Eric Lee / smarc-fsl-linux-kernel

14 Dec, 2016

1 commit

  • b78b499a6   Merge tag 'char-misc-4.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc ... Browse Code »

    Pull char/misc driver updates from Greg KH:
    "Here's the big char/misc driver patches for 4.10-rc1. Lots of tiny
    changes over lots of "minor" driver subsystems, the largest being some
    new FPGA drivers. Other than that, a few other new drivers, but no new
    driver subsystems added for this kernel cycle, a nice change.

    All of these have been in linux-next with no reported issues"

    * tag 'char-misc-4.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (107 commits)
    uio-hv-generic: store physical addresses instead of virtual
    Tools: hv: kvp: configurable external scripts path
    uio-hv-generic: new userspace i/o driver for VMBus
    vmbus: add support for dynamic device id's
    hv: change clockevents unbind tactics
    hv: acquire vmbus_connection.channel_mutex in vmbus_free_channels()
    hyperv: Fix spelling of HV_UNKOWN
    mei: bus: enable non-blocking RX
    mei: fix the back to back interrupt handling
    mei: synchronize irq before initiating a reset.
    VME: Remove shutdown entry from vme_driver
    auxdisplay: ht16k33: select framebuffer helper modules
    MAINTAINERS: add git url for fpga
    fpga: Clarify how write_init works streaming modes
    fpga zynq: Fix incorrect ISR state on bootup
    fpga zynq: Remove priv->dev
    fpga zynq: Add missing \n to messages
    fpga: Add COMPILE_TEST to all drivers
    uio: pruss: add clk_disable()
    char/pcmcia: add some error checking in scr24x_read()
    ...

    Linus Torvalds
     

06 Dec, 2016

2 commits

  • fd7aabb06   tools: hv: Enable network manager for bonding scripts on RHEL ... Browse Code »

    We found network manager is necessary on RHEL to make the synthetic
    NIC, VF NIC bonding operations handled automatically. So, enabling
    network manager here.

    Signed-off-by: Haiyang Zhang
    Reviewed-by: K. Y. Srinivasan
    Signed-off-by: David S. Miller

    Haiyang Zhang
     
  • 2eb72d4b7   Tools: hv: kvp: configurable external scripts path ... Browse Code »

    error when running hypervkvpd:
    $ sudo ./hv_kvp_daemon -n

    sh: hv_get_dns_info: command not found
    sh: hv_get_dhcp_info: command not found
    sh: hv_get_dns_info: command not found
    sh: hv_get_dhcp_info: command not found

    The external scripts are not installed in system path,
    adding a configurable macro.

    Signed-off-by: Alex Fluter
    Signed-off-by: K. Y. Srinivasan
    Signed-off-by: Greg Kroah-Hartman

    Alex Fluter
     

07 Nov, 2016

3 commits

02 Sep, 2016

1 commit

  • db886e4d2   Drivers: hv: utils: Check VSS daemon is listening before a hot backup ... Browse Code »

    Hyper-V host will send a VSS_OP_HOT_BACKUP request to check if guest is
    ready for a live backup/snapshot. The driver should respond to the check
    only if the daemon is running and listening to requests. This allows the
    host to fallback to standard snapshots in case the VSS daemon is not
    running.

    Signed-off-by: Alex Ng
    Signed-off-by: K. Y. Srinivasan
    Signed-off-by: Greg Kroah-Hartman

    Alex Ng
     

31 Aug, 2016

1 commit

  • 26840437c   Tools: hv: kvp: ensure kvp device fd is closed on exec ... Browse Code »

    KVP daemon does fork()/exec() (with popen()) so we need to close our fds
    to avoid sharing them with child processes. The immediate implication of
    not doing so I see is SELinux complaining about 'ip' trying to access
    '/dev/vmbus/hv_kvp'.

    Signed-off-by: Vitaly Kuznetsov
    Signed-off-by: K. Y. Srinivasan
    Signed-off-by: Greg Kroah-Hartman

    Vitaly Kuznetsov
     

13 Jul, 2016

1 commit

  • 178cd55f0   tools: hv: Add a script to help bonding synthetic and VF NICs ... Browse Code »

    This script helps to create bonding network devices based on synthetic NIC
    (the virtual network adapter usually provided by Hyper-V) and the matching
    VF NIC (SRIOV virtual function). So the synthetic NIC and VF NIC can
    function as one network device, and fail over to the synthetic NIC if VF is
    down.

    Mayjor distros (RHEL, Ubuntu, SLES) supported by Hyper-V are supported by
    this script.

    Signed-off-by: Haiyang Zhang
    Reviewed-by: K. Y. Srinivasan
    Signed-off-by: David S. Miller

    Haiyang Zhang
     

02 May, 2016

1 commit

08 Feb, 2016

1 commit

15 Dec, 2015

3 commits

06 Aug, 2015

1 commit

25 May, 2015

4 commits

25 Mar, 2015

2 commits

26 Jan, 2015

4 commits

  • c1136da62   Tools: hv: do not add redundant '/' in hv_start_fcopy() ... Browse Code »

    We don't need to add additional '/' to smsg->path_name as snprintf("%s/%s")
    does the right thing. Without the patch we get doubled '//' in the log message.

    Signed-off-by: Vitaly Kuznetsov
    Signed-off-by: K. Y. Srinivasan
    Signed-off-by: Greg Kroah-Hartman

    Vitaly Kuznetsov
     
  • aba474b81   Tools: hv: address compiler warnings for hv_fcopy_daemon.c ... Browse Code »

    This patch addresses two types of compiler warnings:
    ... warning: unused variable .fd. [-Wunused-variable]
    and
    ... warning: format .%s. expects argument of type .char *., but argument 5 has type .__u16 *. [-Wformat=]

    Signed-off-by: Vitaly Kuznetsov
    Signed-off-by: K. Y. Srinivasan
    Signed-off-by: Greg Kroah-Hartman

    Vitaly Kuznetsov
     
  • 69258c058   Tools: hv: address compiler warnings for hv_kvp_daemon.c ... Browse Code »

    This patch addresses two types of compiler warnings:
    ... warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    and
    ... warning: pointer targets in passing argument N of .kvp_.... differ in signedness [-Wpointer-sign]

    Signed-off-by: Vitaly Kuznetsov
    Signed-off-by: K. Y. Srinivasan
    Signed-off-by: Greg Kroah-Hartman

    Vitaly Kuznetsov
     
  • 77ce247a8   Tools: hv: remove unused bytes_written from kvp_update_file() ... Browse Code »

    fwrite() does not actually return the number of bytes written and
    this value is being ignored anyway and ferror() is being called to
    check for an error. As we assign to this variable and never use it
    we get the following compile-time warning:
    hv_kvp_daemon.c:149:9: warning: variable .bytes_written. set but not used [-Wunused-but-set-variable]
    Remove bytes_written completely.

    Signed-off-by: Vitaly Kuznetsov
    Signed-off-by: K. Y. Srinivasan
    Signed-off-by: Greg Kroah-Hartman

    Vitaly Kuznetsov
     

12 Jan, 2015

2 commits

27 Nov, 2014

3 commits

  • 4300f2649   tools: hv: ignore ENOBUFS and ENOMEM in the KVP daemon ... Browse Code »

    Under high memory pressure and very high KVP R/W test pressure, the netlink
    recvfrom() may transiently return ENOBUFS to the daemon -- we found this
    during a 2-week stress test.

    We'd better not terminate the daemon on the failure, because a typical KVP
    user will re-try the R/W and hopefully it will succeed next time.

    We can also ignore the errors on sending.

    Cc: K. Y. Srinivasan
    Signed-off-by: Dexuan Cui
    Reviewed-by: Vitaly Kuznetsov
    Signed-off-by: Greg Kroah-Hartman

    Dexuan Cui
     
  • 9e5db05aa   Tools: hv: vssdaemon: skip all filesystems mounted readonly ... Browse Code »

    Instead of making a list of exceptions for readonly filesystems
    in addition to iso9660 we already have it is better to skip freeze
    operation for all readonly-mounted filesystems.

    Signed-off-by: Vitaly Kuznetsov
    Signed-off-by: K. Y. Srinivasan
    Acked-by: Dexuan Cui
    Signed-off-by: Greg Kroah-Hartman

    Vitaly Kuznetsov
     
  • 7a401744d   Tools: hv: vssdaemon: report freeze errors ... Browse Code »

    When ioctl(fd, FIFREEZE, 0) results in an error we cannot report it
    to syslog instantly since that can cause write to a frozen disk.
    However, the name of the filesystem which caused the error and errno
    are valuable and we would like to get a nice human-readable message
    in the log. Save errno before calling vss_operate(VSS_OP_THAW) and
    report the error right after.

    Unfortunately, FITHAW errors cannot be reported the same way as we
    need to finish thawing all filesystems before calling syslog().

    We should also avoid calling endmntent() for the second time in
    case we encountered an error during freezing of '/' as it usually
    results in SEGSEGV.

    Signed-off-by: Vitaly Kuznetsov
    Signed-off-by: K. Y. Srinivasan
    Acked-by: Dexuan Cui
    Signed-off-by: Greg Kroah-Hartman

    Vitaly Kuznetsov
     

08 Nov, 2014

2 commits

  • 170f4bea2   tools: hv: introduce -n/--no-daemon option ... Browse Code »

    All tools/hv daemons do mandatory daemon() on startup. However, no pidfile
    is created, this make it difficult for an init system to track such daemons.
    Modern linux distros use systemd as their init system. It can handle the
    daemonizing by itself, however, it requires a daemon to stay in foreground
    for that. Some distros already carry distro-specific patch for hv tools
    which switches off daemon().

    Introduce -n/--no-daemon option for all 3 daemons in hv/tools. Parse options
    with getopt() to make this part easily expandable.

    Signed-off-by: Vitaly Kuznetsov
    Signed-off-by: K. Y. Srinivasan
    Signed-off-by: Greg Kroah-Hartman

    Vitaly Kuznetsov
     
  • 4f689190b   Tools: hv: vssdaemon: ignore the EBUSY on multiple freezing the same partition ... Browse Code »

    If a partition appears mounted more than once in /proc/mounts, vss_do_freeze()
    succeeds only for the first time and gets EBUSY (on freeze) or EINVAL (on
    thaw) for the second time. The patch ignores these to make the backup feature
    work.

    Also improved the error handling in case a freeze operation fails.

    Signed-off-by: Dexuan Cui
    Reviewed-by: K. Y. Srinivasan
    Signed-off-by: Greg Kroah-Hartman

    Dexuan Cui
     

10 Jul, 2014

1 commit

17 Apr, 2014

1 commit

19 Feb, 2014

1 commit

  • 01325476d   Drivers: hv: Implement the file copy service ... Browse Code »

    Implement the file copy service for Linux guests on Hyper-V. This permits the
    host to copy a file (over VMBUS) into the guest. This facility is part of
    "guest integration services" supported on the Windows platform.
    Here is a link that provides additional details on this functionality:

    http://technet.microsoft.com/en-us/library/dn464282.aspx

    In V1 version of the patch I have addressed comments from
    Olaf Hering and Dan Carpenter

    In V2 version of this patch I did some minor cleanup (making some globals
    static). In V4 version of the patch I have addressed all of Olaf's
    most recent set of comments/concerns.

    In V5 version of the patch I had addressed Greg's most recent comments.
    I would like to thank Greg for suggesting that I use misc device; it has
    significantly simplified the code.

    In V6 version of the patch I have cleaned up error message based on Olaf's
    comments. I have also rebased the patch based on the current tip.

    In this version of the patch, I have addressed the latest comments from Greg.

    Signed-off-by: K. Y. Srinivasan
    Signed-off-by: Greg Kroah-Hartman

    K. Y. Srinivasan
     

16 Feb, 2014

2 commits

09 Dec, 2013

1 commit

  • 51b68128e   Tools: hv: remove inclusion of linux/types.h ... Browse Code »

    With very old libc headers the inclusion of sys/types.h causes conflicts
    with linux/types.h. Since the latter is not required anyway, remove it
    from the source files. If any of the headers really needs linux/types.h
    it has to include it itself.

    Signed-off-by: Olaf Hering
    Signed-off-by: Greg Kroah-Hartman

    Olaf Hering
     

27 Sep, 2013

2 commits

  • 269ce62bb   Tools: hv: use single send+recv buffer ... Browse Code »

    send_buffer is used only once during registration. To reduce runtime
    memory usage reuse the recv_buffer for registration. Also use
    NLMSG_LENGTH instead of NLMSG_HDRLEN to take alignment into account.

    Signed-off-by: Olaf Hering
    Signed-off-by: Greg Kroah-Hartman

    Olaf Hering
     
  • 58125210a   Tools: hv: cache FQDN in kvp_daemon to avoid timeouts ... Browse Code »

    kvp_daemon does some operations which take an unpredicable amount of
    time. In addition the kernel driver gives the kvp_daemon a 5 second
    timeout to respond to message from the host. If an operation such as
    getaddrinfo takes a long time and the timeout triggers then netlink
    errors occour. As a result of such errors the daemon just terminates and
    the service becomes unavailable.

    Idendifying and fixing these shortcomings in the kernel-userland
    communication protocol will be done in separate patches. This change
    fixes just one obvious timeout bug.

    Update kvp_get_domain_name to not return a value, better diagnostic for
    the consumer of the hostname string, remove trailing newline in error
    case, use snprintf to not overrun output buffer, get hostname only once
    and return the cached result.

    Signed-off-by: Olaf Hering
    Signed-off-by: Greg Kroah-Hartman

    Olaf Hering