Eric Lee / smarc-fsl-linux-kernel

17 Jul, 2019

3 commits

  • 5bb44810f   coda: ftoc validity check integration ... Browse Code »

    This patch moves cfi check in coda_ftoc() instead of repeating it in the
    wild.

    Module size
    text data bss dec hex filename
    28297 1040 700 30037 7555 fs/coda/coda.ko.before
    28263 980 700 29943 74f7 fs/coda/coda.ko.after

    Link: http://lkml.kernel.org/r/a2c27663ec4547018c92d71c63b1dff4650b6546.1558117389.git.jaharkes@cs.cmu.edu
    Signed-off-by: Fabian Frederick
    Signed-off-by: Jan Harkes
    Cc: Arnd Bergmann
    Cc: Colin Ian King
    Cc: Dan Carpenter
    Cc: David Howells
    Cc: Mikko Rapeli
    Cc: Sam Protsenko
    Cc: Yann Droneaud
    Cc: Zhouyang Jia
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Fabian Frederick
     
  • 8fc8b9df8   coda: move internal defs out of include/linux/ [ver #2] ... Browse Code »

    Move include/linux/coda_psdev.h to fs/coda/ as there's nothing else that
    uses it.

    Link: http://lkml.kernel.org/r/3ceeee0415a929b89fb02700b6b4b3a07938acb8.1558117389.git.jaharkes@cs.cmu.edu
    Link: https://patchwork.kernel.org/patch/10590257/
    Signed-off-by: David Howells
    Signed-off-by: Jan Harkes
    Cc: Yann Droneaud
    Cc: Jan Harkes
    Cc: Arnd Bergmann
    Cc: Colin Ian King
    Cc: Dan Carpenter
    Cc: Fabian Frederick
    Cc: Mikko Rapeli
    Cc: Sam Protsenko
    Cc: Zhouyang Jia
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    David Howells
     
  • 9a05671dd   coda: don't try to print names that were considered too long ... Browse Code »

    Probably safer to just show the unexpected length and debug it from the
    userspace side.

    Link: http://lkml.kernel.org/r/582ae759a4fdfa31a64c35de489fa4efabac09d6.1558117389.git.jaharkes@cs.cmu.edu
    Signed-off-by: Jan Harkes
    Cc: Arnd Bergmann
    Cc: Colin Ian King
    Cc: Dan Carpenter
    Cc: David Howells
    Cc: Fabian Frederick
    Cc: Mikko Rapeli
    Cc: Sam Protsenko
    Cc: Yann Droneaud
    Cc: Zhouyang Jia
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Jan Harkes
     

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
     

05 Sep, 2017

1 commit

  • bdd1d2d3d   fs: fix kernel_read prototype ... Browse Code »

    Use proper ssize_t and size_t types for the return value and count
    argument, move the offset last and make it an in/out argument like
    all other read/write helpers, and make the buf argument a void pointer
    to get rid of lots of casts in the callers.

    Signed-off-by: Christoph Hellwig
    Signed-off-by: Al Viro

    Christoph Hellwig
     

11 Oct, 2016

1 commit

28 Sep, 2016

1 commit

  • 02027d42c   fs: Replace CURRENT_TIME_SEC with current_time() for inode timestamps ... Browse Code »

    CURRENT_TIME_SEC is not y2038 safe. current_time() will
    be transitioned to use 64 bit time along with vfs in a
    separate patch.
    There is no plan to transistion CURRENT_TIME_SEC to use
    y2038 safe time interfaces.

    current_time() will also be extended to use superblock
    range checking parameters when range checking is introduced.

    This works because alloc_super() fills in the the s_time_gran
    in super block to NSEC_PER_SEC.

    Signed-off-by: Deepa Dinamani
    Acked-by: Jan Kara
    Signed-off-by: Al Viro

    Deepa Dinamani
     

27 Sep, 2016

2 commits

  • 2773bf00a   fs: rename "rename2" i_op to "rename" ... Browse Code »

    Generated patch:

    sed -i "s/\.rename2\t/\.rename\t\t/" `git grep -wl rename2`
    sed -i "s/\brename2\b/rename/g" `git grep -wl rename2`

    Signed-off-by: Miklos Szeredi

    Miklos Szeredi
     
  • 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
     

03 May, 2016

1 commit

23 Jan, 2016

1 commit

  • 5955102c9   wrappers for ->i_mutex access ... Browse Code »

    parallel to mutex_{lock,unlock,trylock,is_locked,lock_nested},
    inode_foo(inode) being mutex_foo(&inode->i_mutex).

    Please, use those for access to ->i_mutex; over the coming cycle
    ->i_mutex will become rwsem, with ->lookup() done with it held
    only shared.

    Signed-off-by: Al Viro

    Al Viro
     

16 Apr, 2015

1 commit

23 Feb, 2015

1 commit

  • e36cb0b89   VFS: (Scripted) Convert S_ISLNK/DIR/REG(dentry->d_inode) to d_is_*(dentry) ... Browse Code »

    Convert the following where appropriate:

    (1) S_ISLNK(dentry->d_inode) to d_is_symlink(dentry).

    (2) S_ISREG(dentry->d_inode) to d_is_reg(dentry).

    (3) S_ISDIR(dentry->d_inode) to d_is_dir(dentry). This is actually more
    complicated than it appears as some calls should be converted to
    d_can_lookup() instead. The difference is whether the directory in
    question is a real dir with a ->lookup op or whether it's a fake dir with
    a ->d_automount op.

    In some circumstances, we can subsume checks for dentry->d_inode not being
    NULL into this, provided we the code isn't in a filesystem that expects
    d_inode to be NULL if the dirent really *is* negative (ie. if we're going to
    use d_inode() rather than d_backing_inode() to get the inode pointer).

    Note that the dentry type field may be set to something other than
    DCACHE_MISS_TYPE when d_inode is NULL in the case of unionmount, where the VFS
    manages the fall-through from a negative dentry to a lower layer. In such a
    case, the dentry type of the negative union dentry is set to the same as the
    type of the lower dentry.

    However, if you know d_inode is not NULL at the call site, then you can use
    the d_is_xxx() functions even in a filesystem.

    There is one further complication: a 0,0 chardev dentry may be labelled
    DCACHE_WHITEOUT_TYPE rather than DCACHE_SPECIAL_TYPE. Strictly, this was
    intended for special directory entry types that don't have attached inodes.

    The following perl+coccinelle script was used:

    use strict;

    my @callers;
    open($fd, 'git grep -l \'S_IS[A-Z].*->d_inode\' |') ||
    die "Can't grep for S_ISDIR and co. callers";
    @callers = ;
    close($fd);
    unless (@callers) {
    print "No matches\n";
    exit(0);
    }

    my @cocci = (
    '@@',
    'expression E;',
    '@@',
    '',
    '- S_ISLNK(E->d_inode->i_mode)',
    '+ d_is_symlink(E)',
    '',
    '@@',
    'expression E;',
    '@@',
    '',
    '- S_ISDIR(E->d_inode->i_mode)',
    '+ d_is_dir(E)',
    '',
    '@@',
    'expression E;',
    '@@',
    '',
    '- S_ISREG(E->d_inode->i_mode)',
    '+ d_is_reg(E)' );

    my $coccifile = "tmp.sp.cocci";
    open($fd, ">$coccifile") || die $coccifile;
    print($fd "$_\n") || die $coccifile foreach (@cocci);
    close($fd);

    foreach my $file (@callers) {
    chomp $file;
    print "Processing ", $file, "\n";
    system("spatch", "--sp-file", $coccifile, $file, "--in-place", "--no-show-diff") == 0 ||
    die "spatch failed";
    }

    [AV: overlayfs parts skipped]

    Signed-off-by: David Howells
    Signed-off-by: Al Viro

    David Howells
     

18 Feb, 2015

1 commit

  • b625032b1   fs/coda/dir.c: forward declaration clean-up ... Browse Code »

    - Move operation structures to avoid forward declarations.

    - Fix some checkpatch warnings:

    WARNING: Missing a blank line after declarations
    + struct inode *host_inode = file_inode(host_file);
    + mutex_lock(&host_inode->i_mutex);

    ERROR: that open brace { should be on the previous line
    +const struct dentry_operations coda_dentry_operations =
    +{

    ERROR: that open brace { should be on the previous line
    +const struct inode_operations coda_dir_inode_operations =
    +{

    Signed-off-by: Fabian Frederick
    Cc: Jan Harkes
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Fabian Frederick
     

12 Dec, 2014

1 commit

01 Nov, 2014

1 commit

09 Aug, 2014

1 commit

07 Jun, 2014

3 commits

09 Nov, 2013

1 commit

25 Oct, 2013

1 commit

05 Jul, 2013

1 commit

29 Jun, 2013

3 commits

23 Feb, 2013

1 commit

14 Jul, 2012

3 commits

11 Jan, 2012

2 commits

04 Jan, 2012

2 commits

02 Nov, 2011

1 commit

21 Jul, 2011

2 commits

20 Jul, 2011

1 commit

28 May, 2011

1 commit

26 May, 2011

1 commit