11 Oct, 2016

1 commit


28 Sep, 2016

1 commit

  • 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

  • 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
     
  • This is trivial to do:

    - add flags argument to foo_rename()
    - check if flags doesn't have any other than RENAME_NOREPLACE
    - assign foo_rename() to .rename2 instead of .rename

    Filesystems converted:

    affs, bfs, exofs, ext2, hfs, hfsplus, jffs2, jfs, logfs, minix, msdos,
    nilfs2, omfs, reiserfs, sysvfs, ubifs, udf, ufs, vfat.

    Signed-off-by: Miklos Szeredi
    Acked-by: Boaz Harrosh
    Acked-by: Richard Weinberger
    Acked-by: Bob Copeland
    Acked-by: Jan Kara
    Cc: Theodore Ts'o
    Cc: Jaegeuk Kim
    Cc: OGAWA Hirofumi
    Cc: Mikulas Patocka
    Cc: David Woodhouse
    Cc: Dave Kleikamp
    Cc: Ryusuke Konishi
    Cc: Christoph Hellwig

    Miklos Szeredi
     

05 Apr, 2016

1 commit

  • PAGE_CACHE_{SIZE,SHIFT,MASK,ALIGN} macros were introduced *long* time
    ago with promise that one day it will be possible to implement page
    cache with bigger chunks than PAGE_SIZE.

    This promise never materialized. And unlikely will.

    We have many places where PAGE_CACHE_SIZE assumed to be equal to
    PAGE_SIZE. And it's constant source of confusion on whether
    PAGE_CACHE_* or PAGE_* constant should be used in a particular case,
    especially on the border between fs and mm.

    Global switching to PAGE_CACHE_SIZE != PAGE_SIZE would cause to much
    breakage to be doable.

    Let's stop pretending that pages in page cache are special. They are
    not.

    The changes are pretty straight-forward:

    - << (PAGE_CACHE_SHIFT - PAGE_SHIFT) -> ;

    - >> (PAGE_CACHE_SHIFT - PAGE_SHIFT) -> ;

    - PAGE_CACHE_{SIZE,SHIFT,MASK,ALIGN} -> PAGE_{SIZE,SHIFT,MASK,ALIGN};

    - page_cache_get() -> get_page();

    - page_cache_release() -> put_page();

    This patch contains automated changes generated with coccinelle using
    script below. For some reason, coccinelle doesn't patch header files.
    I've called spatch for them manually.

    The only adjustment after coccinelle is revert of changes to
    PAGE_CAHCE_ALIGN definition: we are going to drop it later.

    There are few places in the code where coccinelle didn't reach. I'll
    fix them manually in a separate patch. Comments and documentation also
    will be addressed with the separate patch.

    virtual patch

    @@
    expression E;
    @@
    - E << (PAGE_CACHE_SHIFT - PAGE_SHIFT)
    + E

    @@
    expression E;
    @@
    - E >> (PAGE_CACHE_SHIFT - PAGE_SHIFT)
    + E

    @@
    @@
    - PAGE_CACHE_SHIFT
    + PAGE_SHIFT

    @@
    @@
    - PAGE_CACHE_SIZE
    + PAGE_SIZE

    @@
    @@
    - PAGE_CACHE_MASK
    + PAGE_MASK

    @@
    expression E;
    @@
    - PAGE_CACHE_ALIGN(E)
    + PAGE_ALIGN(E)

    @@
    expression E;
    @@
    - page_cache_get(E)
    + get_page(E)

    @@
    expression E;
    @@
    - page_cache_release(E)
    + put_page(E)

    Signed-off-by: Kirill A. Shutemov
    Acked-by: Michal Hocko
    Signed-off-by: Linus Torvalds

    Kirill A. Shutemov
     

16 Apr, 2015

1 commit


29 Jun, 2013

1 commit


14 Jul, 2012

2 commits

  • boolean "does it have to be exclusive?" flag is passed instead;
    Local filesystem should just ignore it - the object is guaranteed
    not to be there yet.

    Signed-off-by: Al Viro

    Al Viro
     
  • 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
     

21 Mar, 2012

1 commit


04 Jan, 2012

3 commits


28 May, 2011

1 commit


26 May, 2011

2 commits


03 Mar, 2011

1 commit


13 Jan, 2011

1 commit


07 Jan, 2011

1 commit

  • Reduce some branches and memory accesses in dcache lookup by adding dentry
    flags to indicate common d_ops are set, rather than having to check them.
    This saves a pointer memory access (dentry->d_op) in common path lookup
    situations, and saves another pointer load and branch in cases where we
    have d_op but not the particular operation.

    Patched with:

    git grep -E '[.>]([[:space:]])*d_op([[:space:]])*=' | xargs sed -e 's/\([^\t ]*\)->d_op = \(.*\);/d_set_d_op(\1, \2);/' -e 's/\([^\t ]*\)\.d_op = \(.*\);/d_set_d_op(\&\1, \2);/' -i

    Signed-off-by: Nick Piggin

    Nick Piggin
     

26 Oct, 2010

1 commit


10 Sep, 2010

1 commit

  • Commit 9eed1fb721c ("minix: replace inode uid,gid,mode init with helper")
    broke directory creation on minix filesystems.

    Fix it by passing the needed mode flag to inode init helper.

    Signed-off-by: Jorge Boncompte [DTI2]
    Cc: Dmitry Monakhov
    Cc: Al Viro
    Cc: [2.6.35.x]
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Jorge Boncompte [DTI2]
     

22 May, 2010

1 commit


26 Jul, 2008

1 commit


08 Feb, 2008

1 commit

  • Stop the MINIX filesystem from using iget() and read_inode(). Replace
    minix_read_inode() with minix_iget(), and call that instead of iget().
    minix_iget() then uses iget_locked() directly and returns a proper error code
    instead of an inode in the event of an error.

    minix_fill_super() returns any error incurred when getting the root inode
    instead of EINVAL.

    [akpm@linux-foundation.org: coding-style fixes]
    Signed-off-by: David Howells
    Acked-by: Christoph Hellwig
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    David Howells
     

13 Feb, 2007

1 commit

  • Many struct inode_operations in the kernel can be "const". Marking them const
    moves these to the .rodata section, which avoids false sharing with potential
    dirty data. In addition it'll catch accidental writes at compile time to
    these shared resources.

    Signed-off-by: Arjan van de Ven
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Arjan van de Ven
     

01 Oct, 2006

1 commit

  • When a filesystem decrements i_nlink to zero, it means that a write must be
    performed in order to drop the inode from the filesystem.

    We're shortly going to have keep filesystems from being remounted r/o between
    the time that this i_nlink decrement and that write occurs.

    So, add a little helper function to do the decrements. We'll tie into it in a
    bit to note when i_nlink hits zero.

    Signed-off-by: Dave Hansen
    Acked-by: Christoph Hellwig
    Cc: Al Viro
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Dave Hansen
     

23 Mar, 2006

1 commit


17 Apr, 2005

1 commit

  • Initial git repository build. I'm not bothering with the full history,
    even though we have it. We can create a separate "historical" git
    archive of that later if we want to, and in the meantime it's about
    3.2GB when imported into git - space that would just make the early
    git days unnecessarily complicated, when we don't have a lot of good
    infrastructure for it.

    Let it rip!

    Linus Torvalds