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.TH "NTFS_WRITE_BLOCK" "9" "09 October 2005" "" ""

.SH NAME
ntfs_write_block \- write a page to the backing store
.SH SYNOPSIS
"SYNOPSIS"
.sp
\fB
.sp
int ntfs_write_block  (struct page * \fIpage\fB, struct writeback_control * \fIwbc\fB);
\fR
.SH "ARGUMENTS"
.TP
\fB\fIpage\fB\fR
page cache page to write out
.TP
\fB\fIwbc\fB\fR
writeback control structure
.SH "DESCRIPTION"
.PP
This function is for writing pages belonging to non-resident, non-mst
protected attributes to their backing store.
.PP
For a page with buffers, map and write the dirty buffers asynchronously
under page writeback. For a page without buffers, create buffers for the
page, then proceed as above.
.PP
If a page doesn't have buffers the page dirty state is definitive. If a page
does have buffers, the page dirty state is just a hint, and the buffer dirty
state is definitive. (A hint which has rules: dirty buffers against a clean
page is illegal. Other combinations are legal and need to be handled. In
particular a dirty page containing clean buffers for example.)
.PP
Return 0 on success and -errno on error.
.PP
Based on \fBntfs_read_block\fR and \fB__block_write_full_page\fR\&.