Eric Lee / smarc-fsl-linux-kernel

06 Sep, 2016

1 commit

  • e68f1d4ca   s390: Remove deprecated create_singlethread_workqueue ... Browse Code »

    The workqueue "appldata_wq" has been replaced with an ordered dedicated
    workqueue.

    WQ_MEM_RECLAIM has not been set since the workqueue is not being used on
    a memory reclaim path.

    The adapter->work_queue queues multiple work items viz
    &adapter->scan_work, &port->rport_work, &adapter->ns_up_work,
    &adapter->stat_work, adapter->work_queue, &adapter->events.work,
    &port->gid_pn_work, &port->test_link_work. Hence, an ordered
    dedicated workqueue has been used.

    WQ_MEM_RECLAIM has been set to ensure forward progress under memory
    pressure.

    Signed-off-by: Bhaktipriya Shridhar
    Signed-off-by: Heiko Carstens
    Signed-off-by: Martin Schwidefsky

    Bhaktipriya Shridhar
     

29 Jul, 2016

1 commit

  • 11fb99898   mm: move most file-based accounting to the node ... Browse Code »

    There are now a number of accounting oddities such as mapped file pages
    being accounted for on the node while the total number of file pages are
    accounted on the zone. This can be coped with to some extent but it's
    confusing so this patch moves the relevant file-based accounted. Due to
    throttling logic in the page allocator for reliable OOM detection, it is
    still necessary to track dirty and writeback pages on a per-zone basis.

    [mgorman@techsingularity.net: fix NR_ZONE_WRITE_PENDING accounting]
    Link: http://lkml.kernel.org/r/1468404004-5085-5-git-send-email-mgorman@techsingularity.net
    Link: http://lkml.kernel.org/r/1467970510-21195-20-git-send-email-mgorman@techsingularity.net
    Signed-off-by: Mel Gorman
    Acked-by: Vlastimil Babka
    Acked-by: Michal Hocko
    Cc: Hillf Danton
    Acked-by: Johannes Weiner
    Cc: Joonsoo Kim
    Cc: Minchan Kim
    Cc: Rik van Riel
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Mel Gorman
     

20 Oct, 2014

1 commit

20 May, 2014

1 commit

  • f1a858206   s390/appldata: add slab.h for kzalloc/kfree ... Browse Code »

    This fixes:
    arch/s390/appldata/appldata_mem.c:135:2: error: implicit declaration of function 'kzalloc' [-Werror=implicit-function-declaration]
    arch/s390/appldata/appldata_mem.c:141:3: error: implicit declaration of function 'kfree' [-Werror=implicit-function-declaration]

    Signed-off-by: Jeff Mahoney
    Signed-off-by: Heiko Carstens
    Signed-off-by: Martin Schwidefsky

    Jeff Mahoney
     

07 Mar, 2014

1 commit

  • 6967037ba   s390/appldata_os: fix cpu array size calculation ... Browse Code »

    The cpu array size calculation uses the NR_CPUS config option, which
    was recently increased from 64 to 256. With a value of 256, the cpu
    array will no longer fit into one APPLDATA record and loading the
    appldata_os module fails with the following error:
    could not insert 'appldata_os': Cannot allocate memory

    Use num_possible_cpus() instead of NR_CPUS. For z/VM, this will still
    result in a value of 64. This is not true for LPAR, but the appldata
    feature is not available for LPAR.

    Signed-off-by: Gerald Schaefer
    Signed-off-by: Martin Schwidefsky

    Gerald Schaefer
     

29 Jan, 2014

1 commit

28 Oct, 2013

1 commit

24 Oct, 2013

1 commit

  • 57f47ba0c   s390/appldata: make copy_from_user() invocations provably correct ... Browse Code »

    Just change the type of "len" to unsigned int so the compiler can prove
    that we don't have a buffer overflow (and generates less code).
    We get rid of these:

    In function 'copy_from_user',
    inlined from 'appldata_interval_handler' at
    arch/s390/appldata/appldata_base.c:265:
    uaccess.h:303: warning: call to 'copy_from_user_overflow' declared
    with attribute warning: copy_from_user() buffer size is not provably
    correct
    In function 'copy_from_user',
    inlined from 'appldata_timer_handler' at
    arch/s390/appldata/appldata_base.c:225:
    uaccess.h:303: warning: call to 'copy_from_user_overflow' declared
    with attribute warning: copy_from_user() buffer size is not provably
    correct
    In function 'copy_from_user',
    inlined from 'appldata_generic_handler' at
    arch/s390/appldata/appldata_base.c:333:
    uaccess.h:303: warning: call to 'copy_from_user_overflow' declared
    with attribute warning: copy_from_user() buffer size is not provably
    correct

    Signed-off-by: Heiko Carstens
    Signed-off-by: Martin Schwidefsky

    Heiko Carstens
     

27 Jun, 2013

2 commits

  • 2ab146192   s390/appldata_net_sum: do not use static data ... Browse Code »

    Using static data for fields which are accessed by HW will fail if
    the driver is build as a module (since this would be vmalloc'ed
    memory). This Bug was revealed via
    "s390: remove virt_to_phys implementation" - the old virt_to_phys
    implementation would have translated the address but it was not
    guaranteed that the memory was contiguous.

    Signed-off-by: Sebastian Ott
    Reviewed-by: Gerald Schaefer
    Signed-off-by: Martin Schwidefsky

    Sebastian Ott
     
  • a94f0fb1a   s390/appldata_mem: do not use static data ... Browse Code »

    Using static data for fields which are accessed by HW will fail if
    the driver is build as a module (since this would be vmalloc'ed
    memory). This Bug was revealed via
    "s390: remove virt_to_phys implementation" - the old virt_to_phys
    implementation would have translated the address but it was not
    guaranteed that the memory was contiguous.

    Signed-off-by: Sebastian Ott
    Reviewed-by: Gerald Schaefer
    Signed-off-by: Martin Schwidefsky

    Sebastian Ott
     

28 May, 2013

1 commit

14 Feb, 2013

1 commit

20 Jul, 2012

2 commits

  • 27f6b4166   s390/vtimer: rework virtual timer interface ... Browse Code »

    The current virtual timer interface is inherently per-cpu and hard to
    use. The sole user of the interface is appldata which uses it to execute
    a function after a specific amount of cputime has been used over all cpus.

    Rework the virtual timer interface to hook into the cputime accounting.
    This makes the interface independent from the CPU timer interrupts, and
    makes the virtual timers global as opposed to per-cpu.
    Overall the code is greatly simplified. The downside is that the accuracy
    is not as good as the original implementation, but it is still good enough
    for appldata.

    Reviewed-by: Jan Glauber
    Reviewed-by: Heiko Carstens
    Signed-off-by: Martin Schwidefsky

    Martin Schwidefsky
     
  • a53c8fab3   s390/comments: unify copyright messages and remove file names ... Browse Code »

    Remove the file name from the comment at top of many files. In most
    cases the file name was wrong anyway, so it's rather pointless.

    Also unify the IBM copyright statement. We did have a lot of sightly
    different statements and wanted to change them one after another
    whenever a file gets touched. However that never happened. Instead
    people start to take the old/"wrong" statements to use as a template
    for new files.
    So unify all of them in one go.

    Signed-off-by: Heiko Carstens

    Heiko Carstens
     

06 Dec, 2011

1 commit

  • 3292beb34   sched/accounting: Change cpustat fields to an array ... Browse Code »
    43

    This patch changes fields in cpustat from a structure, to an
    u64 array. Math gets easier, and the code is more flexible.

    Signed-off-by: Glauber Costa
    Reviewed-by: KAMEZAWA Hiroyuki
    Cc: Linus Torvalds
    Cc: Andrew Morton
    Cc: Paul Tuner
    Signed-off-by: Peter Zijlstra
    Link: http://lkml.kernel.org/r/1322498719-2255-2-git-send-email-glommer@parallels.com
    Signed-off-by: Ingo Molnar

    Glauber Costa
     

26 May, 2011

1 commit

23 May, 2011

1 commit

13 Aug, 2010

1 commit

  • e402e38c6   [S390] appldata: fix dev_get_stats 64 bit conversion ... Browse Code »

    Fix this warning:

    arch/s390/appldata/appldata_net_sum.c: In function 'appldata_get_net_sum_data':
    arch/s390/appldata/appldata_net_sum.c:89: warning: initialization from incompatible pointer type

    which was introduced with be1f3c2c027cc5ad735df6a45a542ed1db7ec48b
    "net: Enable 64-bit net device statistics on 32-bit architectures"

    Signed-off-by: Heiko Carstens
    Signed-off-by: Martin Schwidefsky

    Heiko Carstens
     

05 Aug, 2010

1 commit

  • 6ba74014c   Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 ... Browse Code »

    * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1443 commits)
    phy/marvell: add 88ec048 support
    igb: Program MDICNFG register prior to PHY init
    e1000e: correct MAC-PHY interconnect register offset for 82579
    hso: Add new product ID
    can: Add driver for esd CAN-USB/2 device
    l2tp: fix export of header file for userspace
    can-raw: Fix skb_orphan_try handling
    Revert "net: remove zap_completion_queue"
    net: cleanup inclusion
    phy/marvell: add 88e1121 interface mode support
    u32: negative offset fix
    net: Fix a typo from "dev" to "ndev"
    igb: Use irq_synchronize per vector when using MSI-X
    ixgbevf: fix null pointer dereference due to filter being set for VLAN 0
    e1000e: Fix irq_synchronize in MSI-X case
    e1000e: register pm_qos request on hardware activation
    ip_fragment: fix subtracting PPPOE_SES_HLEN from mtu twice
    net: Add getsockopt support for TCP thin-streams
    cxgb4: update driver version
    cxgb4: add new PCI IDs
    ...

    Manually fix up conflicts in:
    - drivers/net/e1000e/netdev.c: due to pm_qos registration
    infrastructure changes
    - drivers/net/phy/marvell.c: conflict between adding 88ec048 support
    and cleaning up the IDs
    - drivers/net/wireless/ipw2x00/ipw2100.c: trivial ipw2100_pm_qos_req
    conflict (registration change vs marking it static)

    Linus Torvalds
     

08 Jul, 2010

1 commit

  • 28172739f   net: fix 64 bit counters on 32 bit arches ... Browse Code »

    There is a small possibility that a reader gets incorrect values on 32
    bit arches. SNMP applications could catch incorrect counters when a
    32bit high part is changed by another stats consumer/provider.

    One way to solve this is to add a rtnl_link_stats64 param to all
    ndo_get_stats64() methods, and also add such a parameter to
    dev_get_stats().

    Rule is that we are not allowed to use dev->stats64 as a temporary
    storage for 64bit stats, but a caller provided area (usually on stack)

    Old drivers (only providing get_stats() method) need no changes.

    Signed-off-by: Eric Dumazet
    Signed-off-by: David S. Miller

    Eric Dumazet
     

09 Jun, 2010

1 commit

30 Mar, 2010

1 commit

  • 5a0e3ad6a   include cleanup: Update gfp.h and slab.h includes to prepare for breaking implic… ... Browse Code »

    …it slab.h inclusion from percpu.h

    percpu.h is included by sched.h and module.h and thus ends up being
    included when building most .c files. percpu.h includes slab.h which
    in turn includes gfp.h making everything defined by the two files
    universally available and complicating inclusion dependencies.

    percpu.h -> slab.h dependency is about to be removed. Prepare for
    this change by updating users of gfp and slab facilities include those
    headers directly instead of assuming availability. As this conversion
    needs to touch large number of source files, the following script is
    used as the basis of conversion.

    http://userweb.kernel.org/~tj/misc/slabh-sweep.py

    The script does the followings.

    * Scan files for gfp and slab usages and update includes such that
    only the necessary includes are there. ie. if only gfp is used,
    gfp.h, if slab is used, slab.h.

    * When the script inserts a new include, it looks at the include
    blocks and try to put the new include such that its order conforms
    to its surrounding. It's put in the include block which contains
    core kernel includes, in the same order that the rest are ordered -
    alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
    doesn't seem to be any matching order.

    * If the script can't find a place to put a new include (mostly
    because the file doesn't have fitting include block), it prints out
    an error message indicating which .h file needs to be added to the
    file.

    The conversion was done in the following steps.

    1. The initial automatic conversion of all .c files updated slightly
    over 4000 files, deleting around 700 includes and adding ~480 gfp.h
    and ~3000 slab.h inclusions. The script emitted errors for ~400
    files.

    2. Each error was manually checked. Some didn't need the inclusion,
    some needed manual addition while adding it to implementation .h or
    embedding .c file was more appropriate for others. This step added
    inclusions to around 150 files.

    3. The script was run again and the output was compared to the edits
    from #2 to make sure no file was left behind.

    4. Several build tests were done and a couple of problems were fixed.
    e.g. lib/decompress_*.c used malloc/free() wrappers around slab
    APIs requiring slab.h to be added manually.

    5. The script was run on all .h files but without automatically
    editing them as sprinkling gfp.h and slab.h inclusions around .h
    files could easily lead to inclusion dependency hell. Most gfp.h
    inclusion directives were ignored as stuff from gfp.h was usually
    wildly available and often used in preprocessor macros. Each
    slab.h inclusion directive was examined and added manually as
    necessary.

    6. percpu.h was updated not to include slab.h.

    7. Build test were done on the following configurations and failures
    were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my
    distributed build env didn't work with gcov compiles) and a few
    more options had to be turned off depending on archs to make things
    build (like ipr on powerpc/64 which failed due to missing writeq).

    * x86 and x86_64 UP and SMP allmodconfig and a custom test config.
    * powerpc and powerpc64 SMP allmodconfig
    * sparc and sparc64 SMP allmodconfig
    * ia64 SMP allmodconfig
    * s390 SMP allmodconfig
    * alpha SMP allmodconfig
    * um on x86_64 SMP allmodconfig

    8. percpu.h modifications were reverted so that it could be applied as
    a separate patch and serve as bisection point.

    Given the fact that I had only a couple of failures from tests on step
    6, I'm fairly confident about the coverage of this conversion patch.
    If there is a breakage, it's likely to be something in one of the arch
    headers which should be easily discoverable easily on most builds of
    the specific arch.

    Signed-off-by: Tejun Heo <tj@kernel.org>
    Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
    Cc: Ingo Molnar <mingo@redhat.com>
    Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>

    Tejun Heo
     

16 Dec, 2009

1 commit

08 Dec, 2009

1 commit

  • d7fc02c7b   Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 ... Browse Code »

    * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1815 commits)
    mac80211: fix reorder buffer release
    iwmc3200wifi: Enable wimax core through module parameter
    iwmc3200wifi: Add wifi-wimax coexistence mode as a module parameter
    iwmc3200wifi: Coex table command does not expect a response
    iwmc3200wifi: Update wiwi priority table
    iwlwifi: driver version track kernel version
    iwlwifi: indicate uCode type when fail dump error/event log
    iwl3945: remove duplicated event logging code
    b43: fix two warnings
    ipw2100: fix rebooting hang with driver loaded
    cfg80211: indent regulatory messages with spaces
    iwmc3200wifi: fix NULL pointer dereference in pmkid update
    mac80211: Fix TX status reporting for injected data frames
    ath9k: enable 2GHz band only if the device supports it
    airo: Fix integer overflow warning
    rt2x00: Fix padding bug on L2PAD devices.
    WE: Fix set events not propagated
    b43legacy: avoid PPC fault during resume
    b43: avoid PPC fault during resume
    tcp: fix a timewait refcnt race
    ...

    Fix up conflicts due to sysctl cleanups (dead sysctl_check code and
    CTL_UNNUMBERED removed) in
    kernel/sysctl_check.c
    net/ipv4/sysctl_net_ipv4.c
    net/ipv6/addrconf.c
    net/sctp/sysctl.c

    Linus Torvalds
     

19 Nov, 2009

1 commit

11 Nov, 2009

1 commit

24 Sep, 2009

1 commit

  • 8d65af789   sysctl: remove "struct file *" argument of ->proc_handler ... Browse Code »

    It's unused.

    It isn't needed -- read or write flag is already passed and sysctl
    shouldn't care about the rest.

    It _was_ used in two places at arch/frv for some reason.

    Signed-off-by: Alexey Dobriyan
    Cc: David Howells
    Cc: "Eric W. Biederman"
    Cc: Al Viro
    Cc: Ralf Baechle
    Cc: Martin Schwidefsky
    Cc: Ingo Molnar
    Cc: "David S. Miller"
    Cc: James Morris
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Alexey Dobriyan
     

16 Jun, 2009

1 commit

23 Apr, 2009

1 commit

  • b1ad171ef   [S390] appldata: avoid deadlock with appldata_mem ... Browse Code »

    The appldata_ops callbacks are called with a spin_lock held. But the
    appldata_mem callback then calls all_vm_events(), which calls
    get_online_cpus(), which might sleep. This possible deadlock is fixed
    by using a mutex instead of a spin_lock.

    Signed-off-by: Gerald Schaefer
    Signed-off-by: Martin Schwidefsky

    Gerald Schaefer
     

14 Apr, 2009

1 commit

  • 43ae8a1b3   [S390] appldata: Use new mod_virt_timer_periodic() function. ... Browse Code »

    mod_virt_timer() was used to modify/add cpu timers for cpus that were
    set online. This resulted in a one-shot timer for every cpu that was
    newly added or previously set offline, instead of an interval timer,
    which broke the appldata vtime interval setup.

    To fix this, the new mod_virt_timer_periodic() function is used, which
    adds interval timers instead of one-shot timers.

    Signed-off-by: Gerald Schaefer
    Signed-off-by: Martin Schwidefsky

    Gerald Schaefer
     

29 Dec, 2008

1 commit

  • 0191b625c   Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 ... Browse Code »

    * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1429 commits)
    net: Allow dependancies of FDDI & Tokenring to be modular.
    igb: Fix build warning when DCA is disabled.
    net: Fix warning fallout from recent NAPI interface changes.
    gro: Fix potential use after free
    sfc: If AN is enabled, always read speed/duplex from the AN advertising bits
    sfc: When disabling the NIC, close the device rather than unregistering it
    sfc: SFT9001: Add cable diagnostics
    sfc: Add support for multiple PHY self-tests
    sfc: Merge top-level functions for self-tests
    sfc: Clean up PHY mode management in loopback self-test
    sfc: Fix unreliable link detection in some loopback modes
    sfc: Generate unique names for per-NIC workqueues
    802.3ad: use standard ethhdr instead of ad_header
    802.3ad: generalize out mac address initializer
    802.3ad: initialize ports LACPDU from const initializer
    802.3ad: remove typedef around ad_system
    802.3ad: turn ports is_individual into a bool
    802.3ad: turn ports is_enabled into a bool
    802.3ad: make ntt bool
    ixgbe: Fix set_ringparam in ixgbe to use the same memory pools.
    ...

    Fixed trivial IPv4/6 address printing conflicts in fs/cifs/connect.c due
    to the conversion to %pI (in this networking merge) and the addition of
    doing IPv6 addresses (from the earlier merge of CIFS).

    Linus Torvalds
     

25 Dec, 2008

1 commit

20 Nov, 2008

1 commit

  • eeda3fd64   netdev: introduce dev_get_stats() ... Browse Code »

    In order for the network device ops get_stats call to be immutable, the handling
    of the default internal network device stats block has to be changed. Add a new
    helper function which replaces the old use of internal_get_stats.

    Note: change return code to make it clear that the caller should not
    go changing the returned statistics.

    Signed-off-by: Stephen Hemminger
    Signed-off-by: David S. Miller

    Stephen Hemminger
     

28 Oct, 2008

1 commit

16 Jul, 2008

1 commit

  • 1a781a777   Merge branch 'generic-ipi' into generic-ipi-for-linus ... Browse Code »

    Conflicts:

    arch/powerpc/Kconfig
    arch/s390/kernel/time.c
    arch/x86/kernel/apic_32.c
    arch/x86/kernel/cpu/perfctr-watchdog.c
    arch/x86/kernel/i8259_64.c
    arch/x86/kernel/ldt.c
    arch/x86/kernel/nmi_64.c
    arch/x86/kernel/smpboot.c
    arch/x86/xen/smp.c
    include/asm-x86/hw_irq_32.h
    include/asm-x86/hw_irq_64.h
    include/asm-x86/mach-default/irq_vectors.h
    include/asm-x86/mach-voyager/irq_vectors.h
    include/asm-x86/smp.h
    kernel/Makefile

    Signed-off-by: Ingo Molnar

    Ingo Molnar
     

14 Jul, 2008

2 commits

26 Jun, 2008

1 commit

30 May, 2008

1 commit

20 Nov, 2007

1 commit