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Code Issues Releases Wiki Activity

mm: page_owner: fix wrong information in dump_page_owner 

With commit ea4b5b33bf ("mm,page_owner: update metadata for tail
pages"), new API __update_page_owner_handle was introduced and arguemnt
was passed in wrong order from __set_page_owner and thus page_owner is
giving wrong data.

[   15.982420] page last allocated via order 0, migratetype Unmovable, gfp_mask 0xcc0(GFP_KERNEL), pid 80, tgid -1210279584 (insmod), ts 80, free_ts 0

Fixing the same.
Correct output:
[   14.556482] page last allocated via order 0, migratetype Unmovable, gfp_mask 0xcc0(GFP_KERNEL), pid 80, tgid 80 (insmod), ts 14552004992, free_ts 0

Link: https://lkml.kernel.org/r/20240424111838.3782931-1-hariom1.p@samsung.com
Fixes: ea4b5b33bf ("mm,page_owner: update metadata for tail pages")
Signed-off-by: Maninder Singh <maninder1.s@samsung.com>
Signed-off-by: Hariom Panthi <hariom1.p@samsung.com>
Acked-by: Oscar Salvador <osalvador@suse.de>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Lorenzo Stoakes <lstoakes@gmail.com>
Cc: Rohit Thapliyal <r.thapliyal@samsung.com>
Cc: Uladzislau Rezki (Sony) <urezki@gmail.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Maninder Singh 2024-04-24 16:48:37 +05:30 committed by Andrew Morton
parent 955a923d28
commit e7af4014b4
1 changed files with 1 additions and 1 deletions
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2
mm/page_owner.c
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@ -328,7 +328,7 @@ noinline void __set_page_owner(struct page *page, unsigned short order,
if (unlikely(!page_ext))
return;
__update_page_owner_handle(page_ext, handle, order, gfp_mask, -1,
current->pid, current->tgid, ts_nsec,
ts_nsec, current->pid, current->tgid,
current->comm);
page_ext_put(page_ext);
inc_stack_record_count(handle, gfp_mask, 1 << order);