'\" t .\" Title: d_really_is_negative .\" Author: [FIXME: author] [see http://docbook.sf.net/el/author] .\" Generator: DocBook XSL Stylesheets v1.79.1 .\" Date: January 2017 .\" Manual: The Linux VFS .\" Source: Kernel Hackers Manual 4.8.15 .\" Language: English .\" .TH "D_REALLY_IS_NEGATIVE" "9" "January 2017" "Kernel Hackers Manual 4\&.8\&." "The Linux VFS" .\" ----------------------------------------------------------------- .\" * Define some portability stuff .\" ----------------------------------------------------------------- .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .\" http://bugs.debian.org/507673 .\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .ie \n(.g .ds Aq \(aq .el .ds Aq ' .\" ----------------------------------------------------------------- .\" * set default formatting .\" ----------------------------------------------------------------- .\" disable hyphenation .nh .\" disable justification (adjust text to left margin only) .ad l .\" ----------------------------------------------------------------- .\" * MAIN CONTENT STARTS HERE * .\" ----------------------------------------------------------------- .SH "NAME" d_really_is_negative \- Determine if a dentry is really negative (ignoring fallthroughs) .SH "SYNOPSIS" .HP \w'bool\ d_really_is_negative('u .BI "bool d_really_is_negative(const\ struct\ dentry\ *\ " "dentry" ");" .SH "ARGUMENTS" .PP \fIdentry\fR .RS 4 The dentry in question .RE .SH "DESCRIPTION" .PP Returns true if the dentry represents either an absent name or a name that doesn\*(Aqt map to an inode (ie\&. \->d_inode is NULL)\&. The dentry could represent a true miss, a whiteout that isn\*(Aqt represented by a 0,0 chardev or a fallthrough marker in an opaque directory\&. .PP Note! (1) This should be used *only* by a filesystem to examine its own dentries\&. It should not be used to look at some other filesystem\*(Aqs dentries\&. (2) It should also be used in combination with \fBd_inode\fR to get the inode\&. (3) The dentry may have something attached to \->d_lower and the type field of the flags may be set to something other than miss or whiteout\&. .SH "COPYRIGHT" .br