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authorHyeonggon Yoo <42.hyeyoo@gmail.com>2021-12-12 06:52:41 +0000
committerVlastimil Babka <vbabka@suse.cz>2022-01-06 12:27:28 +0100
commitb01af5c0b0414f96e6c3891e704d1c40faa18813 (patch)
tree0ca12daa8bfedb0f814c63a647aac4a0498a74e9 /mm/slob.c
parentc5e97ed154589524a1df4ae2be55c4cfdb0d0573 (diff)
mm/slob: Remove unnecessary page_mapcount_reset() function call
After commit 401fb12c68c2 ("mm/sl*b: Differentiate struct slab fields by sl*b implementations"), we can reorder fields of struct slab depending on slab allocator. For now, page_mapcount_reset() is called because page->_mapcount and slab->units have same offset. But this is not necessary for struct slab. Use unused field for units instead. Signed-off-by: Hyeonggon Yoo <42.hyeyoo@gmail.com> Signed-off-by: Vlastimil Babka <vbabka@suse.cz> Link: https://lore.kernel.org/r/20211212065241.GA886691@odroid
Diffstat (limited to 'mm/slob.c')
-rw-r--r--mm/slob.c1
1 files changed, 0 insertions, 1 deletions
diff --git a/mm/slob.c b/mm/slob.c
index 3c6cadbbc238..60c5842215f1 100644
--- a/mm/slob.c
+++ b/mm/slob.c
@@ -404,7 +404,6 @@ static void slob_free(void *block, int size)
clear_slob_page_free(sp);
spin_unlock_irqrestore(&slob_lock, flags);
__folio_clear_slab(slab_folio(sp));
- page_mapcount_reset(slab_page(sp));
slob_free_pages(b, 0);
return;
}