./test
# cat /proc/meminfo | grep HugePages_
HugePages_Total: 2
HugePages_Free: 1
HugePages_Rsvd: 18446744073709551615
HugePages_Surp: 0
Reason in this particular case is that vma_wants_writenotify() will
return "true", removing VM_SHARED in vma_set_page_prot() to map pages
write-protected. Let's teach vma_wants_writenotify() that hugetlb does not
support softdirty tracking.
Link: https://lkml.kernel.org/r/20220811103435.188481-1-david@redhat.com
Link: https://lkml.kernel.org/r/20220811103435.188481-2-david@redhat.com
Fixes:
|
||
|
Peter Xu
|
f369b07c86 |
mm/uffd: reset write protection when unregister with wp-mode
The motivation of this patch comes from a recent report and patchfix from
David Hildenbrand on hugetlb shared handling of wr-protected page [1].
With the reproducer provided in commit message of [1], one can leverage
the uffd-wp lazy-reset of ptes to trigger a hugetlb issue which can affect
not only the attacker process, but also the whole system.
The lazy-reset mechanism of uffd-wp was used to make unregister faster,
meanwhile it has an assumption that any leftover pgtable entries should
only affect the process on its own, so not only the user should be aware
of anything it does, but also it should not affect outside of the process.
But it seems that this is not true, and it can also be utilized to make
some exploit easier.
So far there's no clue showing that the lazy-reset is important to any
userfaultfd users because normally the unregister will only happen once
for a specific range of memory of the lifecycle of the process.
Considering all above, what this patch proposes is to do explicit pte
resets when unregister an uffd region with wr-protect mode enabled.
It should be the same as calling ioctl(UFFDIO_WRITEPROTECT, wp=false)
right before ioctl(UFFDIO_UNREGISTER) for the user. So potentially it'll
make the unregister slower. From that pov it's a very slight abi change,
but hopefully nothing should break with this change either.
Regarding to the change itself - core of uffd write [un]protect operation
is moved into a separate function (uffd_wp_range()) and it is reused in
the unregister code path.
Note that the new function will not check for anything, e.g. ranges or
memory types, because they should have been checked during the previous
UFFDIO_REGISTER or it should have failed already. It also doesn't check
mmap_changing because we're with mmap write lock held anyway.
I added a Fixes upon introducing of uffd-wp shmem+hugetlbfs because that's
the only issue reported so far and that's the commit David's reproducer
will start working (v5.19+). But the whole idea actually applies to not
only file memories but also anonymous. It's just that we don't need to
fix anonymous prior to v5.19- because there's no known way to exploit.
IOW, this patch can also fix the issue reported in [1] as the patch 2 does.
[1] https://lore.kernel.org/all/20220811103435.188481-3-david@redhat.com/
Link: https://lkml.kernel.org/r/20220811201340.39342-1-peterx@redhat.com
Fixes:
|
||
|
Peter Xu
|
efd4149342 |
mm/smaps: don't access young/dirty bit if pte unpresent
These bits should only be valid when the ptes are present. Introducing two booleans for it and set it to false when !pte_present() for both pte and pmd accountings. The bug is found during code reading and no real world issue reported, but logically such an error can cause incorrect readings for either smaps or smaps_rollup output on quite a few fields. For example, it could cause over-estimate on values like Shared_Dirty, Private_Dirty, Referenced. Or it could also cause under-estimate on values like LazyFree, Shared_Clean, Private_Clean. Link: https://lkml.kernel.org/r/20220805160003.58929-1-peterx@redhat.com Fixes: |
||
|
Hao Lee
|
a39c5d3ce0 |
mm: add DEVICE_ZONE to FOR_ALL_ZONES
FOR_ALL_ZONES should be consistent with enum zone_type. Otherwise, __count_zid_vm_events have the potential to add count to wrong item when zid is ZONE_DEVICE. Link: https://lkml.kernel.org/r/20220807154442.GA18167@haolee.io Signed-off-by: Hao Lee <haolee.swjtu@gmail.com> Cc: David Hildenbrand <david@redhat.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
||
|
Randy Dunlap
|
a8faed3a02 |
kernel/sys_ni: add compat entry for fadvise64_64
When CONFIG_ADVISE_SYSCALLS is not set/enabled and CONFIG_COMPAT is
set/enabled, the riscv compat_syscall_table references
'compat_sys_fadvise64_64', which is not defined:
riscv64-linux-ld: arch/riscv/kernel/compat_syscall_table.o:(.rodata+0x6f8):
undefined reference to `compat_sys_fadvise64_64'
Add 'fadvise64_64' to kernel/sys_ni.c as a conditional COMPAT function so
that when CONFIG_ADVISE_SYSCALLS is not set, there is a fallback function
available.
Link: https://lkml.kernel.org/r/20220807220934.5689-1-rdunlap@infradead.org
Fixes:
|
||
|
David Hildenbrand
|
5535be3099 |
mm/gup: fix FOLL_FORCE COW security issue and remove FOLL_COW
Ever since the Dirty COW (CVE-2016-5195) security issue happened, we know that FOLL_FORCE can be possibly dangerous, especially if there are races that can be exploited by user space. Right now, it would be sufficient to have some code that sets a PTE of a R/O-mapped shared page dirty, in order for it to erroneously become writable by FOLL_FORCE. The implications of setting a write-protected PTE dirty might not be immediately obvious to everyone. And in fact ever since commit |
||
|
Jiri Slaby
|
37887783b3 |
Revert "zram: remove double compression logic"
This reverts commit |
||
|
Dan Carpenter
|
d10a72de54 |
get_maintainer: add Alan to .get_maintainer.ignore
Alan asked to be added to the .get_maintainer.ignore list. Link: https://lkml.kernel.org/r/YvN30KhO9aD5Sza9@kili Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
||
|
Linus Torvalds
|
568035b01c | Linux 6.0-rc1 | ||
|
Yury Norov
|
9f162193d6 |
radix-tree: replace gfp.h inclusion with gfp_types.h
Radix tree header includes gfp.h for __GFP_BITS_SHIFT only. Now we
have gfp_types.h for this.
Fixes powerpc allmodconfig build:
In file included from include/linux/nodemask.h:97,
from include/linux/mmzone.h:17,
from include/linux/gfp.h:7,
from include/linux/radix-tree.h:12,
from include/linux/idr.h:15,
from include/linux/kernfs.h:12,
from include/linux/sysfs.h:16,
from include/linux/kobject.h:20,
from include/linux/pci.h:35,
from arch/powerpc/kernel/prom_init.c:24:
include/linux/random.h: In function 'add_latent_entropy':
>> include/linux/random.h:25:46: error: 'latent_entropy' undeclared (first use in this function); did you mean 'add_latent_entropy'?
25 | add_device_randomness((const void *)&latent_entropy, sizeof(latent_entropy));
| ^~~~~~~~~~~~~~
| add_latent_entropy
include/linux/random.h:25:46: note: each undeclared identifier is reported only once for each function it appears in
Reported-by: kernel test robot <lkp@intel.com>
CC: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
CC: Andrew Morton <akpm@linux-foundation.org>
CC: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Yury Norov <yury.norov@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
||
|
Linus Torvalds
|
74cbb480d0 |
Fix proc_reg_llseek() breakage. Always had been possible if
somebody left NULL ->proc_lseek, became a practical issue now. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQQqUNBr3gm4hGXdBJlZ7Krx/gZQ6wUCYvlK4QAKCRBZ7Krx/gZQ 68EUAQDFUFhyvVLnhh1tAkPt3mxHT2OHASN8z6gRBjxGmqj53QD8D4EZAMy3XHnB /6ajdD7hl5pxZQnECPqbBjzPYHa22QE= =BNbv -----END PGP SIGNATURE----- Merge tag 'pull-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull vfs lseek fix from Al Viro: "Fix proc_reg_llseek() breakage. Always had been possible if somebody left NULL ->proc_lseek, became a practical issue now" * tag 'pull-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: take care to handle NULL ->proc_lseek() |
||
|
Al Viro
|
3f61631d47 |
take care to handle NULL ->proc_lseek()
Easily done now, just by clearing FMODE_LSEEK in ->f_mode
during proc_reg_open() for such entries.
Fixes:
|
||
|
Linus Torvalds
|
5d6a0f4da9 |
xen: branch for v6.0-rc1b
-----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQRTLbB6QfY48x44uB6AXGG7T9hjvgUCYvi0yQAKCRCAXGG7T9hj vmikAQDWSrcWuxDkGnzut0A1tBQRUCWDMyKPqigWAA5tH2sPgAEAtWfBvT1xyl7T gZ22I7o21WxxDGyvNUcA65pK7c2cpg8= =UMbq -----END PGP SIGNATURE----- Merge tag 'for-linus-6.0-rc1b-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip Pull more xen updates from Juergen Gross: - fix the handling of the "persistent grants" feature negotiation between Xen blkfront and Xen blkback drivers - a cleanup of xen.config and adding xen.config to Xen section in MAINTAINERS - support HVMOP_set_evtchn_upcall_vector, which is more compliant to "normal" interrupt handling than the global callback used up to now - further small cleanups * tag 'for-linus-6.0-rc1b-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: MAINTAINERS: add xen config fragments to XEN HYPERVISOR sections xen: remove XEN_SCRUB_PAGES in xen.config xen/pciback: Fix comment typo xen/xenbus: fix return type in xenbus_file_read() xen-blkfront: Apply 'feature_persistent' parameter when connect xen-blkback: Apply 'feature_persistent' parameter when connect xen-blkback: fix persistent grants negotiation x86/xen: Add support for HVMOP_set_evtchn_upcall_vector |
||
|
Linus Torvalds
|
96f86ff083 |
perf tools changes for v6.0: 2nd batch
- 'perf c2c' now supports ARM64, adjust its output to cope with differences with what is in x86_64. Now go find false sharing on ARM64 (at least Neoverse) as well! - Refactor the JSON processing, making the output more compact and thus reducing the size of the resulting perf binary. - Improvements for 'perf offcpu' profiling, including tracking child processes. - Update Intel JSON metrics and events files for broadwellde, broadwellx, cascadelakex, haswellx, icelakex, ivytown, jaketown, knightslanding, sapphirerapids, skylakex and snowridgex. - Add 'perf stat' JSON output and a 'perf test' entry for it. - Ignore memfd and anonymous mmap events if jitdump present. - Refactor 'perf test' shell tests allowing subdirs. - Fix an error handling path in 'parse_perf_probe_command()' - Fixes for the guest Intel PT tracing patchkit in the 1st batch of this merge window. - Print debuginfod queries if -v option is used, to explain delays in processing when debuginfo servers are enabled to fetch DSOs with richer symbol tables. - Improve error message for 'perf record -p not_existing_pid' - Fix openssl and libbpf feature detection. - Add PMU pai_crypto event description for IBM z16 on 'perf list'. - Fix typos and duplicated words on comments in various places. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQR2GiIUctdOfX2qHhGyPKLppCJ+JwUCYvg1aQAKCRCyPKLppCJ+ J12hAQCCBXh+t7ab2PyXqDDwr/1aFc94nXA2A5wQ9N4MzD66YgEA1O34rxBiyetU c1pStjrOqR6HGlXh+jAI4zTnK6w1wAs= =m+oE -----END PGP SIGNATURE----- Merge tag 'perf-tools-fixes-for-v6.0-2022-08-13' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux Pull more perf tool updates from Arnaldo Carvalho de Melo: - 'perf c2c' now supports ARM64, adjust its output to cope with differences with what is in x86_64. Now go find false sharing on ARM64 (at least Neoverse) as well! - Refactor the JSON processing, making the output more compact and thus reducing the size of the resulting perf binary - Improvements for 'perf offcpu' profiling, including tracking child processes - Update Intel JSON metrics and events files for broadwellde, broadwellx, cascadelakex, haswellx, icelakex, ivytown, jaketown, knightslanding, sapphirerapids, skylakex and snowridgex - Add 'perf stat' JSON output and a 'perf test' entry for it - Ignore memfd and anonymous mmap events if jitdump present - Refactor 'perf test' shell tests allowing subdirs - Fix an error handling path in 'parse_perf_probe_command()' - Fixes for the guest Intel PT tracing patchkit in the 1st batch of this merge window - Print debuginfod queries if -v option is used, to explain delays in processing when debuginfo servers are enabled to fetch DSOs with richer symbol tables - Improve error message for 'perf record -p not_existing_pid' - Fix openssl and libbpf feature detection - Add PMU pai_crypto event description for IBM z16 on 'perf list' - Fix typos and duplicated words on comments in various places * tag 'perf-tools-fixes-for-v6.0-2022-08-13' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux: (81 commits) perf test: Refactor shell tests allowing subdirs perf vendor events: Update events for snowridgex perf vendor events: Update events and metrics for skylakex perf vendor events: Update metrics for sapphirerapids perf vendor events: Update events for knightslanding perf vendor events: Update metrics for jaketown perf vendor events: Update metrics for ivytown perf vendor events: Update events and metrics for icelakex perf vendor events: Update events and metrics for haswellx perf vendor events: Update events and metrics for cascadelakex perf vendor events: Update events and metrics for broadwellx perf vendor events: Update metrics for broadwellde perf jevents: Fold strings optimization perf jevents: Compress the pmu_events_table perf metrics: Copy entire pmu_event in find metric perf pmu-events: Hide the pmu_events perf pmu-events: Don't assume pmu_event is an array perf pmu-events: Move test events/metrics to JSON perf test: Use full metric resolution perf pmu-events: Hide pmu_events_map ... |
||
|
Linus Torvalds
|
d785610f05 |
powerpc fixes for 6.0 #2
- Ensure we never emit lwarx with EH=1 on 32-bit, because some 32-bit CPUs trap on it
rather than ignoring it as they should.
- Fix ftrace when building with clang, which was broken by some refactoring.
- A couple of other minor fixes.
Thanks to: Christophe Leroy, Naveen N. Rao, Nick Desaulniers, Ondrej Mosnacek, Pali Rohár,
Russell Currey Segher Boessenkool.
-----BEGIN PGP SIGNATURE-----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=SpYx
-----END PGP SIGNATURE-----
Merge tag 'powerpc-6.0-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
- Ensure we never emit lwarx with EH=1 on 32-bit, because some 32-bit
CPUs trap on it rather than ignoring it as they should.
- Fix ftrace when building with clang, which was broken by some
refactoring.
- A couple of other minor fixes.
Thanks to Christophe Leroy, Naveen N. Rao, Nick Desaulniers, Ondrej
Mosnacek, Pali Rohár, Russell Currey, and Segher Boessenkool.
* tag 'powerpc-6.0-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/kexec: Fix build failure from uninitialised variable
powerpc/ppc-opcode: Fix PPC_RAW_TW()
powerpc64/ftrace: Fix ftrace for clang builds
powerpc: Make eh value more explicit when using lwarx
powerpc: Don't hide eh field of lwarx behind a macro
powerpc: Fix eh field when calling lwarx on PPC32
|
||
|
Linus Torvalds
|
aea23e7c46 |
fix for /proc/mounts escaping
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQQqUNBr3gm4hGXdBJlZ7Krx/gZQ6wUCYvg//wAKCRBZ7Krx/gZQ 631TAP92pf2EYSUbWRjSshaxYrIJeiDpIBBikSoEOQj4GG4hUwD/U6f/LnFW0a8P 58kXaxXI9cNBEVRhwI/dZKW9q/WxBAY= =3rHw -----END PGP SIGNATURE----- Merge tag 'pull-work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull /proc/mounts fix from Al Viro: "Fix for /proc/mounts escaping - escape the '#' character too" * tag 'pull-work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: vfs: escape hash as well |
||
|
Linus Torvalds
|
332019e23a |
8 cifs/smb3 fixes, mostly restructuring/cleanup, including two for stable
-----BEGIN PGP SIGNATURE-----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=gZTH
-----END PGP SIGNATURE-----
Merge tag '5.20-rc-smb3-client-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6
Pull more cifs updates from Steve French:
- two fixes for stable, one for a lock length miscalculation, and
another fixes a lease break timeout bug
- improvement to handle leases, allows the close timeout to be
configured more safely
- five restructuring/cleanup patches
* tag '5.20-rc-smb3-client-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6:
cifs: Do not access tcon->cfids->cfid directly from is_path_accessible
cifs: Add constructor/destructors for tcon->cfid
SMB3: fix lease break timeout when multiple deferred close handles for the same file.
smb3: allow deferred close timeout to be configurable
cifs: Do not use tcon->cfid directly, use the cfid we get from open_cached_dir
cifs: Move cached-dir functions into a separate file
cifs: Remove {cifs,nfs}_fscache_release_page()
cifs: fix lock length calculation
|
||
|
David Howells
|
8549a26308 |
afs: Enable multipage folio support
Enable multipage folio support for the afs filesystem. Support has already been implemented in netfslib, fscache and cachefiles and in most of afs, but I've waited for Matthew Wilcox's latest folio changes. Note that it does require a change to afs_write_begin() to return the correct subpage. This is a "temporary" change as we're working on getting rid of the need for ->write_begin() and ->write_end() completely, at least as far as network filesystems are concerned - but it doesn't prevent afs from making use of the capability. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Matthew Wilcox (Oracle) <willy@infradead.org> Tested-by: kafs-testing@auristor.com Cc: Marc Dionne <marc.dionne@auristor.com> Cc: linux-afs@lists.infradead.org Link: https://lore.kernel.org/lkml/2274528.1645833226@warthog.procyon.org.uk/ Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
|
Linus Torvalds
|
f6eb0fed6a |
Misc timer fixes:
- fix a potential use-after-free bug in posix timers - correct a prototype - address a build warning Signed-off-by: Ingo Molnar <mingo@kernel.org> -----BEGIN PGP SIGNATURE----- iQJFBAABCgAvFiEEBpT5eoXrXCwVQwEKEnMQ0APhK1gFAmL3epQRHG1pbmdvQGtl cm5lbC5vcmcACgkQEnMQ0APhK1iPZw/+I/9GXcf3SzbG5M6Nf21SJpSjC4hAHHgb eyv5MUNxKvCHU5iT2SrCvgKjESl5I/E70kubeRHJnvarBPUzGnHHzGlYIYOaJPQ7 irJpUj/6R8ps4UsMBJ8vj5f3b7163zhBJVP8egDW6roT1HUrYTFeIjIli/SOCxpY H1/DqHlbEALE5o5xykg3zuqAbywym+hNRleIVls4wqjZNnfqiTElSuW9xqw9xt3n 9xYmOKZaztdv5Lp2JCm7QOu2byGzeHje72ppsDcBZ3EBvHUBLSndhfe5NQUGhtxy UlBqAELA653uPgPnNKLRMqt/kop8emHqvAx8T0RawPwoUS6XGDVxRX+my8+HKklg P8KsM/8W7+3KTHz0bf72DEHTFiXCzlswRzdOSvP5bR4xw1G4ychzvuxAiPDFR3zT v7uPgykxxCrEexVCBCdPmrl4WikwLJtcrSXtJ4bsisxQFlq7WWd2/osZkTffI3pN IIxDXuHFHC78lrUMk2OQ+ITBz01z4nCFSlgMGZ6ZY6ppS1Rndy1HG/B2NgjW1zGP Y/1xq/nWaql0QO7RmyoJXt1ZSMJYCyKFocRDh9nBmtBSlYm3A8aIA8b4i1VRRG1G 8HOkdS8ef2eOWj8wqk0NvoTbiGjV7YM5pf0g1dmRLA+aGCBD1P9/iFcBv5b6Uxaq qZ7ZtuQzsyc= =Plg8 -----END PGP SIGNATURE----- Merge tag 'timers-urgent-2022-08-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull timer fixes from Ingo Molnar: "Misc timer fixes: - fix a potential use-after-free bug in posix timers - correct a prototype - address a build warning" * tag 'timers-urgent-2022-08-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: posix-cpu-timers: Cleanup CPU timers before freeing them during exec time: Correct the prototype of ns_to_kernel_old_timeval and ns_to_timespec64 posix-timers: Make do_clock_gettime() static |
||
|
Linus Torvalds
|
c5f1e32e32 |
Fix the "IBPB mitigated RETBleed" mode of operation on AMD CPUs
(not turned on by default), which also need STIBP enabled (if available) to be '100% safe' on even the shortest speculation windows. Signed-off-by: Ingo Molnar <mingo@kernel.org> -----BEGIN PGP SIGNATURE----- iQJFBAABCgAvFiEEBpT5eoXrXCwVQwEKEnMQ0APhK1gFAmL3fqcRHG1pbmdvQGtl cm5lbC5vcmcACgkQEnMQ0APhK1gnuw/6AighFp+Gp4qXP1DIVU+acVnZsxbdt7GA WGs/JJfKYsKpWvDGFxnwtF2V1Imq8XVRPVPyFKvLQiBs2h8vNcVkgIvJsdeTFsqQ uUwUaYgDXuhLYaFpnMGouoeA3iw2zf/CY5ZJX79Nl/CwNwT7FxiLbu+JF/I2Yc0V yddiQ8xgT0VJhaBcUTsD2qFl8wjpxer7gNBFR4ujiYWXHag3qKyZuaySmqCz4xhd 4nyhJCp34548MsTVXDys2gnYpgLWweB9zOPvH4+GgtiFF3UJxRMhkB9NzfZq1l5W tCjgGupb3vVoXOVb/xnXyZlPbdFNqSAja7iOXYdmNUSURd7LC0PYHpVxN0rkbFcd V6noyU3JCCp86ceGTC0u3Iu6LLER6RBGB0gatVlzomWLjTEiC806eo23CVE22cnk poy7FO3RWa+q1AqWsEzc3wr14ZgSKCBZwwpn6ispT/kjx9fhAFyKtH2/Sznx26GH yKOF7pPCIXjCpcMnNoUu8cVyzfk0g3kOWQtKjaL9WfeyMtBaHhctngR0s1eCxZNJ rBlTs+YO7fO42unZEExgvYekBzI70aThIkvxahKEWW48owWph+i/sn5gzdVF+ynR R4PGeylfd8ZXr21cG2rG9250JLwqzhsxnAGvNjYg1p/hdyrzLTGWHIc9r9BU9000 mmOP9uY6Cjc= =Ac6x -----END PGP SIGNATURE----- Merge tag 'x86-urgent-2022-08-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fix from Ingo Molnar: "Fix the 'IBPB mitigated RETBleed' mode of operation on AMD CPUs (not turned on by default), which also need STIBP enabled (if available) to be '100% safe' on even the shortest speculation windows" * tag 'x86-urgent-2022-08-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/bugs: Enable STIBP for IBPB mitigated RETBleed |
||
|
Linus Torvalds
|
0473436195 |
* two driver fixes for issues introduced this cycle
* one trivial driver improvement regarding ACPI * more DTS conversion and additions * documentation updates * subsystem-wide move from strlcpy to strscpy -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEOZGx6rniZ1Gk92RdFA3kzBSgKbYFAmL3xVcACgkQFA3kzBSg KbaMLg//TjS/8kXuAG7IC/6oyc75XMoWd7KVAPVBgMLe4AAMf5+zHMrO0Nje4uDL WnDPqJrIyLt85y6ffAlvGktWupc/dlFEToHGCpI89ApPZJL78lxbT3MfMK42QqC3 sc1eOStTVyU/3NR2KUuvaG3lCYBRvsXob2TxwagroZApxhK2GOEmwHfNFtZXhp3J pwId+QLp3lSE3MKq4e5dcT8t0moxsI9jxQBBqecjSem/9BP44UTvJjfp7mayQocR JmhNkaHIe/dnf8+I4E110ai8hyvk14zoseM6C89k88iN3wIoaPPJRJ3O6ZoJ5ZhP qJx2uczpDSFY+ihGypxJZWDwZj5Z6+ywC5T1qDXHsE96+WNhADXoNRCNXwb8jIOe kFRWvbhzKvf3w4Dp9garKE4CxC0NpPPwnGzB7j+dQz4RJaf/4djsDRhFkQiqn7Tr MTsChqO3mHqJVgNLmCbQEhzV59pei72AdNLq/QZM57xrH+sGIWwW9JB9bCOu4w77 RbItAR9072XVzzvbLz3UZsqYyuBf5NPF38H3MFjvvddtK9xpUa8eFajLuGlP5Or9 VGbXBXQ8pXNOoeX8JhNY/AXbghLGux3mOI2soLxOKkPS9XhKI/ifV6EgSQTRi6o4 0GHOdbmudv6v9Piy1F8x7UeyJyNmNCYn0CdBHMfNVE7hvId0WZI= =CHez -----END PGP SIGNATURE----- Merge tag 'i2c-for-5.20-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux Pull more i2c updates from Wolfram Sang: - two driver fixes for issues introduced this cycle - one trivial driver improvement regarding ACPI - more DTS conversion and additions - documentation updates - subsystem-wide move from strlcpy to strscpy * tag 'i2c-for-5.20-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: docs: i2c: i2c-sysfs: fix hyperlinks docs: i2c: i2c-sysfs: improve wording docs: i2c: instantiating-devices: add syntax coloring to dts and C blocks docs: i2c: smbus-protocol: improve DataLow/DataHigh definition docs: i2c: i2c-protocol: remove unused legend items docs: i2c: i2c-protocol,smbus-protocol: remove nonsense words docs: i2c: i2c-protocol: update introductory paragraph i2c: move core from strlcpy to strscpy i2c: move drivers from strlcpy to strscpy i2c: kempld: Support ACPI I2C device declaration i2c: mediatek: add i2c compatible for MT8188 dt-bindings: i2c: update bindings for mt8188 soc i2c: microchip-corei2c: fix erroneous late ack send dt-bindings: i2c: qcom,i2c-cci: convert to dtschema i2c: qcom-geni: Fix GPI DMA buffer sync-back |
||
|
Linus Torvalds
|
a976835fdb |
Fix of heap data and clang warnings, support for a new Intel NTB device,
and NTB EndPoint Function (EPF) support and the various fixes from that being in -next for Linux v5.20 -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEoE9b9c3U2JxX98mqbmZLrHqL0iMFAmL2skgACgkQbmZLrHqL 0iMaAhAAlHvhdSvq7huLkbKd22TdorqaU3bVCYB0KzPR7Ghc4P5XqdLE1VI+TAFD PXFpD6D2VoGxAuh2PKHzRyAGcV4nr8JDBMZtgpJOcJr3rFhdg1wlfIX1jemrCxTT 9clSEyJ4WSbRpSXq5cbbF3AqaMPPlZ2wMiopKPieCxjTyqld1Wf80ah58GyeT9ut 8zyRzsgOI22WjQmIY13pWUWSTZFtomaM/oVaTC1eepES/t+/1L6/AmucVGY43SnD N8LEZroRRHmFlyI7H9J1U580sTZVqaEBJoKfN66wnTMCXPR/+8zWprZOLB+R5A+L klJY7PakrKd7mlafUbRxsBcKnSIrB7UtVZR8Xs2SlReSEqmcDEnIXq8Ga6RZOGKf hsk72KtqtyFHycFqw8kVGc+hLon39RUd7HI8a3jyrOmJKp3bJ/iQxiLEuKpScZKm sS6bmBMXJCV9o8UJM7GbyX5kRIki+Dc66dFIcqLFwHN0e0I6yV8TE9HZ5SXtsFri uBwlzRbdYctJm9+1WT2FxuCb1H5DZaMdKCf2fQQnWXW2PqLIlKj2uE1O6IctIBJr rlZea6ZOU8zUsIMdANlezJuoTol/bNRWqYbRm0x69lYI7+SYDov3Dg5SAhgJtLFn F/zaGcO2aTKLxBjXyx+Zu2KgEYR8N+cLYKhLY3/Cv6/vt4CbW2Y= =DAah -----END PGP SIGNATURE----- Merge tag 'ntb-5.20' of https://github.com/jonmason/ntb Pull NTB updates from Jon Mason: "Non-Transparent Bridge updates. Fix of heap data and clang warnings, support for a new Intel NTB device, and NTB EndPoint Function (EPF) support and the various fixes for that" * tag 'ntb-5.20' of https://github.com/jonmason/ntb: MAINTAINERS: add PCI Endpoint NTB drivers to NTB files NTB: EPF: Tidy up some bounds checks NTB: EPF: Fix error code in epf_ntb_bind() PCI: endpoint: pci-epf-vntb: reduce several globals to statics PCI: endpoint: pci-epf-vntb: fix error handle in epf_ntb_mw_bar_init() PCI: endpoint: Fix Kconfig dependency NTB: EPF: set pointer addr to null using NULL rather than 0 Documentation: PCI: extend subheading underline for "lspci output" section Documentation: PCI: Use code-block block for scratchpad registers diagram Documentation: PCI: Add specification for the PCI vNTB function device PCI: endpoint: Support NTB transfer between RC and EP NTB: epf: Allow more flexibility in the memory BAR map method PCI: designware-ep: Allow pci_epc_set_bar() update inbound map address ntb: intel: add GNR support for Intel PCIe gen5 NTB NTB: ntb_tool: uninitialized heap data in tool_fn_write() ntb: idt: fix clang -Wformat warnings |
||
|
Linus Torvalds
|
9872e4a873 |
New code for 6.0:
- Return error codes from block device flushes to userspace.
- Fix a deadlock between reclaim and mount time quotacheck.
- Fix an unnecessary ENOSPC return when doing COW on a filesystem with
severe free space fragmentation.
- Fix a miscalculation in the transaction reservation computations for
file removal operations.
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
-----BEGIN PGP SIGNATURE-----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=wFgu
-----END PGP SIGNATURE-----
Merge tag 'xfs-5.20-merge-8' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull more xfs updates from Darrick Wong:
"There's not a lot this time around, just the usual bug fixes and
corrections for missing error returns.
- Return error codes from block device flushes to userspace
- Fix a deadlock between reclaim and mount time quotacheck
- Fix an unnecessary ENOSPC return when doing COW on a filesystem
with severe free space fragmentation
- Fix a miscalculation in the transaction reservation computations
for file removal operations"
* tag 'xfs-5.20-merge-8' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
xfs: fix inode reservation space for removing transaction
xfs: Fix false ENOSPC when performing direct write on a delalloc extent in cow fork
xfs: fix intermittent hang during quotacheck
xfs: check return codes when flushing block devices
|
||
|
Linus Torvalds
|
e140f731f9 |
SCSI misc on 20220813
Mostly small bug fixes and trivial updates. The major new core update is a change to the way device, target and host reference counting is done to try to make it more robust (this change has soaked for a while to try to winkle out any bugs). Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com> -----BEGIN PGP SIGNATURE----- iJwEABMIAEQWIQTnYEDbdso9F2cI+arnQslM7pishQUCYveemSYcamFtZXMuYm90 dG9tbGV5QGhhbnNlbnBhcnRuZXJzaGlwLmNvbQAKCRDnQslM7pisheaiAP9DPQ70 7hEdak6evXUwlWwlVBvEFAfZlzpHN+uNzUCvpgD+N61RSPhHV1hXu12sVMmjMNEb pow+ee47Mc0t/OO68jA= =1yQh -----END PGP SIGNATURE----- Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull more SCSI updates from James Bottomley: "Mostly small bug fixes and trivial updates. The major new core update is a change to the way device, target and host reference counting is done to try to make it more robust (this change has soaked for a while to try to winkle out any bugs)" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: pm8001: Fix typo 'the the' in comment scsi: megaraid_sas: Remove redundant variable cmd_type scsi: FlashPoint: Remove redundant variable bm_int_st scsi: zfcp: Fix missing auto port scan and thus missing target ports scsi: core: Call blk_mq_free_tag_set() earlier scsi: core: Simplify LLD module reference counting scsi: core: Make sure that hosts outlive targets scsi: core: Make sure that targets outlive devices scsi: ufs: ufs-pci: Correct check for RESET DSM scsi: target: core: De-RCU of se_lun and se_lun acl scsi: target: core: Fix race during ACL removal scsi: ufs: core: Correct ufshcd_shutdown() flow scsi: ufs: core: Increase the maximum data buffer size scsi: lpfc: Check the return value of alloc_workqueue() |
||
|
Linus Torvalds
|
abe7a481aa |
block-6.0-2022-08-12
-----BEGIN PGP SIGNATURE-----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=1/w+
-----END PGP SIGNATURE-----
Merge tag 'block-6.0-2022-08-12' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
- NVMe pull request
- print nvme connect Linux error codes properly (Amit Engel)
- fix the fc_appid_store return value (Christoph Hellwig)
- fix a typo in an error message (Christophe JAILLET)
- add another non-unique identifier quirk (Dennis P. Kliem)
- check if the queue is allocated before stopping it in nvme-tcp
(Maurizio Lombardi)
- restart admin queue if the caller needs to restart queue in
nvme-fc (Ming Lei)
- use kmemdup instead of kmalloc + memcpy in nvme-auth (Zhang
Xiaoxu)
- __alloc_disk_node() error handling fix (Rafael)
* tag 'block-6.0-2022-08-12' of git://git.kernel.dk/linux-block:
block: Do not call blk_put_queue() if gendisk allocation fails
nvme-pci: add NVME_QUIRK_BOGUS_NID for ADATA XPG GAMMIX S70
nvme-tcp: check if the queue is allocated before stopping it
nvme-fabrics: Fix a typo in an error message
nvme-fabrics: parse nvme connect Linux error codes
nvmet-auth: use kmemdup instead of kmalloc + memcpy
nvme-fc: fix the fc_appid_store return value
nvme-fc: restart admin queue if the caller needs to restart queue
|
||
|
Linus Torvalds
|
1da8cf961b |
io_uring-6.0-2022-08-13
-----BEGIN PGP SIGNATURE----- iQJEBAABCAAuFiEEwPw5LcreJtl1+l5K99NY+ylx4KYFAmL3+fQQHGF4Ym9lQGtl cm5lbC5kawAKCRD301j7KXHgpmXyEACfERdKYdZ/W3IvPoyK8CJ3p7f/6SOj2/p1 DTuaa3l7/kVq2HcRUGgZwvgeWpOCFghdBm5co/4hGqSw7bT8rERGDelo41ohhTfr xKIiwJflK/s280VXLJFA+o7Jeoj1oTFYCmdUmU3wcKFVnQdu1rz9s0L6bwsEqq93 y1uty96dxYZn2mENLbBah0x9yV0h2ZxRkguUm0sdnKl/tMkUVLSD1TPLHf2s6eAL o3Dbmo9jv4HFXoJj8YL50Oxl22zIKBHl9hZqHdLcKesFgyFTChckKUNijWyPL2vE zesbnd57sXgY6ghi4LDGeCOtN41WNjiVeAm/c4XK5oFhTag8Q2x0D1hTPUByHksl IV/116xs6pHTeZRhNlMOBVMZGLSz95zSuRUyTONAmKgc/b3if/w3zTi1W3CnJSlx 7O5GpqQDZTQuin0jldNKImbx1aPAATb+UWDkl7O5aXkjw4FUtxT5GrYcBNswVuKX iybx8NyVn8kFD1hix3U8huBOPSg1JMkR+sFml+NqYRd4i2CwV8KAPPuzsPw6MRBL U4DfkAkpsbKqSK+mri5aUrYxmpYkJ45mgyldiewiOso9+AYg9DDp3D2iGgAiRbKm i3pz1Gh/3iUow0UAI5ZFlDhjHgWPlIH7IBbemivhjhFV4GrXJqTwUzsA1iDKTe14 3lHKkAPVPA== =FfLf -----END PGP SIGNATURE----- Merge tag 'io_uring-6.0-2022-08-13' of git://git.kernel.dk/linux-block Pull io_uring fixes from Jens Axboe: - Regression fix for this merge window, fixing a wrong order of arguments for io_req_set_res() for passthru (Dylan) - Fix for the audit code leaking context memory (Peilin) - Ensure that provided buffers are memcg accounted (Pavel) - Correctly handle short zero-copy sends (Pavel) - Sparse warning fixes for the recvmsg multishot command (Dylan) - Error handling fix for passthru (Anuj) - Remove randomization of struct kiocb fields, to avoid it growing in size if re-arranged in such a fashion that it grows more holes or padding (Keith, Linus) - Small series improving type safety of the sqe fields (Stefan) * tag 'io_uring-6.0-2022-08-13' of git://git.kernel.dk/linux-block: io_uring: add missing BUILD_BUG_ON() checks for new io_uring_sqe fields io_uring: make io_kiocb_to_cmd() typesafe fs: don't randomize struct kiocb fields io_uring: consistently make use of io_notif_to_data() io_uring: fix error handling for io_uring_cmd io_uring: fix io_recvmsg_prep_multishot sparse warnings io_uring/net: send retry for zerocopy io_uring: mem-account pbuf buckets audit, io_uring, io-wq: Fix memory leak in io_sq_thread() and io_wqe_worker() io_uring: pass correct parameters to io_req_set_res |
||
|
Carsten Haitzler
|
7391db6459 |
perf test: Refactor shell tests allowing subdirs
This is a prelude to adding more tests to shell tests and in order to support putting those tests into subdirectories, I need to change the test code that scans/finds and runs them. To support subdirs I have to recurse so it's time to refactor the code to allow this and centralize the shell script finding into one location and only one single scan that builds a list of all the found tests in memory instead of it being duplicated in 3 places. This code also optimizes things like knowing the max width of desciption strings (as we can do that while we scan instead of a whole new pass of opening files). It also more cleanly filters scripts to see only *.sh files thus skipping random other files in directories like *~ backup files, other random junk/data files that may appear and the scripts must be executable to make the cut (this ensures the script lib dir is not seen as scripts to run). This avoids perf test running previous older versions of test scripts that are editor backup files as well as skipping perf.data files that may appear and so on. Reviewed-by: Leo Yan <leo.yan@linaro.org> Signed-off-by: Carsten Haitzler <carsten.haitzler@arm.com> Tested-by: Leo Yan <leo.yan@linaro.org> Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Mike Leach <mike.leach@linaro.org> Cc: Suzuki Poulouse <suzuki.poulose@arm.com> Cc: coresight@lists.linaro.org Link: https://lore.kernel.org/r/20220812121641.336465-2-carsten.haitzler@foss.arm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Zhengjun Xing
|
aa0d6e9cc2 |
perf vendor events: Update events for snowridgex
Update the events to v1.20, update events for snowridgex by the latest event converter tools. Use script at: https://github.com/intel/event-converter-for-linux-perf/blob/master/download_and_gen.py to download and generate the latest events and metrics. Manually copy the snowridgex files into perf. Signed-off-by: Xing Zhengjun <zhengjun.xing@linux.intel.com> Tested-by: Ian Rogers <irogers@google.com> Cc: Alexander Shishkin <alexander.shishkin@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20220812085239.3089231-12-zhengjun.xing@linux.intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Zhengjun Xing
|
ce87616d0d |
perf vendor events: Update events and metrics for skylakex
Update the events to v1.28, the metrics are based on TMA 4.4 full, update events and metrics for skylakex by the latest event converter tools. Use script at: https://github.com/intel/event-converter-for-linux-perf/blob/master/download_and_gen.py to download and generate the latest events and metrics. Manually copy the skylakex files into perf. Signed-off-by: Xing Zhengjun <zhengjun.xing@linux.intel.com> Tested-by: Ian Rogers <irogers@google.com> Cc: Alexander Shishkin <alexander.shishkin@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20220812085239.3089231-11-zhengjun.xing@linux.intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Zhengjun Xing
|
74d8ca6d85 |
perf vendor events: Update metrics for sapphirerapids
The metrics are based on TMA 4.4 full, add new metrics “UNCORE_FREQ” for sapphirerapids. Use script at: https://github.com/intel/event-converter-for-linux-perf/blob/master/download_and_gen.py to download and generate the latest events and metrics. Manually copy the sapphirerapids files into perf. Signed-off-by: Xing Zhengjun <zhengjun.xing@linux.intel.com> Tested-by: Ian Rogers <irogers@google.com> Cc: Alexander Shishkin <alexander.shishkin@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20220812085239.3089231-10-zhengjun.xing@linux.intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Zhengjun Xing
|
107630e6a5 |
perf vendor events: Update events for knightslanding
Update the events to v9, update events for knightslanding by the latest event converter tools. Use script at: https://github.com/intel/event-converter-for-linux-perf/blob/master/download_and_gen.py to download and generate the latest events and metrics. Manually copy the knightslanding files into perf. Signed-off-by: Xing Zhengjun <zhengjun.xing@linux.intel.com> Tested-by: Ian Rogers <irogers@google.com> Cc: Alexander Shishkin <alexander.shishkin@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20220812085239.3089231-9-zhengjun.xing@linux.intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Zhengjun Xing
|
b823ee183d |
perf vendor events: Update metrics for jaketown
The metrics are based on TMA 4.4 full, add new metrics “UNCORE_FREQ” for jaketown. Use script at: https://github.com/intel/event-converter-for-linux-perf/blob/master/download_and_gen.py to download and generate the latest events and metrics. Manually copy the jaketown files into perf. Signed-off-by: Xing Zhengjun <zhengjun.xing@linux.intel.com> Tested-by: Ian Rogers <irogers@google.com> Cc: Alexander Shishkin <alexander.shishkin@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20220812085239.3089231-8-zhengjun.xing@linux.intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Zhengjun Xing
|
cb73eeb95a |
perf vendor events: Update metrics for ivytown
The metrics are based on TMA 4.4 full, add new metrics “UNCORE_FREQ” for ivytown. Use script at: https://github.com/intel/event-converter-for-linux-perf/blob/master/download_and_gen.py to download and generate the latest events and metrics. Manually copy the ivytown files into perf. Signed-off-by: Xing Zhengjun <zhengjun.xing@linux.intel.com> Tested-by: Ian Rogers <irogers@google.com> Cc: Alexander Shishkin <alexander.shishkin@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20220812085239.3089231-7-zhengjun.xing@linux.intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Zhengjun Xing
|
b8d4fbfb04 |
perf vendor events: Update events and metrics for icelakex
Update the events to v1.15, the metrics are based on TMA 4.4 full, update events and metrics for icelakex by the latest event converter tools. Use script at: https://github.com/intel/event-converter-for-linux-perf/blob/master/download_and_gen.py to download and generate the latest events and metrics. Manually copy the icelakex files into perf. Signed-off-by: Xing Zhengjun <zhengjun.xing@linux.intel.com> Tested-by: Ian Rogers <irogers@google.com> Cc: Alexander Shishkin <alexander.shishkin@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20220812085239.3089231-6-zhengjun.xing@linux.intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Zhengjun Xing
|
575c3640a4 |
perf vendor events: Update events and metrics for haswellx
Update the events to v25, the metrics are based on TMA 4.4 full, update events and metrics for haswellx by the latest event converter tools. Use script at: https://github.com/intel/event-converter-for-linux-perf/blob/master/download_and_gen.py to download and generate the latest events and metrics. Manually copy the haswellx files into perf. Signed-off-by: Xing Zhengjun <zhengjun.xing@linux.intel.com> Tested-by: Ian Rogers <irogers@google.com> Cc: Alexander Shishkin <alexander.shishkin@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20220812085239.3089231-5-zhengjun.xing@linux.intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Zhengjun Xing
|
c6e9c04418 |
perf vendor events: Update events and metrics for cascadelakex
Update to v16, the metrics are based on TMA 4.4 full, update events and add new metrics “UNCORE_FREQ” for cascadelakex. Use script at: https://github.com/intel/event-converter-for-linux-perf/blob/master/download_and_gen.py to download and generate the latest events and metrics. Manually copy the cascadelakex files into perf. Signed-off-by: Xing Zhengjun <zhengjun.xing@linux.intel.com> Tested-by: Ian Rogers <irogers@google.com> Cc: Alexander Shishkin <alexander.shishkin@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20220812085239.3089231-4-zhengjun.xing@linux.intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Zhengjun Xing
|
e349fa6cc8 |
perf vendor events: Update events and metrics for broadwellx
Update to v19, the metrics are based on TMA 4.4 full, update events and add new metrics “UNCORE_FREQ” for broadwellx. Use script at: https://github.com/intel/event-converter-for-linux-perf/blob/master/download_and_gen.py to download and generate the latest events and metrics. Manually copy the broadwellx files into perf. Signed-off-by: Xing Zhengjun <zhengjun.xing@linux.intel.com> Tested-by: Ian Rogers <irogers@google.com> Cc: Alexander Shishkin <alexander.shishkin@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20220812085239.3089231-3-zhengjun.xing@linux.intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Zhengjun Xing
|
bf79e18fdf |
perf vendor events: Update metrics for broadwellde
The metrics are based on TMA 4.4 full, add new metrics “UNCORE_FREQ” for broadwellde. Use script at: https://github.com/intel/event-converter-for-linux-perf/blob/master/download_and_gen.py to download and generate the latest events and metrics. Manually copy the broadwellde files into perf. Signed-off-by: Xing Zhengjun <zhengjun.xing@linux.intel.com> Tested-by: Ian Rogers <irogers@google.com> Cc: Alexander Shishkin <alexander.shishkin@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20220812085239.3089231-2-zhengjun.xing@linux.intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Ian Rogers
|
d0313e629f |
perf jevents: Fold strings optimization
If a shorter string ends a longer string then the shorter string may reuse the longer string at an offset. For example, on x86 the event arith.cycles_div_busy and cycles_div_busy can be folded, even though they have difference names the strings are identical after 6 characters. cycles_div_busy can reuse the arith.cycles_div_busy string at an offset of 6. In pmu-events.c this looks like the following where the 'also:' lists folded strings: /* offset=177541 */ "arith.cycles_div_busy\000\000pipeline\000Cycles the divider is busy\000\000\000event=0x14,period=2000000,umask=0x1\000\000\000\000\000\000\000\000\000" /* also: cycles_div_busy\000\000pipeline\000Cycles the divider is busy\000\000\000event=0x14,period=2000000,umask=0x1\000\000\000\000\000\000\000\000\000 */ As jevents.py combines multiple strings for an event into a larger string, the amount of folding is minimal as all parts of the event must align. Other organizations can benefit more from folding, but lose space by say recording more offsets. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: John Garry <john.garry@huawei.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Leo Yan <leo.yan@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Mike Leach <mike.leach@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Stephane Eranian <eranian@google.com> Cc: Will Deacon <will@kernel.org> Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com> Cc: linux-arm-kernel@lists.infradead.org Link: https://lore.kernel.org/r/20220812230949.683239-15-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Ian Rogers
|
9118259c1d |
perf jevents: Compress the pmu_events_table
The pmu_events array requires 15 pointers per entry which in position independent code need relocating. Change the array to be an array of offsets within a big C string. Only the offset of the first variable is required, subsequent variables are stored in order after the \0 terminator (requiring a byte per variable rather than 4 bytes per offset). The file size savings are: no jevents - the same 19,788,464bytes x86 jevents - ~16.7% file size saving 23,744,288bytes vs 28,502,632bytes all jevents - ~19.5% file size saving 24,469,056bytes vs 30,379,920bytes default build options plus NO_LIBBFD=1. For example, the x86 build savings come from .rela.dyn and .data.rel.ro becoming smaller by 3,157,032bytes and 3,042,016bytes respectively. .rodata increases by 1,432,448bytes, giving an overall 4,766,600bytes saving. To make metric strings more shareable, the topic is changed from say 'skx metrics' to just 'metrics'. To try to help with the memory layout the pmu_events are ordered as used by perf qsort comparator functions. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: John Garry <john.garry@huawei.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Leo Yan <leo.yan@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Mike Leach <mike.leach@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Stephane Eranian <eranian@google.com> Cc: Will Deacon <will@kernel.org> Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com> Cc: linux-arm-kernel@lists.infradead.org Link: https://lore.kernel.org/r/20220812230949.683239-14-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Ian Rogers
|
d3abd7b8bd |
perf metrics: Copy entire pmu_event in find metric
The pmu_event passed to the pmu_events_table_for_each_event is invalid after the loop. Copy the entire struct in metricgroup__find_metric. Reduce the scope of this function to static. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: John Garry <john.garry@huawei.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Leo Yan <leo.yan@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Mike Leach <mike.leach@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Stephane Eranian <eranian@google.com> Cc: Will Deacon <will@kernel.org> Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com> Cc: linux-arm-kernel@lists.infradead.org Link: https://lore.kernel.org/r/20220812230949.683239-13-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Ian Rogers
|
1ba3752aec |
perf pmu-events: Hide the pmu_events
Hide that the pmu_event structs are an array with a new wrapper struct. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: John Garry <john.garry@huawei.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Leo Yan <leo.yan@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Mike Leach <mike.leach@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Stephane Eranian <eranian@google.com> Cc: Will Deacon <will@kernel.org> Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com> Cc: linux-arm-kernel@lists.infradead.org Link: https://lore.kernel.org/r/20220812230949.683239-12-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Ian Rogers
|
660842e468 |
perf pmu-events: Don't assume pmu_event is an array
The current code assumes that a struct pmu_event can be iterated over forward until a NULL pmu_event is encountered. This makes it difficult to refactor pmu_event. Add a loop function taking a callback function that's passed the struct pmu_event. This way the pmu_event is only needed for one element and not an entire array. Switch existing code iterating over the pmu_event arrays to use the new loop function pmu_events_table_for_each_event. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: John Garry <john.garry@huawei.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Leo Yan <leo.yan@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Mike Leach <mike.leach@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Stephane Eranian <eranian@google.com> Cc: Will Deacon <will@kernel.org> Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com> Cc: linux-arm-kernel@lists.infradead.org Link: https://lore.kernel.org/r/20220812230949.683239-11-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Ian Rogers
|
7ae5c03a27 |
perf pmu-events: Move test events/metrics to JSON
Move arrays of pmu_events into the JSON code so that it may be regenerated and modified by the jevents.py script. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: John Garry <john.garry@huawei.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Leo Yan <leo.yan@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Mike Leach <mike.leach@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Stephane Eranian <eranian@google.com> Cc: Will Deacon <will@kernel.org> Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com> Cc: linux-arm-kernel@lists.infradead.org Link: https://lore.kernel.org/r/20220812230949.683239-10-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Ian Rogers
|
64234c141b |
perf test: Use full metric resolution
The simple metric resolution doesn't handle recursion properly, switch to use the full resolution as with the parse-metric tests which also increases coverage. Don't set the values for the metric backward as failures to generate a result are ignored. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: John Garry <john.garry@huawei.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Leo Yan <leo.yan@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Mike Leach <mike.leach@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Stephane Eranian <eranian@google.com> Cc: Will Deacon <will@kernel.org> Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com> Cc: linux-arm-kernel@lists.infradead.org Link: https://lore.kernel.org/r/20220812230949.683239-9-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |