1. 09 Nov, 2012 1 commit
  2. 07 Nov, 2012 4 commits
    • Konrad Rzeszutek Wilk's avatar
      xen/arm: Fix compile errors when drivers are compiled as modules. · 911dec0d
      Konrad Rzeszutek Wilk authored
      We end up with:
      
      ERROR: "HYPERVISOR_event_channel_op" [drivers/xen/xen-gntdev.ko] undefined!
      ERROR: "privcmd_call" [drivers/xen/xen-privcmd.ko] undefined!
      ERROR: "HYPERVISOR_grant_table_op" [drivers/net/xen-netback/xen-netback.ko] undefined!
      
      and this patch exports said function (which is implemented in hypercall.S).
      Acked-by: default avatarStefano Stabellini <stefano.stabellini@eu.citrix.com>
      Acked-by: default avatarIan Campbell <ian.campbell@citrix.com>
      Signed-off-by: default avatarKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      911dec0d
    • Konrad Rzeszutek Wilk's avatar
      xen/generic: Disable fallback build on ARM. · 6bf926dd
      Konrad Rzeszutek Wilk authored
      As there is no need for it (the fallback code is for older
      hypervisors and they only run under x86), and also b/c
      we get:
      
      drivers/xen/fallback.c: In function 'xen_event_channel_op_compat':
      drivers/xen/fallback.c:10:19: error: storage size of 'op' isn't known
      drivers/xen/fallback.c:15:2: error: implicit declaration of function '_hypercall1' [-Werror=implicit-function-declaration]
      drivers/xen/fallback.c:15:19: error: expected expression before 'int'
      drivers/xen/fallback.c:18:7: error: 'EVTCHNOP_close' undeclared (first use in this function)
      drivers/xen/fallback.c:18:7: note: each undeclared identifier is reported only once for each function it appears in
      .. and more
      
      [v1: Moved the enablement to be covered by CONFIG_X86 per Ian's suggestion]
      Signed-off-by: default avatarKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      6bf926dd
    • Mojiong Qiu's avatar
      xen/events: fix RCU warning, or Call idle notifier after irq_enter() · 772aebce
      Mojiong Qiu authored
      exit_idle() should be called after irq_enter(), otherwise it throws:
      
      [ INFO: suspicious RCU usage. ]
      3.6.5 #1 Not tainted
      -------------------------------
      include/linux/rcupdate.h:725 rcu_read_lock() used illegally while idle!
      
      other info that might help us debug this:
      
      RCU used illegally from idle CPU!
      rcu_scheduler_active = 1, debug_locks = 1
      RCU used illegally from extended quiescent state!
      1 lock held by swapper/0/0:
       #0:  (rcu_read_lock){......}, at: [<ffffffff810e9fe0>] __atomic_notifier_call_chain+0x0/0x140
      
      stack backtrace:
      Pid: 0, comm: swapper/0 Not tainted 3.6.5 #1
      Call Trace:
       <IRQ>  [<ffffffff811259a2>] lockdep_rcu_suspicious+0xe2/0x130
       [<ffffffff810ea10c>] __atomic_notifier_call_chain+0x12c/0x140
       [<ffffffff810e9fe0>] ? atomic_notifier_chain_unregister+0x90/0x90
       [<ffffffff811216cd>] ? trace_hardirqs_off+0xd/0x10
       [<ffffffff810ea136>] atomic_notifier_call_chain+0x16/0x20
       [<ffffffff810777c3>] exit_idle+0x43/0x50
       [<ffffffff81568865>] xen_evtchn_do_upcall+0x25/0x50
       [<ffffffff81aa690e>] xen_do_hypervisor_callback+0x1e/0x30
       <EOI>  [<ffffffff810013aa>] ? hypercall_page+0x3aa/0x1000
       [<ffffffff810013aa>] ? hypercall_page+0x3aa/0x1000
       [<ffffffff81061540>] ? xen_safe_halt+0x10/0x20
       [<ffffffff81075cfa>] ? default_idle+0xba/0x570
       [<ffffffff810778af>] ? cpu_idle+0xdf/0x140
       [<ffffffff81a4d881>] ? rest_init+0x135/0x144
       [<ffffffff81a4d74c>] ? csum_partial_copy_generic+0x16c/0x16c
       [<ffffffff82520c45>] ? start_kernel+0x3db/0x3e8
       [<ffffffff8252066a>] ? repair_env_string+0x5a/0x5a
       [<ffffffff82520356>] ? x86_64_start_reservations+0x131/0x135
       [<ffffffff82524aca>] ? xen_start_kernel+0x465/0x46
      
      Git commit 98ad1cc1
      Author: Frederic Weisbecker <fweisbec@gmail.com>
      Date:   Fri Oct 7 18:22:09 2011 +0200
      
          x86: Call idle notifier after irq_enter()
      
      did this, but it missed the Xen code.
      Signed-off-by: default avatarMojiong Qiu <mjqiu@tencent.com>
      Cc: stable@vger.kernel.org # from 3.3 and newer.
      Signed-off-by: default avatarKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      772aebce
    • Konrad Rzeszutek Wilk's avatar
      xen/hvm: If we fail to fetch an HVM parameter print out which flag it is. · 6d877e6b
      Konrad Rzeszutek Wilk authored
      Makes it easier to troubleshoot in the field.
      Acked-by: default avatarIan Campbell <ian.campbell@citrix.com>
      [v1: Use macro per Ian's suggestion]
      Signed-off-by: default avatarKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      6d877e6b
  3. 04 Nov, 2012 1 commit
    • Jan Beulich's avatar
      xen/hypercall: fix hypercall fallback code for very old hypervisors · cf47a83f
      Jan Beulich authored
      While copying the argument structures in HYPERVISOR_event_channel_op()
      and HYPERVISOR_physdev_op() into the local variable is sufficiently
      safe even if the actual structure is smaller than the container one,
      copying back eventual output values the same way isn't: This may
      collide with on-stack variables (particularly "rc") which may change
      between the first and second memcpy() (i.e. the second memcpy() could
      discard that change).
      
      Move the fallback code into out-of-line functions, and handle all of
      the operations known by this old a hypervisor individually: Some don't
      require copying back anything at all, and for the rest use the
      individual argument structures' sizes rather than the container's.
      Reported-by: default avatarDan Carpenter <dan.carpenter@oracle.com>
      Signed-off-by: default avatarJan Beulich <jbeulich@suse.com>
      [v2: Reduce #define/#undef usage in HYPERVISOR_physdev_op_compat().]
      [v3: Fix compile errors when modules use said hypercalls]
      [v4: Add xen_ prefix to the HYPERCALL_..]
      [v5: Alter the name and only EXPORT_SYMBOL_GPL one of them]
      Signed-off-by: default avatarKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      cf47a83f
  4. 31 Oct, 2012 1 commit
  5. 30 Oct, 2012 6 commits
  6. 19 Oct, 2012 16 commits
  7. 14 Oct, 2012 6 commits
    • Linus Torvalds's avatar
      Linux 3.7-rc1 · ddffeb8c
      Linus Torvalds authored
      ddffeb8c
    • Linus Torvalds's avatar
      Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus · a5ef3f7d
      Linus Torvalds authored
      Pull MIPS update from Ralf Baechle:
       "Cleanups and fixes for breakage that occured earlier during this merge
        phase.  Also a few patches that didn't make the first pull request.
        Of those is the Alchemy work that merges code for many of the SOCs and
        evaluation boards thus among other code shrinkage, reduces the number
        of MIPS defconfigs by 5."
      
      * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (22 commits)
        MIPS: SNI: Switch RM400 serial to SCCNXP driver
        MIPS: Remove unused empty_bad_pmd_table[] declaration.
        MIPS: MT: Remove kspd.
        MIPS: Malta: Fix section mismatch.
        MIPS: asm-offset.c: Delete unused irq_cpustat_t struct offsets.
        MIPS: Alchemy: Merge PB1100/1500 support into DB1000 code.
        MIPS: Alchemy: merge PB1550 support into DB1550 code
        MIPS: Alchemy: Single kernel for DB1200/1300/1550
        MIPS: Optimize TLB refill for RI/XI configurations.
        MIPS: proc: Cleanup printing of ASEs.
        MIPS: Hardwire detection of DSP ASE Rev 2 for systems, as required.
        MIPS: Add detection of DSP ASE Revision 2.
        MIPS: Optimize pgd_init and pmd_init
        MIPS: perf: Add perf functionality for BMIPS5000
        MIPS: perf: Split the Kconfig option CONFIG_MIPS_MT_SMP
        MIPS: perf: Remove unnecessary #ifdef
        MIPS: perf: Add cpu feature bit for PCI (performance counter interrupt)
        MIPS: perf: Change the "mips_perf_event" table unsupported indicator.
        MIPS: Align swapper_pg_dir to 64K for better TLB Refill code.
        vmlinux.lds.h: Allow architectures to add sections to the front of .bss
        ...
      a5ef3f7d
    • Linus Torvalds's avatar
      Merge branch 'modules-next' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux · d25282d1
      Linus Torvalds authored
      Pull module signing support from Rusty Russell:
       "module signing is the highlight, but it's an all-over David Howells frenzy..."
      
      Hmm "Magrathea: Glacier signing key". Somebody has been reading too much HHGTTG.
      
      * 'modules-next' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: (37 commits)
        X.509: Fix indefinite length element skip error handling
        X.509: Convert some printk calls to pr_devel
        asymmetric keys: fix printk format warning
        MODSIGN: Fix 32-bit overflow in X.509 certificate validity date checking
        MODSIGN: Make mrproper should remove generated files.
        MODSIGN: Use utf8 strings in signer's name in autogenerated X.509 certs
        MODSIGN: Use the same digest for the autogen key sig as for the module sig
        MODSIGN: Sign modules during the build process
        MODSIGN: Provide a script for generating a key ID from an X.509 cert
        MODSIGN: Implement module signature checking
        MODSIGN: Provide module signing public keys to the kernel
        MODSIGN: Automatically generate module signing keys if missing
        MODSIGN: Provide Kconfig options
        MODSIGN: Provide gitignore and make clean rules for extra files
        MODSIGN: Add FIPS policy
        module: signature checking hook
        X.509: Add a crypto key parser for binary (DER) X.509 certificates
        MPILIB: Provide a function to read raw data into an MPI
        X.509: Add an ASN.1 decoder
        X.509: Add simple ASN.1 grammar compiler
        ...
      d25282d1
    • Matt Fleming's avatar
      x86, boot: Explicitly include autoconf.h for hostprogs · b6eea87f
      Matt Fleming authored
      The hostprogs need access to the CONFIG_* symbols found in
      include/generated/autoconf.h.  But commit abbf1590 ("UAPI: Partition
      the header include path sets and add uapi/ header directories") replaced
      $(LINUXINCLUDE) with $(USERINCLUDE) which doesn't contain the necessary
      include paths.
      
      This has the undesirable effect of breaking the EFI boot stub because
      the #ifdef CONFIG_EFI_STUB code in arch/x86/boot/tools/build.c is
      never compiled.
      
      It should also be noted that because $(USERINCLUDE) isn't exported by
      the top-level Makefile it's actually empty in arch/x86/boot/Makefile.
      
      Cc: H. Peter Anvin <hpa@zytor.com>
      Cc: Ingo Molnar <mingo@kernel.org>
      Acked-by: default avatarDavid Howells <dhowells@redhat.com>
      Signed-off-by: default avatarMatt Fleming <matt.fleming@intel.com>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      b6eea87f
    • Ingo Molnar's avatar
      perf: Fix UAPI fallout · 7d380c8f
      Ingo Molnar authored
      The UAPI commits forgot to test tooling builds such as tools/perf/,
      and this fixes the fallout.
      
      Manual conversion.
      Signed-off-by: default avatarIngo Molnar <mingo@kernel.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      7d380c8f
    • Linus Torvalds's avatar
      Merge branch 'late-for-linus' of git://git.linaro.org/people/rmk/linux-arm · 3d6ee36d
      Linus Torvalds authored
      Pull ARM update from Russell King:
       "This is the final round of stuff for ARM, left until the end of the
        merge window to reduce the number of conflicts.  This set contains the
        ARM part of David Howells UAPI changes, and a fix to the ordering of
        'select' statements in ARM Kconfig files (see the appropriate commit
        for why this happened - thanks to Andrew Morton for pointing out the
        problem.)
      
        I've left this as long as I dare for this window to avoid conflicts,
        and I regenerated the config patch yesterday, posting it to our
        mailing list for review and testing.  I have several acks which
        include successful test reports for it.
      
        However, today I notice we've got new conflicts with previously unseen
        code...  though that conflict should be trivial (it's my changes vs a
        one liner.)"
      
      * 'late-for-linus' of git://git.linaro.org/people/rmk/linux-arm:
        ARM: config: make sure that platforms are ordered by option string
        ARM: config: sort select statements alphanumerically
        UAPI: (Scripted) Disintegrate arch/arm/include/asm
      
      Fix up fairly conflict in arch/arm/Kconfig (the select re-organization
      vs recent addition of GENERIC_KERNEL_EXECVE)
      3d6ee36d
  8. 13 Oct, 2012 5 commits
    • Linus Torvalds's avatar
      Merge tag 'disintegrate-main-20121013' of git://git.infradead.org/users/dhowells/linux-headers · 0b381a28
      Linus Torvalds authored
      Pull UAPI disintegration for include/linux/{,byteorder/}*.h from David Howells:
       "The patches contained herein do the following:
      
       (1) Remove kernel-only stuff in linux/ppp-comp.h from the UAPI.  I checked
           this with Paul Mackerras before I created the patch and he suggested some
           extra bits to unexport.
      
       (2) Remove linux/blk_types.h entirely from the UAPI as none of it is userspace
           applicable, and remove from the UAPI that part of linux/fs.h that was the
           reason for linux/blk_types.h being exported in the first place.  I
           discussed this with Jens Axboe before creating the patch.
      
       (3) The big patch of the series to disintegrate include/linux/*.h as a unit.
           This could be split up, though there would be collisions in moving stuff
           between the two Kbuild files when the parts are merged as that file is
           sorted alphabetically rather than being grouped by subsystem.
      
           Of this set of headers, 17 files have changed in the UAPI exported region
           since the 4th and only 8 since the 9th so there isn't much change in this
           area - as one might expect.
      
           It should be pretty obvious and straightforward if it does come to fixing
           up: stuff in __KERNEL__ guards stays where it is and stuff outside moves
           to the same file in the include/uapi/linux/ directory.
      
           If a new file appears then things get a bit more complicated as the
           "headers +=" line has to move to include/uapi/linux/Kbuild.  Only one new
           file has appeared since the 9th and I judge this type of event relatively
           unlikely.
      
       (4) A patch to disintegrate include/linux/byteorder/*.h as a unit.
      
        Signed-off-by: David Howells <dhowells@redhat.com>"
      
      * tag 'disintegrate-main-20121013' of git://git.infradead.org/users/dhowells/linux-headers:
        UAPI: (Scripted) Disintegrate include/linux/byteorder
        UAPI: (Scripted) Disintegrate include/linux
        UAPI: Unexport linux/blk_types.h
        UAPI: Unexport part of linux/ppp-comp.h
      0b381a28
    • Linus Torvalds's avatar
      Merge tag 'disintegrate-spi-20121009' of git://git.infradead.org/users/dhowells/linux-headers · 034b5eeb
      Linus Torvalds authored
      Pull spi UAPI disintegration from David Howells:
       "This is to complete part of the Userspace API (UAPI) disintegration
        for which the preparatory patches were pulled recently.  After these
        patches, userspace headers will be segregated into:
      
              include/uapi/linux/.../foo.h
      
        for the userspace interface stuff, and:
      
              include/linux/.../foo.h
      
        for the strictly kernel internal stuff.
      Signed-off-by: default avatarDavid Howells <dhowells@redhat.com>
        Acked-by: Grant Likely <grant.likely@secretlab.ca>"
      
      * tag 'disintegrate-spi-20121009' of git://git.infradead.org/users/dhowells/linux-headers:
        UAPI: (Scripted) Disintegrate include/linux/spi
      034b5eeb
    • Linus Torvalds's avatar
      Merge tag 'openrisc-uapi' of git://openrisc.net/jonas/linux · 7c5a4734
      Linus Torvalds authored
      Pull OpenRISC uapi disintegration from Jonas Bonn:
       "OpenRISC UAPI disintegration work from David Howells"
      
      * tag 'openrisc-uapi' of git://openrisc.net/jonas/linux:
        UAPI: (Scripted) Disintegrate arch/openrisc/include/asm
      7c5a4734
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace · 09a9ad6a
      Linus Torvalds authored
      Pull user namespace compile fixes from Eric W Biederman:
       "This tree contains three trivial fixes.  One compiler warning, one
        thinko fix, and one build fix"
      
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace:
        btrfs: Fix compilation with user namespace support enabled
        userns: Fix posix_acl_file_xattr_userns gid conversion
        userns: Properly print bluetooth socket uids
      09a9ad6a
    • Linus Torvalds's avatar
      Merge tag 'md-3.7' of git://neil.brown.name/md · 9db90880
      Linus Torvalds authored
      Pull md updates from NeilBrown:
       - "discard" support, some dm-raid improvements and other assorted bits
         and pieces.
      
      * tag 'md-3.7' of git://neil.brown.name/md: (29 commits)
        md: refine reporting of resync/reshape delays.
        md/raid5: be careful not to resize_stripes too big.
        md: make sure manual changes to recovery checkpoint are saved.
        md/raid10: use correct limit variable
        md: writing to sync_action should clear the read-auto state.
        Subject: [PATCH] md:change resync_mismatches to atomic64_t to avoid races
        md/raid5: make sure to_read and to_write never go negative.
        md: When RAID5 is dirty, force reconstruct-write instead of read-modify-write.
        md/raid5: protect debug message against NULL derefernce.
        md/raid5: add some missing locking in handle_failed_stripe.
        MD: raid5 avoid unnecessary zero page for trim
        MD: raid5 trim support
        md/bitmap:Don't use IS_ERR to judge alloc_page().
        md/raid1: Don't release reference to device while handling read error.
        raid: replace list_for_each_continue_rcu with new interface
        add further __init annotations to crypto/xor.c
        DM RAID: Fix for "sync" directive ineffectiveness
        DM RAID: Fix comparison of index and quantity for "rebuild" parameter
        DM RAID: Add rebuild capability for RAID10
        DM RAID: Move 'rebuild' checking code to its own function
        ...
      9db90880