diff options
Diffstat (limited to 'fs/dcache.c')
| -rw-r--r-- | fs/dcache.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/fs/dcache.c b/fs/dcache.c index 9ceab142896f..df11bbba0342 100644 --- a/fs/dcache.c +++ b/fs/dcache.c @@ -3196,6 +3196,25 @@ void d_mark_tmpfile(struct file *file, struct inode *inode) } EXPORT_SYMBOL(d_mark_tmpfile); +void d_mark_tmpfile_name(struct file *file, const struct qstr *name) +{ + struct dentry *dentry = file->f_path.dentry; + char *dname = dentry->d_shortname.string; + + BUG_ON(dname_external(dentry)); + BUG_ON(d_really_is_positive(dentry)); + BUG_ON(!d_unlinked(dentry)); + BUG_ON(name->len > DNAME_INLINE_LEN - 1); + spin_lock(&dentry->d_parent->d_lock); + spin_lock_nested(&dentry->d_lock, DENTRY_D_LOCK_NESTED); + dentry->__d_name.len = name->len; + memcpy(dname, name->name, name->len); + dname[name->len] = '\0'; + spin_unlock(&dentry->d_lock); + spin_unlock(&dentry->d_parent->d_lock); +} +EXPORT_SYMBOL(d_mark_tmpfile_name); + void d_tmpfile(struct file *file, struct inode *inode) { struct dentry *dentry = file->f_path.dentry; |