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.TH "NTFS_MFT_DATA_EXTEND_ALLOCATION_NOLOCK" "9" "09 October 2005" "" ""

.SH NAME
ntfs_mft_data_extend_allocation_nolock \- extend mft data attribute
.SH SYNOPSIS
"SYNOPSIS"
.sp
\fB
.sp
int ntfs_mft_data_extend_allocation_nolock  (ntfs_volume * \fIvol\fB);
\fR
.SH "ARGUMENTS"
.TP
\fB\fIvol\fB\fR
volume on which to extend the mft data attribute
.SH "DESCRIPTION"
.PP
Extend the mft data attribute on the ntfs volume \fIvol\fR by 16 mft records
worth of clusters or if not enough space for this by one mft record worth
of clusters.
.SH "NOTE"
.PP
Only changes allocated_size, i.e. does not touch initialized_size or
data_size.
.PP
Return 0 on success and -errno on error.
.SH "LOCKING"
.PP
- Caller must hold vol->mftbmp_lock for writing.
- This function takes NTFS_I(vol->mft_ino)->runlist.lock for
writing and releases it before returning.
- This function calls functions which take vol->lcnbmp_lock for
writing and release it before returning.