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Lines 380-391
static int proc_revalidate_dentry(struct dentry *dentry, struct nameidata *nd)
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| 380 |
return 0; |
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return 0; |
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} |
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} |
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static struct dentry_operations proc_dentry_operations = |
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static struct dentry_operations proc_dentry_shadow_operations = |
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{ |
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{ |
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.d_delete = proc_delete_dentry, |
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.d_delete = proc_delete_dentry, |
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.d_revalidate = proc_revalidate_dentry, |
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.d_revalidate = proc_revalidate_dentry, |
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}; |
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}; |
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static struct dentry_operations proc_dentry_operations = |
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{ |
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.d_delete = proc_delete_dentry, |
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}; |
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/* |
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/* |
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* Don't create negative dentries here, return -ENOENT by hand |
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* Don't create negative dentries here, return -ENOENT by hand |
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* instead. |
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* instead. |
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Lines 394-399
struct dentry *proc_lookup(struct inode * dir, struct dentry *dentry, struct nam
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{ |
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{ |
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struct inode *inode = NULL; |
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struct inode *inode = NULL; |
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struct proc_dir_entry * de; |
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struct proc_dir_entry * de; |
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int use_shadow = 0; |
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int error = -ENOENT; |
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int error = -ENOENT; |
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lock_kernel(); |
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lock_kernel(); |
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Lines 406-413
struct dentry *proc_lookup(struct inode * dir, struct dentry *dentry, struct nam
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if (!memcmp(dentry->d_name.name, de->name, de->namelen)) { |
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if (!memcmp(dentry->d_name.name, de->name, de->namelen)) { |
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unsigned int ino; |
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unsigned int ino; |
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if (de->shadow_proc) |
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if (de->shadow_proc) { |
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de = de->shadow_proc(current, de); |
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de = de->shadow_proc(current, de); |
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use_shadow = 1; |
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} |
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ino = de->low_ino; |
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ino = de->low_ino; |
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de_get(de); |
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de_get(de); |
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spin_unlock(&proc_subdir_lock); |
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spin_unlock(&proc_subdir_lock); |
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Lines 423-428
struct dentry *proc_lookup(struct inode * dir, struct dentry *dentry, struct nam
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if (inode) { |
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if (inode) { |
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dentry->d_op = &proc_dentry_operations; |
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dentry->d_op = &proc_dentry_operations; |
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dentry->d_op = use_shadow ? |
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&proc_dentry_shadow_operations : dentry->d_parent->d_op; |
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d_add(dentry, inode); |
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d_add(dentry, inode); |
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return NULL; |
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return NULL; |
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} |
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} |