Eric Lee / smarc-fsl-linux-kernel

31 May, 2019

1 commit

  • 1f3276132   treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 188 ... Browse Code »

    Based on 1 normalized pattern(s):

    this program is free software you can redistribute it and or modify
    it under the terms of the gnu general public license version 2 as
    published by the free software foundation this program is
    distributed in the hope that it will be useful but without any
    warranty without even the implied warranty of merchantability or
    fitness for a particular purpose see the gnu general public license
    for more details you should have received a copy of the gnu general
    public license along with this program if not write to free software
    foundation 51 franklin street fifth floor boston ma 02111 1301 usa

    extracted by the scancode license scanner the SPDX license identifier

    GPL-2.0-only

    has been chosen to replace the boilerplate/reference in 27 file(s).

    Signed-off-by: Thomas Gleixner
    Reviewed-by: Richard Fontana
    Reviewed-by: Alexios Zavras
    Reviewed-by: Steve Winslow
    Reviewed-by: Allison Randal
    Cc: linux-spdx@vger.kernel.org
    Link: https://lkml.kernel.org/r/20190528170026.981318839@linutronix.de
    Signed-off-by: Greg Kroah-Hartman

    Thomas Gleixner
     

08 Sep, 2018

1 commit

  • 5e172f75e   9p locks: add mount option for lock retry interval ... Browse Code »

    The default P9_LOCK_TIMEOUT can be too long for some users exporting
    a local file system to a guest VM (30s), make this configurable at
    mount time.

    Link: http://lkml.kernel.org/r/1536295827-3181-1-git-send-email-asmadeus@codewreck.org
    Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=195727
    Signed-off-by: Dinu-Razvan Chis-Serban
    Signed-off-by: Dominique Martinet

    Dinu-Razvan Chis-Serban
     

11 Jul, 2017

1 commit

  • c4fac9100   9p: Implement show_options ... Browse Code »

    Implement the show_options superblock op for 9p as part of a bid to get
    rid of s_options and generic_show_options() to make it easier to implement
    a context-based mount where the mount options can be passed individually
    over a file descriptor.

    Signed-off-by: David Howells
    cc: Eric Van Hensbergen
    cc: Ron Minnich
    cc: Latchesar Ionkov
    cc: v9fs-developer@lists.sourceforge.net
    Signed-off-by: Al Viro

    David Howells
     

21 Apr, 2017

1 commit

  • 71304feba   9p: Convert to separately allocated bdi ... Browse Code »

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

    CC: Eric Van Hensbergen
    CC: Ron Minnich
    CC: Latchesar Ionkov
    CC: v9fs-developer@lists.sourceforge.net
    Reviewed-by: Christoph Hellwig
    Signed-off-by: Jan Kara
    Signed-off-by: Jens Axboe

    Jan Kara
     

27 Sep, 2016

1 commit

  • 1cd66c93b   fs: make remaining filesystems use .rename2 ... Browse Code »

    This is trivial to do:

    - add flags argument to foo_rename()
    - check if flags is zero
    - assign foo_rename() to .rename2 instead of .rename

    This doesn't mean it's impossible to support RENAME_NOREPLACE for these
    filesystems, but it is not trivial, like for local filesystems.
    RENAME_NOREPLACE must guarantee atomicity (i.e. it shouldn't be possible
    for a file to be created on one host while it is overwritten by rename on
    another host).

    Filesystems converted:

    9p, afs, ceph, coda, ecryptfs, kernfs, lustre, ncpfs, nfs, ocfs2, orangefs.

    After this, we can get rid of the duplicate interfaces for rename.

    Signed-off-by: Miklos Szeredi
    Acked-by: Greg Kroah-Hartman
    Acked-by: David Howells [AFS]
    Acked-by: Mike Marshall
    Cc: Eric Van Hensbergen
    Cc: Ilya Dryomov
    Cc: Jan Harkes
    Cc: Tyler Hicks
    Cc: Oleg Drokin
    Cc: Trond Myklebust
    Cc: Mark Fasheh

    Miklos Szeredi
     

09 Jan, 2016

1 commit

11 May, 2015

1 commit

20 Mar, 2015

1 commit

  • e8782e2fb   9p: kerneldoc warning fixes ... Browse Code »

    options argument was removed from v9fs_session_info in commit 4b53e4b50077
    ("9p: remove unnecessary v9fses->options which duplicates the mount string")

    iov and nr_segs were removed from v9fs_direct_IO
    in commit d8d3d94b80aa
    ("pass iov_iter to ->direct_IO()")

    Cc: Eric Van Hensbergen
    Cc: Ron Minnich
    Cc: Latchesar Ionkov
    Cc: v9fs-developer@lists.sourceforge.net
    Signed-off-by: Fabian Frederick
    Signed-off-by: Dominique Martinet
    Signed-off-by: Eric Van Hensbergen

    Fabian Frederick
     

10 Jan, 2014

1 commit

12 Feb, 2013

1 commit

  • 76ed23a5d   9p: Modify struct v9fs_session_info to use a kuids and kgids ... Browse Code »

    Change struct v9fs_session_info and the code that popluates it to use
    kuids and kgids. When parsing the 9p mount options convert the
    dfltuid, dflutgid, and the session uid from the current user namespace
    into kuids and kgids. Modify V9FS_DEFUID and V9FS_DEFGUID to be kuid
    and kgid values.

    Cc: Eric Van Hensbergen
    Cc: Ron Minnich
    Cc: Latchesar Ionkov
    Signed-off-by: "Eric W. Biederman"

    Eric W. Biederman
     

14 Jul, 2012

1 commit

  • 00cd8dd3b   stop passing nameidata to ->lookup() ... Browse Code »

    Just the flags; only NFS cares even about that, but there are
    legitimate uses for such argument. And getting rid of that
    completely would require splitting ->lookup() into a couple
    of methods (at least), so let's leave that alone for now...

    Signed-off-by: Al Viro

    Al Viro
     

23 Jul, 2011

2 commits

  • ed80fcfac   fs/9p: Always ask new inode in create ... Browse Code »
    1

    This make sure we don't end up reusing the unlinked inode object.
    The ideal way is to use inode i_generation. But i_generation is
    not available in userspace always.

    Signed-off-by: Aneesh Kumar K.V
    Signed-off-by: Eric Van Hensbergen

    Aneesh Kumar K.V
     
  • fd2421f54   fs/9p: When doing inode lookup compare qid details and inode mode bits. ... Browse Code »
    1

    This make sure we don't use wrong inode from the inode hash. The inode number
    of the file deleted is reused by the next file system object created
    and if we only use inode number for inode hash lookup we could end up
    with wrong struct inode.

    Also compare inode generation number. Not all Linux file system provide
    st_gen in userspace. So it could be 0;

    Signed-off-by: Aneesh Kumar K.V
    Signed-off-by: Eric Van Hensbergen

    Aneesh Kumar K.V
     

16 Apr, 2011

1 commit

  • df5d8c80f   9p: revert tsyncfs related changes ... Browse Code »

    Now that we use write_inode to flush server
    cache related to fid, we don't need tsyncfs either fort dotl or dotu
    protocols. For dotu this helps to do a more efficient server flush.

    Signed-off-by: Aneesh Kumar K.V
    Signed-off-by: Venkateswararao Jujjuri
    Signed-off-by: Eric Van Hensbergen

    Aneesh Kumar K.V
     

23 Mar, 2011

2 commits

15 Mar, 2011

6 commits

  • e0459f57b   fs/9p: Prevent multiple inclusion of same header ... Browse Code »

    Add necessary #ifndef #endif blocks to avoid mulitple inclusion of same headers

    Signed-off-by: Aneesh Kumar K.V
    Signed-off-by: Venkateswararao Jujjuri
    Signed-off-by: Eric Van Hensbergen

    Aneesh Kumar K.V
     
  • b3cbea03b   fs/9p: Add support for marking inode attribute invalid ... Browse Code »

    With cached mode some of the file system operation result
    in updating inode attributes (ctime). Add support for
    marking inode attribute invalid in such cases so that
    we fetch the updated inode attribute on dentry revalidation.

    Signed-off-by: Aneesh Kumar K.V
    Signed-off-by: Venkateswararao Jujjuri
    Signed-off-by: Eric Van Hensbergen

    Aneesh Kumar K.V
     
  • 6b39f6d22   fs/9p: Move writeback fid to v9fs_inode ... Browse Code »

    Signed-off-by: Aneesh Kumar K.V
    Signed-off-by: Venkateswararao Jujjuri
    Signed-off-by: Eric Van Hensbergen

    Aneesh Kumar K.V
     
  • a78ce05d5   fs/9p: Add v9fs_inode ... Browse Code »

    Switch to the fscache code to v9fs_inode. We will later use
    v9fs_inode in cache=loose mode to track the inode cache
    validity timeout. Ie if we find an inode in cache older
    that a specific jiffie range we will consider it stale

    Signed-off-by: Aneesh Kumar K.V
    Signed-off-by: Venkateswararao Jujjuri
    Signed-off-by: Eric Van Hensbergen

    Aneesh Kumar K.V
     
  • 00ea2df43   fs/9p: Implement syncfs call back for 9Pfs ... Browse Code »

    FIXME!! what about dotu ?

    Signed-off-by: Aneesh Kumar K.V
    Signed-off-by: Venkateswararao Jujjuri
    Signed-off-by: Eric Van Hensbergen

    Aneesh Kumar K.V
     
  • e782ef710   [fs/9P] Add posixacl mount option ... Browse Code »

    The mount option access=client is overloaded as it assumes acl too.
    Adding posixacl option to enable POSIX ACLs makes it explicit and clear.
    Also it is convenient in the future to add other types of acls like richacls.

    Ideally, the access mode 'client' should be just like V9FS_ACCESS_USER
    except it underscores the location of access check.
    Traditional 9P protocol lets the server perform access checks but with
    this mode, all the access checks will be performed on the client itself.
    Server just follows the client's directive.

    Signed-off-by: Venkateswararao Jujjuri
    Signed-off-by: Eric Van Hensbergen

    Venkateswararao Jujjuri (JV)
     

11 Jan, 2011

1 commit

28 Oct, 2010

2 commits

03 Aug, 2010

1 commit

  • a534c8d15   fs/9p: Prevent parallel rename when doing fid_lookup ... Browse Code »

    During fid lookup we need to make sure that the dentry->d_parent doesn't
    change so that we can safely walk the parent dentries. To ensure that
    we need to prevent cross directory rename during fid_lookup. Add a
    per superblock rename_sem rw_semaphore to prevent parallel fid lookup and
    rename.

    Signed-off-by: Aneesh Kumar K.V
    Signed-off-by: Venkateswararao Jujjuri
    Signed-off-by: Eric Van Hensbergen

    Aneesh Kumar K.V
     

22 Apr, 2010

1 commit

05 Apr, 2010

1 commit

13 Mar, 2010

1 commit

06 Mar, 2010

1 commit

  • dd6102fbd   9P2010.L handshake: Add VFS flags ... Browse Code »

    Add 9P2000.u and 9P2010.L protocol flags to V9FS VFS

    This patch adds 9P2000.u and 9P2010.L protocol flags into V9FS VFS side code
    and removes the single flag used for 'extended'.

    Signed-off-by: Sripathi Kodi
    Signed-off-by: Eric Van Hensbergen

    Sripathi Kodi
     

24 Sep, 2009

1 commit

  • 60e78d2c9   9p: Add fscache support to 9p ... Browse Code »

    This patch adds a persistent, read-only caching facility for
    9p clients using the FS-Cache caching backend.

    When the fscache facility is enabled, each inode is associated
    with a corresponding vcookie which is an index into the FS-Cache
    indexing tree. The FS-Cache indexing tree is indexed at 3 levels:
    - session object associated with each mount.
    - inode/vcookie
    - actual data (pages)

    A cache tag is chosen randomly for each session. These tags can
    be read off /sys/fs/9p/caches and can be passed as a mount-time
    parameter to re-attach to the specified caching session.

    Signed-off-by: Abhishek Kulkarni
    Signed-off-by: Eric Van Hensbergen

    Abhishek Kulkarni
     

18 Aug, 2009

1 commit

15 May, 2008

1 commit

  • ee443996a   9p: Documentation updates ... Browse Code »

    The kernel-doc comments of much of the 9p system have been in disarray since
    reorganization. This patch fixes those problems, adds additional documentation
    and a template book which collects the 9p information.

    Signed-off-by: Eric Van Hensbergen

    Eric Van Hensbergen
     

07 Feb, 2008

1 commit

  • 8a0dc95fd   9p: transport API reorganization ... Browse Code »

    This merges the mux.c (including the connection interface) with trans_fd
    in preparation for transport API changes. Ultimately, trans_fd will need
    to be rewritten to clean it up and simplify the implementation, but this
    reorganization is viewed as the first step.

    Signed-off-by: Eric Van Hensbergen

    Eric Van Hensbergen
     

18 Oct, 2007

4 commits

  • ba17674fe   9p: attach-per-user ... Browse Code »

    The 9P2000 protocol requires the authentication and permission checks to be
    done in the file server. For that reason every user that accesses the file
    server tree has to authenticate and attach to the server separately.
    Multiple users can share the same connection to the server.

    Currently v9fs does a single attach and executes all I/O operations as a
    single user. This makes using v9fs in multiuser environment unsafe as it
    depends on the client doing the permission checking.

    This patch improves the 9P2000 support by allowing every user to attach
    separately. The patch defines three modes of access (new mount option
    'access'):

    - attach-per-user (access=user) (default mode for 9P2000.u)
    If a user tries to access a file served by v9fs for the first time, v9fs
    sends an attach command to the server (Tattach) specifying the user. If
    the attach succeeds, the user can access the v9fs tree.
    As there is no uname->uid (string->integer) mapping yet, this mode works
    only with the 9P2000.u dialect.

    - allow only one user to access the tree (access=)
    Only the user with uid can access the v9fs tree. Other users that attempt
    to access it will get EPERM error.

    - do all operations as a single user (access=any) (default for 9P2000)
    V9fs does a single attach and all operations are done as a single user.
    If this mode is selected, the v9fs behavior is identical with the current
    one.

    Signed-off-by: Latchesar Ionkov
    Signed-off-by: Eric Van Hensbergen

    Latchesar Ionkov
     
  • bd32b82df   9p: rename uid and gid parameters ... Browse Code »

    Change the names of 'uid' and 'gid' parameters to the more appropriate
    'dfltuid' and 'dfltgid'. This also sets the default uid/gid to -2
    (aka nfsnobody)

    Signed-off-by: Latchesar Ionkov
    Signed-off-by: Eric Van Hensbergen

    Latchesar Ionkov
     
  • 2405669b2   9p: define session flags ... Browse Code »

    Create more general flags field in the v9fs_session_info struct and move the
    'extended' flag as a bit in the flags.

    Signed-off-by: Latchesar Ionkov
    Signed-off-by: Eric Van Hensbergen

    Latchesar Ionkov
     
  • a80d923e1   9p: Make transports dynamic ... Browse Code »

    This patch abstracts out the interfaces to underlying transports so that
    new transports can be added as modules. This should also allow kernel
    configuration of transports without ifdef-hell.

    Signed-off-by: Eric Van Hensbergen

    Eric Van Hensbergen
     

15 Jul, 2007

1 commit

  • bd238fb43   9p: Reorganization of 9p file system code ... Browse Code »

    This patchset moves non-filesystem interfaces of v9fs from fs/9p to net/9p.
    It moves the transport, packet marshalling and connection layers to net/9p
    leaving only the VFS related files in fs/9p. This work is being done in
    preparation for in-kernel 9p servers as well as alternate 9p clients (other
    than VFS).

    Signed-off-by: Latchesar Ionkov
    Signed-off-by: Eric Van Hensbergen

    Latchesar Ionkov