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Diffstat (limited to 'doc/tutorial.tex')
| -rw-r--r-- | doc/tutorial.tex | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/doc/tutorial.tex b/doc/tutorial.tex index 609850ab..2db521b6 100644 --- a/doc/tutorial.tex +++ b/doc/tutorial.tex @@ -450,13 +450,13 @@ This example also demonstrates pasting numeric command-line arguments probe kernel.function ("vfs_write"), kernel.function ("vfs_read") { -%( kernel_v >= "2.6.20" %? - dev_nr = $file->f_path->dentry->d_inode->i_sb->s_dev - inode_nr = $file->f_path->dentry->d_inode->i_ino -%: - dev_nr = $file->f_dentry->d_inode->i_sb->s_dev - inode_nr = $file->f_dentry->d_inode->i_ino -%) + if (@defined($file->f_path->dentry)) { + dev_nr = $file->f_path->dentry->d_inode->i_sb->s_dev + inode_nr = $file->f_path->dentry->d_inode->i_ino + } else { + dev_nr = $file->f_dentry->d_inode->i_sb->s_dev + inode_nr = $file->f_dentry->d_inode->i_ino + } if (dev_nr == ($1 << 20 | $2) # major/minor device && inode_nr == $3) |