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gfs2: Convert gfs2_aspace_writepage() to use a folio 

Convert the incoming struct page to a folio and use it throughout.
Saves six calls to compound_head().

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
This commit is contained in:
Matthew Wilcox (Oracle) 2024-04-03 18:23:51 +01:00 committed by Andreas Gruenbacher
parent b844048011
commit 50fabd42cb
1 changed files with 8 additions and 8 deletions
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16
fs/gfs2/meta_io.c
View File

@ -32,14 +32,14 @@
static int gfs2_aspace_writepage(struct page *page, struct writeback_control *wbc)
{
struct folio *folio = page_folio(page);
struct buffer_head *bh, *head;
int nr_underway = 0;
blk_opf_t write_flags = REQ_META | REQ_PRIO | wbc_to_write_flags(wbc);
BUG_ON(!PageLocked(page));
BUG_ON(!page_has_buffers(page));
BUG_ON(!folio_test_locked(folio));
head = page_buffers(page);
head = folio_buffers(folio);
bh = head;
do {
@ -55,7 +55,7 @@ static int gfs2_aspace_writepage(struct page *page, struct writeback_control *wb
if (wbc->sync_mode != WB_SYNC_NONE) {
lock_buffer(bh);
} else if (!trylock_buffer(bh)) {
redirty_page_for_writepage(wbc, page);
folio_redirty_for_writepage(wbc, folio);
continue;
}
if (test_clear_buffer_dirty(bh)) {
@ -69,8 +69,8 @@ static int gfs2_aspace_writepage(struct page *page, struct writeback_control *wb
* The page and its buffers are protected by PageWriteback(), so we can
* drop the bh refcounts early.
*/
BUG_ON(PageWriteback(page));
set_page_writeback(page);
BUG_ON(folio_test_writeback(folio));
folio_start_writeback(folio);
do {
struct buffer_head *next = bh->b_this_page;
@ -80,10 +80,10 @@ static int gfs2_aspace_writepage(struct page *page, struct writeback_control *wb
}
bh = next;
} while (bh != head);
unlock_page(page);
folio_unlock(folio);
if (nr_underway == 0)
end_page_writeback(page);
folio_end_writeback(folio);
return 0;
}