Eric Lee / smarc-fsl-linux-kernel

11 May, 2012

1 commit

  • 26fe57502   vfs: make it possible to access the dentry hash/len as one 64-bit entry ... Browse Code »

    This allows comparing hash and len in one operation on 64-bit
    architectures. Right now only __d_lookup_rcu() takes advantage of this,
    since that is the case we care most about.

    The use of anonymous struct/unions hides the alternate 64-bit approach
    from most users, the exception being a few cases where we initialize a
    'struct qstr' with a static initializer. This makes the problematic
    cases use a new QSTR_INIT() helper function for that (but initializing
    just the name pointer with a "{ .name = xyzzy }" initializer remains
    valid, as does just copying another qstr structure).

    Signed-off-by: Linus Torvalds

    Linus Torvalds
     

01 May, 2012

1 commit

29 Apr, 2012

1 commit

28 Apr, 2012

8 commits

27 Apr, 2012

4 commits

22 Apr, 2012

2 commits

21 Apr, 2012

4 commits

20 Apr, 2012

3 commits

18 Apr, 2012

1 commit

29 Mar, 2012

3 commits

  • 58df9b387   Merge tag 'nfs-for-3.4-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs ... Browse Code »

    Pull NFS client bugfixes for Linux 3.4 from Trond Myklebust

    Highlights include:
    - Fix infinite loops in the mount code
    - Fix a userspace buffer overflow in __nfs4_get_acl_uncached
    - Fix a memory leak due to a double reference count in rpcb_getport_async()

    Signed-off-by: Trond Myklebust

    * tag 'nfs-for-3.4-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
    NFSv4: Minor cleanups for nfs4_handle_exception and nfs4_async_handle_error
    NFSv4.1: Fix layoutcommit error handling
    NFSv4: Fix two infinite loops in the mount code
    SUNRPC: Use the already looked-up xprt in rpcb_getport_async()
    NFS4.1: remove duplicate variable declaration in filelayout_clear_request_commit
    Fix length of buffer copied in __nfs4_get_acl_uncached

    Linus Torvalds
     
  • 0195c0024   Merge tag 'split-asm_system_h-for-linus-20120328' of git://git.kernel.org/pub/sc… ... Browse Code »
    88

    …m/linux/kernel/git/dhowells/linux-asm_system

    Pull "Disintegrate and delete asm/system.h" from David Howells:
    "Here are a bunch of patches to disintegrate asm/system.h into a set of
    separate bits to relieve the problem of circular inclusion
    dependencies.

    I've built all the working defconfigs from all the arches that I can
    and made sure that they don't break.

    The reason for these patches is that I recently encountered a circular
    dependency problem that came about when I produced some patches to
    optimise get_order() by rewriting it to use ilog2().

    This uses bitops - and on the SH arch asm/bitops.h drags in
    asm-generic/get_order.h by a circuituous route involving asm/system.h.

    The main difficulty seems to be asm/system.h. It holds a number of
    low level bits with no/few dependencies that are commonly used (eg.
    memory barriers) and a number of bits with more dependencies that
    aren't used in many places (eg. switch_to()).

    These patches break asm/system.h up into the following core pieces:

    (1) asm/barrier.h

    Move memory barriers here. This already done for MIPS and Alpha.

    (2) asm/switch_to.h

    Move switch_to() and related stuff here.

    (3) asm/exec.h

    Move arch_align_stack() here. Other process execution related bits
    could perhaps go here from asm/processor.h.

    (4) asm/cmpxchg.h

    Move xchg() and cmpxchg() here as they're full word atomic ops and
    frequently used by atomic_xchg() and atomic_cmpxchg().

    (5) asm/bug.h

    Move die() and related bits.

    (6) asm/auxvec.h

    Move AT_VECTOR_SIZE_ARCH here.

    Other arch headers are created as needed on a per-arch basis."

    Fixed up some conflicts from other header file cleanups and moving code
    around that has happened in the meantime, so David's testing is somewhat
    weakened by that. We'll find out anything that got broken and fix it..

    * tag 'split-asm_system_h-for-linus-20120328' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-asm_system: (38 commits)
    Delete all instances of asm/system.h
    Remove all #inclusions of asm/system.h
    Add #includes needed to permit the removal of asm/system.h
    Move all declarations of free_initmem() to linux/mm.h
    Disintegrate asm/system.h for OpenRISC
    Split arch_align_stack() out from asm-generic/system.h
    Split the switch_to() wrapper out of asm-generic/system.h
    Move the asm-generic/system.h xchg() implementation to asm-generic/cmpxchg.h
    Create asm-generic/barrier.h
    Make asm-generic/cmpxchg.h #include asm-generic/cmpxchg-local.h
    Disintegrate asm/system.h for Xtensa
    Disintegrate asm/system.h for Unicore32 [based on ver #3, changed by gxt]
    Disintegrate asm/system.h for Tile
    Disintegrate asm/system.h for Sparc
    Disintegrate asm/system.h for SH
    Disintegrate asm/system.h for Score
    Disintegrate asm/system.h for S390
    Disintegrate asm/system.h for PowerPC
    Disintegrate asm/system.h for PA-RISC
    Disintegrate asm/system.h for MN10300
    ...

    Linus Torvalds
     
  • 9ffc93f20   Remove all #inclusions of asm/system.h ... Browse Code »
    88

    Remove all #inclusions of asm/system.h preparatory to splitting and killing
    it. Performed with the following command:

    perl -p -i -e 's!^#\s*include\s*.*\n!!' `grep -Irl '^#\s*include\s*' *`

    Signed-off-by: David Howells

    David Howells
     

28 Mar, 2012

3 commits

25 Mar, 2012

2 commits

23 Mar, 2012

1 commit

  • f63d395d4   Merge tag 'nfs-for-3.4-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs ... Browse Code »

    Pull NFS client updates for Linux 3.4 from Trond Myklebust:
    "New features include:
    - Add NFS client support for containers.

    This should enable most of the necessary functionality, including
    lockd support, and support for rpc.statd, NFSv4 idmapper and
    RPCSEC_GSS upcalls into the correct network namespace from which
    the mount system call was issued.

    - NFSv4 idmapper scalability improvements

    Base the idmapper cache on the keyring interface to allow
    concurrent access to idmapper entries. Start the process of
    migrating users from the single-threaded daemon-based approach to
    the multi-threaded request-key based approach.

    - NFSv4.1 implementation id.

    Allows the NFSv4.1 client and server to mutually identify each
    other for logging and debugging purposes.

    - Support the 'vers=4.1' mount option for mounting NFSv4.1 instead of
    having to use the more counterintuitive 'vers=4,minorversion=1'.

    - SUNRPC tracepoints.

    Start the process of adding tracepoints in order to improve
    debugging of the RPC layer.

    - pNFS object layout support for autologin.

    Important bugfixes include:

    - Fix a bug in rpc_wake_up/rpc_wake_up_status that caused them to
    fail to wake up all tasks when applied to priority waitqueues.

    - Ensure that we handle read delegations correctly, when we try to
    truncate a file.

    - A number of fixes for NFSv4 state manager loops (mostly to do with
    delegation recovery)."

    * tag 'nfs-for-3.4-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (224 commits)
    NFS: fix sb->s_id in nfs debug prints
    xprtrdma: Remove assumption that each segment is ls_state in release_lockowner
    NFS: ncommit count is being double decremented
    SUNRPC: We must not use list_for_each_entry_safe() in rpc_wake_up()
    Try using machine credentials for RENEW calls
    NFSv4.1: Fix a few issues in filelayout_commit_pagelist
    NFSv4.1: Clean ups and bugfixes for the pNFS read/writeback/commit code
    ...

    Linus Torvalds
     

22 Mar, 2012

2 commits

  • e2a0883e4   Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs ... Browse Code »

    Pull vfs pile 1 from Al Viro:
    "This is _not_ all; in particular, Miklos' and Jan's stuff is not there
    yet."

    * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (64 commits)
    ext4: initialization of ext4_li_mtx needs to be done earlier
    debugfs-related mode_t whack-a-mole
    hfsplus: add an ioctl to bless files
    hfsplus: change finder_info to u32
    hfsplus: initialise userflags
    qnx4: new helper - try_extent()
    qnx4: get rid of qnx4_bread/qnx4_getblk
    take removal of PF_FORKNOEXEC to flush_old_exec()
    trim includes in inode.c
    um: uml_dup_mmap() relies on ->mmap_sem being held, but activate_mm() doesn't hold it
    um: embed ->stub_pages[] into mmu_context
    gadgetfs: list_for_each_safe() misuse
    ocfs2: fix leaks on failure exits in module_init
    ecryptfs: make register_filesystem() the last potential failure exit
    ntfs: forgets to unregister sysctls on register_filesystem() failure
    logfs: missing cleanup on register_filesystem() failure
    jfs: mising cleanup on register_filesystem() failure
    make configfs_pin_fs() return root dentry on success
    configfs: configfs_create_dir() has parent dentry in dentry->d_parent
    configfs: sanitize configfs_create()
    ...

    Linus Torvalds
     
  • 3556485f1   Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security ... Browse Code »

    Pull security subsystem updates for 3.4 from James Morris:
    "The main addition here is the new Yama security module from Kees Cook,
    which was discussed at the Linux Security Summit last year. Its
    purpose is to collect miscellaneous DAC security enhancements in one
    place. This also marks a departure in policy for LSM modules, which
    were previously limited to being standalone access control systems.
    Chromium OS is using Yama, and I believe there are plans for Ubuntu,
    at least.

    This patchset also includes maintenance updates for AppArmor, TOMOYO
    and others."

    Fix trivial conflict in due to the jumo_label->static_key
    rename.

    * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: (38 commits)
    AppArmor: Fix location of const qualifier on generated string tables
    TOMOYO: Return error if fails to delete a domain
    AppArmor: add const qualifiers to string arrays
    AppArmor: Add ability to load extended policy
    TOMOYO: Return appropriate value to poll().
    AppArmor: Move path failure information into aa_get_name and rename
    AppArmor: Update dfa matching routines.
    AppArmor: Minor cleanup of d_namespace_path to consolidate error handling
    AppArmor: Retrieve the dentry_path for error reporting when path lookup fails
    AppArmor: Add const qualifiers to generated string tables
    AppArmor: Fix oops in policy unpack auditing
    AppArmor: Fix error returned when a path lookup is disconnected
    KEYS: testing wrong bit for KEY_FLAG_REVOKED
    TOMOYO: Fix mount flags checking order.
    security: fix ima kconfig warning
    AppArmor: Fix the error case for chroot relative path name lookup
    AppArmor: fix mapping of META_READ to audit and quiet flags
    AppArmor: Fix underflow in xindex calculation
    AppArmor: Fix dropping of allowed operations that are force audited
    AppArmor: Add mising end of structure test to caps unpacking
    ...

    Linus Torvalds
     

21 Mar, 2012

4 commits

  • 5a7c9eec9   NFS: fix sb->s_id in nfs debug prints ... Browse Code »

    NFS bdi flush thread in ps output is printed like "flush-:"
    For example:
    $ ps aux | grep flush
    2079 root 0 SW [flush-0:18]
    ^^^^

    nfs_bdi_register()
    ==> bdi_register_dev()
    ==> bdi_register(bdi, NULL, "%u:%u", MAJOR(dev), MINOR(dev));
    ^^^^^

    However, NFS sb->s_id store major:minor number in hex:

    nfs_initialise_sb()
    ==> snprintf(sb->s_id, sizeof(sb->s_id),
    "%x:%x", MAJOR(sb->s_dev), MINOR(sb->s_dev));
    ^^^^^

    If we enable nfs debug prints using command:
    $ rpcdebug -m nfs -s all

    write to a file:
    $ dd if=/dev/zero of=/testfile.txt bs=32768 count=1

    Without Patch:
    [ 2431.032000] NFS: 0 initiated write call (req 0:12/40, 32768 bytes
    @ offset 0) ^^^^

    With Patch:
    [ 2431.032000] NFS: 0 initiated write call (req 0:18/40, 32768 bytes
    @ offset 0) ^^^^

    We should store NFS "s->s_id" in decimal to avoid confusion between NFS
    flush thread name(in ps output) and NFS debug prints.

    Signed-off-by: Vivek Trivedi
    Signed-off-by: Namjae Jeon
    Signed-off-by: Trond Myklebust

    Vivek Trivedi
     
  • 18d98f6c0   pnfs-obj: autologin: Add support for protocol autologin ... Browse Code »

    The pnfs-objects protocol mandates that we autologin into devices not
    present in the system, according to information specified in the
    get_device_info returned from the server.

    The Protocol specifies two login hints.
    1. An IP address:port combination
    2. A string URI which is constructed as a URL with a protocol prefix
    followed by :// and a string as address. For each protocol prefix
    the string-address format might be different.

    We only support the second option. The first option is just redundant
    to the second one.
    NOTE: The Kernel part of autologin does not parse the URI string. It
    just channels it to a user-mode script. So any new login protocols should
    only update the user-mode script which is a part of the nfs-utils package,
    but the Kernel need not change.

    We implement the autologin by using the call_usermodehelper() API.
    (Thanks to Steve Dickson for pointing it out)
    So there is no running daemon needed, and/or special setup.

    We Add the osd_login_prog Kernel module parameters which defaults to:
    /sbin/osd_login

    Kernel try's to upcall the program specified in osd_login_prog. If the file is
    not found or the execution fails Kernel will disable any farther upcalls, by
    zeroing out osd_login_prog, Until Admin re-enables it by setting the
    osd_login_prog parameter to a proper program.

    Also add text about the osd_login program command line API to:
    Documentation/filesystems/nfs/pnfs.txt
    and documentation of the new osd_login_prog module parameter to:
    Documentation/kernel-parameters.txt

    TODO: Add timeout option in the case osd_login program gets
    stuck

    Signed-off-by: Sachin Bhamare
    Signed-off-by: Boaz Harrosh
    Signed-off-by: Trond Myklebust

    Sachin Bhamare
     
  • c6bfa1a16   NFS: Remove nfs4_setup_sequence from generic rename code ... Browse Code »

    This is an NFS v4 specific operation, so it belongs in the NFS v4 code
    and not the generic client.

    Signed-off-by: Bryan Schumaker
    Signed-off-by: Trond Myklebust

    Bryan Schumaker
     
  • 34e137cc7   NFS: Remove nfs4_setup_sequence from generic unlink code ... Browse Code »

    This is an NFS v4 specific operation, so it belongs in the NFS v4 code
    and not the generic client.

    Signed-off-by: Bryan Schumaker
    Signed-off-by: Trond Myklebust

    Bryan Schumaker