summaryrefslogtreecommitdiffstats
path: root/mm/z3fold.c
diff options
context:
space:
mode:
authorMiaohe Lin <linmiaohe@huawei.com>2021-06-30 18:50:24 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2021-06-30 20:47:28 -0700
commite3c0db4fec46b46a0c22b46bb55392b36ec940fc (patch)
treeb060362dee895c6cd389a7b50d7bceba738dc211 /mm/z3fold.c
parentc6d9eee2a68619b5ba1c25e406a9403f33b56902 (diff)
downloadlinux-stable-e3c0db4fec46b46a0c22b46bb55392b36ec940fc.tar.gz
linux-stable-e3c0db4fec46b46a0c22b46bb55392b36ec940fc.tar.bz2
linux-stable-e3c0db4fec46b46a0c22b46bb55392b36ec940fc.zip
mm/z3fold: define macro NCHUNKS as TOTAL_CHUNKS - ZHDR_CHUNKS
Patch series "Cleanup and fixup for z3fold". This series contains cleanups to remove unused function, redefine macro to improve readability and so on. Also this fixes several bugs in z3fold, such as memory leak in z3fold_destroy_pool(). More details can be found in the respective changelogs. This patch (of 6): To improve code readability, we could define macro NCHUNKS as TOTAL_CHUNKS - ZHDR_CHUNKS. No functional change intended. Link: https://lkml.kernel.org/r/20210619093151.1492174-1-linmiaohe@huawei.com Link: https://lkml.kernel.org/r/20210619093151.1492174-2-linmiaohe@huawei.com Signed-off-by: Miaohe Lin <linmiaohe@huawei.com> Reviewed-by: Vitaly Wool <vitaly.wool@konsulko.com> Cc: Hillf Danton <hdanton@sina.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/z3fold.c')
-rw-r--r--mm/z3fold.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/z3fold.c b/mm/z3fold.c
index 7fe7adaaad01..0d0b81637f84 100644
--- a/mm/z3fold.c
+++ b/mm/z3fold.c
@@ -62,7 +62,7 @@
#define ZHDR_SIZE_ALIGNED round_up(sizeof(struct z3fold_header), CHUNK_SIZE)
#define ZHDR_CHUNKS (ZHDR_SIZE_ALIGNED >> CHUNK_SHIFT)
#define TOTAL_CHUNKS (PAGE_SIZE >> CHUNK_SHIFT)
-#define NCHUNKS ((PAGE_SIZE - ZHDR_SIZE_ALIGNED) >> CHUNK_SHIFT)
+#define NCHUNKS (TOTAL_CHUNKS - ZHDR_CHUNKS)
#define BUDDY_MASK (0x3)
#define BUDDY_SHIFT 2