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authorXiu Jianfeng <xiujianfeng@huawei.com>2023-08-08 09:20:56 +0300
committerAndrew Morton <akpm@linux-foundation.org>2023-08-21 23:37:47 +0300
commit97157d8908bc10dec22cc4479f4c5cc7db58a12c (patch)
treeed631a6b7ce52d364d6ee7987b6a29719a1607cc /mm/zswap.c
parent3f32c49ed6f15c8412a8abc93a92c4b37e6c4592 (diff)
downloadlinux-97157d8908bc10dec22cc4479f4c5cc7db58a12c.tar.xz
mm: zswap: update comment for struct zswap_entry
Since commit 0bb488498c98 ("mm: zswap: remove zswap_header"), the 'offset' has been replaced by swpentry, update the comment for it, and also add comment for 'objcg'. Link: https://lkml.kernel.org/r/20230808062056.292950-1-xiujianfeng@huaweicloud.com Signed-off-by: Xiu Jianfeng <xiujianfeng@huawei.com> Reviewed-by: Yosry Ahmed <yosryahmed@google.com> Acked-by: Nhat Pham <nphamcs@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/zswap.c')
-rw-r--r--mm/zswap.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/mm/zswap.c b/mm/zswap.c
index 8b6b1bc8a5f2..7300b98d4a03 100644
--- a/mm/zswap.c
+++ b/mm/zswap.c
@@ -182,7 +182,7 @@ struct zswap_pool {
* page within zswap.
*
* rbnode - links the entry into red-black tree for the appropriate swap type
- * offset - the swap offset for the entry. Index into the red-black tree.
+ * swpentry - associated swap entry, the offset indexes into the red-black tree
* refcount - the number of outstanding reference to the entry. This is needed
* to protect against premature freeing of the entry by code
* concurrent calls to load, invalidate, and writeback. The lock
@@ -195,6 +195,7 @@ struct zswap_pool {
* pool - the zswap_pool the entry's data is in
* handle - zpool allocation handle that stores the compressed page data
* value - value of the same-value filled pages which have same content
+ * objcg - the obj_cgroup that the compressed memory is charged to
* lru - handle to the pool's lru used to evict pages.
*/
struct zswap_entry {