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khugepage: replace try_to_release_page() with filemap_release_folio() 

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>
This commit is contained in:
Vishal Moola (Oracle) 2022-11-17 23:30:53 -08:00 committed by Andrew Morton
parent 6dd8fe86fa
commit 64ab3195ea
1 changed files with 12 additions and 11 deletions
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23
mm/khugepaged.c
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@ -1789,6 +1789,7 @@ 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) {
@ -1815,8 +1816,6 @@ 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,
@ -1904,13 +1903,15 @@ 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
@ -1920,20 +1921,20 @@ 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);