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btrfs: convert extent_write_cache_pages() to use filemap_get_folios_tag()

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Convert function to use folios throughout.  This is in preparation for the
removal of find_get_pages_range_tag().  Now also supports large folios.

Link: https://lkml.kernel.org/r/20230104211448.4804-8-vishal.moola@gmail.com
Signed-off-by: Vishal Moola (Oracle) <vishal.moola@gmail.com>
Acked-by: David Sterba <dsterba@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Vishal Moola (Oracle) 2023-01-04 13:14:32 -08:00 committed by Andrew Morton
parent 51c5cd3baf
commit 9f50fd2e92
1 changed files with 19 additions and 19 deletions
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38
fs/btrfs/extent_io.c
View file

@ -2993,8 +2993,8 @@ static int extent_write_cache_pages(struct address_space *mapping,
int ret = 0;
int done = 0;
int nr_to_write_done = 0;
struct pagevec pvec;
int nr_pages;
struct folio_batch fbatch;
unsigned int nr_folios;
pgoff_t index;
pgoff_t end; /* Inclusive */
pgoff_t done_index;
@ -3014,7 +3014,7 @@ static int extent_write_cache_pages(struct address_space *mapping,
if (!igrab(inode))
return 0;
pagevec_init(&pvec);
folio_batch_init(&fbatch);
if (wbc->range_cyclic) {
index = mapping->writeback_index; /* Start from prev offset */
end = -1;
@ -3052,14 +3052,14 @@ static int extent_write_cache_pages(struct address_space *mapping,
tag_pages_for_writeback(mapping, index, end);
done_index = index;
while (!done && !nr_to_write_done && (index <= end) &&
(nr_pages = pagevec_lookup_range_tag(&pvec, mapping,
&index, end, tag))) {
(nr_folios = filemap_get_folios_tag(mapping, &index,
end, tag, &fbatch))) {
unsigned i;
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];
done_index = page->index + 1;
done_index = folio->index + folio_nr_pages(folio);
/*
* At this point we hold neither the i_pages lock nor
* the page lock: the page may be truncated or
@ -3067,29 +3067,29 @@ static int extent_write_cache_pages(struct address_space *mapping,
* or even swizzled back from swapper_space to
* tmpfs file mapping
*/
if (!trylock_page(page)) {
if (!folio_trylock(folio)) {
submit_write_bio(bio_ctrl, 0);
lock_page(page);
folio_lock(folio);
}
if (unlikely(page->mapping != mapping)) {
unlock_page(page);
if (unlikely(folio->mapping != mapping)) {
folio_unlock(folio);
continue;
}
if (wbc->sync_mode != WB_SYNC_NONE) {
if (PageWriteback(page))
if (folio_test_writeback(folio))
submit_write_bio(bio_ctrl, 0);
wait_on_page_writeback(page);
folio_wait_writeback(folio);
}
if (PageWriteback(page) ||
!clear_page_dirty_for_io(page)) {
unlock_page(page);
if (folio_test_writeback(folio) ||
!folio_clear_dirty_for_io(folio)) {
folio_unlock(folio);
continue;
}
ret = __extent_writepage(page, wbc, bio_ctrl);
ret = __extent_writepage(&folio->page, wbc, bio_ctrl);
if (ret < 0) {
done = 1;
break;
@ -3102,7 +3102,7 @@ static int extent_write_cache_pages(struct address_space *mapping,
*/
nr_to_write_done = wbc->nr_to_write <= 0;
}
pagevec_release(&pvec);
folio_batch_release(&fbatch);
cond_resched();
}
if (!scanned && !done) {