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795418 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Souptick Joarder
|
5780a02fd1 |
fs/iomap.c: change return type to vm_fault_t
Change iomap_page_mkwrite() return type to vm_fault_t.
see commit
|
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YueHaibing
|
867632d6a6 |
ocfs2: remove set but not used variable 'rb'
Fixes gcc '-Wunused-but-set-variable' warning: fs/ocfs2/refcounttree.c: In function 'ocfs2_create_reflink_node': fs/ocfs2/refcounttree.c:4138:31: warning: variable 'rb' set but not used [-Wunused-but-set-variable] Link: http://lkml.kernel.org/r/1536198443-113047-1-git-send-email-yuehaibing@huawei.com Signed-off-by: YueHaibing <yuehaibing@huawei.com> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Cc: Mark Fasheh <mark@fasheh.com> Cc: Joel Becker <jlbec@evilplan.org> Cc: Junxiao Bi <junxiao.bi@oracle.com> Cc: Joseph Qi <jiangqi903@gmail.com> Cc: Changwei Ge <ge.changwei@h3c.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Jia-Ju Bai
|
999865764f |
fs/ocfs2/dlm/dlmdebug.c: fix a sleep-in-atomic-context bug in dlm_print_one_mle()
The kernel module may sleep with holding a spinlock. The function call paths (from bottom to top) in Linux-4.16 are: [FUNC] get_zeroed_page(GFP_NOFS) fs/ocfs2/dlm/dlmdebug.c, 332: get_zeroed_page in dlm_print_one_mle fs/ocfs2/dlm/dlmmaster.c, 240: dlm_print_one_mle in __dlm_put_mle fs/ocfs2/dlm/dlmmaster.c, 255: __dlm_put_mle in dlm_put_mle fs/ocfs2/dlm/dlmmaster.c, 254: spin_lock in dlm_put_ml [FUNC] get_zeroed_page(GFP_NOFS) fs/ocfs2/dlm/dlmdebug.c, 332: get_zeroed_page in dlm_print_one_mle fs/ocfs2/dlm/dlmmaster.c, 240: dlm_print_one_mle in __dlm_put_mle fs/ocfs2/dlm/dlmmaster.c, 222: __dlm_put_mle in dlm_put_mle_inuse fs/ocfs2/dlm/dlmmaster.c, 219: spin_lock in dlm_put_mle_inuse To fix this bug, GFP_NOFS is replaced with GFP_ATOMIC. This bug is found by my static analysis tool DSAC. Link: http://lkml.kernel.org/r/20180901112528.27025-1-baijiaju1990@gmail.com Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Cc: Mark Fasheh <mark@fasheh.com> Cc: Joel Becker <jlbec@evilplan.org> Cc: Junxiao Bi <junxiao.bi@oracle.com> Cc: Joseph Qi <jiangqi903@gmail.com> Cc: Changwei Ge <ge.changwei@h3c.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Ding Xiang
|
0ae1c2dbdc |
ocfs2: remove unneeded null check
Null check for kfree is unnecessary, so remove it. Link: http://lkml.kernel.org/r/1535704514-26559-1-git-send-email-dingxiang@cmss.chinamobile.com Signed-off-by: Ding Xiang <dingxiang@cmss.chinamobile.com> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Cc: Mark Fasheh <mark@fasheh.com> Cc: Joel Becker <jlbec@evilplan.org> Cc: Junxiao Bi <junxiao.bi@oracle.com> Cc: Joseph Qi <jiangqi903@gmail.com> Cc: Changwei Ge <ge.changwei@h3c.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Colin Ian King
|
2de24cb742 |
ocfs2: remove unused pointer 'eb'
Pointer 'eb' is being assigned but is never used hence it is redundant and can be removed. Cleans up clang warning: warning: variable 'eb' set but not used [-Wunused-but-set-variable] Link: http://lkml.kernel.org/r/20180828141907.10826-1-colin.king@canonical.com Signed-off-by: Colin Ian King <colin.king@canonical.com> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Cc: Mark Fasheh <mark@fasheh.com> Cc: Joel Becker <jlbec@evilplan.org> Cc: Junxiao Bi <junxiao.bi@oracle.com> Cc: Joseph Qi <jiangqi903@gmail.com> Cc: Changwei Ge <ge.changwei@h3c.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Nathan Chancellor
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32c1b90dcd |
ocfs2/dlm: remove unnecessary parentheses
Clang warns when more than one set of parentheses is used for a
single conditional statement:
fs/ocfs2/dlm/dlmthread.c:534:18: warning: equality comparison with extraneous
parentheses [-Wparentheses-equality]
if ((res->owner == dlm->node_num)) {
~~~~~~~~~~~^~~~~~~~~~~~~~~~
fs/ocfs2/dlm/dlmthread.c:534:18: note: remove extraneous parentheses around the
comparison to silence this warning
if ((res->owner == dlm->node_num)) {
~ ^ ~
Link: http://lkml.kernel.org/r/20180924181929.6853-1-natechancellor@gmail.com
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Reported-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Kirill Tkhai
|
1f6904f729 |
scripts/tags.sh: add DECLARE_HASHTABLE()
In addition to DEFINE_HASHTABLE() add DECLARE_ variant. Link: http://lkml.kernel.org/r/153683203215.13678.11468076350083405643.stgit@localhost.localdomain Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Cc: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: Constantine Shulyupin <const@MakeLinux.com> Cc: Arend van Spriel <arend.vanspriel@broadcom.com> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: Joey Pabalinas <joeypabalinas@gmail.com> Cc: Matthew Wilcox <willy@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Andrey Ryabinin
|
0c96350a2d |
lib/test_kasan.c: add tests for several string/memory API functions
Arch code may have asm implementation of string/memory API functions instead of using generic one from lib/string.c. KASAN don't see memory accesses in asm code, thus can miss many bugs. E.g. on ARM64 KASAN don't see bugs in memchr(), memcmp(), str[r]chr(), str[n]cmp(), str[n]len(). Add tests for these functions to be sure that we notice the problem on other architectures. Link: http://lkml.kernel.org/r/20180920135631.23833-3-aryabinin@virtuozzo.com Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Alexander Potapenko <glider@google.com> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Kyeongdon Kim <kyeongdon.kim@lge.com> Cc: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Andrey Ryabinin
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19a2ca0fb5 |
arm64: lib: use C string functions with KASAN enabled
ARM64 has asm implementation of memchr(), memcmp(), str[r]chr(), str[n]cmp(), str[n]len(). KASAN don't see memory accesses in asm code, thus it can potentially miss many bugs. Ifdef out __HAVE_ARCH_* defines of these functions when KASAN is enabled, so the generic implementations from lib/string.c will be used. We can't just remove the asm functions because efistub uses them. And we can't have two non-weak functions either, so declare the asm functions as weak. Link: http://lkml.kernel.org/r/20180920135631.23833-2-aryabinin@virtuozzo.com Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com> Reported-by: Kyeongdon Kim <kyeongdon.kim@lge.com> Cc: Alexander Potapenko <glider@google.com> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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|
Andrey Ryabinin
|
74f213ea25 |
include/linux/linkage.h: align weak symbols
Since WEAK() supposed to be used instead of ENTRY() to define weak symbols, but unlike ENTRY() it doesn't have ALIGN directive. It seems there is no actual reason to not have, so let's add ALIGN to WEAK() too. Link: http://lkml.kernel.org/r/20180920135631.23833-1-aryabinin@virtuozzo.com Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com> Will Deacon <will.deacon@arm.com>, Catalin Marinas <catalin.marinas@arm.com> Cc: Kyeongdon Kim <kyeongdon.kim@lge.com> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Alexander Potapenko <glider@google.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Sebastien Boisvert
|
4d54954a19 |
include/linux/pfn_t.h: force '~' to be parsed as an unary operator
Tracing the event "fs_dax:dax_pmd_insert_mapping" with perf produces this
warning:
[fs_dax:dax_pmd_insert_mapping] unknown op '~'
It is printed in process_op (tools/lib/traceevent/event-parse.c) because
'~' is parsed as a binary operator.
perf reads the format of fs_dax:dax_pmd_insert_mapping ("print fmt") from
/sys/kernel/debug/tracing/events/fs_dax/dax_pmd_insert_mapping/format .
The format contains:
~(((u64) ~(~(((1UL) << 12)-1)))
^
\ interpreted as a binary operator by process_op().
This part is generated in the declaration of the event class
dax_pmd_insert_mapping_class in include/trace/events/fs_dax.h :
__print_flags_u64(__entry->pfn_val & PFN_FLAGS_MASK, "|",
PFN_FLAGS_TRACE),
This patch adds a pair of parentheses in the declaration of PFN_FLAGS_MASK
to make sure that '~' is parsed as a unary operator by perf.
The part of the format that was problematic is now:
~(((u64) (~(~(((1UL) << 12)-1))))
Now, all the '~' are parsed as unary operators.
Link: http://lkml.kernel.org/r/20181021145939.8760-1-sebhtml@videotron.qc.ca
Signed-off-by: Sebastien Boisvert <sebhtml@videotron.qc.ca>
Acked-by: Dan Williams <dan.j.williams@intel.com>
Cc: "Steven Rostedt (VMware)" <rostedt@goodmis.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: "Tzvetomir Stoyanov (VMware)" <tz.stoyanov@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Ross Zwisler <zwisler@kernel.org>
Cc: Elenie Godzaridis <arangradient@gmail.com>
Cc: <stable@vger.kerenl.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
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Christoph Hellwig
|
ae62c16e10 |
userfaultfd: disable irqs when taking the waitqueue lock
userfaultfd contains howe-grown locking of the waitqueue lock, and does not disable interrupts. This relies on the fact that no one else takes it from interrupt context and violates an invariat of the normal waitqueue locking scheme. With aio poll it is easy to trigger other locks that disable interrupts (or are called from interrupt context). Link: http://lkml.kernel.org/r/20181018154101.18750-1-hch@lst.de Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Andrea Arcangeli <aarcange@redhat.com> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Cc: <stable@vger.kernel.org> [4.19.x] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Vlastimil Babka
|
fa76da461b |
mm: /proc/pid/smaps_rollup: fix NULL pointer deref in smaps_pte_range()
Leonardo reports an apparent regression in 4.19-rc7: BUG: unable to handle kernel NULL pointer dereference at 00000000000000f0 PGD 0 P4D 0 Oops: 0000 [#1] PREEMPT SMP PTI CPU: 3 PID: 6032 Comm: python Not tainted 4.19.0-041900rc7-lowlatency #201810071631 Hardware name: LENOVO 80UG/Toronto 4A2, BIOS 0XCN45WW 08/09/2018 RIP: 0010:smaps_pte_range+0x32d/0x540 Code: 80 00 00 00 00 74 a9 48 89 de 41 f6 40 52 40 0f 85 04 02 00 00 49 2b 30 48 c1 ee 0c 49 03 b0 98 00 00 00 49 8b 80 a0 00 00 00 <48> 8b b8 f0 00 00 00 e8 b7 ef ec ff 48 85 c0 0f 84 71 ff ff ff a8 RSP: 0018:ffffb0cbc484fb88 EFLAGS: 00010202 RAX: 0000000000000000 RBX: 0000560ddb9e9000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000560ddb9e9 RDI: 0000000000000001 RBP: ffffb0cbc484fbc0 R08: ffff94a5a227a578 R09: ffff94a5a227a578 R10: 0000000000000000 R11: 0000560ddbbe7000 R12: ffffe903098ba728 R13: ffffb0cbc484fc78 R14: ffffb0cbc484fcf8 R15: ffff94a5a2e9cf48 FS: 00007f6dfb683740(0000) GS:ffff94a5aaf80000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000000000f0 CR3: 000000011c118001 CR4: 00000000003606e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __walk_page_range+0x3c2/0x6f0 walk_page_vma+0x42/0x60 smap_gather_stats+0x79/0xe0 ? gather_pte_stats+0x320/0x320 ? gather_hugetlb_stats+0x70/0x70 show_smaps_rollup+0xcd/0x1c0 seq_read+0x157/0x400 __vfs_read+0x3a/0x180 ? security_file_permission+0x93/0xc0 ? security_file_permission+0x93/0xc0 vfs_read+0x8f/0x140 ksys_read+0x55/0xc0 __x64_sys_read+0x1a/0x20 do_syscall_64+0x5a/0x110 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Decoded code matched to local compilation+disassembly points to smaps_pte_entry(): } else if (unlikely(IS_ENABLED(CONFIG_SHMEM) && mss->check_shmem_swap && pte_none(*pte))) { page = find_get_entry(vma->vm_file->f_mapping, linear_page_index(vma, addr)); Here, vma->vm_file is NULL. mss->check_shmem_swap should be false in that case, however for smaps_rollup, smap_gather_stats() can set the flag true for one vma and leave it true for subsequent vma's where it should be false. To fix, reset the check_shmem_swap flag to false. There's also related bug which sets mss->swap to shmem_swapped, which in the context of smaps_rollup overwrites any value accumulated from previous vma's. Fix that as well. Note that the report suggests a regression between 4.17.19 and 4.19-rc7, which makes the 4.19 series ending with commit |
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Eric Dumazet
|
aab456dfa4 |
net/neigh: fix NULL deref in pneigh_dump_table()
pneigh can have NULL device pointer, so we need to make
neigh_master_filtered() and neigh_ifindex_filtered() more robust.
syzbot report :
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 15867 Comm: syz-executor2 Not tainted 4.19.0+ #276
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__read_once_size include/linux/compiler.h:179 [inline]
RIP: 0010:list_empty include/linux/list.h:203 [inline]
RIP: 0010:netdev_master_upper_dev_get+0xa1/0x250 net/core/dev.c:6467
RSP: 0018:ffff8801bfaf7220 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffffc90005e92000
RDX: 0000000000000016 RSI: ffffffff860b44d9 RDI: 0000000000000005
RBP: ffff8801bfaf72b0 R08: ffff8801c4c84080 R09: fffffbfff139a580
R10: fffffbfff139a580 R11: ffffffff89cd2c07 R12: 1ffff10037f5ee45
R13: 0000000000000000 R14: ffff8801bfaf7288 R15: 00000000000000b0
FS: 00007f65cc68d700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b33a21000 CR3: 00000001c6116000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
neigh_master_filtered net/core/neighbour.c:2367 [inline]
pneigh_dump_table net/core/neighbour.c:2456 [inline]
neigh_dump_info+0x7a9/0x1ce0 net/core/neighbour.c:2577
netlink_dump+0x606/0x1080 net/netlink/af_netlink.c:2244
__netlink_dump_start+0x59a/0x7c0 net/netlink/af_netlink.c:2352
netlink_dump_start include/linux/netlink.h:216 [inline]
rtnetlink_rcv_msg+0x809/0xc20 net/core/rtnetlink.c:4898
netlink_rcv_skb+0x172/0x440 net/netlink/af_netlink.c:2477
rtnetlink_rcv+0x1c/0x20 net/core/rtnetlink.c:4953
netlink_unicast_kernel net/netlink/af_netlink.c:1310 [inline]
netlink_unicast+0x5a5/0x760 net/netlink/af_netlink.c:1336
netlink_sendmsg+0xa18/0xfc0 net/netlink/af_netlink.c:1917
sock_sendmsg_nosec net/socket.c:621 [inline]
sock_sendmsg+0xd5/0x120 net/socket.c:631
sock_write_iter+0x35e/0x5c0 net/socket.c:900
call_write_iter include/linux/fs.h:1808 [inline]
new_sync_write fs/read_write.c:474 [inline]
__vfs_write+0x6b8/0x9f0 fs/read_write.c:487
vfs_write+0x1fc/0x560 fs/read_write.c:549
ksys_write+0x101/0x260 fs/read_write.c:598
__do_sys_write fs/read_write.c:610 [inline]
__se_sys_write fs/read_write.c:607 [inline]
__x64_sys_write+0x73/0xb0 fs/read_write.c:607
do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x457569
Fixes:
|
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Daniel Borkmann
|
d8fd9e106f |
bpf: fix wrong helper enablement in cgroup local storage
Commit |
||
Mike Manning
|
f64bf6b8ae |
net: allow traceroute with a specified interface in a vrf
Traceroute executed in a vrf succeeds if no device is given or if the vrf is given as the device, but fails if the interface is given as the device. This is for default UDP probes, it succeeds for TCP SYN or ICMP ECHO probes. As the skb bound dev is the interface and the sk dev is the vrf, sk lookup fails for ICMP_DEST_UNREACH and ICMP_TIME_EXCEEDED messages. The solution is for the secondary dev to be passed so that the interface is available for the device match to succeed, in the same way as is already done for non-error cases. Signed-off-by: Mike Manning <mmanning@vyatta.att-mail.com> Reviewed-by: David Ahern <dsahern@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
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Hangbin Liu
|
5a2de63fd1 |
bridge: do not add port to router list when receives query with source 0.0.0.0
Based on RFC 4541, 2.1.1. IGMP Forwarding Rules
The switch supporting IGMP snooping must maintain a list of
multicast routers and the ports on which they are attached. This
list can be constructed in any combination of the following ways:
a) This list should be built by the snooping switch sending
Multicast Router Solicitation messages as described in IGMP
Multicast Router Discovery [MRDISC]. It may also snoop
Multicast Router Advertisement messages sent by and to other
nodes.
b) The arrival port for IGMP Queries (sent by multicast routers)
where the source address is not 0.0.0.0.
We should not add the port to router list when receives query with source
0.0.0.0.
Reported-by: Ying Xu <yinxu@redhat.com>
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Acked-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Acked-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
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Karsten Graul
|
fb692ec411 |
net/smc: fix smc_buf_unuse to use the lgr pointer
The pointer to the link group is unset in the smc connection structure
right before the call to smc_buf_unuse. Provide the lgr pointer to
smc_buf_unuse explicitly.
And move the call to smc_lgr_schedule_free_work to the end of
smc_conn_free.
Fixes:
|
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Stefano Brivio
|
ee1abcf689 |
ipv6/ndisc: Preserve IPv6 control buffer if protocol error handlers are called
Commit |
||
David S. Miller
|
6c2fc9cddc |
sparc64: Rework xchg() definition to avoid warnings.
Such as: fs/ocfs2/file.c: In function ‘ocfs2_file_write_iter’: ./arch/sparc/include/asm/cmpxchg_64.h:55:22: warning: value computed is not used [-Wunused-value] #define xchg(ptr,x) ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr)))) and drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c: In function ‘ixgbevf_xdp_setup’: ./arch/sparc/include/asm/cmpxchg_64.h:55:22: warning: value computed is not used [-Wunused-value] #define xchg(ptr,x) ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr)))) Signed-off-by: David S. Miller <davem@davemloft.net> |
||
|
David S. Miller
|
2b4792eaa9 |
sparc64: Export __node_distance.
Some drivers reference it via node_distance(), for example the NVME host driver core. ERROR: "__node_distance" [drivers/nvme/host/nvme-core.ko] undefined! make[1]: *** [scripts/Makefile.modpost:92: __modpost] Error 1 Signed-off-by: David S. Miller <davem@davemloft.net> |
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David Miller
|
5b4fc3882a |
sparc64: Make corrupted user stacks more debuggable.
Right now if we get a corrupted user stack frame we do a do_exit(SIGILL) which is not helpful. If under a debugger, this behavior causes the inferior process to exit. So the register and other state cannot be examined at the time of the event. Instead, conditionally log a rate limited kernel log message and then force a SIGSEGV. With bits and ideas borrowed (as usual) from powerpc. Signed-off-by: David S. Miller <davem@davemloft.net> |
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Linus Torvalds
|
cc10ad25bb |
Here are the main MIPS updates for 4.20:
- kexec support for the generic MIPS platform when running on a CPU
including the MIPS Coherence Manager & related hardware.
- Improvements to the definition of memory barriers used around MMIO
accesses, and fixes in their use.
- Switch to CONFIG_NO_BOOTMEM from Mike Rapoport, finally dropping
reliance on the old bootmem code.
- A number of fixes & improvements for Loongson 3 systems.
- DT & config updates for the Microsemi Ocelot platform.
- Workaround to enable USB power on the Netgear WNDR3400v3.
- Various cleanups & fixes.
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Merge tag 'mips_4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux
Pull MIPS updates from Paul Burton:
- kexec support for the generic MIPS platform when running on a CPU
including the MIPS Coherence Manager & related hardware.
- Improvements to the definition of memory barriers used around MMIO
accesses, and fixes in their use.
- Switch to CONFIG_NO_BOOTMEM from Mike Rapoport, finally dropping
reliance on the old bootmem code.
- A number of fixes & improvements for Loongson 3 systems.
- DT & config updates for the Microsemi Ocelot platform.
- Workaround to enable USB power on the Netgear WNDR3400v3.
- Various cleanups & fixes.
* tag 'mips_4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (51 commits)
MIPS: Cleanup DSP ASE detection
MIPS: dts: Change upper case to lower case
MIPS: generic: Add Network, SPI and I2C to ocelot_defconfig
MIPS: Loongson-3: Fix BRIDGE irq delivery problem
MIPS: Loongson-3: Fix CPU UART irq delivery problem
MIPS: Remove unused PREF, PREFE & PREFX macros
MIPS: lib: Use kernel_pref & user_pref in memcpy()
MIPS: Remove unused CAT macro
MIPS: Add kernel_pref & user_pref helpers
MIPS: Remove unused TTABLE macro
MIPS: Remove unused PIC macros
MIPS: Remove unused MOVN & MOVZ macros
MIPS: Provide actually relaxed MMIO accessors
MIPS: Enforce strong ordering for MMIO accessors
MIPS: Correct `mmiowb' barrier for `wbflush' platforms
MIPS: Define MMIO ordering barriers
MIPS: mscc: add PCB120 to the ocelot fitImage
MIPS: mscc: add DT for Ocelot PCB120
MIPS: memset: Limit excessive `noreorder' assembly mode use
MIPS: memset: Fix CPU_DADDI_WORKAROUNDS `small_fixup' regression
...
|
||
|
Linus Torvalds
|
ec9c166434 |
A couple of MIPS fixes that should have ideally made it for v4.19, but
hey-ho here they are now:
- A fix for potential poor stack placement introduced in v4.19-rc8.
- A fix for a warning introduced in use of TURBOchannel devices by DMA
changes in v4.16.
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Merge tag 'mips_fixes_4.20_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux
Pull MIPS fixes from Paul Burton:
"A couple of MIPS fixes that should have ideally made it for v4.19, but
hey-ho here they are now:
- A fix for potential poor stack placement introduced in v4.19-rc8.
- A fix for a warning introduced in use of TURBOchannel devices by
DMA changes in v4.16"
* tag 'mips_fixes_4.20_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
MIPS: VDSO: Reduce VDSO_RANDOMIZE_SIZE to 64MB for 64bit
TC: Set DMA masks for devices
|
||
|
Linus Torvalds
|
685f7e4f16 |
powerpc updates for 4.20
Notable changes:
- A large series to rewrite our SLB miss handling, replacing a lot of fairly
complicated asm with much fewer lines of C.
- Following on from that, we now maintain a cache of SLB entries for each
process and preload them on context switch. Leading to a 27% speedup for our
context switch benchmark on Power9.
- Improvements to our handling of SLB multi-hit errors. We now print more debug
information when they occur, and try to continue running by flushing the SLB
and reloading, rather than treating them as fatal.
- Enable THP migration on 64-bit Book3S machines (eg. Power7/8/9).
- Add support for physical memory up to 2PB in the linear mapping on 64-bit
Book3S. We only support up to 512TB as regular system memory, otherwise the
percpu allocator runs out of vmalloc space.
- Add stack protector support for 32 and 64-bit, with a per-task canary.
- Add support for PTRACE_SYSEMU and PTRACE_SYSEMU_SINGLESTEP.
- Support recognising "big cores" on Power9, where two SMT4 cores are presented
to us as a single SMT8 core.
- A large series to cleanup some of our ioremap handling and PTE flags.
- Add a driver for the PAPR SCM (storage class memory) interface, allowing
guests to operate on SCM devices (acked by Dan).
- Changes to our ftrace code to handle very large kernels, where we need to use
a trampoline to get to ftrace_caller().
Many other smaller enhancements and cleanups.
Thanks to:
Alan Modra, Alistair Popple, Aneesh Kumar K.V, Anton Blanchard, Aravinda
Prasad, Bartlomiej Zolnierkiewicz, Benjamin Herrenschmidt, Breno Leitao,
Cédric Le Goater, Christophe Leroy, Christophe Lombard, Dan Carpenter, Daniel
Axtens, Finn Thain, Gautham R. Shenoy, Gustavo Romero, Haren Myneni, Hari
Bathini, Jia Hongtao, Joel Stanley, John Allen, Laurent Dufour, Madhavan
Srinivasan, Mahesh Salgaonkar, Mark Hairgrove, Masahiro Yamada, Michael
Bringmann, Michael Neuling, Michal Suchanek, Murilo Opsfelder Araujo, Nathan
Fontenot, Naveen N. Rao, Nicholas Piggin, Nick Desaulniers, Oliver O'Halloran,
Paul Mackerras, Petr Vorel, Rashmica Gupta, Reza Arbab, Rob Herring, Sam
Bobroff, Samuel Mendoza-Jonas, Scott Wood, Stan Johnson, Stephen Rothwell,
Stewart Smith, Suraj Jitindar Singh, Tyrel Datwyler, Vaibhav Jain, Vasant
Hegde, YueHaibing, zhong jiang,
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Merge tag 'powerpc-4.20-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc updates from Michael Ellerman:
"Notable changes:
- A large series to rewrite our SLB miss handling, replacing a lot of
fairly complicated asm with much fewer lines of C.
- Following on from that, we now maintain a cache of SLB entries for
each process and preload them on context switch. Leading to a 27%
speedup for our context switch benchmark on Power9.
- Improvements to our handling of SLB multi-hit errors. We now print
more debug information when they occur, and try to continue running
by flushing the SLB and reloading, rather than treating them as
fatal.
- Enable THP migration on 64-bit Book3S machines (eg. Power7/8/9).
- Add support for physical memory up to 2PB in the linear mapping on
64-bit Book3S. We only support up to 512TB as regular system
memory, otherwise the percpu allocator runs out of vmalloc space.
- Add stack protector support for 32 and 64-bit, with a per-task
canary.
- Add support for PTRACE_SYSEMU and PTRACE_SYSEMU_SINGLESTEP.
- Support recognising "big cores" on Power9, where two SMT4 cores are
presented to us as a single SMT8 core.
- A large series to cleanup some of our ioremap handling and PTE
flags.
- Add a driver for the PAPR SCM (storage class memory) interface,
allowing guests to operate on SCM devices (acked by Dan).
- Changes to our ftrace code to handle very large kernels, where we
need to use a trampoline to get to ftrace_caller().
And many other smaller enhancements and cleanups.
Thanks to: Alan Modra, Alistair Popple, Aneesh Kumar K.V, Anton
Blanchard, Aravinda Prasad, Bartlomiej Zolnierkiewicz, Benjamin
Herrenschmidt, Breno Leitao, Cédric Le Goater, Christophe Leroy,
Christophe Lombard, Dan Carpenter, Daniel Axtens, Finn Thain, Gautham
R. Shenoy, Gustavo Romero, Haren Myneni, Hari Bathini, Jia Hongtao,
Joel Stanley, John Allen, Laurent Dufour, Madhavan Srinivasan, Mahesh
Salgaonkar, Mark Hairgrove, Masahiro Yamada, Michael Bringmann,
Michael Neuling, Michal Suchanek, Murilo Opsfelder Araujo, Nathan
Fontenot, Naveen N. Rao, Nicholas Piggin, Nick Desaulniers, Oliver
O'Halloran, Paul Mackerras, Petr Vorel, Rashmica Gupta, Reza Arbab,
Rob Herring, Sam Bobroff, Samuel Mendoza-Jonas, Scott Wood, Stan
Johnson, Stephen Rothwell, Stewart Smith, Suraj Jitindar Singh, Tyrel
Datwyler, Vaibhav Jain, Vasant Hegde, YueHaibing, zhong jiang"
* tag 'powerpc-4.20-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (221 commits)
Revert "selftests/powerpc: Fix out-of-tree build errors"
powerpc/msi: Fix compile error on mpc83xx
powerpc: Fix stack protector crashes on CPU hotplug
powerpc/traps: restore recoverability of machine_check interrupts
powerpc/64/module: REL32 relocation range check
powerpc/64s/radix: Fix radix__flush_tlb_collapsed_pmd double flushing pmd
selftests/powerpc: Add a test of wild bctr
powerpc/mm: Fix page table dump to work on Radix
powerpc/mm/radix: Display if mappings are exec or not
powerpc/mm/radix: Simplify split mapping logic
powerpc/mm/radix: Remove the retry in the split mapping logic
powerpc/mm/radix: Fix small page at boundary when splitting
powerpc/mm/radix: Fix overuse of small pages in splitting logic
powerpc/mm/radix: Fix off-by-one in split mapping logic
powerpc/ftrace: Handle large kernel configs
powerpc/mm: Fix WARN_ON with THP NUMA migration
selftests/powerpc: Fix out-of-tree build errors
powerpc/time: no steal_time when CONFIG_PPC_SPLPAR is not selected
powerpc/time: Only set CONFIG_ARCH_HAS_SCALED_CPUTIME on PPC64
powerpc/time: isolate scaled cputime accounting in dedicated functions.
...
|
||
|
Linus Torvalds
|
c7a2c49ea6 |
NFS client updates for Linux 4.20
Highlights include:
Stable fixes:
- Fix the NFSv4.1 r/wsize sanity checking
- Reset the RPC/RDMA credit grant properly after a disconnect
- Fix a missed page unlock after pg_doio()
Features and optimisations:
- Overhaul of the RPC client socket code to eliminate a locking bottleneck
and reduce the latency when transmitting lots of requests in parallel.
- Allow parallelisation of the RPCSEC_GSS encoding of an RPC request.
- Convert the RPC client socket receive code to use iovec_iter() for
improved efficiency.
- Convert several NFS and RPC lookup operations to use RCU instead of
taking global locks.
- Avoid the need for BH-safe locks in the RPC/RDMA back channel.
Bugfixes and cleanups:
- Fix lock recovery during NFSv4 delegation recalls
- Fix the NFSv4 + NFSv4.1 "lookup revalidate + open file" case.
- Fixes for the RPC connection metrics
- Various RPC client layer cleanups to consolidate stream based sockets
- RPC/RDMA connection cleanups
- Simplify the RPC/RDMA cleanup after memory operation failures
- Clean ups for NFS v4.2 copy completion and NFSv4 open state reclaim.
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Merge tag 'nfs-for-4.20-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Pull NFS client updates from Trond Myklebust:
"Highlights include:
Stable fixes:
- Fix the NFSv4.1 r/wsize sanity checking
- Reset the RPC/RDMA credit grant properly after a disconnect
- Fix a missed page unlock after pg_doio()
Features and optimisations:
- Overhaul of the RPC client socket code to eliminate a locking
bottleneck and reduce the latency when transmitting lots of
requests in parallel.
- Allow parallelisation of the RPCSEC_GSS encoding of an RPC request.
- Convert the RPC client socket receive code to use iovec_iter() for
improved efficiency.
- Convert several NFS and RPC lookup operations to use RCU instead of
taking global locks.
- Avoid the need for BH-safe locks in the RPC/RDMA back channel.
Bugfixes and cleanups:
- Fix lock recovery during NFSv4 delegation recalls
- Fix the NFSv4 + NFSv4.1 "lookup revalidate + open file" case.
- Fixes for the RPC connection metrics
- Various RPC client layer cleanups to consolidate stream based
sockets
- RPC/RDMA connection cleanups
- Simplify the RPC/RDMA cleanup after memory operation failures
- Clean ups for NFS v4.2 copy completion and NFSv4 open state
reclaim"
* tag 'nfs-for-4.20-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (97 commits)
SUNRPC: Convert the auth cred cache to use refcount_t
SUNRPC: Convert auth creds to use refcount_t
SUNRPC: Simplify lookup code
SUNRPC: Clean up the AUTH cache code
NFS: change sign of nfs_fh length
sunrpc: safely reallow resvport min/max inversion
nfs: remove redundant call to nfs_context_set_write_error()
nfs: Fix a missed page unlock after pg_doio()
SUNRPC: Fix a compile warning for cmpxchg64()
NFSv4.x: fix lock recovery during delegation recall
SUNRPC: use cmpxchg64() in gss_seq_send64_fetch_and_inc()
xprtrdma: Squelch a sparse warning
xprtrdma: Clean up xprt_rdma_disconnect_inject
xprtrdma: Add documenting comments
xprtrdma: Report when there were zero posted Receives
xprtrdma: Move rb_flags initialization
xprtrdma: Don't disable BH's in backchannel server
xprtrdma: Remove memory address of "ep" from an error message
xprtrdma: Rename rpcrdma_qp_async_error_upcall
xprtrdma: Simplify RPC wake-ups on connect
...
|
||
|
Linus Torvalds
|
033078a9af |
3 smb3 fixes for stable, patches for improved debugging and perf gathering, and much improved performance for most metadata operations (expanded use of compounding)
-----BEGIN PGP SIGNATURE----- iQGzBAABCgAdFiEE6fsu8pdIjtWE/DpLiiy9cAdyT1EFAlvR8lcACgkQiiy9cAdy T1FNtgv/fpnMnf/4JPE40NgJ6CUcv4xsJ3bDzmezB5ZUgoNigtVeUMSBa8qCEBcg cdC243TOpwNGaWQ1yzRN4kyGq1cAE9B1xal4n7+xlii+ZpWXwrkOAiF27UTAIGTR ck3IfeS529QoQt9ReI4v+pWYKZOnlbWgF7iBflg0Snsz/JvICQ05wRA9VaXBJIz8 Pwb3SDPCrON1KRJzJVDjC6AaYhZqu2VLbSV9fOhZ5WVcHb/t0EUqsFvgMzhk2+tv Rh+9zNzcQWyYI8KtYQmWMMoSk7F8OGlARWXW0ROfOoQwC70zg35F+tGUahlWsIYD 19TLJy28g5Gqh0DZoPmtpNUdu1NCfy+vQcqaSNnAaQreMlqmV6ODxjvz3DeGL9lK Teo0V9dwWOZNFneFTpVsrWL4KQEZfDPDt1L6e3GOL5t6QLOZa5IuPVs8A9txqFCD kTAIQstESmXOrl+HpP64LcovV4BaD05st+fo7Cec16UDJjEqxCmHUSIYw3kFnCny 4UAITp4V =q4Qs -----END PGP SIGNATURE----- Merge tag '4.20-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6 Pull cifs updates from Steve French: "Three smb3 fixes for stable, patches for improved debugging and perf gathering, and much improved performance for most metadata operations (expanded use of compounding)" * tag '4.20-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6: (46 commits) cifs: update internal module version number for cifs.ko to 2.14 smb3: add debug for unexpected mid cancellation cifs: allow calling SMB2_xxx_free(NULL) smb3 - clean up debug output displaying network interfaces smb3: show number of current open files in /proc/fs/cifs/Stats cifs: add support for ioctl on directories cifs: fallback to older infolevels on findfirst queryinfo retry smb3: do not attempt cifs operation in smb3 query info error path smb3: send backup intent on compounded query info cifs: track writepages in vfs operation counters smb2: fix uninitialized variable bug in smb2_ioctl_query_info cifs: add IOCTL for QUERY_INFO passthrough to userspace cifs: minor clarification in comments CIFS: Print message when attempting a mount CIFS: Adds information-level logging function cifs: OFD locks do not conflict with eachothers CIFS: SMBD: Do not call ib_dereg_mr on invalidated memory registration CIFS: pass page offsets on SMB1 read/write fs/cifs: fix uninitialised variable warnings smb3: add tracepoint for sending lease break responses to server ... |
||
|
Linus Torvalds
|
7abe849315 |
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md
Pull md updates from Shaohua Li: "This mainly improves raid10 cluster and fixes some bugs: - raid10 cluster improvements from Guoqing - Memory leak fixes from Jack and Xiao - raid10 hang fix from Alex - raid5 block faulty device fix from Mariusz - metadata update fix from Neil - Invalid disk role fix from Me - Other clearnups" * 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md: MD: Memory leak when flush bio size is zero md: fix memleak for mempool md-cluster: remove suspend_info md-cluster: send BITMAP_NEEDS_SYNC message if reshaping is interrupted md-cluster/bitmap: don't call md_bitmap_sync_with_cluster during reshaping stage md-cluster/raid10: don't call remove_and_add_spares during reshaping stage md-cluster/raid10: call update_size in md_reap_sync_thread md-cluster: introduce resync_info_get interface for sanity check md-cluster/raid10: support add disk under grow mode md-cluster/raid10: resize all the bitmaps before start reshape MD: fix invalid stored role for a disk - try2 md/bitmap: use mddev_suspend/resume instead of ->quiesce() md: remove redundant code that is no longer reachable md: allow metadata updates while suspending an array - fix MD: fix invalid stored role for a disk md/raid10: Fix raid10 replace hang when new added disk faulty raid5: block failing device if raid will be failed |
||
|
Linus Torvalds
|
71f4d95b23 |
- Biggest change this cycle is to remove support for the legacy IO path
(.request_fn) from request-based DM. Jens has already started preparing for complete removal of the legacy IO path in 4.21 but this earlier removal of support from DM has been coordinated with Jens (as evidenced by the commit being attributed to him). Making request-based DM exclussively blk-mq only cleans up that portion of DM core quite nicely. - Convert the thinp and zoned targets over to using refcount_t where applicable. - A couple fixes to the DM zoned target for refcounting and other races buried in the implementation of metadata block creation and use. - Small cleanups to remove redundant unlikely() around a couple WARN_ON_ONCE(). - Simplify how dm-ioctl copies from userspace, eliminating some potential for a malicious user trying to change the executed ioctl after its processing has begun. - Tweaked DM crypt target to use the DM device name when naming the various workqueues created for a particular DM crypt device (makes the N workqueues for a DM crypt device more easily understood and enhances user's accounting capabilities at a glance via "ps") - Small fixup to remove dead branch in DM writecache's memory_entry(). -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQEcBAABAgAGBQJb0zCmAAoJEMUj8QotnQNaUKwIAKFC3cuTtQyh3LomSbT4uAr5 6apBSVcxVhqU+isriW3HmBPkO4HGyqMWjX5oQGHrOj0YK0i1H65Nq3qH9ATaiSHn awdo8A4YmClF5Mojc51UebXIH0IfnGSOKH/FHNhQzT3jAdn+vYinMSZ28JwFPgKW DsVOSM1dlJZBWRXhQNpyCjVl9Xb3rRUOnkfG0endyMfOsnoxKurhwSkXoStzCdQn O5ubt1XT3wMKoI1k9QWjfrBU1NtZZYD+kQ6EfkYXfL9RNhhZjwzO/eNtqT3jnKsq qbcd8/0JIUttPf7+F0URG9mbMbebfJGqNAaJWcnlRbCHmgUBBGVWsnl8MTWOLkw= =MdDN -----END PGP SIGNATURE----- Merge tag 'for-4.20/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm Pull device mapper updates from Mike Snitzer: - The biggest change this cycle is to remove support for the legacy IO path (.request_fn) from request-based DM. Jens has already started preparing for complete removal of the legacy IO path in 4.21 but this earlier removal of support from DM has been coordinated with Jens (as evidenced by the commit being attributed to him). Making request-based DM exclussively blk-mq only cleans up that portion of DM core quite nicely. - Convert the thinp and zoned targets over to using refcount_t where applicable. - A couple fixes to the DM zoned target for refcounting and other races buried in the implementation of metadata block creation and use. - Small cleanups to remove redundant unlikely() around a couple WARN_ON_ONCE(). - Simplify how dm-ioctl copies from userspace, eliminating some potential for a malicious user trying to change the executed ioctl after its processing has begun. - Tweaked DM crypt target to use the DM device name when naming the various workqueues created for a particular DM crypt device (makes the N workqueues for a DM crypt device more easily understood and enhances user's accounting capabilities at a glance via "ps") - Small fixup to remove dead branch in DM writecache's memory_entry(). * tag 'for-4.20/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: dm writecache: remove disabled code in memory_entry() dm zoned: fix various dmz_get_mblock() issues dm zoned: fix metadata block ref counting dm raid: avoid bitmap with raid4/5/6 journal device dm crypt: make workqueue names device-specific dm: add dm_table_device_name() dm ioctl: harden copy_params()'s copy_from_user() from malicious users dm: remove unnecessary unlikely() around WARN_ON_ONCE() dm zoned: target: use refcount_t for dm zoned reference counters dm thin: use refcount_t for thin_c reference counting dm table: require that request-based DM be layered on blk-mq devices dm: rename DM_TYPE_MQ_REQUEST_BASED to DM_TYPE_REQUEST_BASED dm: remove legacy request-based IO path |
||
|
Linus Torvalds
|
6080ad3a99 |
for-linus-20181026
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||
|
Linus Torvalds
|
b27186abb3 |
Devicetree updates for 4.20:
- Sync dtc with upstream version v1.4.7-14-gc86da84d30e4
- Work to get rid of direct accesses to struct device_node name and
type pointers in preparation for removing them. New helpers for
parsing DT cpu nodes and conversions to use the helpers. printk
conversions to %pOFn for printing DT node names. Most went thru
subystem trees, so this is the remainder.
- Fixes to DT child node lookups to actually be restricted to child
nodes instead of treewide.
- Refactoring of dtb targets out of arch code. This makes the support
more uniform and enables building all dtbs on c6x, microblaze, and
powerpc.
- Various DT binding updates for Renesas r8a7744 SoC
- Vendor prefixes for Facebook, OLPC
- Restructuring of some ARM binding docs moving some peripheral bindings
out of board/SoC binding files
- New "secure-chosen" binding for secure world settings on ARM
- Dual licensing of 2 DT IRQ binding headers
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Merge tag 'devicetree-for-4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull Devicetree updates from Rob Herring:
"A bit bigger than normal as I've been busy this cycle.
There's a few things with dependencies and a few things subsystem
maintainers didn't pick up, so I'm taking them thru my tree.
The fixes from Johan didn't get into linux-next, but they've been
waiting for some time now and they are what's left of what subsystem
maintainers didn't pick up.
Summary:
- Sync dtc with upstream version v1.4.7-14-gc86da84d30e4
- Work to get rid of direct accesses to struct device_node name and
type pointers in preparation for removing them. New helpers for
parsing DT cpu nodes and conversions to use the helpers. printk
conversions to %pOFn for printing DT node names. Most went thru
subystem trees, so this is the remainder.
- Fixes to DT child node lookups to actually be restricted to child
nodes instead of treewide.
- Refactoring of dtb targets out of arch code. This makes the support
more uniform and enables building all dtbs on c6x, microblaze, and
powerpc.
- Various DT binding updates for Renesas r8a7744 SoC
- Vendor prefixes for Facebook, OLPC
- Restructuring of some ARM binding docs moving some peripheral
bindings out of board/SoC binding files
- New "secure-chosen" binding for secure world settings on ARM
- Dual licensing of 2 DT IRQ binding headers"
* tag 'devicetree-for-4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (78 commits)
ARM: dt: relicense two DT binding IRQ headers
power: supply: twl4030-charger: fix OF sibling-node lookup
NFC: nfcmrvl_uart: fix OF child-node lookup
net: stmmac: dwmac-sun8i: fix OF child-node lookup
net: bcmgenet: fix OF child-node lookup
drm/msm: fix OF child-node lookup
drm/mediatek: fix OF sibling-node lookup
of: Add missing exports of node name compare functions
dt-bindings: Add OLPC vendor prefix
dt-bindings: misc: bk4: Add device tree binding for Liebherr's BK4 SPI bus
dt-bindings: thermal: samsung: Add SPDX license identifier
dt-bindings: clock: samsung: Add SPDX license identifiers
dt-bindings: timer: ostm: Add R7S9210 support
dt-bindings: phy: rcar-gen2: Add r8a7744 support
dt-bindings: can: rcar_can: Add r8a7744 support
dt-bindings: timer: renesas, cmt: Document r8a7744 CMT support
dt-bindings: watchdog: renesas-wdt: Document r8a7744 support
dt-bindings: thermal: rcar: Add device tree support for r8a7744
Documentation: dt: Add binding for /secure-chosen/stdout-path
dt-bindings: arm: zte: Move sysctrl bindings to their own doc
...
|
||
|
Linus Torvalds
|
0ef7791e2b |
Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal
Pull thermal SoC updates from Eduardo Valentin:
"Several new things coming up. Specifics:
- Rework of tsens and hisi thermal drivers
- OF-thermal now allows sharing multiple cooling devices on maps
- Added support for r8a7744 and R8A77970 on rcar thermal driver
- Added support for r8a774a1 on rcar_gen3 thermal driver
- New thermal driver stm32
- Fixes on multiple thermal drivers: of-thermal, imx, qoriq, armada,
qcom-spmi, rcar, da9062/61"
* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal: (41 commits)
thermal: da9062/61: Prevent hardware access during system suspend
thermal: rcar_thermal: Prevent doing work after unbind
thermal: rcar_thermal: Prevent hardware access during system suspend
thermal: rcar_gen3_thermal: add R8A77980 support
dt-bindings: thermal: rcar-gen3-thermal: document R8A77980 bindings
thermal: add stm32 thermal driver
dt-bindings: stm32-thermal: add binding documentation
thermal: rcar_thermal: add R8A77970 support
dt-bindings: thermal: rcar-thermal: document R8A77970 bindings
thermal: rcar_thermal: fix duplicate IRQ request
dt-bindings: thermal: rcar: Add device tree support for r8a7744
thermal/drivers/hisi: Add the dual clusters sensors for hi3660
thermal/drivers/hisi: Add more sensors channel
thermal/drivers/hisi: Remove pointless irq field
thermal/drivers/hisi: Use platform_get_irq_byname
thermal/drivers/hisi: Replace macro name with relevant sensor location
thermal/drivers/hisi: Add multiple sensors support
thermal/drivers/hisi: Prepare to support multiple sensors
thermal/drivers/hisi: Factor out the probe functions
thermal/drivers/hisi: Set the thermal zone private data to the sensor pointer
...
|
||
Liviu Dudau
|
72b8ad40e1 |
leds: gpio: set led_dat->gpiod pointer for OF defined GPIO leds
Commit |
||
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Linus Torvalds
|
befa936331 |
Second batch of dma-mapping updates for 4.20:
- various swiotlb cleanups - do not dip into the ѕwiotlb pool for dma coherent allocations - add support for not cache coherent DMA to swiotlb - switch ARM64 to use the generic swiotlb_dma_ops -----BEGIN PGP SIGNATURE----- iQI/BAABCgApFiEEgdbnc3r/njty3Iq9D55TZVIEUYMFAlvTDNELHGhjaEBsc3Qu ZGUACgkQD55TZVIEUYOfdg//a4nGw5bTwj2uol/oS/vOdpE0otR3XpnNC3oopHd3 3xbb0LUR12A0YJmV5Ao9iIRFc60boLNblZglho8Diqks3P9+nYWCQ2rQ+o7ZsfK9 xGBNP0HrdGKPBzs9JodvhP/WBNWEReNbb6KwMe63LtDqUqNDNFmlYfxUgQ+fbgST ZscR7iHJT1Nl0PoJ0mVziPFDA5DFB6JN7z0nU9uddVXLM7MPOFVX/WsFdLZLg/8W /jgQ1gQ+gRMBSyctR8u+LG5KTxtYofiPo46lbyuSa5sx+cnZmjo7Uk5OZgs3soHn gnobSjxgNbPgt8ttaKoFtOpyuO/3cLQeObS8i2MQuzvYpUD/nBT5q6l8XZBAFQCc BkOe0qaBa2BrSG2O7BRgagHuSUjpgkxR3vyVT5e6eyr7uFk+LWslJKx4Uem3uIRf yfNQzx91Xaw7ypaF7//jVPeWucLFZuwYsy13ZAg5D71vYpZBkfgHoMSCrmZQT9o/ V1ijmJy2ZDlGIKH95A0Utr6QKrci1drigg8Zce5A2E2EPAzTiro90ZeGT2tcJmVs LOrbxEN1Dctkkk5l6PJE3k4zYCP7rW4lbW7wPcLZrJoptsm3sQprE10zaAFGKks6 vPLY615FK/JydJ9AIjx6PhFiY6M6Zb2er6CbRo18BjpqjKHgmK0A/uCbLhN+Qnac IoE= =pI5p -----END PGP SIGNATURE----- Merge tag 'dma-mapping-4.20-1' of git://git.infradead.org/users/hch/dma-mapping Pull more dma-mapping updates from Christoph Hellwig: - various swiotlb cleanups - do not dip into the ѕwiotlb pool for dma coherent allocations - add support for not cache coherent DMA to swiotlb - switch ARM64 to use the generic swiotlb_dma_ops * tag 'dma-mapping-4.20-1' of git://git.infradead.org/users/hch/dma-mapping: arm64: use the generic swiotlb_dma_ops swiotlb: add support for non-coherent DMA swiotlb: don't dip into swiotlb pool for coherent allocations swiotlb: refactor swiotlb_map_page swiotlb: use swiotlb_map_page in swiotlb_map_sg_attrs swiotlb: merge swiotlb_unmap_page and unmap_single swiotlb: remove the overflow buffer swiotlb: do not panic on mapping failures swiotlb: mark is_swiotlb_buffer static swiotlb: remove a pointless comment |
||
|
Linus Torvalds
|
d1f2b1710d |
IOMMU Updates for Linux v4.20
These updates bring:
- Debugfs support for the Intel VT-d driver. When enabled, it
now also exposes some of its internal data structures to
user-space for debugging purposes.
- ARM-SMMU driver now uses the generic deferred flushing
and fast-path iova allocation code. This is expected to be a
major performance improvement, as this allocation path scales
a lot better.
- Support for r8a7744 in the Renesas iommu driver
- Couple of minor fixes and improvements all over the place
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Merge tag 'iommu-updates-v4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull IOMMU updates from Joerg Roedel:
- Debugfs support for the Intel VT-d driver.
When enabled, it now also exposes some of its internal data
structures to user-space for debugging purposes.
- ARM-SMMU driver now uses the generic deferred flushing and fast-path
iova allocation code.
This is expected to be a major performance improvement, as this
allocation path scales a lot better.
- Support for r8a7744 in the Renesas iommu driver
- Couple of minor fixes and improvements all over the place
* tag 'iommu-updates-v4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (39 commits)
iommu/arm-smmu-v3: Remove unnecessary wrapper function
iommu/arm-smmu-v3: Add SPDX header
iommu/amd: Add default branch in amd_iommu_capable()
dt-bindings: iommu: ipmmu-vmsa: Add r8a7744 support
iommu/amd: Move iommu_init_pci() to .init section
iommu/arm-smmu: Support non-strict mode
iommu/io-pgtable-arm-v7s: Add support for non-strict mode
iommu/arm-smmu-v3: Add support for non-strict mode
iommu/io-pgtable-arm: Add support for non-strict mode
iommu: Add "iommu.strict" command line option
iommu/dma: Add support for non-strict mode
iommu/arm-smmu: Ensure that page-table updates are visible before TLBI
iommu/arm-smmu-v3: Implement flush_iotlb_all hook
iommu/arm-smmu-v3: Avoid back-to-back CMD_SYNC operations
iommu/arm-smmu-v3: Fix unexpected CMD_SYNC timeout
iommu/io-pgtable-arm: Fix race handling in split_blk_unmap()
iommu/arm-smmu-v3: Fix a couple of minor comment typos
iommu: Fix a typo
iommu: Remove .domain_{get,set}_windows
iommu: Tidy up window attributes
...
|
||
|
Linus Torvalds
|
18d0eae30e |
Char/Misc driver patches for 4.20-rc1
Here is the big set of char/misc patches for 4.20-rc1. Loads of things here, we have new code in all of these driver subsystems: fpga stm extcon nvmem eeprom hyper-v gsmi coresight thunderbolt vmw_balloon goldfish soundwire along with lots of fixes and minor changes to other small drivers. All of these have been in linux-next for a while with no reported issues. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -----BEGIN PGP SIGNATURE----- iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCW9Le5A8cZ3JlZ0Brcm9h aC5jb20ACgkQMUfUDdst+yn+BQCfZ6DtCIgqo0UW3dLV8Fd0wya9kw0AoNglzJJ6 YRZiaSdRiggARpNdh3ME =97BX -----END PGP SIGNATURE----- Merge tag 'char-misc-4.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver updates from Greg KH: "Here is the big set of char/misc patches for 4.20-rc1. Loads of things here, we have new code in all of these driver subsystems: - fpga - stm - extcon - nvmem - eeprom - hyper-v - gsmi - coresight - thunderbolt - vmw_balloon - goldfish - soundwire along with lots of fixes and minor changes to other small drivers. All of these have been in linux-next for a while with no reported issues" * tag 'char-misc-4.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (245 commits) Documentation/security-bugs: Clarify treatment of embargoed information lib: Fix ia64 bootloader linkage MAINTAINERS: Clarify UIO vs UIOVEC maintainer docs/uio: fix a grammar nitpick docs: fpga: document programming fpgas using regions fpga: add devm_fpga_region_create fpga: bridge: add devm_fpga_bridge_create fpga: mgr: add devm_fpga_mgr_create hv_balloon: Replace spin_is_locked() with lockdep sgi-xp: Replace spin_is_locked() with lockdep eeprom: New ee1004 driver for DDR4 memory eeprom: at25: remove unneeded 'at25_remove' w1: IAD Register is yet readable trough iad sys file. Fix snprintf (%u for unsigned, count for max size). misc: mic: scif: remove set but not used variables 'src_dma_addr, dst_dma_addr' misc: mic: fix a DMA pool free failure platform: goldfish: pipe: Add a blank line to separate varibles and code platform: goldfish: pipe: Remove redundant casting platform: goldfish: pipe: Call misc_deregister if init fails platform: goldfish: pipe: Move the file-scope goldfish_pipe_dev variable into the driver state platform: goldfish: pipe: Move the file-scope goldfish_pipe_miscdev variable into the driver state ... |
||
|
Linus Torvalds
|
26873acacb |
Driver core patches for 4.20-rc1
Driver core patches for 4.20-rc1 Here is a small number of driver core patches for 4.20-rc1. Not much happened here this merge window, only a very tiny number of patches that do: - add BUS_ATTR_WO() for use by drivers - component error path fixes - kernfs range check fix - other tiny error path fixes and const changes All of these have been in linux-next with no reported issues for a while. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -----BEGIN PGP SIGNATURE----- iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCW9Lhtw8cZ3JlZ0Brcm9h aC5jb20ACgkQMUfUDdst+ykHTgCguaJ3SgRefuC/WijjqboTC/SikCoAnRVTUxfU v8BisSN22kR3jmxwsXud =/IvY -----END PGP SIGNATURE----- Merge tag 'driver-core-4.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core updates from Greg KH: "Here is a small number of driver core patches for 4.20-rc1. Not much happened here this merge window, only a very tiny number of patches that do: - add BUS_ATTR_WO() for use by drivers - component error path fixes - kernfs range check fix - other tiny error path fixes and const changes All of these have been in linux-next with no reported issues for a while" * tag 'driver-core-4.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: devres: provide devm_kstrdup_const() mm: move is_kernel_rodata() to asm-generic/sections.h devres: constify p in devm_kfree() driver core: add BUS_ATTR_WO() macro kernfs: Fix range checks in kernfs_get_target_path component: fix loop condition to call unbind() if bind() fails drivers/base/devtmpfs.c: don't pretend path is const in delete_path kernfs: update comment about kernfs_path() return value |
||
|
Linus Torvalds
|
9703fc8caf |
USB/PHY patches for 4.20-rc1
Here is the big USB/PHY driver patches for 4.20-rc1
Lots of USB changes in here, primarily in these areas:
- typec updates and new drivers
- new PHY drivers
- dwc2 driver updates and additions (this old core keeps getting added
to new devices.)
- usbtmc major update based on the industry group coming together and
working to add new features and performance to the driver.
- USB gadget additions for new features
- USB gadget configfs updates
- chipidea driver updates
- other USB gadget updates
- USB serial driver updates
- renesas driver updates
- xhci driver updates
- other tiny USB driver updates
All of these have been in linux-next for a while with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-4.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB/PHY updates from Greg KH:
"Here is the big USB/PHY driver patches for 4.20-rc1
Lots of USB changes in here, primarily in these areas:
- typec updates and new drivers
- new PHY drivers
- dwc2 driver updates and additions (this old core keeps getting
added to new devices.)
- usbtmc major update based on the industry group coming together and
working to add new features and performance to the driver.
- USB gadget additions for new features
- USB gadget configfs updates
- chipidea driver updates
- other USB gadget updates
- USB serial driver updates
- renesas driver updates
- xhci driver updates
- other tiny USB driver updates
All of these have been in linux-next for a while with no reported
issues"
* tag 'usb-4.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (229 commits)
usb: phy: ab8500: silence some uninitialized variable warnings
usb: xhci: tegra: Add genpd support
usb: xhci: tegra: Power-off power-domains on removal
usbip:vudc: BUG kmalloc-2048 (Not tainted): Poison overwritten
usbip: tools: fix atoi() on non-null terminated string
USB: misc: appledisplay: fix backlight update_status return code
phy: phy-pxa-usb: add a new driver
usb: host: add DT bindings for faraday fotg2
usb: host: ohci-at91: fix request of irq for optional gpio
usb/early: remove set but not used variable 'remain_length'
usb: typec: Fix copy/paste on typec_set_vconn_role() kerneldoc
usb: typec: tcpm: Report back negotiated PPS voltage and current
USB: core: remove set but not used variable 'udev'
usb: core: fix memory leak on port_dev_path allocation
USB: net2280: Remove ->disconnect() callback from net2280_pullup()
usb: dwc2: disable power_down on rockchip devices
usb: gadget: udc: renesas_usb3: add support for r8a77990
dt-bindings: usb: renesas_usb3: add bindings for r8a77990
usb: gadget: udc: renesas_usb3: Add r8a774a1 support
USB: serial: cypress_m8: remove set but not used variable 'iflag'
...
|
||
|
Linus Torvalds
|
da19a102ce |
First merge window pull request
This has been a smaller cycle with many of the commits being smallish code
fixes and improvements across the drivers.
- Driver updates for bnxt_re, cxgb4, hfi1, hns, mlx5, nes, qedr, and rxe
- Memory window support in hns
- mlx5 user API 'flow mutate/steering' allows accessing the full packet
mangling and matching machinery from user space
- Support inter-working with verbs API calls in the 'devx' mlx5 user API, and
provide options to use devx with less privilege
- Modernize the use of syfs and the device interface to use attribute groups
and cdev properly for uverbs, and clean up some of the core code's device list
management
- More progress on net namespaces for RDMA devices
- Consolidate driver BAR mmapping support into core code helpers and rework
how RDMA holds poitners to mm_struct for get_user_pages cases
- First pass to use 'dev_name' instead of ib_device->name
- Device renaming for RDMA devices
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
Pull rdma updates from Jason Gunthorpe:
"This has been a smaller cycle with many of the commits being smallish
code fixes and improvements across the drivers.
- Driver updates for bnxt_re, cxgb4, hfi1, hns, mlx5, nes, qedr, and
rxe
- Memory window support in hns
- mlx5 user API 'flow mutate/steering' allows accessing the full
packet mangling and matching machinery from user space
- Support inter-working with verbs API calls in the 'devx' mlx5 user
API, and provide options to use devx with less privilege
- Modernize the use of syfs and the device interface to use attribute
groups and cdev properly for uverbs, and clean up some of the core
code's device list management
- More progress on net namespaces for RDMA devices
- Consolidate driver BAR mmapping support into core code helpers and
rework how RDMA holds poitners to mm_struct for get_user_pages
cases
- First pass to use 'dev_name' instead of ib_device->name
- Device renaming for RDMA devices"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (242 commits)
IB/mlx5: Add support for extended atomic operations
RDMA/core: Fix comment for hw stats init for port == 0
RDMA/core: Refactor ib_register_device() function
RDMA/core: Fix unwinding flow in case of error to register device
ib_srp: Remove WARN_ON in srp_terminate_io()
IB/mlx5: Allow scatter to CQE without global signaled WRs
IB/mlx5: Verify that driver supports user flags
IB/mlx5: Support scatter to CQE for DC transport type
RDMA/drivers: Use core provided API for registering device attributes
RDMA/core: Allow existing drivers to set one sysfs group per device
IB/rxe: Remove unnecessary enum values
RDMA/umad: Use kernel API to allocate umad indexes
RDMA/uverbs: Use kernel API to allocate uverbs indexes
RDMA/core: Increase total number of RDMA ports across all devices
IB/mlx4: Add port and TID to MAD debug print
IB/mlx4: Enable debug print of SMPs
RDMA/core: Rename ports_parent to ports_kobj
RDMA/core: Do not expose unsupported counters
IB/mlx4: Refer to the device kobject instead of ports_parent
RDMA/nldev: Allow IB device rename through RDMA netlink
...
|
||
Diego Viola
|
a435ab4f80 |
libata: Apply NOLPM quirk for SAMSUNG MZ7TD256HAFV-000L9
med_power_with_dipm causes my T450 to freeze with a SAMSUNG MZ7TD256HAFV-000L9 SSD (firmware DXT02L5Q). Switching the LPM to max_performance fixes this issue. Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Diego Viola <diego.viola@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk> |
||
Stephen Warren
|
d061864b89 |
ARM: dt: relicense two DT binding IRQ headers
Files in include/dt-bindings/ may be useful to any OS that uses DT, when building the OS binary itself, not just when building DTB files. Since some OSs are not GPL, they need non-GPL headers. This change relicenses two of the useful files so that they can be used under the MIT license when desired. I wrote these files and NVIDIA legal has approved this change. Geert also ack'd the change; he fixed some spelling issues in the comments. Cc: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Rob Herring <robh@kernel.org> |
||
Michael Ellerman
|
58cfbac25b |
Revert "selftests/powerpc: Fix out-of-tree build errors"
This reverts commit
|
||
Helge Deller
|
87613bb9d2 |
parisc: Use LINUX_GATEWAY_SPACE constant in entry.S
Use and mention the predefined LINUX_GATEWAY_SPACE constant in the various important code sections which deal with the gateway page. Signed-off-by: Helge Deller <deller@gmx.de> |
||
Arnd Bergmann
|
9a298b4455 |
parisc64: change __kernel_suseconds_t to match glibc
There are only two 64-bit architecture ports that have a 32-bit suseconds_t: sparc64 and parisc64. I've encountered a number of problems with this, while trying to get a proper 64-bit time_t working on 32-bit architectures. Having a 32-bit suseconds_t combined with a 64-bit time_t means that we get extra padding in data structures that may leak kernel stack data to user space, and it breaks all code that assumes that timespec and timeval have the same layout. While we can't change sparc64, it seems that glibc on parisc64 has always set suseconds_t to 'long', and the current version would give incorrect results for gettimeofday() and many other interfaces: timestamps passed from user space into the kernel result in tv_usec being always zero (the lower bits contain the intended value but are ignored) while data passed from the kernel to user space contains either zeroes or random data in tv_usec. Based on that, it seems best to change the user API in the kernel in an incompatible way to match what glibc expects. Note that the distros I could find (gentoo and debian) all just have 32-bit user space, which does not suffer from this problem. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Helge Deller <deller@gmx.de> |
||
|
Linus Torvalds
|
e5f6d9afa3 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
Pull sparc fix from David Miller: "Build regression fix" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc: sparc: Fix VDSO build with older binutils. |
||
|
Linus Torvalds
|
c300af2857 |
RISC-V Patches for the 4.20 Merge Window, Part 1
This patch set contains a lot (at least, for me) of improvements to the
RISC-V kernel port:
* The removal of some cacheinfo values that were bogus.
* On systems with F but without D the kernel will not show the F
extension to userspace, as it isn't actually supported.
* Support for futexes.
* Removal of some unused code.
* Cleanup of some menuconfig entries.
* Support for systems without a floating-point unit, and for building
kernels that will never use the floating-point unit.
* More fixes to the RV32I port, which regressed again. It's really time
to get this into a regression test somewhere so I stop breaking it.
Thanks to Zong for resurrecting it again!
* Various fixes that resulted from a year old review of our original
patch set that I finally got around to.
* Various improvements to SMP support, largely based around having
switched to logical hart numbering, as well as some interrupt
improvements. This one is in the same patch set as above, thanks to
Atish for sheparding everything though as my patch set was a bit of a
mess.
I'm pretty sure this is our largest patch set since the original kernel
contribution, and it's certainly the one with the most contributors.
While I don't have anything else I know I'm going to submit for the
merge window, I would be somewhat surprised if I didn't screw anything
up.
Thanks for the help, everyone!
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Merge tag 'riscv-for-linus-4.20-mw0' of git://git.kernel.org/pub/scm/linux/kernel/git/palmer/riscv-linux
Pull RISC-V updates from Palmer Dabbelt:
"This patch set contains a lot (at least, for me) of improvements to
the RISC-V kernel port:
- The removal of some cacheinfo values that were bogus.
- On systems with F but without D the kernel will not show the F
extension to userspace, as it isn't actually supported.
- Support for futexes.
- Removal of some unused code.
- Cleanup of some menuconfig entries.
- Support for systems without a floating-point unit, and for building
kernels that will never use the floating-point unit.
- More fixes to the RV32I port, which regressed again. It's really
time to get this into a regression test somewhere so I stop
breaking it. Thanks to Zong for resurrecting it again!
- Various fixes that resulted from a year old review of our original
patch set that I finally got around to.
- Various improvements to SMP support, largely based around having
switched to logical hart numbering, as well as some interrupt
improvements. This one is in the same patch set as above, thanks to
Atish for sheparding everything though as my patch set was a bit of
a mess.
I'm pretty sure this is our largest patch set since the original
kernel contribution, and it's certainly the one with the most
contributors. While I don't have anything else I know I'm going to
submit for the merge window, I would be somewhat surprised if I didn't
screw anything up.
Thanks for the help, everyone!"
* tag 'riscv-for-linus-4.20-mw0' of git://git.kernel.org/pub/scm/linux/kernel/git/palmer/riscv-linux: (31 commits)
RISC-V: Cosmetic menuconfig changes
riscv: move GCC version check for ARCH_SUPPORTS_INT128 to Kconfig
RISC-V: remove the unused return_to_handler export
RISC-V: Add futex support.
RISC-V: Add FP register ptrace support for gdb.
RISC-V: Mask out the F extension on systems without D
RISC-V: Don't set cacheinfo.{physical_line_partition,attributes}
RISC-V: Show IPI stats
RISC-V: Show CPU ID and Hart ID separately in /proc/cpuinfo
RISC-V: Use Linux logical CPU number instead of hartid
RISC-V: Add logical CPU indexing for RISC-V
RISC-V: Use WRITE_ONCE instead of direct access
RISC-V: Use mmgrab()
RISC-V: Rename im_okay_therefore_i_am to found_boot_cpu
RISC-V: Rename riscv_of_processor_hart to riscv_of_processor_hartid
RISC-V: Provide a cleaner raw_smp_processor_id()
RISC-V: Disable preemption before enabling interrupts
RISC-V: Comment on the TLB flush in smp_callin()
RISC-V: Filter ISA and MMU values in cpuinfo
RISC-V: Don't set cacheinfo.{physical_line_partition,attributes}
...
|
||
|
Linus Torvalds
|
0d1e8b8d2b |
KVM updates for v4.20
ARM:
- Improved guest IPA space support (32 to 52 bits)
- RAS event delivery for 32bit
- PMU fixes
- Guest entry hardening
- Various cleanups
- Port of dirty_log_test selftest
PPC:
- Nested HV KVM support for radix guests on POWER9. The performance is
much better than with PR KVM. Migration and arbitrary level of
nesting is supported.
- Disable nested HV-KVM on early POWER9 chips that need a particular hardware
bug workaround
- One VM per core mode to prevent potential data leaks
- PCI pass-through optimization
- merge ppc-kvm topic branch and kvm-ppc-fixes to get a better base
s390:
- Initial version of AP crypto virtualization via vfio-mdev
- Improvement for vfio-ap
- Set the host program identifier
- Optimize page table locking
x86:
- Enable nested virtualization by default
- Implement Hyper-V IPI hypercalls
- Improve #PF and #DB handling
- Allow guests to use Enlightened VMCS
- Add migration selftests for VMCS and Enlightened VMCS
- Allow coalesced PIO accesses
- Add an option to perform nested VMCS host state consistency check
through hardware
- Automatic tuning of lapic_timer_advance_ns
- Many fixes, minor improvements, and cleanups
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Merge tag 'kvm-4.20-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM updates from Radim Krčmář:
"ARM:
- Improved guest IPA space support (32 to 52 bits)
- RAS event delivery for 32bit
- PMU fixes
- Guest entry hardening
- Various cleanups
- Port of dirty_log_test selftest
PPC:
- Nested HV KVM support for radix guests on POWER9. The performance
is much better than with PR KVM. Migration and arbitrary level of
nesting is supported.
- Disable nested HV-KVM on early POWER9 chips that need a particular
hardware bug workaround
- One VM per core mode to prevent potential data leaks
- PCI pass-through optimization
- merge ppc-kvm topic branch and kvm-ppc-fixes to get a better base
s390:
- Initial version of AP crypto virtualization via vfio-mdev
- Improvement for vfio-ap
- Set the host program identifier
- Optimize page table locking
x86:
- Enable nested virtualization by default
- Implement Hyper-V IPI hypercalls
- Improve #PF and #DB handling
- Allow guests to use Enlightened VMCS
- Add migration selftests for VMCS and Enlightened VMCS
- Allow coalesced PIO accesses
- Add an option to perform nested VMCS host state consistency check
through hardware
- Automatic tuning of lapic_timer_advance_ns
- Many fixes, minor improvements, and cleanups"
* tag 'kvm-4.20-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (204 commits)
KVM/nVMX: Do not validate that posted_intr_desc_addr is page aligned
Revert "kvm: x86: optimize dr6 restore"
KVM: PPC: Optimize clearing TCEs for sparse tables
x86/kvm/nVMX: tweak shadow fields
selftests/kvm: add missing executables to .gitignore
KVM: arm64: Safety check PSTATE when entering guest and handle IL
KVM: PPC: Book3S HV: Don't use streamlined entry path on early POWER9 chips
arm/arm64: KVM: Enable 32 bits kvm vcpu events support
arm/arm64: KVM: Rename function kvm_arch_dev_ioctl_check_extension()
KVM: arm64: Fix caching of host MDCR_EL2 value
KVM: VMX: enable nested virtualization by default
KVM/x86: Use 32bit xor to clear registers in svm.c
kvm: x86: Introduce KVM_CAP_EXCEPTION_PAYLOAD
kvm: vmx: Defer setting of DR6 until #DB delivery
kvm: x86: Defer setting of CR2 until #PF delivery
kvm: x86: Add payload operands to kvm_multiple_exception
kvm: x86: Add exception payload fields to kvm_vcpu_events
kvm: x86: Add has_payload and payload to kvm_queued_exception
KVM: Documentation: Fix omission in struct kvm_vcpu_events
KVM: selftests: add Enlightened VMCS test
...
|
||
|
Linus Torvalds
|
83c4087ce4 |
Merge branch 'for-4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
Pull cgroup updates from Tejun Heo: "All trivial changes - simplification, typo fix and adding cond_resched() in a netclassid update loop" * 'for-4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: cgroup, netclassid: add a preemption point to write_classid rdmacg: fix a typo in rdmacg documentation cgroup: Simplify cgroup_ancestor |
||
|
Linus Torvalds
|
a67eefad99 |
Printk changes for 4.20
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||
|
Daniel Borkmann
|
ede95a63b5 |
bpf: add bpf_jit_limit knob to restrict unpriv allocations
Rick reported that the BPF JIT could potentially fill the entire module space with BPF programs from unprivileged users which would prevent later attempts to load normal kernel modules or privileged BPF programs, for example. If JIT was enabled but unsuccessful to generate the image, then before commit |