From: Yue Hu huyue2@yulong.com
commit 7dea3de7d384f4c8156e8bd93112ba6db1eb276c upstream.
No any behavior to variable occupied in z_erofs_attach_page() which is only caller to z_erofs_pagevec_enqueue().
Link: https://lore.kernel.org/r/20210419102623.2015-1-zbestahu@gmail.com Signed-off-by: Yue Hu huyue2@yulong.com Reviewed-by: Gao Xiang xiang@kernel.org Signed-off-by: Gao Xiang xiang@kernel.org [ Gao Xiang: handle 4.19 codebase conflicts manually. ] Signed-off-by: Gao Xiang hsiangkao@linux.alibaba.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/staging/erofs/unzip_pagevec.h | 5 +---- drivers/staging/erofs/unzip_vle.c | 4 +--- 2 files changed, 2 insertions(+), 7 deletions(-)
--- a/drivers/staging/erofs/unzip_pagevec.h +++ b/drivers/staging/erofs/unzip_pagevec.h @@ -117,10 +117,8 @@ static inline void z_erofs_pagevec_ctor_ static inline bool z_erofs_pagevec_ctor_enqueue(struct z_erofs_pagevec_ctor *ctor, struct page *page, - enum z_erofs_page_type type, - bool *occupied) + enum z_erofs_page_type type) { - *occupied = false; if (unlikely(ctor->next == NULL && type)) if (ctor->index + 1 == ctor->nr) return false; @@ -135,7 +133,6 @@ z_erofs_pagevec_ctor_enqueue(struct z_er /* should remind that collector->next never equal to 1, 2 */ if (type == (uintptr_t)ctor->next) { ctor->next = page; - *occupied = true; }
ctor->pages[ctor->index++] = --- a/drivers/staging/erofs/unzip_vle.c +++ b/drivers/staging/erofs/unzip_vle.c @@ -234,7 +234,6 @@ static int z_erofs_vle_work_add_page( enum z_erofs_page_type type) { int ret; - bool occupied;
/* give priority for the compressed data storage */ if (builder->role >= Z_EROFS_VLE_WORK_PRIMARY && @@ -242,8 +241,7 @@ static int z_erofs_vle_work_add_page( try_to_reuse_as_compressed_page(builder, page)) return 0;
- ret = z_erofs_pagevec_ctor_enqueue(&builder->vector, - page, type, &occupied); + ret = z_erofs_pagevec_ctor_enqueue(&builder->vector, page, type); builder->work->vcnt += (unsigned)ret;
return ret ? 0 : -EAGAIN;