1. 13 May, 2015 1 commit
  2. 12 May, 2015 7 commits
  3. 08 May, 2015 2 commits
  4. 07 May, 2015 7 commits
  5. 05 May, 2015 4 commits
  6. 04 May, 2015 8 commits
    • Daniel Vetter's avatar
      drm/atomic-helper: Really recover pre-atomic plane/cursor behavior · 3671c580
      Daniel Vetter authored
      I've fumbled this in
      
      commit f02ad907
      Author: Daniel Vetter <daniel.vetter@ffwll.ch>
      Date:   Thu Jan 22 16:36:23 2015 +0100
      
          drm/atomic-helpers: Recover full cursor plane behaviour
      
      and accidentally put the assignment for legacy_cursor_upate after the
      atomic commit, where it is pretty useless.
      Reported-by: default avatarMaarten Lankhorst <maarten.lankhorst@linux.intel.com>
      Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
      Signed-off-by: default avatarDaniel Vetter <daniel.vetter@intel.com>
      3671c580
    • Mario Kleiner's avatar
      drm/qxl: Fix qxl_noop_get_vblank_counter() · 337eb43c
      Mario Kleiner authored
      This breaks under the vblank timestamp cleanup patch
      by Daniel Vetter. Also it is pointless to return anything
      but zero (or any other constant) if the function doesn't
      actually query a hw vblank counter. The bogus return of
      the current drm vblank counter via direct readout or via
      drm_vblank_count() is found in many of the new kms drivers,
      but it does exactly nothing different from returning any
      arbitrary constant - it's a no operation.
      
      Let's simply return 0 - Easy and fast.
      Signed-off-by: default avatarMario Kleiner <mario.kleiner.de@gmail.com>
      Cc: Dave Airlie <airlied@redhat.com>
      Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
      337eb43c
    • Mario Kleiner's avatar
      drm: Zero out invalid vblank timestamp in drm_update_vblank_count. (v2) · d66a1e38
      Mario Kleiner authored
      Since commit 844b03f2 we make
      sure that after vblank irq off, we return the last valid
      (vblank count, vblank timestamp) pair to clients, e.g., during
      modesets, which is good.
      
      An overlooked side effect of that commit for kms drivers without
      support for precise vblank timestamping is that at vblank irq
      enable, when we update the vblank counter from the hw counter, we
      can't update the corresponding vblank timestamp, so now we have a
      totally mismatched timestamp for the new count to confuse clients.
      
      Restore old client visible behaviour from before Linux 3.18, but
      zero out the timestamp at vblank counter update (instead of disable
      as in original implementation) if we can't generate a meaningful
      timestamp immediately for the new vblank counter. This will fix
      this regression, so callers know they need to retry again later
      if they need a valid timestamp, but at the same time preserves
      the improvements made in the commit mentioned above.
      
      v2: Rebased on top of Daniel Vetter's fixup and documentation
          patch for timestamp updates. Drop request for stable kernel
          backport as this would be more difficult, unless the original
          patch would get applied to stable kernels.
      Signed-off-by: default avatarMario Kleiner <mario.kleiner.de@gmail.com>
      Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
      Cc: Daniel Vetter <daniel@ffwll.ch>
      Cc: Dave Airlie <airlied@redhat.com>
      Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
      d66a1e38
    • Mario Kleiner's avatar
      drm: Prevent invalid use of vblank_disable_immediate. (v2) · 5a8b21b2
      Mario Kleiner authored
      For a kms driver to support immediate disable of vblank
      irq's reliably without introducing off by one errors or
      other mayhem for clients, it must not only support a
      hardware vblank counter query, but also high precision
      vblank timestamping, so vblank count and timestamp can be
      instantaneously reinitialzed to valid values. Additionally
      the exposed hardware counter must behave as if it is
      incrementing at leading edge of vblank to avoid off by
      one errors during reinitialization of the counter while
      the display happens to be inside or close to vblank.
      
      Check during drm_vblank_init that a driver which claims to
      be capable of vblank_disable_immediate at least supports
      high precision timestamping and prevent use of instant
      disable if that isn't present as a minimum requirement.
      
      v2: Changed from DRM_ERROR to DRM_INFO and made message
          more clear, as suggested by Michel Dänzer.
      Signed-off-by: default avatarMario Kleiner <mario.kleiner.de@gmail.com>
      Reviewed-by: default avatarMichel Dänzer <michel.daenzer@amd.com>
      Cc: Dave Airlie <airlied@redhat.com>
      Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
      5a8b21b2
    • Daniel Vetter's avatar
      drm/vblank: Fixup and document timestamp update/read barriers · 99264a61
      Daniel Vetter authored
      This was a bit too much cargo-culted, so lets make it solid:
      - vblank->count doesn't need to be an atomic, writes are always done
        under the protection of dev->vblank_time_lock. Switch to an unsigned
        long instead and update comments. Note that atomic_read is just a
        normal read of a volatile variable, so no need to audit all the
        read-side access specifically.
      
      - The barriers for the vblank counter seqlock weren't complete: The
        read-side was missing the first barrier between the counter read and
        the timestamp read, it only had a barrier between the ts and the
        counter read. We need both.
      
      - Barriers weren't properly documented. Since barriers only work if
        you have them on boths sides of the transaction it's prudent to
        reference where the other side is. To avoid duplicating the
        write-side comment 3 times extract a little store_vblank() helper.
        In that helper also assert that we do indeed hold
        dev->vblank_time_lock, since in some cases the lock is acquired a
        few functions up in the callchain.
      
      Spotted while reviewing a patch from Chris Wilson to add a fastpath to
      the vblank_wait ioctl.
      
      v2: Add comment to better explain how store_vblank works, suggested by
      Chris.
      
      v3: Peter noticed that as-is the 2nd smp_wmb is redundant with the
      implicit barrier in the spin_unlock. But that can only be proven by
      auditing all callers and my point in extracting this little helper was
      to localize all the locking into just one place. Hence I think that
      additional optimization is too risky.
      
      Cc: Chris Wilson <chris@chris-wilson.co.uk>
      Cc: Mario Kleiner <mario.kleiner.de@gmail.com>
      Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
      Cc: Michel Dänzer <michel@daenzer.net>
      Cc: Peter Hurley <peter@hurleysoftware.com>
      Reviewed-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
      Reviewed-and-tested-by: default avatarMario Kleiner <mario.kleiner.de@gmail.com>
      Signed-off-by: default avatarDaniel Vetter <daniel.vetter@intel.com>
      99264a61
    • Linus Torvalds's avatar
      Linux 4.1-rc2 · 5ebe6afa
      Linus Torvalds authored
      5ebe6afa
    • Linus Torvalds's avatar
      Merge tag 'for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 · 8663da2c
      Linus Torvalds authored
      Pull ext4 fixes from Ted Ts'o:
       "Some miscellaneous bug fixes and some final on-disk and ABI changes
        for ext4 encryption which provide better security and performance"
      
      * tag 'for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
        ext4: fix growing of tiny filesystems
        ext4: move check under lock scope to close a race.
        ext4: fix data corruption caused by unwritten and delayed extents
        ext4 crypto: remove duplicated encryption mode definitions
        ext4 crypto: do not select from EXT4_FS_ENCRYPTION
        ext4 crypto: add padding to filenames before encrypting
        ext4 crypto: simplify and speed up filename encryption
      8663da2c
    • Linus Torvalds's avatar
      Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux · 101a6fd3
      Linus Torvalds authored
      Pull drm fixes from Dave Airlie:
       "One intel fix, one rockchip fix, and a bunch of radeon fixes for some
        regressions from audio rework and vm stability"
      
      * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
        drm/i915/chv: Implement WaDisableShadowRegForCpd
        drm/radeon: fix userptr return value checking (v2)
        drm/radeon: check new address before removing old one
        drm/radeon: reset BOs address after clearing it.
        drm/radeon: fix lockup when BOs aren't part of the VM on release
        drm/radeon: add SI DPM quirk for Sapphire R9 270 Dual-X 2G GDDR5
        drm/radeon: adjust pll when audio is not enabled
        drm/radeon: only enable audio streams if the monitor supports it
        drm/radeon: only mark audio as connected if the monitor supports it (v3)
        drm/radeon/audio: don't enable packets until the end
        drm/radeon: drop dce6_dp_enable
        drm/radeon: fix ordering of AVI packet setup
        drm/radeon: Use drm_calloc_ab for CS relocs
        drm/rockchip: fix error check when getting irq
        MAINTAINERS: add entry for Rockchip drm drivers
      101a6fd3
  7. 03 May, 2015 8 commits
    • Dave Airlie's avatar
      Merge tag 'drm-intel-fixes-2015-04-30' of git://anongit.freedesktop.org/drm-intel into drm-fixes · 71aee819
      Dave Airlie authored
      Just a single intel fix
      * tag 'drm-intel-fixes-2015-04-30' of git://anongit.freedesktop.org/drm-intel:
        drm/i915/chv: Implement WaDisableShadowRegForCpd
      71aee819
    • Dave Airlie's avatar
      Merge branch 'drm-next0420' of https://github.com/markyzq/kernel-drm-rockchip into drm-fixes · df9ebeb2
      Dave Airlie authored
      one fix and maintainers update
      * 'drm-next0420' of https://github.com/markyzq/kernel-drm-rockchip:
        drm/rockchip: fix error check when getting irq
        MAINTAINERS: add entry for Rockchip drm drivers
      df9ebeb2
    • Linus Torvalds's avatar
      Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi · 61f06db0
      Linus Torvalds authored
      Pull SCSI fixes from James Bottomley:
       "This is three logical fixes (as 5 patches).
      
        The 3ware class of drivers were causing an oops with multiqueue by
        tearing down the command mappings after completing the command (where
        the variables in the command used to tear down the mapping were
        no-longer valid).  There's also a fix for the qnap iscsi target which
        was choking on us sending it commands that were too long and a fix for
        the reworked aha1542 allocating GFP_KERNEL under a lock"
      
      * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
        3w-9xxx: fix command completion race
        3w-xxxx: fix command completion race
        3w-sas: fix command completion race
        aha1542: Allocate memory before taking a lock
        SCSI: add 1024 max sectors black list flag
      61f06db0
    • Linus Torvalds's avatar
      Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma · 33332224
      Linus Torvalds authored
      Pull slave dmaengine fixes from Vinod Koul:
       "Here are the fixes in dmaengine subsystem for rc2:
      
         - privatecnt fix for slave dma request API by Christopher
      
         - warn fix for PM ifdef in usb-dmac by Geert
      
         - fix hardware dependency for xgene by Jean"
      
      * 'next' of git://git.infradead.org/users/vkoul/slave-dma:
        dmaengine: increment privatecnt when using dma_get_any_slave_channel
        dmaengine: xgene: Set hardware dependency
        dmaengine: usb-dmac: Protect PM-only functions to kill warning
      33332224
    • Linus Torvalds's avatar
      Merge tag 'powerpc-4.1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux · 180d89f6
      Linus Torvalds authored
      Pull powerpc fixes from Michael Ellerman:
       - build fix for SMP=n in book3s_xics.c
       - fix for Daniel's pci_controller_ops on powernv.
       - revert the TM syscall abort patch for now.
       - CPU affinity fix from Nathan.
       - two EEH fixes from Gavin.
       - fix for CR corruption from Sam.
       - selftest build fix.
      
      * tag 'powerpc-4.1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux:
        powerpc/powernv: Restore non-volatile CRs after nap
        powerpc/eeh: Delay probing EEH device during hotplug
        powerpc/eeh: Fix race condition in pcibios_set_pcie_reset_state()
        powerpc/pseries: Correct cpu affinity for dlpar added cpus
        selftests/powerpc: Fix the pmu install rule
        Revert "powerpc/tm: Abort syscalls in active transactions"
        powerpc/powernv: Fix early pci_controller_ops loading.
        powerpc/kvm: Fix SMP=n build error in book3s_xics.c
      180d89f6
    • Jan Kara's avatar
      ext4: fix growing of tiny filesystems · 2c869b26
      Jan Kara authored
      The estimate of necessary transaction credits in ext4_flex_group_add()
      is too pessimistic. It reserves credit for sb, resize inode, and resize
      inode dindirect block for each group added in a flex group although they
      are always the same block and thus it is enough to account them only
      once. Also the number of modified GDT block is overestimated since we
      fit EXT4_DESC_PER_BLOCK(sb) descriptors in one block.
      
      Make the estimation more precise. That reduces number of requested
      credits enough that we can grow 20 MB filesystem (which has 1 MB
      journal, 79 reserved GDT blocks, and flex group size 16 by default).
      Signed-off-by: default avatarJan Kara <jack@suse.cz>
      Signed-off-by: default avatarTheodore Ts'o <tytso@mit.edu>
      Reviewed-by: default avatarEric Sandeen <sandeen@redhat.com>
      2c869b26
    • Davide Italiano's avatar
      ext4: move check under lock scope to close a race. · 280227a7
      Davide Italiano authored
      fallocate() checks that the file is extent-based and returns
      EOPNOTSUPP in case is not. Other tasks can convert from and to
      indirect and extent so it's safe to check only after grabbing
      the inode mutex.
      Signed-off-by: default avatarDavide Italiano <dccitaliano@gmail.com>
      Signed-off-by: default avatarTheodore Ts'o <tytso@mit.edu>
      Cc: stable@vger.kernel.org
      280227a7
    • Lukas Czerner's avatar
      ext4: fix data corruption caused by unwritten and delayed extents · d2dc317d
      Lukas Czerner authored
      Currently it is possible to lose whole file system block worth of data
      when we hit the specific interaction with unwritten and delayed extents
      in status extent tree.
      
      The problem is that when we insert delayed extent into extent status
      tree the only way to get rid of it is when we write out delayed buffer.
      However there is a limitation in the extent status tree implementation
      so that when inserting unwritten extent should there be even a single
      delayed block the whole unwritten extent would be marked as delayed.
      
      At this point, there is no way to get rid of the delayed extents,
      because there are no delayed buffers to write out. So when a we write
      into said unwritten extent we will convert it to written, but it still
      remains delayed.
      
      When we try to write into that block later ext4_da_map_blocks() will set
      the buffer new and delayed and map it to invalid block which causes
      the rest of the block to be zeroed loosing already written data.
      
      For now we can fix this by simply not allowing to set delayed status on
      written extent in the extent status tree. Also add WARN_ON() to make
      sure that we notice if this happens in the future.
      
      This problem can be easily reproduced by running the following xfs_io.
      
      xfs_io -f -c "pwrite -S 0xaa 4096 2048" \
                -c "falloc 0 131072" \
                -c "pwrite -S 0xbb 65536 2048" \
                -c "fsync" /mnt/test/fff
      
      echo 3 > /proc/sys/vm/drop_caches
      xfs_io -c "pwrite -S 0xdd 67584 2048" /mnt/test/fff
      
      This can be theoretically also reproduced by at random by running fsx,
      but it's not very reliable, though on machines with bigger page size
      (like ppc) this can be seen more often (especially xfstest generic/127)
      Signed-off-by: default avatarLukas Czerner <lczerner@redhat.com>
      Signed-off-by: default avatarTheodore Ts'o <tytso@mit.edu>
      Cc: stable@vger.kernel.org
      d2dc317d
  8. 02 May, 2015 3 commits
    • Chanho Park's avatar
      ext4 crypto: remove duplicated encryption mode definitions · 9402bdca
      Chanho Park authored
      This patch removes duplicated encryption modes which were already in
      ext4.h. They were duplicated from commit 3edc18d8 and commit f542fb.
      
      Cc: Theodore Ts'o <tytso@mit.edu>
      Cc: Michael Halcrow <mhalcrow@google.com>
      Cc: Andreas Dilger <adilger.kernel@dilger.ca>
      Signed-off-by: default avatarChanho Park <chanho61.park@samsung.com>
      Signed-off-by: default avatarTheodore Ts'o <tytso@mit.edu>
      9402bdca
    • Herbert Xu's avatar
      ext4 crypto: do not select from EXT4_FS_ENCRYPTION · fb63e548
      Herbert Xu authored
      This patch adds a tristate EXT4_ENCRYPTION to do the selections
      for EXT4_FS_ENCRYPTION because selecting from a bool causes all
      the selected options to be built-in, even if EXT4 itself is a
      module.
      Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
      Signed-off-by: default avatarTheodore Ts'o <tytso@mit.edu>
      fb63e548
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net · 6c3c1eb3
      Linus Torvalds authored
      Pull networking fixes from David Miller:
      
       1) Receive packet length needs to be adjust by 2 on RX to accomodate
          the two padding bytes in altera_tse driver.  From Vlastimil Setka.
      
       2) If rx frame is dropped due to out of memory in macb driver, we leave
          the receive ring descriptors in an undefined state.  From Punnaiah
          Choudary Kalluri
      
       3) Some netlink subsystems erroneously signal NLM_F_MULTI.  That is
          only for dumps.  Fix from Nicolas Dichtel.
      
       4) Fix mis-use of raw rt->rt_pmtu value in ipv4, one must always go via
          the ipv4_mtu() helper.  From Herbert Xu.
      
       5) Fix null deref in bridge netfilter, and miscalculated lengths in
          jump/goto nf_tables verdicts.  From Florian Westphal.
      
       6) Unhash ping sockets properly.
      
       7) Software implementation of BPF divide did 64/32 rather than 64/64
          bit divide.  The JITs got it right.  Fix from Alexei Starovoitov.
      
      * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (30 commits)
        ipv4: Missing sk_nulls_node_init() in ping_unhash().
        net: fec: Fix RGMII-ID mode
        net/mlx4_en: Schedule napi when RX buffers allocation fails
        netxen_nic: use spin_[un]lock_bh around tx_clean_lock
        net/mlx4_core: Fix unaligned accesses
        mlx4_en: Use correct loop cursor in error path.
        cxgb4: Fix MC1 memory offset calculation
        bnx2x: Delay during kdump load
        net: Fix Kernel Panic in bonding driver debugfs file: rlb_hash_table
        net: dsa: Fix scope of eeprom-length property
        net: macb: Fix race condition in driver when Rx frame is dropped
        hv_netvsc: Fix a bug in netvsc_start_xmit()
        altera_tse: Correct rx packet length
        mlx4: Fix tx ring affinity_mask creation
        tipc: fix problem with parallel link synchronization mechanism
        tipc: remove wrong use of NLM_F_MULTI
        bridge/nl: remove wrong use of NLM_F_MULTI
        bridge/mdb: remove wrong use of NLM_F_MULTI
        net: sched: act_connmark: don't zap skb->nfct
        trivial: net: systemport: bcmsysport.h: fix 0x0x prefix
        ...
      6c3c1eb3