Eric Lee / smarc-fsl-linux-kernel

27 Jun, 2006

1 commit

02 Apr, 2006

1 commit

24 Mar, 2006

2 commits

  • fffb60f93   [PATCH] cpuset memory spread: slab cache format ... Browse Code »

    Rewrap the overly long source code lines resulting from the previous
    patch's addition of the slab cache flag SLAB_MEM_SPREAD. This patch
    contains only formatting changes, and no function change.

    Signed-off-by: Paul Jackson
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Paul Jackson
     
  • 4b6a9316f   [PATCH] cpuset memory spread: slab cache filesystems ... Browse Code »

    Mark file system inode and similar slab caches subject to SLAB_MEM_SPREAD
    memory spreading.

    If a slab cache is marked SLAB_MEM_SPREAD, then anytime that a task that's
    in a cpuset with the 'memory_spread_slab' option enabled goes to allocate
    from such a slab cache, the allocations are spread evenly over all the
    memory nodes (task->mems_allowed) allowed to that task, instead of favoring
    allocation on the node local to the current cpu.

    The following inode and similar caches are marked SLAB_MEM_SPREAD:

    file cache
    ==== =====
    fs/adfs/super.c adfs_inode_cache
    fs/affs/super.c affs_inode_cache
    fs/befs/linuxvfs.c befs_inode_cache
    fs/bfs/inode.c bfs_inode_cache
    fs/block_dev.c bdev_cache
    fs/cifs/cifsfs.c cifs_inode_cache
    fs/coda/inode.c coda_inode_cache
    fs/dquot.c dquot
    fs/efs/super.c efs_inode_cache
    fs/ext2/super.c ext2_inode_cache
    fs/ext2/xattr.c (fs/mbcache.c) ext2_xattr
    fs/ext3/super.c ext3_inode_cache
    fs/ext3/xattr.c (fs/mbcache.c) ext3_xattr
    fs/fat/cache.c fat_cache
    fs/fat/inode.c fat_inode_cache
    fs/freevxfs/vxfs_super.c vxfs_inode
    fs/hpfs/super.c hpfs_inode_cache
    fs/isofs/inode.c isofs_inode_cache
    fs/jffs/inode-v23.c jffs_fm
    fs/jffs2/super.c jffs2_i
    fs/jfs/super.c jfs_ip
    fs/minix/inode.c minix_inode_cache
    fs/ncpfs/inode.c ncp_inode_cache
    fs/nfs/direct.c nfs_direct_cache
    fs/nfs/inode.c nfs_inode_cache
    fs/ntfs/super.c ntfs_big_inode_cache_name
    fs/ntfs/super.c ntfs_inode_cache
    fs/ocfs2/dlm/dlmfs.c dlmfs_inode_cache
    fs/ocfs2/super.c ocfs2_inode_cache
    fs/proc/inode.c proc_inode_cache
    fs/qnx4/inode.c qnx4_inode_cache
    fs/reiserfs/super.c reiser_inode_cache
    fs/romfs/inode.c romfs_inode_cache
    fs/smbfs/inode.c smb_inode_cache
    fs/sysv/inode.c sysv_inode_cache
    fs/udf/super.c udf_inode_cache
    fs/ufs/super.c ufs_inode_cache
    net/socket.c sock_inode_cache
    net/sunrpc/rpc_pipe.c rpc_inode_cache

    The choice of which slab caches to so mark was quite simple. I marked
    those already marked SLAB_RECLAIM_ACCOUNT, except for fs/xfs, dentry_cache,
    inode_cache, and buffer_head, which were marked in a previous patch. Even
    though SLAB_RECLAIM_ACCOUNT is for a different purpose, it marks the same
    potentially large file system i/o related slab caches as we need for memory
    spreading.

    Given that the rule now becomes "wherever you would have used a
    SLAB_RECLAIM_ACCOUNT slab cache flag before (usually the inode cache), use
    the SLAB_MEM_SPREAD flag too", this should be easy enough to maintain.
    Future file system writers will just copy one of the existing file system
    slab cache setups and tend to get it right without thinking.

    Signed-off-by: Paul Jackson
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Paul Jackson
     

23 Mar, 2006

2 commits

  • d3be915fc   [PATCH] sem2mutex: quota ... Browse Code »

    Semaphore to mutex conversion.

    The conversion was generated via scripts, and the result was validated
    automatically via a script as well.

    Signed-off-by: Ingo Molnar
    Cc: Jan Kara
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Ingo Molnar
     
  • 6362e4d4e   [PATCH] Fix oops in invalidate_dquots() ... Browse Code »

    When quota is being turned off we assumed that all the references to dquots
    were already dropped. That need not be true as inodes being deleted are
    not on superblock's inodes list and hence we need not reach it when
    removing quota references from inodes. So invalidate_dquots() has to wait
    for all the users of dquots (as quota is already marked as turned off, no
    new references can be acquired and so this is bound to happen rather
    early). When we do this, we can also remove the iprune_sem locking as it
    was protecting us against exactly the same problem when freeing inodes
    icache memory.

    Signed-off-by: Jan Kara
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Jan Kara
     

12 Jan, 2006

1 commit

10 Jan, 2006

1 commit

29 Nov, 2005

1 commit

08 Nov, 2005

1 commit

  • 7b7b1ace2   [PATCH] saner handling of auto_acct_off() and DQUOT_OFF() in umount ... Browse Code »

    The way we currently deal with quota and process accounting that might
    keep vfsmount busy at umount time is inherently broken; we try to turn
    them off just in case (not quite correctly, at that) and

    a) pray umount doesn't fail (otherwise they'll stay turned off)
    b) pray nobody doesn anything funny just as we turn quota off

    Moreover, LSM provides hooks for doing the same sort of broken logics.

    The proper way to deal with that is to introduce the second kind of
    reference to vfsmount. Semantics:

    - when the last normal reference is dropped, all special ones are
    converted to normal ones and if there had been any, cleanup is done.
    - normal reference can be cloned into a special one
    - special reference can be converted to normal one; that's a no-op if
    we'd already passed the point of no return (i.e. mntput() had
    converted special references to normal and started cleanup).

    The way it works: e.g. starting process accounting converts the vfsmount
    reference pinned by the opened file into special one and turns it back
    to normal when it gets shut down; acct_auto_close() is done when no
    normal references are left. That way it does *not* obstruct umount(2)
    and it silently gets turned off when the last normal reference to
    vfsmount is gone. Which is exactly what we want...

    The same should be done by LSM module that holds some internal
    references to vfsmount and wants to shut them down on umount - it should
    make them special and security_sb_umount_close() will be called exactly
    when the last normal reference to vfsmount is gone.

    quota handling is even simpler - we don't use normal file IO anymore, so
    there's no need to hold vfsmounts at all. DQUOT_OFF() is done from
    deactivate_super(), where it really belongs.

    Signed-off-by: Al Viro
    Signed-off-by: Linus Torvalds

    Al Viro
     

07 Nov, 2005

1 commit

  • be586bab8   [PATCH] quota: small cleanups ... Browse Code »

    - "extern inline" -> "static inline"

    - every file should #include the headers containing the prototypes for
    it's global functions

    Signed-off-by: Adrian Bunk
    Signed-off-by: Jan Kara
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Adrian Bunk
     

31 Oct, 2005

1 commit

  • 2f5120166   [PATCH] reduce sizeof(struct file) ... Browse Code »

    Now that RCU applied on 'struct file' seems stable, we can place f_rcuhead
    in a memory location that is not anymore used at call_rcu(&f->f_rcuhead,
    file_free_rcu) time, to reduce the size of this critical kernel object.

    The trick I used is to move f_rcuhead and f_list in an union called f_u

    The callers are changed so that f_rcuhead becomes f_u.fu_rcuhead and f_list
    becomes f_u.f_list

    Signed-off-by: Eric Dumazet
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Eric Dumazet
     

28 Oct, 2005

1 commit

  • 27496a8c6   [PATCH] gfp_t: fs/* ... Browse Code »

    - ->releasepage() annotated (s/int/gfp_t), instances updated
    - missing gfp_t in fs/* added
    - fixed misannotation from the original sweep caught by bitwise checks:
    XFS used __nocast both for gfp_t and for flags used by XFS allocator.
    The latter left with unsigned int __nocast; we might want to add a
    different type for those but for now let's leave them alone. That,
    BTW, is a case when __nocast use had been actively confusing - it had
    been used in the same code for two different and similar types, with
    no way to catch misuses. Switch of gfp_t to bitwise had caught that
    immediately...

    One tricky bit is left alone to be dealt with later - mapping->flags is
    a mix of gfp_t and error indications. Left alone for now.

    Signed-off-by: Al Viro
    Signed-off-by: Linus Torvalds

    Al Viro
     

26 Jun, 2005

1 commit

24 Jun, 2005

2 commits

17 Apr, 2005

2 commits

  • 31e7ad6ac   [PATCH] quota: fix possible oops on quotaoff ... Browse Code »

    Remove dquot structures from quota file on quotaon - quota code does not
    expect them to be there.

    Signed-off-by: Jan Kara
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Jan Kara
     
  • 1da177e4c   Linux-2.6.12-rc2 ... Browse Code »

    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