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filemap: convert __filemap_fdatawait_range() to use filemap_get_folios_tag() 

Convert function to use folios.  This is in preparation for the removal of
find_get_pages_range_tag().  This change removes 2 calls to
compound_head().

Link: https://lkml.kernel.org/r/20230104211448.4804-4-vishal.moola@gmail.com
Signed-off-by: Vishal Moola (Oracle) <vishal.moola@gmail.com>
Reviewed-by: Matthew Wilcow (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Vishal Moola (Oracle) 2023-01-04 13:14:28 -08:00 committed by Andrew Morton
parent 247f9e1fee
commit 6817ef514e
1 changed files with 13 additions and 11 deletions
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24
mm/filemap.c
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@ -503,25 +503,27 @@ static void __filemap_fdatawait_range(struct address_space *mapping,
{
pgoff_t index = start_byte >> PAGE_SHIFT;
pgoff_t end = end_byte >> PAGE_SHIFT;
struct pagevec pvec;
int nr_pages;
struct folio_batch fbatch;
unsigned nr_folios;
folio_batch_init(&fbatch);
pagevec_init(&pvec);
while (index <= end) {
unsigned i;
nr_pages = pagevec_lookup_range_tag(&pvec, mapping, &index,
end, PAGECACHE_TAG_WRITEBACK);
if (!nr_pages)
nr_folios = filemap_get_folios_tag(mapping, &index, end,
PAGECACHE_TAG_WRITEBACK, &fbatch);
if (!nr_folios)
break;
for (i = 0; i < nr_pages; i++) {
struct page *page = pvec.pages[i];
for (i = 0; i < nr_folios; i++) {
struct folio *folio = fbatch.folios[i];
wait_on_page_writeback(page);
ClearPageError(page);
folio_wait_writeback(folio);
folio_clear_error(folio);
}
pagevec_release(&pvec);
folio_batch_release(&fbatch);
cond_resched();
}
}