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.TH "GRAB_SUPER" "9" "09 October 2005" "" ""

.SH NAME
grab_super \- acquire an active reference
.SH SYNOPSIS
"SYNOPSIS"
.sp
\fB
.sp
int grab_super  (struct super_block * \fIs\fB);
\fR
.SH "ARGUMENTS"
.TP
\fB\fIs\fB\fR
reference we are trying to make active
.SH "DESCRIPTION"
.PP
Tries to acquire an active reference.  \fBgrab_super\fR is used when we
had just found a superblock in super_blocks or fs_type->fs_supers
and want to turn it into a full-blown active reference.  \fBgrab_super\fR
is called with sb_lock held and drops it.  Returns 1 in case of
success, 0 if we had failed (superblock contents was already dead or
dying when \fBgrab_super\fR had been called).