kpageflags reads page-flags directly from the page, even when the respective flag is only updated on the headpage of a folio. Update bitchecks to use PAGEFLAG() interfaces to check folio for the referenced, dirty, lru, active, and unevictable bits. Signed-off-by: Gregory Price <gregory.price@xxxxxxxxxxxx> --- fs/proc/page.c | 21 ++++++++++++++++----- 1 file changed, 16 insertions(+), 5 deletions(-) diff --git a/fs/proc/page.c b/fs/proc/page.c index 195b077c0fac..958fb2311108 100644 --- a/fs/proc/page.c +++ b/fs/proc/page.c @@ -188,20 +188,31 @@ u64 stable_page_flags(struct page *page) u |= 1 << KPF_SLAB; u |= kpf_copy_bit(k, KPF_ERROR, PG_error); - u |= kpf_copy_bit(k, KPF_DIRTY, PG_dirty); + + if (PageDirty(page)) + u |= 1 << KPF_DIRTY; + u |= kpf_copy_bit(k, KPF_UPTODATE, PG_uptodate); u |= kpf_copy_bit(k, KPF_WRITEBACK, PG_writeback); - u |= kpf_copy_bit(k, KPF_LRU, PG_lru); - u |= kpf_copy_bit(k, KPF_REFERENCED, PG_referenced); - u |= kpf_copy_bit(k, KPF_ACTIVE, PG_active); + if (PageLRU(page)) + u |= 1 << KPF_LRU; + + if (PageReferenced(page)) + u |= 1 << KPF_REFERENCED; + + if (PageActive(page)) + u |= 1 << KPF_ACTIVE; + u |= kpf_copy_bit(k, KPF_RECLAIM, PG_reclaim); if (PageSwapCache(page)) u |= 1 << KPF_SWAPCACHE; u |= kpf_copy_bit(k, KPF_SWAPBACKED, PG_swapbacked); - u |= kpf_copy_bit(k, KPF_UNEVICTABLE, PG_unevictable); + if (PageUnevictable(page)) + u |= 1 << KPF_UNEVICTABLE; + u |= kpf_copy_bit(k, KPF_MLOCKED, PG_mlocked); #ifdef CONFIG_MEMORY_FAILURE -- 2.39.1
