merge dentry_operations for root and non-root
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

here we actually *want* ->d_op for root; setting it allows to get rid
of kludge in v9fs_kill_super() since now we have proper ->d_release()
for root and don't need to call it manually.
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

->d_delete() doesn't matter for s_root anyway
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

either d_op instance would work for root, actually...
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

Coda ->d_revalidate() actually checks for root, ->d_delete() is irrelevant.
So we can use the same d_op for all coda dentries
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

switching it to s_d_op allows to kill the cgroup_lookup() kludge.
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

->d_op of root stays NULL these days on minixfs
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

wrong dentry dropped...
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

don't bother with lock_super() in fat_fill_super() callers, while
we are at it - there won't be any concurrency anyway.
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

switch to ->s_d_op; d_obtain_alias() will DTRT now
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (67 commits)
  cxgb4vf: recover from failure in cxgb4vf_open()
  netfilter: ebtables: make broute table work again
  netfilter: fix race in conntrack between dump_table and destroy
  ah: reload pointers to skb data after calling skb_cow_data()
  ah: update maximum truncated ICV length
  xfrm: check trunc_len in XFRMA_ALG_AUTH_TRUNC
  ehea: Increase the skb array usage
  net/fec: remove config FEC2 as it's used nowhere
  pcnet_cs: add new_id
  tcp: disallow bind() to reuse addr/port
  net/r8169: Update the function of parsing firmware
  net: ppp: use {get,put}_unaligned_be{16,32}
  CAIF: Fix IPv6 support in receive path for GPRS/3G
  arp: allow to invalidate specific ARP entries
  net_sched: factorize qdisc stats handling
  mlx4: Call alloc_etherdev to allocate RX and TX queues
  net: Add alloc_netdev_mqs function
  caif: don't set connection request param size before copying data
  cxgb4vf: fix mailbox data/control coherency domain race
  qlcnic: change module parameter permissions
  ...

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
  sparc64: Fix bootup regression due to perf init ordering.

* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (72 commits)
  powerpc/pseries: Fix build of topology stuff without CONFIG_NUMA
  powerpc/pseries: Fix VPHN build errors on non-SMP systems
  powerpc/83xx: add mpc8308_p1m DMA controller device-tree node
  powerpc/83xx: add DMA controller to mpc8308 device-tree node
  powerpc/512x: try to free dma descriptors in case of allocation failure
  powerpc/512x: add MPC8308 dma support
  powerpc/512x: fix the hanged dma transfer issue
  powerpc/512x: scatter/gather dma fix
  powerpc/powermac: Make auto-loading of therm_pm72 possible
  of/address: Use propper endianess in get_flags
  powerpc/pci: Use printf extension %pR for struct resource
  powerpc: Remove unnecessary casts of void ptr
  powerpc: Disable VPHN polling during a suspend operation
  powerpc/pseries: Poll VPA for topology changes and update NUMA maps
  powerpc: iommu: Add device name to iommu error printks
  powerpc: Record vma->phys_addr in ioremap()
  powerpc: Update compat_arch_ptrace
  powerpc: Fix PPC_PTRACE_SETHWDEBUG on PPC_BOOK3S
  powerpc/time: printk time stamp init not correct
  powerpc: Minor cleanups for machdep.h
  ...

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (42 commits)
  IB/qib: Fix refcount leak in lkey/rkey validation
  IB/qib: Improve SERDES tunning on QMH boards
  IB/qib: Unnecessary delayed completions on RC connection
  IB/qib: Issue pre-emptive NAKs on eager buffer overflow
  IB/qib: RDMA lkey/rkey validation is inefficient for large MRs
  IB/qib: Change QPN increment
  IB/qib: Add fix missing from earlier patch
  IB/qib: Change receive queue/QPN selection
  IB/qib: Fix interrupt mitigation
  IB/qib: Avoid duplicate writes to the rcv head register
  IB/qib: Add a few new SERDES tunings
  IB/qib: Reset packet list after freeing
  IB/qib: New SERDES init routine and improvements to SI quality
  IB/qib: Clear WAIT_SEND flags when setting QP to error state
  IB/qib: Fix context allocation with multiple HCAs
  IB/qib: Fix multi-Florida HCA host panic on reboot
  IB/qib: Handle transitions from ACTIVE_DEFERRED to ACTIVE better
  IB/qib: UD send with immediate receive completion has wrong size
  IB/qib: Set port physical state even if other fields are invalid
  IB/qib: Generate completion callback on errors
  ...

Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>

If the Link Start fails in cxgb4vf_open(), we need to back out any state
that we've built up ...
Signed-off-by: NCasey Leedom <leedom@chelsio.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

* 'nfs-for-2.6.38' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6: (89 commits)
  NFS fix the setting of exchange id flag
  NFS: Don't use vm_map_ram() in readdir
  NFSv4: Ensure continued open and lockowner name uniqueness
  NFS: Move cl_delegations to the nfs_server struct
  NFS: Introduce nfs_detach_delegations()
  NFS: Move cl_state_owners and related fields to the nfs_server struct
  NFS: Allow walking nfs_client.cl_superblocks list outside client.c
  pnfs: layout roc code
  pnfs: update nfs4_callback_recallany to handle layouts
  pnfs: add CB_LAYOUTRECALL handling
  pnfs: CB_LAYOUTRECALL xdr code
  pnfs: change lo refcounting to atomic_t
  pnfs: check that partial LAYOUTGET return is ignored
  pnfs: add layout to client list before sending rpc
  pnfs: serialize LAYOUTGET(openstateid)
  pnfs: layoutget rpc code cleanup
  pnfs: change how lsegs are removed from layout list
  pnfs: change layout state seqlock to a spinlock
  pnfs: add prefix to struct pnfs_layout_hdr fields
  pnfs: add prefix to struct pnfs_layout_segment fields
  ...

broute table init hook sets up the "br_should_route_hook" pointer,
which then gets called from br_input.

commit a386f990
(bridge: add proper RCU annotation to should_route_hook)
introduced a typedef, and then changed this to:

br_should_route_hook_t *rhook;
[..]
rhook = rcu_dereference(br_should_route_hook);
if (*rhook(skb))

problem is that "br_should_route_hook" contains the address of the function,
so calling *rhook() results in kernel panic.
Signed-off-by: NFlorian Westphal <fw@strlen.de>
Acked-by: NEric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: NPablo Neira Ayuso <pablo@netfilter.org>

The netlink interface to dump the connection tracking table has a race
when entries are deleted at the same time. A customer reported a crash
and the backtrace showed thatctnetlink_dump_table was running while a
conntrack entry was being destroyed.
(see https://bugzilla.vyatta.com/show_bug.cgi?id=6402).

According to RCU documentation, when using hlist_nulls the reader
must handle the case of seeing a deleted entry and not proceed
further down the linked list.  The old code would continue
which caused the scan to walk into the free list.

This patch uses locking (rather than RCU) for this operation which
is guaranteed safe, and no longer requires getting reference while
doing dump operation.
Signed-off-by: NStephen Hemminger <shemminger@vyatta.com>
Signed-off-by: NPablo Neira Ayuso <pablo@netfilter.org>

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-udf-2.6:
  UDF: Close small mem leak in udf_find_entry()
  udf: Fix directory corruption after extent merging
  udf: Protect udf_file_aio_write from possible races
  udf: Remove unnecessary bkl usages
  udf: Use of s_alloc_mutex to serialize udf_relocate_blocks() execution
  udf: Replace bkl with the UDF_I(inode)->i_data_sem for protect udf_inode_info struct
  udf: Remove BKL from free space counting functions
  udf: Call udf_add_free_space() for more blocks at once in udf_free_blocks()
  udf: Remove BKL from udf_put_super() and udf_remount_fs()
  udf: Protect default inode credentials by rwlock
  udf: Protect all modifications of LVID with s_alloc_mutex
  udf: Move handling of uniqueID into a helper function and protect it by a s_alloc_mutex
  udf: Remove BKL from udf_update_inode
  udf: Convert UDF_SB(sb)->s_flags to use bitops
  fs/udf: Add printf format/argument verification
  fs/udf: Use vzalloc

(Evil merge: this also removes the BKL dependency from the Kconfig file)

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (44 commits)
  ext4: fix trimming starting with block 0 with small blocksize
  ext4: revert buggy trim overflow patch
  ext4: don't pass entire map to check_eofblocks_fl
  ext4: fix memory leak in ext4_free_branches
  ext4: remove ext4_mb_return_to_preallocation()
  ext4: flush the i_completed_io_list during ext4_truncate
  ext4: add error checking to calls to ext4_handle_dirty_metadata()
  ext4: fix trimming of a single group
  ext4: fix uninitialized variable in ext4_register_li_request
  ext4: dynamically allocate the jbd2_inode in ext4_inode_info as necessary
  ext4: drop i_state_flags on architectures with 64-bit longs
  ext4: reorder ext4_inode_info structure elements to remove unneeded padding
  ext4: drop ec_type from the ext4_ext_cache structure
  ext4: use ext4_lblk_t instead of sector_t for logical blocks
  ext4: replace i_delalloc_reserved_flag with EXT4_STATE_DELALLOC_RESERVED
  ext4: fix 32bit overflow in ext4_ext_find_goal()
  ext4: add more error checks to ext4_mkdir()
  ext4: ext4_ext_migrate should use NULL not 0
  ext4: Use ext4_error_file() to print the pathname to the corrupted inode
  ext4: use IS_ERR() to check for errors in ext4_error_file
  ...

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6:
  ext2: Resolve 'dereferencing pointer to incomplete type' when enabling EXT2_XATTR_DEBUG
  ext3: Remove redundant unlikely()
  ext2: Remove redundant unlikely()
  ext3: speed up file creates by optimizing rec_len functions
  ext2: speed up file creates by optimizing rec_len functions
  ext3: Add more journal error check
  ext3: Add journal error check in resize.c
  quota: Use %pV and __attribute__((format (printf in __quota_error and fix fallout
  ext3: Add FITRIM handling
  ext3: Add batched discard support for ext3
  ext3: Add journal error check into ext3_rename()
  ext3: Use search_dirblock() in ext3_dx_find_entry()
  ext3: Avoid uninitialized memory references with a corrupted htree directory
  ext3: Return error code from generic_check_addressable
  ext3: Add journal error check into ext3_delete_entry()
  ext3: Add error check in ext3_mkdir()
  fs/ext3/super.c: Use printf extension %pV
  fs/ext2/super.c: Use printf extension %pV
  ext3: don't update sb journal_devnum when RO dev