lustre/kernel_patches/patches/ext3-raw-lookup-pdirops-2.4.24.patch

   1  fs/ext3/namei.c    |   31 +++++++++++++++++++++++++++++++
   2  include/linux/fs.h |    1 +
   3  2 files changed, 32 insertions(+)
   4
   5 Index: lum/include/linux/fs.h
   6 ===================================================================
   7 --- lum.orig/include/linux/fs.h 2004-06-07 17:52:41.000000000 -0400
   8 +++ lum/include/linux/fs.h      2004-06-07 17:56:55.000000000 -0400
   9 @@ -904,6 +904,7 @@
  10         int (*create) (struct inode *,struct dentry *,int);
  11         int (*create_it) (struct inode *,struct dentry *,int, struct lookup_intent *);
  12         struct dentry * (*lookup) (struct inode *,struct dentry *);
  13 +       int (*lookup_raw) (struct inode *, const char *, int, ino_t *);
  14         struct dentry * (*lookup_it) (struct inode *,struct dentry *, struct nameidata *, struct lookup_intent *, int flags);
  15         int (*link) (struct dentry *,struct inode *,struct dentry *);
  16         int (*link_raw) (struct nameidata *,struct nameidata *);
  17 Index: lum/fs/ext3/namei.c
  18 ===================================================================
  19 --- lum.orig/fs/ext3/namei.c    2004-06-07 17:52:41.000000000 -0400
  20 +++ lum/fs/ext3/namei.c 2004-06-07 17:56:31.000000000 -0400
  21 @@ -1128,6 +1128,36 @@
  22         return iopen_connect_dentry(dentry, inode, 1);
  23  }
  24
  25 +static int ext3_lookup_raw(struct inode *dir, const char *name,
  26 +                               int len, ino_t *data)
  27 +{
  28 +       struct ext3_dir_entry_2 *de;
  29 +       struct buffer_head *bh;
  30 +       struct dentry parent;
  31 +       struct dentry dentry;
  32 +       void *lock = NULL;
  33 +
  34 +       if (len > EXT3_NAME_LEN)
  35 +               return -ENAMETOOLONG;
  36 +
  37 +       parent.d_inode = dir;
  38 +       dentry.d_parent = &parent;
  39 +       dentry.d_name.name = name;
  40 +       dentry.d_name.len = len;
  41 +
  42 +       bh = ext3_find_entry(&dentry, &de, 0, &lock);
  43 +       if (bh) {
  44 +               unsigned long ino = le32_to_cpu(de->inode);
  45 +               ext3_unlock_htree(dir, lock);
  46 +               brelse (bh);
  47 +               if (data)
  48 +                       *data = ino;
  49 +               return 0; /* found name */
  50 +       }
  51 +
  52 +       return -ENOENT;
  53 +}
  54 +
  55  #define S_SHIFT 12
  56  static unsigned char ext3_type_by_mode[S_IFMT >> S_SHIFT] = {
  57         [S_IFREG >> S_SHIFT]    EXT3_FT_REG_FILE,
  58 @@ -2772,6 +2802,7 @@
  59  struct inode_operations ext3_dir_inode_operations = {
  60         create:         ext3_create,            /* BKL held */
  61         lookup:         ext3_lookup,            /* BKL held */
  62 +       lookup_raw:     ext3_lookup_raw,        /* BKL held */
  63         link:           ext3_link,              /* BKL held */
  64         unlink:         ext3_unlink,            /* BKL held */
  65         symlink:        ext3_symlink,           /* BKL held */