Eric Lee / smarc-fsl-linux-kernel

02 Nov, 2017

1 commit

  • b24413180   License cleanup: add SPDX GPL-2.0 license identifier to files with no license ... Browse Code »

    Many source files in the tree are missing licensing information, which
    makes it harder for compliance tools to determine the correct license.

    By default all files without license information are under the default
    license of the kernel, which is GPL version 2.

    Update the files which contain no license information with the 'GPL-2.0'
    SPDX license identifier. The SPDX identifier is a legally binding
    shorthand, which can be used instead of the full boiler plate text.

    This patch is based on work done by Thomas Gleixner and Kate Stewart and
    Philippe Ombredanne.

    How this work was done:

    Patches were generated and checked against linux-4.14-rc6 for a subset of
    the use cases:
    - file had no licensing information it it.
    - file was a */uapi/* one with no licensing information in it,
    - file was a */uapi/* one with existing licensing information,

    Further patches will be generated in subsequent months to fix up cases
    where non-standard license headers were used, and references to license
    had to be inferred by heuristics based on keywords.

    The analysis to determine which SPDX License Identifier to be applied to
    a file was done in a spreadsheet of side by side results from of the
    output of two independent scanners (ScanCode & Windriver) producing SPDX
    tag:value files created by Philippe Ombredanne. Philippe prepared the
    base worksheet, and did an initial spot review of a few 1000 files.

    The 4.13 kernel was the starting point of the analysis with 60,537 files
    assessed. Kate Stewart did a file by file comparison of the scanner
    results in the spreadsheet to determine which SPDX license identifier(s)
    to be applied to the file. She confirmed any determination that was not
    immediately clear with lawyers working with the Linux Foundation.

    Criteria used to select files for SPDX license identifier tagging was:
    - Files considered eligible had to be source code files.
    - Make and config files were included as candidates if they contained >5
    lines of source
    - File already had some variant of a license header in it (even if
    Reviewed-by: Philippe Ombredanne
    Reviewed-by: Thomas Gleixner
    Signed-off-by: Greg Kroah-Hartman

    Greg Kroah-Hartman
     

07 Sep, 2017

1 commit

10 May, 2017

1 commit

  • 26c5eaa13   Merge tag 'ceph-for-4.12-rc1' of git://github.com/ceph/ceph-client ... Browse Code »

    Pull ceph updates from Ilya Dryomov:
    "The two main items are support for disabling automatic rbd exclusive
    lock transfers from myself and the long awaited -ENOSPC handling
    series from Jeff.

    The former will allow rbd users to take advantage of exclusive lock's
    built-in blacklist/break-lock functionality while staying in control
    of who owns the lock. With the latter in place, we will abort
    filesystem writes on -ENOSPC instead of having them block
    indefinitely.

    Beyond that we've got the usual pile of filesystem fixes from Zheng,
    some refcount_t conversion patches from Elena and a patch for an
    ancient open() flags handling bug from Alexander"

    * tag 'ceph-for-4.12-rc1' of git://github.com/ceph/ceph-client: (31 commits)
    ceph: fix memory leak in __ceph_setxattr()
    ceph: fix file open flags on ppc64
    ceph: choose readdir frag based on previous readdir reply
    rbd: exclusive map option
    rbd: return ResponseMessage result from rbd_handle_request_lock()
    rbd: kill rbd_is_lock_supported()
    rbd: support updating the lock cookie without releasing the lock
    rbd: store lock cookie
    rbd: ignore unlock errors
    rbd: fix error handling around rbd_init_disk()
    rbd: move rbd_unregister_watch() call into rbd_dev_image_release()
    rbd: move rbd_dev_destroy() call out of rbd_dev_image_release()
    ceph: when seeing write errors on an inode, switch to sync writes
    Revert "ceph: SetPageError() for writeback pages if writepages fails"
    ceph: handle epoch barriers in cap messages
    libceph: add an epoch_barrier field to struct ceph_osd_client
    libceph: abort already submitted but abortable requests when map or pool goes full
    libceph: allow requests to return immediately on full conditions if caller wishes
    libceph: remove req->r_replay_version
    ceph: make seeky readdir more efficient
    ...

    Linus Torvalds
     

04 May, 2017

1 commit

21 Apr, 2017

1 commit

  • 09dc9fc24   ceph: Convert to separately allocated bdi ... Browse Code »

    Allocate struct backing_dev_info separately instead of embedding it
    inside client structure. This unifies handling of bdi among users.

    CC: Ilya Dryomov
    CC: "Yan, Zheng"
    CC: Sage Weil
    CC: ceph-devel@vger.kernel.org
    Reviewed-by: Christoph Hellwig
    Signed-off-by: Jan Kara
    Signed-off-by: Jens Axboe

    Jan Kara
     

20 Feb, 2017

1 commit

  • bc2de10dc   ceph: convert bools in ceph_mds_request to a new r_req_flags field ... Browse Code »

    Currently, we have a bunch of bool flags in struct ceph_mds_request. We
    need more flags though, but each bool takes (at least) a byte. Those
    add up over time.

    Merge all of the existing bools in this struct into a single unsigned
    long, and use the set/test/clear_bit macros to manipulate them. These
    are atomic operations, but that is required here to prevent
    load/modify/store races. The existing flags are protected by different
    locks, so we can't rely on them for that purpose.

    Signed-off-by: Jeff Layton
    Reviewed-by: Yan, Zheng
    Signed-off-by: Ilya Dryomov

    Jeff Layton
     

26 May, 2016

1 commit

16 Apr, 2015

1 commit

20 Nov, 2014

1 commit

15 Oct, 2014

1 commit

07 Jun, 2014

1 commit

03 Apr, 2014

2 commits

21 Aug, 2012

1 commit

  • d1c338a50   libceph: delay debugfs initialization until we learn global_id ... Browse Code »

    The debugfs directory includes the cluster fsid and our unique global_id.
    We need to delay the initialization of the debug entry until we have
    learned both the fsid and our global_id from the monitor or else the
    second client can't create its debugfs entry and will fail (and multiple
    client instances aren't properly reflected in debugfs).

    Reported by: Yan, Zheng
    Signed-off-by: Sage Weil
    Reviewed-by: Yehuda Sadeh

    Sage Weil
     

27 Jul, 2011

1 commit

  • 41b02e1f9   ceph: explicitly reference rename old_dentry parent dir in request ... Browse Code »

    We carry a pin on the parent directory for the rename source and dest
    dentries. For the source it's r_locked_dir; we need to explicitly
    reference the old_dentry parent as well, since the dentry's d_parent may
    change between when the request was created and pinned and when it is
    freed.

    Reviewed-by: Yehuda Sadeh
    Signed-off-by: Sage Weil

    Sage Weil
     

22 Mar, 2011

1 commit

13 Jan, 2011

1 commit

21 Oct, 2010

2 commits

  • 6f453ed6c   ceph: fix debugfs warnings ... Browse Code »

    Include "super.h" outside of CONFIG_DEBUG_FS to eliminate a compiler warning:

    fs/ceph/debugfs.c:266: warning: 'struct ceph_fs_client' declared inside parameter list
    fs/ceph/debugfs.c:266: warning: its scope is only this definition or declaration, which is probably not what you want
    fs/ceph/debugfs.c:271: warning: 'struct ceph_fs_client' declared inside parameter list

    Signed-off-by: Randy Dunlap
    Signed-off-by: Yehuda Sadeh

    Randy Dunlap
     
  • 3d14c5d2b   ceph: factor out libceph from Ceph file system ... Browse Code »

    This factors out protocol and low-level storage parts of ceph into a
    separate libceph module living in net/ceph and include/linux/ceph. This
    is mostly a matter of moving files around. However, a few key pieces
    of the interface change as well:

    - ceph_client becomes ceph_fs_client and ceph_client, where the latter
    captures the mon and osd clients, and the fs_client gets the mds client
    and file system specific pieces.
    - Mount option parsing and debugfs setup is correspondingly broken into
    two pieces.
    - The mon client gets a generic handler callback for otherwise unknown
    messages (mds map, in this case).
    - The basic supported/required feature bits can be expanded (and are by
    ceph_fs_client).

    No functional change, aside from some subtle error handling cases that got
    cleaned up in the refactoring process.

    Signed-off-by: Sage Weil

    Yehuda Sadeh
     

27 Aug, 2010

1 commit

04 Aug, 2010

1 commit

02 Aug, 2010

1 commit

25 Jun, 2010

1 commit

18 May, 2010

1 commit

30 Mar, 2010

1 commit

  • 5a0e3ad6a   include cleanup: Update gfp.h and slab.h includes to prepare for breaking implic… ... Browse Code »

    …it slab.h inclusion from percpu.h

    percpu.h is included by sched.h and module.h and thus ends up being
    included when building most .c files. percpu.h includes slab.h which
    in turn includes gfp.h making everything defined by the two files
    universally available and complicating inclusion dependencies.

    percpu.h -> slab.h dependency is about to be removed. Prepare for
    this change by updating users of gfp and slab facilities include those
    headers directly instead of assuming availability. As this conversion
    needs to touch large number of source files, the following script is
    used as the basis of conversion.

    http://userweb.kernel.org/~tj/misc/slabh-sweep.py

    The script does the followings.

    * Scan files for gfp and slab usages and update includes such that
    only the necessary includes are there. ie. if only gfp is used,
    gfp.h, if slab is used, slab.h.

    * When the script inserts a new include, it looks at the include
    blocks and try to put the new include such that its order conforms
    to its surrounding. It's put in the include block which contains
    core kernel includes, in the same order that the rest are ordered -
    alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
    doesn't seem to be any matching order.

    * If the script can't find a place to put a new include (mostly
    because the file doesn't have fitting include block), it prints out
    an error message indicating which .h file needs to be added to the
    file.

    The conversion was done in the following steps.

    1. The initial automatic conversion of all .c files updated slightly
    over 4000 files, deleting around 700 includes and adding ~480 gfp.h
    and ~3000 slab.h inclusions. The script emitted errors for ~400
    files.

    2. Each error was manually checked. Some didn't need the inclusion,
    some needed manual addition while adding it to implementation .h or
    embedding .c file was more appropriate for others. This step added
    inclusions to around 150 files.

    3. The script was run again and the output was compared to the edits
    from #2 to make sure no file was left behind.

    4. Several build tests were done and a couple of problems were fixed.
    e.g. lib/decompress_*.c used malloc/free() wrappers around slab
    APIs requiring slab.h to be added manually.

    5. The script was run on all .h files but without automatically
    editing them as sprinkling gfp.h and slab.h inclusions around .h
    files could easily lead to inclusion dependency hell. Most gfp.h
    inclusion directives were ignored as stuff from gfp.h was usually
    wildly available and often used in preprocessor macros. Each
    slab.h inclusion directive was examined and added manually as
    necessary.

    6. percpu.h was updated not to include slab.h.

    7. Build test were done on the following configurations and failures
    were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my
    distributed build env didn't work with gcov compiles) and a few
    more options had to be turned off depending on archs to make things
    build (like ipr on powerpc/64 which failed due to missing writeq).

    * x86 and x86_64 UP and SMP allmodconfig and a custom test config.
    * powerpc and powerpc64 SMP allmodconfig
    * sparc and sparc64 SMP allmodconfig
    * ia64 SMP allmodconfig
    * s390 SMP allmodconfig
    * alpha SMP allmodconfig
    * um on x86_64 SMP allmodconfig

    8. percpu.h modifications were reverted so that it could be applied as
    a separate patch and serve as bisection point.

    Given the fact that I had only a couple of failures from tests on step
    6, I'm fairly confident about the coverage of this conversion patch.
    If there is a breakage, it's likely to be something in one of the arch
    headers which should be easily discoverable easily on most builds of
    the specific arch.

    Signed-off-by: Tejun Heo <tj@kernel.org>
    Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
    Cc: Ingo Molnar <mingo@redhat.com>
    Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>

    Tejun Heo
     

18 Feb, 2010

2 commits

  • 4fc51be8f   ceph: use rbtree for pg pools; decode new osdmap format ... Browse Code »

    Since we can now create and destroy pg pools, the pool ids will be sparse,
    and an array no longer makes sense for looking up by pool id. Use an
    rbtree instead.

    The OSDMap encoding also no longer has a max pool count (previously used to
    allocate the array). There is a new pool_max, that is the largest pool id
    we've ever used, although we don't actually need it in the client.

    Signed-off-by: Sage Weil

    Sage Weil
     
  • 85ccce43a   ceph: clean up readdir caps reservation ... Browse Code »

    Use a global counter for the minimum number of allocated caps instead of
    hard coding a check against readdir_max. This takes into account multiple
    client instances, and avoids examining the superblock mount options when a
    cap is dropped.

    Signed-off-by: Sage Weil

    Sage Weil
     

17 Feb, 2010

2 commits

15 Jan, 2010

1 commit

22 Dec, 2009

2 commits

21 Nov, 2009

1 commit

  • 0743304d8   ceph: fix debugfs entry, simplify fsid checks ... Browse Code »

    We may first learn our fsid from any of the mon, osd, or mds maps
    (whichever the monitor sends first). Consolidate checks in a single
    helper. Initialize the client debugfs entry then, since we need the
    fsid (and global_id) for the directory name.

    Also remove dead mount code.

    Signed-off-by: Sage Weil

    Sage Weil
     

13 Nov, 2009

1 commit

07 Oct, 2009

1 commit

  • 76aa844d5   ceph: debugfs ... Browse Code »

    Basic state information is available via /sys/kernel/debug/ceph,
    including instances of the client, fsids, current monitor, mds and osd
    maps, outstanding server requests, and hooks to adjust debug levels.

    Signed-off-by: Sage Weil

    Sage Weil