1. 21 Jul, 2008 40 commits
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 · e89970aa
      Linus Torvalds authored
      * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
        netfilter: nf_conntrack_sctp: fix sparse warnings
        netfilter: nf_nat_sip: c= is optional for session
        netfilter: xt_TCPMSS: collapse tcpmss_reverse_mtu{4,6} into one function
        netfilter: nfnetlink_log: send complete hardware header
        netfilter: xt_time: fix time's time_mt()'s use of do_div()
        netfilter: accounting rework: ct_extend + 64bit counters (v4)
        netlink: add NLA_PUT_BE64 macro
        netfilter: nf_nat_core: eliminate useless find_appropriate_src for IP_NAT_RANGE_PROTO_RANDOM
        hdlcdrv: Fix CRC calculation.
        Revert "pkt_sched: Make default qdisc nonshared-multiqueue safe."
        net: In __netif_schedule() use WARN_ON instead of BUG_ON
        net: Improve simple_tx_hash().
        pkt_sched: Remove unused variable skb in dev_deactivate_queue function.
        sunhme: Remove stop/wake TX queue calls in set-multicast-list handler.
        ucc_geth: do not touch net queue in adjust_link phylib callback
        gianfar: do not touch net queue in adjust_link phylib callback
        atl1: Do not wake queue before queue has been started.
      e89970aa
    • Randy Dunlap's avatar
      pci kernel-doc fatal error · 443bd1c4
      Randy Dunlap authored
      Fix kernel-doc comments so that they don't produce errors.
      Also cut some extraneous copy-paste text.
      
      Error(linhead//drivers/pci/pci.c:1133): duplicate section name 'Description'
      Error(linhead//drivers/pci/pci.c:1189): duplicate section name 'Description'
      Signed-off-by: default avatarRandy Dunlap <randy.dunlap@oracle.com>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      443bd1c4
    • Linus Torvalds's avatar
      Merge branch 'x86/for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip · 72a73693
      Linus Torvalds authored
      * 'x86/for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (160 commits)
        x86: remove extra calling to get ext cpuid level
        x86: use setup_clear_cpu_cap() when disabling the lapic
        KVM: fix exception entry / build bug, on 64-bit
        x86: add unknown_nmi_panic kernel parameter
        x86, VisWS: turn into generic arch, eliminate leftover files
        x86: add ->pre_time_init to x86_quirks
        x86: extend and use x86_quirks to clean up NUMAQ code
        x86: introduce x86_quirks
        x86: improve debug printout: add target bootmem range in early_res_to_bootmem()
        Subject: devmem, x86: fix rename of CONFIG_NONPROMISC_DEVMEM
        x86: remove arch_get_ram_range
        x86: Add a debugfs interface to dump PAT memtype
        x86: Add a arch directory for x86 under debugfs
        x86: i386: reduce boot fixmap space
        i386/xen: add proper unwind annotations to xen_sysenter_target
        x86: reduce force_mwait visibility
        x86: reduce forbid_dac's visibility
        x86: fix two modpost warnings
        x86: check function status in EDD boot code
        x86_64: ia32_signal.c: remove signal number conversion
        ...
      72a73693
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-2.6-dm · b7e6f62f
      Linus Torvalds authored
      * git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-2.6-dm:
        dm crypt: add merge
        dm table: remove merge_bvec sector restriction
        dm: linear add merge
        dm: introduce merge_bvec_fn
        dm snapshot: use per device mempools
        dm snapshot: fix race during exception creation
        dm snapshot: track snapshot reads
        dm mpath: fix test for reinstate_path
        dm mpath: return parameter error
        dm io: remove struct padding
        dm log: make dm_dirty_log init and exit static
        dm mpath: free path selector on invalid args
      b7e6f62f
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://neil.brown.name/md · 8a392625
      Linus Torvalds authored
      * 'for-linus' of git://neil.brown.name/md: (52 commits)
        md: Protect access to mddev->disks list using RCU
        md: only count actual openers as access which prevent a 'stop'
        md: linear: Make array_size sector-based and rename it to array_sectors.
        md: Make mddev->array_size sector-based.
        md: Make super_type->rdev_size_change() take sector-based sizes.
        md: Fix check for overlapping devices.
        md: Tidy up rdev_size_store a bit:
        md: Remove some unused macros.
        md: Turn rdev->sb_offset into a sector-based quantity.
        md: Make calc_dev_sboffset() return a sector count.
        md: Replace calc_dev_size() by calc_num_sectors().
        md: Make update_size() take the number of sectors.
        md: Better control of when do_md_stop is allowed to stop the array.
        md: get_disk_info(): Don't convert between signed and unsigned and back.
        md: Simplify restart_array().
        md: alloc_disk_sb(): Return proper error value.
        md: Simplify sb_equal().
        md: Simplify uuid_equal().
        md: sb_equal(): Fix misleading printk.
        md: Fix a typo in the comment to cmd_match().
        ...
      8a392625
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input · 519f0141
      Linus Torvalds authored
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (48 commits)
        Input: add switch for dock events
        Input: add microphone insert switch definition
        Input: i8042 - add Arima-Rioworks HDAMB board to noloop list
        Input: sgi_btns - add support for SGI Indy volume buttons
        Input: add option to disable HP SDC driver
        Input: serio - trivial documentation fix
        Input: add new serio driver for Xilinx XPS PS2 IP
        Input: add driver for Tabletkiosk Sahara TouchIT-213 touchscreen
        Input: new driver for SGI O2 volume buttons
        Input: yealink - reliably kill urbs
        Input: q40kbd - make q40kbd_lock static
        Input: gtco - eliminate early return
        Input: i8042 - add Dritek quirk for Acer Aspire 5720
        Input: usbtouchscreen - ignore eGalax screens supporting HID protocol
        Input: i8042 - add Medion NAM 2070 to noloop blacklist
        Input: i8042 - add Gericom Bellagio to nomux blacklist
        Input: i8042 - add Acer Aspire 1360 to nomux blacklist
        Input: hp_sdc_mlc.c - make a struct static
        Input: hil_mlc.c - make code static
        Input: wistron - generate normal key event if bluetooth or wifi not present
        ...
      519f0141
    • Patrick McHardy's avatar
      netfilter: nf_conntrack_sctp: fix sparse warnings · 5547cd0a
      Patrick McHardy authored
      Introduced by a258860e (netfilter: ctnetlink: add full support for SCTP to ctnetlink):
      
      net/netfilter/nf_conntrack_proto_sctp.c:483:2: warning: cast from restricted type
      net/netfilter/nf_conntrack_proto_sctp.c:483:2: warning: incorrect type in argument 1 (different base types)
      net/netfilter/nf_conntrack_proto_sctp.c:483:2:    expected unsigned int [unsigned] [usertype] x
      net/netfilter/nf_conntrack_proto_sctp.c:483:2:    got restricted unsigned int const <noident>
      net/netfilter/nf_conntrack_proto_sctp.c:483:2: warning: cast from restricted type
      net/netfilter/nf_conntrack_proto_sctp.c:483:2: warning: cast from restricted type
      net/netfilter/nf_conntrack_proto_sctp.c:483:2: warning: cast from restricted type
      net/netfilter/nf_conntrack_proto_sctp.c:483:2: warning: cast from restricted type
      net/netfilter/nf_conntrack_proto_sctp.c:487:2: warning: cast from restricted type
      net/netfilter/nf_conntrack_proto_sctp.c:487:2: warning: incorrect type in argument 1 (different base types)
      net/netfilter/nf_conntrack_proto_sctp.c:487:2:    expected unsigned int [unsigned] [usertype] x
      net/netfilter/nf_conntrack_proto_sctp.c:487:2:    got restricted unsigned int const <noident>
      net/netfilter/nf_conntrack_proto_sctp.c:487:2: warning: cast from restricted type
      net/netfilter/nf_conntrack_proto_sctp.c:487:2: warning: cast from restricted type
      net/netfilter/nf_conntrack_proto_sctp.c:487:2: warning: cast from restricted type
      net/netfilter/nf_conntrack_proto_sctp.c:487:2: warning: cast from restricted type
      net/netfilter/nf_conntrack_proto_sctp.c:532:42: warning: incorrect type in assignment (different base types)
      net/netfilter/nf_conntrack_proto_sctp.c:532:42:    expected restricted unsigned int <noident>
      net/netfilter/nf_conntrack_proto_sctp.c:532:42:    got unsigned int
      net/netfilter/nf_conntrack_proto_sctp.c:534:39: warning: incorrect type in assignment (different base types)
      net/netfilter/nf_conntrack_proto_sctp.c:534:39:    expected restricted unsigned int <noident>
      net/netfilter/nf_conntrack_proto_sctp.c:534:39:    got unsigned int
      Signed-off-by: default avatarPatrick McHardy <kaber@trash.net>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      5547cd0a
    • Herbert Xu's avatar
      netfilter: nf_nat_sip: c= is optional for session · c71529e4
      Herbert Xu authored
      According to RFC2327, the connection information is optional
      in the session description since it can be specified in the
      media description instead.
      
      My provider does exactly that and does not provide any connection
      information in the session description.  As a result the new
      kernel drops all invite responses.
      
      This patch makes it optional as documented.
      Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
      Signed-off-by: default avatarPatrick McHardy <kaber@trash.net>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      c71529e4
    • Jan Engelhardt's avatar
    • Eric Leblond's avatar
      netfilter: nfnetlink_log: send complete hardware header · 72961ecf
      Eric Leblond authored
      This patch adds some fields to NFLOG to be able to send the complete
      hardware header with all necessary informations.
      It sends to userspace:
       * the type of hardware link
       * the lenght of hardware header
       * the hardware header
      Signed-off-by: default avatarEric Leblond <eric@inl.fr>
      Signed-off-by: default avatarPatrick McHardy <kaber@trash.net>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      72961ecf
    • David Howells's avatar
      netfilter: xt_time: fix time's time_mt()'s use of do_div() · 280763c0
      David Howells authored
      Fix netfilter xt_time's time_mt()'s use of do_div() on an s64 by using
      div_s64() instead.
      
      This was introduced by patch ee4411a1
      ("[NETFILTER]: x_tables: add xt_time match").
      Signed-off-by: default avatarDavid Howells <dhowells@redhat.com>
      Signed-off-by: default avatarPatrick McHardy <kaber@trash.net>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      280763c0
    • Krzysztof Piotr Oledzki's avatar
      netfilter: accounting rework: ct_extend + 64bit counters (v4) · 58401572
      Krzysztof Piotr Oledzki authored
      Initially netfilter has had 64bit counters for conntrack-based accounting, but
      it was changed in 2.6.14 to save memory. Unfortunately in-kernel 64bit counters are
      still required, for example for "connbytes" extension. However, 64bit counters
      waste a lot of memory and it was not possible to enable/disable it runtime.
      
      This patch:
       - reimplements accounting with respect to the extension infrastructure,
       - makes one global version of seq_print_acct() instead of two seq_print_counters(),
       - makes it possible to enable it at boot time (for CONFIG_SYSCTL/CONFIG_SYSFS=n),
       - makes it possible to enable/disable it at runtime by sysctl or sysfs,
       - extends counters from 32bit to 64bit,
       - renames ip_conntrack_counter -> nf_conn_counter,
       - enables accounting code unconditionally (no longer depends on CONFIG_NF_CT_ACCT),
       - set initial accounting enable state based on CONFIG_NF_CT_ACCT
       - removes buggy IPCT_COUNTER_FILLING event handling.
      
      If accounting is enabled newly created connections get additional acct extend.
      Old connections are not changed as it is not possible to add a ct_extend area
      to confirmed conntrack. Accounting is performed for all connections with
      acct extend regardless of a current state of "net.netfilter.nf_conntrack_acct".
      Signed-off-by: default avatarKrzysztof Piotr Oledzki <ole@ans.pl>
      Signed-off-by: default avatarPatrick McHardy <kaber@trash.net>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      58401572
    • Krzysztof Piotr Oledzki's avatar
      netlink: add NLA_PUT_BE64 macro · 07a7c107
      Krzysztof Piotr Oledzki authored
      Add NLA_PUT_BE64 macro required for 64bit counters in netfilter
      Signed-off-by: default avatarKrzysztof Piotr Oledzki <ole@ans.pl>
      Signed-off-by: default avatarPatrick McHardy <kaber@trash.net>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      07a7c107
    • Changli Gao's avatar
    • Micah Dowty's avatar
      hdlcdrv: Fix CRC calculation. · ae6134bd
      Micah Dowty authored
      This is a trivial patch against the hdlcdrv module that fixes its CRC
      calculation. The finished CRC was overwriting the first two bytes of
      each packet rather than being appended to the end.
      
      I've tested this with 2.6.8 and 2.6.10-rc1, but hdlcdrv hasn't changed
      much recently so it should work with many other kernel versions.
      Signed-off-by: default avatarMicah Dowty <micah@navi.cx>
      Acked-by: default avatarThomas Sailer <t.sailer@alumni.ethz.ch>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      ae6134bd
    • David S. Miller's avatar
      Revert "pkt_sched: Make default qdisc nonshared-multiqueue safe." · d3678b46
      David S. Miller authored
      This reverts commit a0c80b80.
      
      After discussions with Jamal and Herbert on netdev, we should
      provide at least minimal prioritization at the qdisc level
      even in multiqueue situations.
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      d3678b46
    • Linus Torvalds's avatar
    • David S. Miller's avatar
      net: Improve simple_tx_hash(). · b6b2fed1
      David S. Miller authored
      Based upon feedback from Eric Dumazet and Andi Kleen.
      
      Cure several deficiencies in simple_tx_hash() by using
      jhash + reciprocol multiply.
      
      1) Eliminates expensive modulus operation.
      
      2) Makes hash less attackable by using random seed.
      
      3) Eliminates endianness hash distribution issues.
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      b6b2fed1
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6 · f8b71a3a
      Linus Torvalds authored
      * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6: (44 commits)
        sparc: Remove Sparc's asm-offsets for sclow.S
        sparc64: Update defconfig.
        sparc64: Add Niagara2 RNG driver.
        sparc64: Add missing hypervisor service group numbers.
        sparc64: Remove 4MB and 512K base page size options.
        sparc64: Convert to generic helpers for IPI function calls.
        sparc: Use new '%pS' infrastructure to print symbols.
        sparc32: fix init.c allnoconfig build error
        sparc64: Config category "Processor type and features" absent
        sparc: arch/sparc/kernel/apc.c to unlocked_ioctl
        sparc: join the remaining header files
        sparc: merge header files with trivial differences
        sparc: when header files are equal use asm-sparc version
        sparc: copy sparc64 specific files to asm-sparc
        sparc: Merge asm-sparc{,64}/asi.h
        sparc: export openprom.h to userspace
        sparc: Merge asm-sparc{,64}/types.h
        sparc: Merge asm-sparc{,64}/termios.h
        sparc: Merge asm-sparc{,64}/termbits.h
        sparc: Merge asm-sparc{,64}/setup.h
        ...
      f8b71a3a
    • Wang Chen's avatar
      Fix istallion build failure · 42a77a1b
      Wang Chen authored
      Commits b02f5ad6 ("istallion: use
      tty_port") and a352def2 ("tty: Ldisc
      revamp") broke the istallion driver.
      
      Fix the compile error and silence a warning.
      Signed-off-by: default avatarWang Chen <wangchen@cn.fujitsu.com>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      42a77a1b
    • Daniel Lezcano's avatar
      pkt_sched: Remove unused variable skb in dev_deactivate_queue function. · c3ee8416
      Daniel Lezcano authored
      Removed unused variable 'skb' in the dev_deactivate_queue function
      Signed-off-by: default avatarDaniel Lezcano <dlezcano@fr.ibm.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      c3ee8416
    • David S. Miller's avatar
      sunhme: Remove stop/wake TX queue calls in set-multicast-list handler. · fd24c4af
      David S. Miller authored
      Based upon a bug report by Alexander Beregalov and commentary
      from Ben Hutchings.
      
      These are totally unnecessary, in particular because this
      driver's ->hard_start_xmit() handler takes the same driver
      spinlock that the set-multicast-list handler uses.
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      fd24c4af
    • Anton Vorontsov's avatar
      ucc_geth: do not touch net queue in adjust_link phylib callback · ebbdbd7c
      Anton Vorontsov authored
      If the net queue has not been started, we'll get this nice oops
      and non-working ethernet:
      
      ------------[ cut here ]------------
      Kernel BUG at c01f4648 [verbose debug info unavailable]
      Oops: Exception in kernel mode, sig: 5 [#1]
      MPC836x RDK
      Modules linked in:
      NIP: c01f4648 LR: c01c0a10 CTR: c01c08e4
      REGS: cf839e40 TRAP: 0700   Not tainted  (2.6.26-05254-gc7b9969)
      MSR: 00021032 <ME,IR,DR>  CR: 22042044  XER: 00000000
      TASK = cf828c30[4] 'events/0' THREAD: cf838000
      GPR00: c01c0a10 cf839ef0 cf828c30 c035ceb0 cf8469a0 00000064 00000000 00000000
      GPR08: c035ceb0 00000001 00000001 cf99c280 22044044 7ca81020 0fffc000 00000000
      GPR16: 0fff2544 0fff63c0 00000000 0fff78e0 0ffa5580 00000004 00000000 00000000
      GPR24: 02082000 cf9d0000 d1068000 00009032 cf846800 cf846b80 00000001 00000014
      NIP [c01f4648] __netif_schedule+0x28/0x8c
      LR [c01c0a10] adjust_link+0x12c/0x1e4
      Call Trace:
      [cf839ef0] [c0380f50] 0xc0380f50 (unreliable)
      [cf839f10] [c01c0a10] adjust_link+0x12c/0x1e4
      [cf839f40] [c01c2628] phy_state_machine+0x2e0/0x448
      [cf839f60] [c00425e8] run_workqueue+0xc8/0x168
      [cf839f90] [c0042c6c] worker_thread+0x70/0xd0
      [cf839fd0] [c0046954] kthread+0x48/0x84
      [cf839ff0] [c0012488] kernel_thread+0x44/0x60
      Instruction dump:
      7c0803a6 4e800020 3d20c036 9421ffe0 7c0802a6 7c681b78 3929ceb0 7c694a78
      7d290034 90010024 bfa10014 5529d97e <0f090000> 39600002 38030024 7d200028
      ---[ end trace a57d367843bd2904 ]---
      
      Since the driver is using phylib (which is doing netif_carrier_on/off()),
      we should simply remove netif_tx_schedule_all() from adjust_link().
      Signed-off-by: default avatarAnton Vorontsov <avorontsov@ru.mvista.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      ebbdbd7c
    • Anton Vorontsov's avatar
      gianfar: do not touch net queue in adjust_link phylib callback · afc07946
      Anton Vorontsov authored
      If the net queue has not been started, we'll get this nice oops
      and non-working ethernet:
      
      PHY: 0:01 - Link is Up - 1000/Full
      ------------[ cut here ]------------
      kernel BUG at net/core/dev.c:1328!
      Oops: Exception in kernel mode, sig: 5 [#1]
      MPC837x RDB
      Modules linked in:
      NIP: c02544a0 LR: c01a17d0 CTR: c01a16ac
      REGS: cf837e40 TRAP: 0700   Not tainted  (2.6.26-05253-g14b395e3)
      MSR: 00021032 <ME,IR,DR>  CR: 22042044  XER: 00000000
      TASK = cf819400[5] 'events/0' THREAD: cf836000
      GPR00: c01a17d0 cf837ef0 cf819400 c03d8d08 cf8469a0 00000064 00000000 00000000
      GPR08: c03d8d08 00000001 00000001 cf899ba0 22044044 00000000 0fffd000 00000000
      GPR16: 0fff3028 0fff6cf0 00000000 0fff8390 0ff494a0 00000004 00000000 00000000
      GPR24: c0361a00 00001058 cf9f6600 00009032 cf846800 cf846b80 00000001 00000014
      NIP [c02544a0] __netif_schedule+0x28/0x8c
      LR [c01a17d0] adjust_link+0x124/0x1cc
      Call Trace:
      [cf837ef0] [c03fb3a0] 0xc03fb3a0 (unreliable)
      [cf837f10] [c01a17d0] adjust_link+0x124/0x1cc
      [cf837f40] [c01a8e28] phy_state_machine+0x2e0/0x448
      [cf837f60] [c0040254] run_workqueue+0xc8/0x168
      [cf837f90] [c00408d8] worker_thread+0x70/0xd0
      [cf837fd0] [c0044630] kthread+0x48/0x84
      [cf837ff0] [c0012610] kernel_thread+0x44/0x60
      Instruction dump:
      7c0803a6 4e800020 3d20c03e 9421ffe0 7c0802a6 7c681b78 39298d08 7c694a78
      7d290034 90010024 bfa10014 5529d97e <0f090000> 39600002 38030024 7d200028
      ---[ end trace 13dfd73ee42d0c30 ]---
      
      Since the driver is using phylib (which is doing netif_carrier_on/off()),
      we should simply remove netif_tx_schedule_all() from adjust_link().
      Signed-off-by: default avatarAnton Vorontsov <avorontsov@ru.mvista.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      afc07946
    • David S. Miller's avatar
      atl1: Do not wake queue before queue has been started. · 39d48157
      David S. Miller authored
      Based upon a bug report by Alexey Dobriyan, the patch is
      also tested by him and confirmed to fix the problem.
      
      Packet flow during link state events should not be done by
      waking and stopping the TX queue anyways, that is handled
      transparently by netif_carrier_{on,off}().
      
      So, remove the netif_{wake,stop}_queue() calls in the link
      check code, and add the necessary netif_start_queue() call
      to atl1_up().
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      39d48157
    • Ingo Molnar's avatar
      2e2dcc76
    • Ingo Molnar's avatar
      Merge branches 'x86/urgent', 'x86/amd-iommu', 'x86/apic', 'x86/cleanups',... · acee709c
      Ingo Molnar authored
      Merge branches 'x86/urgent', 'x86/amd-iommu', 'x86/apic', 'x86/cleanups', 'x86/core', 'x86/cpu', 'x86/fixmap', 'x86/gart', 'x86/kprobes', 'x86/memtest', 'x86/modules', 'x86/nmi', 'x86/pat', 'x86/reboot', 'x86/setup', 'x86/step', 'x86/unify-pci', 'x86/uv', 'x86/xen' and 'xen-64bit' into x86/for-linus
      acee709c
    • Ingo Molnar's avatar
      Merge branch 'linus' into xen-64bit · e66d90fb
      Ingo Molnar authored
      e66d90fb
    • Ingo Molnar's avatar
      1c29dd9a
    • Yinghai Lu's avatar
      7edf8891
    • Yinghai Lu's avatar
      x86: use setup_clear_cpu_cap() when disabling the lapic · 9175fc06
      Yinghai Lu authored
      ... so don't need to call clear_cpu_cap again in early_identify_cpu,
      and could use cleared_cpu_caps like other places.
      Signed-off-by: default avatarYinghai Lu <yhlu.kernel@gmail.com>
      Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
      9175fc06
    • Milan Broz's avatar
      dm crypt: add merge · d41e26b9
      Milan Broz authored
      This patch implements biovec merge function for crypt target.
      
      If the underlying device has merge function defined, call it.
      If not, keep precomputed value.
      Signed-off-by: default avatarMilan Broz <mbroz@redhat.com>
      Signed-off-by: default avatarAlasdair G Kergon <agk@redhat.com>
      d41e26b9
    • Milan Broz's avatar
      dm table: remove merge_bvec sector restriction · 9980c638
      Milan Broz authored
      Remove max_sector restriction - merge function replaced it.
      Signed-off-by: default avatarMilan Broz <mbroz@redhat.com>
      Signed-off-by: default avatarAlasdair G Kergon <agk@redhat.com>
      9980c638
    • Milan Broz's avatar
      dm: linear add merge · 7bc3447b
      Milan Broz authored
      This patch implements biovec merge function for linear target.
      
      If the underlying device has merge function defined, call it.
      If not, keep precomputed value.
      Signed-off-by: default avatarMilan Broz <mbroz@redhat.com>
      Signed-off-by: default avatarAlasdair G Kergon <agk@redhat.com>
      7bc3447b
    • Milan Broz's avatar
      dm: introduce merge_bvec_fn · f6fccb12
      Milan Broz authored
      Introduce a bvec merge function for device mapper devices
      for dynamic size restrictions.
      
      This code ensures the requested biovec lies within a single
      target and then calls a target-specific function to check
      against any constraints imposed by underlying devices.
      Signed-off-by: default avatarMilan Broz <mbroz@redhat.com>
      Signed-off-by: default avatarAlasdair G Kergon <agk@redhat.com>
      f6fccb12
    • Mikulas Patocka's avatar
      dm snapshot: use per device mempools · 92e86812
      Mikulas Patocka authored
      Change snapshot per-module mempool to per-device mempool.
      
      Per-module mempools could cause a deadlock if multiple
      snapshot devices are stacked above each other.
      Signed-off-by: default avatarMikulas Patocka <mpatocka@redhat.com>
      Signed-off-by: default avatarAlasdair G Kergon <agk@redhat.com>
      92e86812
    • Mikulas Patocka's avatar
      dm snapshot: fix race during exception creation · a8d41b59
      Mikulas Patocka authored
      Fix a race condition that returns incorrect data when a write causes an
      exception to be allocated whilst a read is still in flight.
      
      The race condition happens as follows:
      * A read to non-reallocated sector in the snapshot is submitted so that the
        read is routed to the original device.
      * A write to the original device is submitted. The write causes an exception
        that reallocates the block.  The write proceeds.
      * The original read is dequeued and reads the wrong data.
      
      This race can be triggered with CFQ scheduler and one thread writing and
      multiple threads reading simultaneously.
      
      (This patch relies upon the earlier dm-kcopyd-per-device.patch to avoid a
      deadlock.)
      Signed-off-by: default avatarMikulas Patocka <mpatocka@redhat.com>
      Signed-off-by: default avatarAlasdair G Kergon <agk@redhat.com>
      a8d41b59
    • Mikulas Patocka's avatar
      dm snapshot: track snapshot reads · cd45daff
      Mikulas Patocka authored
      Whenever a snapshot read gets mapped through to the origin, track it in
      a per-snapshot hash table indexed by chunk number, using memory allocated
      from a new per-snapshot mempool.
      
      We need to track these reads to avoid race conditions which will be fixed
      by patches that follow.
      Signed-off-by: default avatarMikulas Patocka <mpatocka@redhat.com>
      Signed-off-by: default avatarAlasdair G Kergon <agk@redhat.com>
      cd45daff
    • Alasdair G Kergon's avatar
      dm mpath: fix test for reinstate_path · def052d2
      Alasdair G Kergon authored
      Fix test for reinstate_path method before attempting to use it.
      Signed-off-by: default avatarAlasdair G Kergon <agk@redhat.com>
      Cc: Julia Lawall <julia@diku.dk>
      def052d2
    • Mikulas Patocka's avatar
      dm mpath: return parameter error · 148acff6
      Mikulas Patocka authored
      Return a specific error message if there are an invalid number of multipath
      arguments.
      
      This invalid command returns an "Unknown error" because the ti->error field is
      not set
      
      dmsetup create --table '0 2 multipath 0 0 1 1 round-robin 0 1 1 /dev/sdh' mpath0
      Signed-off-by: default avatarMikulas Patocka <mpatocka@redhat.com>
      Signed-off-by: default avatarAlasdair G Kergon <agk@redhat.com>
      148acff6