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swap: remove some calls to compound_head() in swap_readpage()

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Replace six implicit calls to compound_head() with one call to
page_folio().

Link: https://lkml.kernel.org/r/20230715042343.434588-5-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Domenico Cerasuolo <cerasuolodomenico@gmail.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Nhat Pham <nphamcs@gmail.com>
Cc: Vitaly Wool <vitaly.wool@konsulko.com>
Cc: Yosry Ahmed <yosryahmed@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Matthew Wilcox (Oracle) 2023-07-15 05:23:42 +01:00 committed by Andrew Morton
parent 074e3e262a
commit fbcec6a3a0
1 changed files with 7 additions and 6 deletions
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13
mm/page_io.c
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@ -492,14 +492,15 @@ static void swap_readpage_bdev_async(struct page *page,
void swap_readpage(struct page *page, bool synchronous, struct swap_iocb **plug)
{
struct folio *folio = page_folio(page);
struct swap_info_struct *sis = page_swap_info(page);
bool workingset = PageWorkingset(page);
bool workingset = folio_test_workingset(folio);
unsigned long pflags;
bool in_thrashing;
VM_BUG_ON_PAGE(!PageSwapCache(page) && !synchronous, page);
VM_BUG_ON_PAGE(!PageLocked(page), page);
VM_BUG_ON_PAGE(PageUptodate(page), page);
VM_BUG_ON_FOLIO(!folio_test_swapcache(folio) && !synchronous, folio);
VM_BUG_ON_FOLIO(!folio_test_locked(folio), folio);
VM_BUG_ON_FOLIO(folio_test_uptodate(folio), folio);
/*
* Count submission time as memory stall and delay. When the device
@ -513,8 +514,8 @@ void swap_readpage(struct page *page, bool synchronous, struct swap_iocb **plug)
delayacct_swapin_start();
if (zswap_load(page)) {
SetPageUptodate(page);
unlock_page(page);
folio_mark_uptodate(folio);
folio_unlock(folio);
} else if (data_race(sis->flags & SWP_FS_OPS)) {
swap_readpage_fs(page, plug);
} else if (synchronous || (sis->flags & SWP_SYNCHRONOUS_IO)) {