[PATCH v3 03/23] filemap: Convert __filemap_fdatawait_range() to use filemap_get_folios_tag()
Matthew Wilcox
willy at infradead.org
Mon Oct 24 13:06:57 PDT 2022
On Mon, Oct 17, 2022 at 01:24:31PM -0700, Vishal Moola (Oracle) wrote:
> Converted function to use folios. This is in preparation for the removal
> of find_get_pages_range_tag().
Yes, it is, but this patch also has some nice advantages of its own:
- Removes a call to wait_on_page_writeback(), which removes a call
to compound_head()
- Removes a call to ClearPageError(), which removes another call
to compound_head()
- Removes a call to pagevec_release(), which will eventually
remove a third call to compound_head() (it doesn't today, but
one day ...)
So you can definitely say that it removes 50 bytes of text and two
calls to compound_head(). And that way, this patch justifies its
existance by itself ;-)
> Signed-off-by: Vishal Moola (Oracle) <vishal.moola at gmail.com>
Reviewed-by: Matthew Wilcox (Oracle) <willy at infradead.org>
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