6.1-stable review patch. If anyone has any objections, please let me know.
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From: Vishal Moola (Oracle) vishal.moola@gmail.com
[ Upstream commit 64ab3195ea077eaeedc8b382939c3dc5ca56f369 ]
Replace some calls with their folio equivalents. This change removes 4 calls to compound_head() and is in preparation for the removal of the try_to_release_page() wrapper.
Link: https://lkml.kernel.org/r/20221118073055.55694-3-vishal.moola@gmail.com Signed-off-by: Vishal Moola (Oracle) vishal.moola@gmail.com Cc: Matthew Wilcox willy@infradead.org Cc: Naoya Horiguchi naoya.horiguchi@nec.com Cc: Theodore Ts'o tytso@mit.edu Signed-off-by: Andrew Morton akpm@linux-foundation.org Stable-dep-of: 1898efcdbed3 ("block: update the stable_writes flag in bdev_add") Signed-off-by: Sasha Levin sashal@kernel.org --- mm/khugepaged.c | 23 ++++++++++++----------- 1 file changed, 12 insertions(+), 11 deletions(-)
diff --git a/mm/khugepaged.c b/mm/khugepaged.c index ef72d3df4b65b..6fc7db587c453 100644 --- a/mm/khugepaged.c +++ b/mm/khugepaged.c @@ -1818,6 +1818,7 @@ static int collapse_file(struct mm_struct *mm, unsigned long addr, xas_set(&xas, start); for (index = start; index < end; index++) { struct page *page = xas_next(&xas); + struct folio *folio;
VM_BUG_ON(index != xas.xa_index); if (is_shmem) { @@ -1844,8 +1845,6 @@ static int collapse_file(struct mm_struct *mm, unsigned long addr, }
if (xa_is_value(page) || !PageUptodate(page)) { - struct folio *folio; - xas_unlock_irq(&xas); /* swap in or instantiate fallocated page */ if (shmem_get_folio(mapping->host, index, @@ -1933,13 +1932,15 @@ static int collapse_file(struct mm_struct *mm, unsigned long addr, goto out_unlock; }
- if (page_mapping(page) != mapping) { + folio = page_folio(page); + + if (folio_mapping(folio) != mapping) { result = SCAN_TRUNCATED; goto out_unlock; }
- if (!is_shmem && (PageDirty(page) || - PageWriteback(page))) { + if (!is_shmem && (folio_test_dirty(folio) || + folio_test_writeback(folio))) { /* * khugepaged only works on read-only fd, so this * page is dirty because it hasn't been flushed @@ -1949,20 +1950,20 @@ static int collapse_file(struct mm_struct *mm, unsigned long addr, goto out_unlock; }
- if (isolate_lru_page(page)) { + if (folio_isolate_lru(folio)) { result = SCAN_DEL_PAGE_LRU; goto out_unlock; }
- if (page_has_private(page) && - !try_to_release_page(page, GFP_KERNEL)) { + if (folio_has_private(folio) && + !filemap_release_folio(folio, GFP_KERNEL)) { result = SCAN_PAGE_HAS_PRIVATE; - putback_lru_page(page); + folio_putback_lru(folio); goto out_unlock; }
- if (page_mapped(page)) - try_to_unmap(page_folio(page), + if (folio_mapped(folio)) + try_to_unmap(folio, TTU_IGNORE_MLOCK | TTU_BATCH_FLUSH);
xas_lock_irq(&xas);