Re: [PATCH 001 of 3] md: Change md/bitmap file handling to use bmapto file blocks-fix

[Andrew Morton]

NeilBrown <neilb@xxxxxxx> wrote:
>
>  +		do_sync_file_range(file, 0, LLONG_MAX,
>  +				   SYNC_FILE_RANGE_WRITE |
>  +				   SYNC_FILE_RANGE_WAIT_AFTER);

That needs a SYNC_FILE_RANGE_WAIT_BEFORE too.  Otherwise any dirty,
under-writeback pages will remain dirty.  I'll make that change.
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