diff options
| author | Matthew Wilcox (Oracle) <willy@infradead.org> | 2023-08-16 16:11:58 +0100 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-08-21 14:28:45 -0700 |
| commit | ebc1baf5c9b46c2240c580a2fd992b2e48606dfa (patch) | |
| tree | c85f3ec8285498ef68bc6f63cdf63825647391d4 /kernel | |
| parent | c704ae9797843402436190a6f094a035237fd012 (diff) | |
mm: free up a word in the first tail page
Store the folio order in the low byte of the flags word in the first tail
page. This frees up the word that was being used to store the order and
dtor bytes previously.
Link: https://lkml.kernel.org/r/20230816151201.3655946-11-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Sidhartha Kumar <sidhartha.kumar@oracle.com>
Cc: Yanteng Si <siyanteng@loongson.cn>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/crash_core.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/kernel/crash_core.c b/kernel/crash_core.c index 934dd86e19f5..693445e1f7f6 100644 --- a/kernel/crash_core.c +++ b/kernel/crash_core.c @@ -455,7 +455,6 @@ static int __init crash_save_vmcoreinfo_init(void) VMCOREINFO_OFFSET(page, lru); VMCOREINFO_OFFSET(page, _mapcount); VMCOREINFO_OFFSET(page, private); - VMCOREINFO_OFFSET(folio, _folio_order); VMCOREINFO_OFFSET(page, compound_head); VMCOREINFO_OFFSET(pglist_data, node_zones); VMCOREINFO_OFFSET(pglist_data, nr_zones); |