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  1. 10 3月, 2018 11 次提交
    • L
      lib/test_kmod.c: fix limit check on number of test devices created · ac68b1b3
      由 Luis R. Rodriguez 提交于 
      As reported by Dan the parentheses is in the wrong place, and since
unlikely() call returns either 0 or 1 it's never less than zero.  The
second issue is that signed integer overflows like "INT_MAX + 1" are
undefined behavior.

Since num_test_devs represents the number of devices, we want to stop
prior to hitting the max, and not rely on the wrap arround at all.  So
just cap at num_test_devs + 1, prior to assigning a new device.

Link: http://lkml.kernel.org/r/20180224030046.24238-1-mcgrof@kernel.org
Fixes: d9c6a72d ("kmod: add test driver to stress test the module loader")
Reported-by: NDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NLuis R. Rodriguez <mcgrof@kernel.org>
Acked-by: NKees Cook <keescook@chromium.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      ac68b1b3
    • L
      selftests/vm/run_vmtests: adjust hugetlb size according to nr_cpus · 0627be7d
      由 Li Zhijian 提交于 
      Fix userfaultfd_hugetlb on hosts which have more than 64 cpus.

  ---------------------------
  running userfaultfd_hugetlb
  ---------------------------
  invalid MiB
  Usage: <MiB> <bounces>
  [FAIL]

Via userfaultfd.c we can know, hugetlb_size needs to meet hugetlb_size
>= nr_cpus * hugepage_size.  hugepage_size is often 2M, so when host
cpus > 64, it requires more than 128M.

[zhijianx.li@intel.com: update changelog/comments and variable name]
 Link: http://lkml.kernel.org/r/20180302024356.83359-1-zhijianx.li@intel.com
 Link: http://lkml.kernel.org/r/20180303125027.81638-1-zhijianx.li@intel.com
Link: http://lkml.kernel.org/r/20180302024356.83359-1-zhijianx.li@intel.comSigned-off-by: NLi Zhijian <zhijianx.li@intel.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: SeongJae Park <sj38.park@gmail.com>
Cc: Philippe Ombredanne <pombredanne@nexb.com>
Cc: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      0627be7d
    • D
      mm/page_alloc: fix memmap_init_zone pageblock alignment · 864b75f9
      由 Daniel Vacek 提交于 
      Commit b92df1de ("mm: page_alloc: skip over regions of invalid pfns
where possible") introduced a bug where move_freepages() triggers a
VM_BUG_ON() on uninitialized page structure due to pageblock alignment.
To fix this, simply align the skipped pfns in memmap_init_zone() the
same way as in move_freepages_block().

Seen in one of the RHEL reports:

  crash> log | grep -e BUG -e RIP -e Call.Trace -e move_freepages_block -e rmqueue -e freelist -A1
  kernel BUG at mm/page_alloc.c:1389!
  invalid opcode: 0000 [#1] SMP
  --
  RIP: 0010:[<ffffffff8118833e>]  [<ffffffff8118833e>] move_freepages+0x15e/0x160
  RSP: 0018:ffff88054d727688  EFLAGS: 00010087
  --
  Call Trace:
   [<ffffffff811883b3>] move_freepages_block+0x73/0x80
   [<ffffffff81189e63>] __rmqueue+0x263/0x460
   [<ffffffff8118c781>] get_page_from_freelist+0x7e1/0x9e0
   [<ffffffff8118caf6>] __alloc_pages_nodemask+0x176/0x420
  --
  RIP  [<ffffffff8118833e>] move_freepages+0x15e/0x160
   RSP <ffff88054d727688>

  crash> page_init_bug -v | grep RAM
  <struct resource 0xffff88067fffd2f8>          1000 -        9bfff	System RAM (620.00 KiB)
  <struct resource 0xffff88067fffd3a0>        100000 -     430bffff	System RAM (  1.05 GiB = 1071.75 MiB = 1097472.00 KiB)
  <struct resource 0xffff88067fffd410>      4b0c8000 -     4bf9cfff	System RAM ( 14.83 MiB = 15188.00 KiB)
  <struct resource 0xffff88067fffd480>      4bfac000 -     646b1fff	System RAM (391.02 MiB = 400408.00 KiB)
  <struct resource 0xffff88067fffd560>      7b788000 -     7b7fffff	System RAM (480.00 KiB)
  <struct resource 0xffff88067fffd640>     100000000 -    67fffffff	System RAM ( 22.00 GiB)

  crash> page_init_bug | head -6
  <struct resource 0xffff88067fffd560>      7b788000 -     7b7fffff	System RAM (480.00 KiB)
  <struct page 0xffffea0001ede200>   1fffff00000000  0 <struct pglist_data 0xffff88047ffd9000> 1 <struct zone 0xffff88047ffd9800> DMA32          4096    1048575
  <struct page 0xffffea0001ede200> 505736 505344 <struct page 0xffffea0001ed8000> 505855 <struct page 0xffffea0001edffc0>
  <struct page 0xffffea0001ed8000>                0  0 <struct pglist_data 0xffff88047ffd9000> 0 <struct zone 0xffff88047ffd9000> DMA               1       4095
  <struct page 0xffffea0001edffc0>   1fffff00000400  0 <struct pglist_data 0xffff88047ffd9000> 1 <struct zone 0xffff88047ffd9800> DMA32          4096    1048575
  BUG, zones differ!

Note that this range follows two not populated sections
68000000-77ffffff in this zone.  7b788000-7b7fffff is the first one
after a gap.  This makes memmap_init_zone() skip all the pfns up to the
beginning of this range.  But this range is not pageblock (2M) aligned.
In fact no range has to be.

  crash> kmem -p 77fff000 78000000 7b5ff000 7b600000 7b787000 7b788000
        PAGE        PHYSICAL      MAPPING       INDEX CNT FLAGS
  ffffea0001e00000  78000000                0        0  0 0
  ffffea0001ed7fc0  7b5ff000                0        0  0 0
  ffffea0001ed8000  7b600000                0        0  0 0	<<<<
  ffffea0001ede1c0  7b787000                0        0  0 0
  ffffea0001ede200  7b788000                0        0  1 1fffff00000000

Top part of page flags should contain nodeid and zonenr, which is not
the case for page ffffea0001ed8000 here (<<<<).

  crash> log | grep -o fffea0001ed[^\ ]* | sort -u
  fffea0001ed8000
  fffea0001eded20
  fffea0001edffc0

  crash> bt -r | grep -o fffea0001ed[^\ ]* | sort -u
  fffea0001ed8000
  fffea0001eded00
  fffea0001eded20
  fffea0001edffc0

Initialization of the whole beginning of the section is skipped up to
the start of the range due to the commit b92df1de.  Now any code
calling move_freepages_block() (like reusing the page from a freelist as
in this example) with a page from the beginning of the range will get
the page rounded down to start_page ffffea0001ed8000 and passed to
move_freepages() which crashes on assertion getting wrong zonenr.

  >         VM_BUG_ON(page_zone(start_page) != page_zone(end_page));

Note, page_zone() derives the zone from page flags here.

From similar machine before commit b92df1de:

  crash> kmem -p 77fff000 78000000 7b5ff000 7b600000 7b7fe000 7b7ff000
        PAGE        PHYSICAL      MAPPING       INDEX CNT FLAGS
  fffff73941e00000  78000000                0        0  1 1fffff00000000
  fffff73941ed7fc0  7b5ff000                0        0  1 1fffff00000000
  fffff73941ed8000  7b600000                0        0  1 1fffff00000000
  fffff73941edff80  7b7fe000                0        0  1 1fffff00000000
  fffff73941edffc0  7b7ff000 ffff8e67e04d3ae0     ad84  1 1fffff00020068 uptodate,lru,active,mappedtodisk

All the pages since the beginning of the section are initialized.
move_freepages()' not gonna blow up.

The same machine with this fix applied:

  crash> kmem -p 77fff000 78000000 7b5ff000 7b600000 7b7fe000 7b7ff000
        PAGE        PHYSICAL      MAPPING       INDEX CNT FLAGS
  ffffea0001e00000  78000000                0        0  0 0
  ffffea0001e00000  7b5ff000                0        0  0 0
  ffffea0001ed8000  7b600000                0        0  1 1fffff00000000
  ffffea0001edff80  7b7fe000                0        0  1 1fffff00000000
  ffffea0001edffc0  7b7ff000 ffff88017fb13720        8  2 1fffff00020068 uptodate,lru,active,mappedtodisk

At least the bare minimum of pages is initialized preventing the crash
as well.

Customers started to report this as soon as 7.4 (where b92df1de was
merged in RHEL) was released.  I remember reports from
September/October-ish times.  It's not easily reproduced and happens on
a handful of machines only.  I guess that's why.  But that does not make
it less serious, I think.

Though there actually is a report here:
  https://bugzilla.kernel.org/show_bug.cgi?id=196443

And there are reports for Fedora from July:
  https://bugzilla.redhat.com/show_bug.cgi?id=1473242
and CentOS:
  https://bugs.centos.org/view.php?id=13964
and we internally track several dozens reports for RHEL bug
  https://bugzilla.redhat.com/show_bug.cgi?id=1525121

Link: http://lkml.kernel.org/r/0485727b2e82da7efbce5f6ba42524b429d0391a.1520011945.git.neelx@redhat.com
Fixes: b92df1de ("mm: page_alloc: skip over regions of invalid pfns where possible")
Signed-off-by: NDaniel Vacek <neelx@redhat.com>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Paul Burton <paul.burton@imgtec.com>
Cc: Pavel Tatashin <pasha.tatashin@oracle.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: <stable@vger.kernel.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      864b75f9
    • D
      mm/memblock.c: hardcode the end_pfn being -1 · 379b03b7
      由 Daniel Vacek 提交于 
      This is just a cleanup.  It aids handling the special end case in the
next commit.

[akpm@linux-foundation.org: make it work against current -linus, not against -mm]
[akpm@linux-foundation.org: make it work against current -linus, not against -mm some more]
Link: http://lkml.kernel.org/r/1ca478d4269125a99bcfb1ca04d7b88ac1aee924.1520011944.git.neelx@redhat.comSigned-off-by: NDaniel Vacek <neelx@redhat.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Pavel Tatashin <pasha.tatashin@oracle.com>
Cc: Paul Burton <paul.burton@imgtec.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      379b03b7
    • A
      mm/gup.c: teach get_user_pages_unlocked to handle FOLL_NOWAIT · 96312e61
      由 Andrea Arcangeli 提交于 
      KVM is hanging during postcopy live migration with userfaultfd because
get_user_pages_unlocked is not capable to handle FOLL_NOWAIT.

Earlier FOLL_NOWAIT was only ever passed to get_user_pages.

Specifically faultin_page (the callee of get_user_pages_unlocked caller)
doesn't know that if FAULT_FLAG_RETRY_NOWAIT was set in the page fault
flags, when VM_FAULT_RETRY is returned, the mmap_sem wasn't actually
released (even if nonblocking is not NULL).  So it sets *nonblocking to
zero and the caller won't release the mmap_sem thinking it was already
released, but it wasn't because of FOLL_NOWAIT.

Link: http://lkml.kernel.org/r/20180302174343.5421-2-aarcange@redhat.com
Fixes: ce53053c ("kvm: switch get_user_page_nowait() to get_user_pages_unlocked()")
Signed-off-by: NAndrea Arcangeli <aarcange@redhat.com>
Reported-by: NDr. David Alan Gilbert <dgilbert@redhat.com>
Tested-by: NDr. David Alan Gilbert <dgilbert@redhat.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      96312e61
    • K
      lib/bug.c: exclude non-BUG/WARN exceptions from report_bug() · 1b4cfe3c
      由 Kees Cook 提交于 
      Commit b8347c21 ("x86/debug: Handle warnings before the notifier
chain, to fix KGDB crash") changed the ordering of fixups, and did not
take into account the case of x86 processing non-WARN() and non-BUG()
exceptions.  This would lead to output of a false BUG line with no other
information.

In the case of a refcount exception, it would be immediately followed by
the refcount WARN(), producing very strange double-"cut here":

  lkdtm: attempting bad refcount_inc() overflow
  ------------[ cut here ]------------
  Kernel BUG at 0000000065f29de5 [verbose debug info unavailable]
  ------------[ cut here ]------------
  refcount_t overflow at lkdtm_REFCOUNT_INC_OVERFLOW+0x6b/0x90 in cat[3065], uid/euid: 0/0
  WARNING: CPU: 0 PID: 3065 at kernel/panic.c:657 refcount_error_report+0x9a/0xa4
  ...

In the prior ordering, exceptions were searched first:

   do_trap_no_signal(struct task_struct *tsk, int trapnr, char *str,
   ...
                if (fixup_exception(regs, trapnr))
                        return 0;

  -               if (fixup_bug(regs, trapnr))
  -                       return 0;
  -

As a result, fixup_bugs()'s is_valid_bugaddr() didn't take into account
needing to search the exception list first, since that had already
happened.

So, instead of searching the exception list twice (once in
is_valid_bugaddr() and then again in fixup_exception()), just add a
simple sanity check to report_bug() that will immediately bail out if a
BUG() (or WARN()) entry is not found.

Link: http://lkml.kernel.org/r/20180301225934.GA34350@beast
Fixes: b8347c21 ("x86/debug: Handle warnings before the notifier chain, to fix KGDB crash")
Signed-off-by: NKees Cook <keescook@chromium.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Richard Weinberger <richard.weinberger@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      1b4cfe3c
    • K
      bug: use %pB in BUG and stack protector failure · 0862ca42
      由 Kees Cook 提交于 
      The BUG and stack protector reports were still using a raw %p.  This
changes it to %pB for more meaningful output.

Link: http://lkml.kernel.org/r/20180301225704.GA34198@beast
Fixes: ad67b74d ("printk: hash addresses printed with %p")
Signed-off-by: NKees Cook <keescook@chromium.org>
Reviewed-by: NAndrew Morton <akpm@linux-foundation.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Richard Weinberger <richard.weinberger@gmail.com>,
Cc: <stable@vger.kernel.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      0862ca42
    • M
      hugetlb: fix surplus pages accounting · 4704dea3
      由 Michal Hocko 提交于 
      Dan Rue has noticed that libhugetlbfs test suite fails counter test:

  # mount_point="/mnt/hugetlb/"
  # echo 200 > /proc/sys/vm/nr_hugepages
  # mkdir -p "${mount_point}"
  # mount -t hugetlbfs hugetlbfs "${mount_point}"
  # export LD_LIBRARY_PATH=/root/libhugetlbfs/libhugetlbfs-2.20/obj64
  # /root/libhugetlbfs/libhugetlbfs-2.20/tests/obj64/counters
  Starting testcase "/root/libhugetlbfs/libhugetlbfs-2.20/tests/obj64/counters", pid 3319
  Base pool size: 0
  Clean...
  FAIL    Line 326: Bad HugePages_Total: expected 0, actual 1

The bug was bisected to 0c397dae ("mm, hugetlb: further simplify
hugetlb allocation API").

The reason is that alloc_surplus_huge_page() misaccounts per node
surplus pages.  We should increase surplus_huge_pages_node rather than
nr_huge_pages_node which is already handled by alloc_fresh_huge_page.

Link: http://lkml.kernel.org/r/20180221191439.GM2231@dhcp22.suse.cz
Fixes: 0c397dae ("mm, hugetlb: further simplify hugetlb allocation API")
Signed-off-by: NMichal Hocko <mhocko@suse.com>
Reported-by: NDan Rue <dan.rue@linaro.org>
Tested-by: NDan Rue <dan.rue@linaro.org>
Reviewed-by: NMike Kravetz <mike.kravetz@oracle.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      4704dea3
    • L
      Merge branch 'overlayfs-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs · 719ea861
      由 Linus Torvalds 提交于 
      Pull overlayfs fixes from Miklos Szeredi:
 "This fixes a corner case for NFS exporting (introduced in this cycle)
  as well as fixing miscellaneous bugs"

* 'overlayfs-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs:
  ovl: update Kconfig texts
  ovl: redirect_dir=nofollow should not follow redirect for opaque lower
  ovl: fix ptr_ret.cocci warnings
  ovl: check ERR_PTR() return value from ovl_lookup_real()
  ovl: check lower ancestry on encode of lower dir file handle
  ovl: hash non-dir by lower inode for fsnotify
      719ea861
    • L
      Merge tag 'xfs-4.16-fixes-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux · 2d9b1d69
      由 Linus Torvalds 提交于 
      Pull xfs fixes from Darrick Wong:

 - Fix some iomap locking problems

 - Don't allocate cow blocks when we're zeroing file data

* tag 'xfs-4.16-fixes-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
  xfs: don't block on the ilock for RWF_NOWAIT
  xfs: don't start out with the exclusive ilock for direct I/O
  xfs: don't allocate COW blocks for zeroing holes or unwritten extents
      2d9b1d69
    • L
      Merge tag 'powerpc-4.16-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux · a525df05
      由 Linus Torvalds 提交于 
      Pull powerpc fixes from Michael Ellerman:
 "One notable fix to properly advertise our support for a new firmware
  feature, caused by two series conflicting semantically but not
  textually.

  There's a new ioctl for the new ocxl driver, which is not a fix, but
  needed to complete the userspace API and good to have before the
  driver is in a released kernel.

  Finally three minor selftest fixes, and a fix for intermittent build
  failures for some obscure platforms, caused by a missing make
  dependency.

  Thanks to: Alastair D'Silva, Bharata B Rao, Guenter Roeck"

* tag 'powerpc-4.16-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc/pseries: Fix vector5 in ibm architecture vector table
  ocxl: Document the OCXL_IOCTL_GET_METADATA IOCTL
  ocxl: Add get_metadata IOCTL to share OCXL information to userspace
  selftests/powerpc: Skip the subpage_prot tests if the syscall is unavailable
  selftests/powerpc: Fix missing clean of pmu/lib.o
  powerpc/boot: Fix random libfdt related build errors
  selftests/powerpc: Skip tm-trap if transactional memory is not enabled
      a525df05
  3. 09 3月, 2018 2 次提交
  5. 08 3月, 2018 9 次提交
    • D
      Revert "platform/chrome: chromeos_laptop: make chromeos_laptop const" · fc88bbda
      由 Dmitry Torokhov 提交于 
      This reverts commit a376cd91 because
chromeos_laptop instances should not be marked as "const" (at this
time), since i2c_peripheral is being modified (we change "state" and
"tries") when we instantiate devices.
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: NBenson Leung <bleung@chromium.org>
      fc88bbda
    • L
      Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost · 1b88accf
      由 Linus Torvalds 提交于 
      Pull virtio bugfix from Michael Tsirkin:
 "A bugfix for error handling in virtio"

* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
  virtio_ring: fix num_free handling in error case
      1b88accf
    • L
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input · 851710a8
      由 Linus Torvalds 提交于 
      Pull input fixes from Dmitry Torokhov:

 - we are reverting patch that was switched touchpad on Lenovo T460P
   over to native RMI because on these boxes BIOS messes up with SMBus
   controller state. We might re-enable it later once SMBus issue is
   resolved

 - disabling interrupts in matrix_keypad driver was racy

 - mms114 now has SPDX header and matching MODULE_LICENSE

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Revert "Input: synaptics - Lenovo Thinkpad T460p devices should use RMI"
  Input: matrix_keypad - fix race when disabling interrupts
  Input: mms114 - add SPDX identifier
  Input: mms114 - fix license module information
      851710a8
    • A
      Revert "Input: synaptics - Lenovo Thinkpad T460p devices should use RMI" · 5444a992
      由 Arkadiusz Hiler 提交于 
      This reverts commit 48282969 which
caused the following issues:

1. On T460p with BIOS version 2.22 touchpad and trackpoint stop working
after suspend-resume cycle. Due to strange state of the device another
suspend is impossible.

The following dmesg errors can be observed:
thinkpad_acpi: EC reports that Thermal Table has changed
rmi4_smbus 7-002c: failed to get SMBus version number!
rmi4_physical rmi4-00: rmi_driver_reset_handler: Failed to read current IRQ mask.
rmi4_f01 rmi4-00.fn01: Failed to restore normal operation: -16.
rmi4_f01 rmi4-00.fn01: Resume failed with code -16.
rmi4_physical rmi4-00: Failed to suspend functions: -16
rmi4_smbus 7-002c: Failed to resume device: -16
PM: resume devices took 0.640 seconds
rmi4_f03 rmi4-00.fn03: rmi_f03_pt_write: Failed to write to F03 TX register (-16).
rmi4_physical rmi4-00: rmi_driver_clear_irq_bits: Failed to change enabled interrupts!
rmi4_physical rmi4-00: rmi_driver_set_irq_bits: Failed to change enabled interrupts!
psmouse: probe of serio3 failed with error -1

2. On another T460p with BIOS version 2.15 two finger scrolling gesture
on the touchpad stops working after suspend-resume cycle (about 75%
reproducibility, when it still works, the scrolling gesture becomes
laggy). Nothing suspicious appears in the dmesg.

Analysis form Richard Schütz:

"RMI is unreliable on the ThinkPad T460p because the device is affected
by the firmware behavior addressed in a7ae8195 ("i2c: i801: Allow
ACPI SystemIO OpRegion to conflict with PCI BAR")."

The affected devices often show:

i801_smbus 0000:00:1f.4: BIOS is accessing SMBus registers
i801_smbus 0000:00:1f.4: Driver SMBus register access inhibited
Reported-by: NRichard Schütz <rschuetz@uni-koblenz.de>
Signed-off-by: NArkadiusz Hiler <arkadiusz.hiler@intel.com>
Tested-by: NMartin Peres <martin.peres@linux.intel.com>
Tested-by: NArkadiusz Hiler <arkadiusz.hiler@intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>
      5444a992
    • L
      Merge tag 'gfs2-4.16.rc4.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2 · ea9b5ee3
      由 Linus Torvalds 提交于 
      Pull gfs2 fix from Bob Peterson:
 "An additional patch from Andreas Gruenbacher that fixes another
  unfortunate GFS2 regression"

* tag 'gfs2-4.16.rc4.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2:
  gfs2: Fixes to "Implement iomap for block_map" (2)
      ea9b5ee3
    • L
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux · 69f39c57
      由 Linus Torvalds 提交于 
      Pull s390 fixes from Martin Schwidefsky:
 "Nine bug fixes for s390:

   - Three fixes for the expoline code, one of them is strictly speaking
     a cleanup but as it relates to code added with 4.16 I would like to
     include the patch.

   - Three timer related fixes in the common I/O layer

   - A fix for the handling of internal DASD request which could cause
     panics.

   - One correction in regard to the accounting of pud page tables vs.
     compat tasks.

   - The register scrubbing in entry.S caused spurious crashes, this is
     fixed now as well"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/entry.S: fix spurious zeroing of r0
  s390: Fix runtime warning about negative pgtables_bytes
  s390: do not bypass BPENTER for interrupt system calls
  s390/cio: clear timer when terminating driver I/O
  s390/cio: fix return code after missing interrupt
  s390/cio: fix ccw_device_start_timeout API
  s390/clean-up: use CFI_* macros in entry.S
  s390: Replace IS_ENABLED(EXPOLINE_*) with IS_ENABLED(CONFIG_EXPOLINE_*)
  s390/dasd: fix handling of internal requests
      69f39c57
    • L
      Merge tag 'regulator-fix-v4.16-rc4' of... · b910a918
      由 Linus Torvalds 提交于 
      Merge tag 'regulator-fix-v4.16-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator

Pull regulator fixes from Mark Brown:
 "A couple of fixes here:

   - another half of the supend to idle fix from Geert that went in
     earlier, both he and I are confused as to why he didn't notice that
     this was missing when his earlier fix was merged.

   - a simple fix for a test done the wrong way round in the
     stm32-vrefbuf driver"

* tag 'regulator-fix-v4.16-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
  regulator: Fix resume from suspend to idle
  regulator: stm32-vrefbuf: fix check on ready flag
      b910a918
    • L
      Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi · be75b1b8
      由 Linus Torvalds 提交于 
      Pull SCSI fixes from James Bottomley:
 "This is mostly fixes for driver specific issues (nine of them) and the
  storvsc performance improvement with interrupt handling which was
  dropped from the previous fixes pull request.

  We also have two regressions: one is a double call_rcu() in ATA error
  handling and the other is a missed conversion to BLK_STS_OK in
  __scsi_error_from_host_byte()"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: qedi: Fix kernel crash during port toggle
  scsi: qla2xxx: Fix FC-NVMe LUN discovery
  scsi: core: return BLK_STS_OK for DID_OK in __scsi_error_from_host_byte()
  scsi: core: Avoid that ATA error handling can trigger a kernel hang or oops
  scsi: qla2xxx: ensure async flags are reset correctly
  scsi: qla2xxx: do not check login_state if no loop id is assigned
  scsi: qla2xxx: Fixup locking for session deletion
  scsi: qla2xxx: Fix NULL pointer crash due to active timer for ABTS
  scsi: mpt3sas: wait for and flush running commands on shutdown/unload
  scsi: mpt3sas: fix oops in error handlers after shutdown/unload
  scsi: storvsc: Spread interrupts when picking a channel for I/O requests
  scsi: megaraid_sas: Do not use 32-bit atomic request descriptor for Ventura controllers
      be75b1b8
    • A
      gfs2: Fixes to "Implement iomap for block_map" (2) · 3b5da96e
      由 Andreas Gruenbacher 提交于 
      It turns out that commit 3229c18c0d6b2 'Fixes to "Implement iomap for
block_map"' introduced another bug in gfs2_iomap_begin that can cause
gfs2_block_map to set bh->b_size of an actual buffer to 0.  This can
lead to arbitrary incorrect behavior including crashes or disk
corruption.  Revert the incorrect part of that commit.
Signed-off-by: NAndreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: NBob Peterson <rpeterso@redhat.com>
      3b5da96e
  7. 07 3月, 2018 3 次提交
  9. 06 3月, 2018 13 次提交
  11. 05 3月, 2018 2 次提交