'\" t
.\"     Title: vfree
.\"    Author: [FIXME: author] [see http://docbook.sf.net/el/author]
.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
.\"      Date: May 2018
.\"    Manual: Memory Management in Linux
.\"    Source: Kernel Hackers Manual 3.16.56
.\"  Language: English
.\"
.TH "VFREE" "9" "May 2018" "Kernel Hackers Manual 3\&.16\&" "Memory Management in Linux"
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.SH "NAME"
vfree \- release memory allocated by \fBvmalloc\fR
.SH "SYNOPSIS"
.HP \w'void\ vfree('u
.BI "void vfree(const\ void\ *\ " "addr" ");"
.SH "ARGUMENTS"
.PP
\fIaddr\fR
.RS 4
memory base address
.RE
.SH "DESCRIPTION"
.PP
Free the virtually continuous memory area starting at
\fIaddr\fR, as obtained from
\fBvmalloc\fR,
\fBvmalloc_32\fR
or
\fB__vmalloc\fR\&. If
\fIaddr\fR
is NULL, no operation is performed\&.
.PP
Must not be called in NMI context (strictly speaking, only if we don\*(Aqt have CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG, but making the calling conventions for
\fBvfree\fR
arch\-depenedent would be a really bad idea)
.SH "NOTE"
.PP
assumes that the object at *addr has a size >= sizeof(llist_node)
.SH "COPYRIGHT"
.br