alloc_tag_sub() takes bytes as opposed to number of pages as argument.
Currently pgalloc_tag_copy() passes the number of pages. This fix passes
the correct unit, which is the number of bytes allocated.
Fixes: e0a955bf7f61 ("mm/codetag: add pgalloc_tag_copy()")
Signed-off-by: Sourav Panda <souravpanda@xxxxxxxxxx>
Acked-by: Suren Baghdasaryan <surenb@xxxxxxxxxx>
Reviewed-by: Pasha Tatashin <pasha.tatashin@xxxxxxxxxx>
---
Changelog:
Added Acked-by: Suren Baghdasaryan <surenb@xxxxxxxxxx>
Added Reviewed-by: Pasha Tatashin <pasha.tatashin@xxxxxxxxxx>
Fixed the nit pointed by Wei in the commit message
v1:
https://lore.kernel.org/all/20241022205622.133697-1-souravpanda@xxxxxxxxxx/
---
include/linux/mm.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/mm.h b/include/linux/mm.h
index ecf63d2b0582..2890001c8b97 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -4203,7 +4203,7 @@ static inline void pgalloc_tag_copy(struct folio *new, struct folio *old)
/* Clear the old ref to the original allocation tag. */
clear_page_tag_ref(&old->page);
/* Decrement the counters of the tag on get_new_folio. */
- alloc_tag_sub(ref, folio_nr_pages(new));
+ alloc_tag_sub(ref, folio_size(new));
__alloc_tag_ref_set(ref, tag);
--
2.47.0.105.g07ac214952-goog
