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Subject[PATCH 2/4] proc: Convert smaps_page_accumulate to use a folio
Date
Replaces three calls to compound_head() with one.  Shrinks the function
from 2614 bytes to 1112 bytes in an allmodconfig build.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
---
fs/proc/task_mmu.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index 5260a2788f74..2a3133dd47b1 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -414,11 +414,12 @@ static void smaps_page_accumulate(struct mem_size_stats *mss,
struct page *page, unsigned long size, unsigned long pss,
bool dirty, bool locked, bool private)
{
+ struct folio *folio = page_folio(page);
mss->pss += pss;

- if (PageAnon(page))
+ if (folio_test_anon(folio))
mss->pss_anon += pss;
- else if (PageSwapBacked(page))
+ else if (folio_test_swapbacked(folio))
mss->pss_shmem += pss;
else
mss->pss_file += pss;
@@ -426,7 +427,7 @@ static void smaps_page_accumulate(struct mem_size_stats *mss,
if (locked)
mss->pss_locked += pss;

- if (dirty || PageDirty(page)) {
+ if (dirty || folio_test_dirty(folio)) {
mss->pss_dirty += pss;
if (private)
mss->private_dirty += size;
--
2.43.0

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