[PATCH 3/7] zram: remove unnecessary free

[Minchan Kim <minchan@kernel.org>]

[1] introduced pending zram slot free in zram's write path
in case of missing slot free by memory allocation failure in
zram_slot_free_notify but it is not necessary because
we have already freed the slot right before overwriting.

[1] [a0c516cbfc, zram: don't grab mutex in zram_slot_free_noity]

Signed-off-by: Minchan Kim <minchan@kernel.org>
---
 drivers/block/zram/zram_drv.c | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c
index d87c7e9..ebfddd8 100644
--- a/drivers/block/zram/zram_drv.c
+++ b/drivers/block/zram/zram_drv.c
@@ -441,14 +441,6 @@ static int zram_bvec_write(struct zram *zram, struct bio_vec *bvec, u32 index,
 		goto out;
 	}
 
-	/*
-	 * zram_slot_free_notify could miss free so that let's
-	 * double check.
-	 */
-	if (unlikely(meta->table[index].handle ||
-			zram_test_flag(meta, index, ZRAM_ZERO)))
-		zram_free_page(zram, index);
-
 	ret = lzo1x_1_compress(uncmem, PAGE_SIZE, src, &clen,
 			       meta->compress_workmem);
 
-- 
1.8.4.3