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

   1  fs/ext3/namei.c    |   29 +++++++++++++++++++++++++++++
   2  include/linux/fs.h |    1 +
   3  2 files changed, 30 insertions(+)
   4
   5 --- linux-2.4.20-vanilla/include/linux/fs.h~ext3-raw-lookup     2003-09-13 17:03:05.000000000 +0400
   6 +++ linux-2.4.20-vanilla-alexey/include/linux/fs.h      2003-09-15 10:16:38.000000000 +0400
   7 @@ -865,6 +865,7 @@ struct inode_operations {
   8         int (*create) (struct inode *,struct dentry *,int);
   9         int (*create_it) (struct inode *,struct dentry *,int, struct lookup_intent *);
  10         struct dentry * (*lookup) (struct inode *,struct dentry *);
  11 +       int (*lookup_raw) (struct inode *, const char *, int, ino_t *);
  12         struct dentry * (*lookup_it) (struct inode *,struct dentry *, struct lookup_intent *, int flags);
  13         int (*link) (struct dentry *,struct inode *,struct dentry *);
  14         int (*link_raw) (struct nameidata *,struct nameidata *);
  15 --- linux-2.4.20-vanilla/fs/ext3/namei.c~ext3-raw-lookup        2003-09-13 17:03:05.000000000 +0400
  16 +++ linux-2.4.20-vanilla-alexey/fs/ext3/namei.c 2003-09-15 10:18:52.000000000 +0400
  17 @@ -957,6 +957,34 @@ static struct dentry *ext3_lookup(struct
  18         return NULL;
  19  }
  20
  21 +static int ext3_lookup_raw(struct inode *dir, const char *name,
  22 +                               int len, ino_t *data)
  23 +{
  24 +       struct ext3_dir_entry_2 *de;
  25 +       struct buffer_head *bh;
  26 +       struct dentry parent;
  27 +       struct dentry dentry;
  28 +
  29 +       if (len > EXT3_NAME_LEN)
  30 +               return -ENAMETOOLONG;
  31 +
  32 +       parent.d_inode = dir;
  33 +       dentry.d_parent = &parent;
  34 +       dentry.d_name.name = name;
  35 +       dentry.d_name.len = len;
  36 +
  37 +       bh = ext3_find_entry(&dentry, &de);
  38 +       if (bh) {
  39 +               unsigned long ino = le32_to_cpu(de->inode);
  40 +               brelse (bh);
  41 +               if (data)
  42 +                       *data = ino;
  43 +               return 0; /* found name */
  44 +       }
  45 +
  46 +       return -ENOENT;
  47 +}
  48 +
  49  #define S_SHIFT 12
  50  static unsigned char ext3_type_by_mode[S_IFMT >> S_SHIFT] = {
  51         [S_IFREG >> S_SHIFT]    EXT3_FT_REG_FILE,
  52 @@ -2247,6 +2275,7 @@ end_rename:
  53  struct inode_operations ext3_dir_inode_operations = {
  54         create:         ext3_create,            /* BKL held */
  55         lookup:         ext3_lookup,            /* BKL held */
  56 +       lookup_raw:     ext3_lookup_raw,        /* BKL held */
  57         link:           ext3_link,              /* BKL held */
  58         unlink:         ext3_unlink,            /* BKL held */
  59         symlink:        ext3_symlink,           /* BKL held */
  60
  61 _