1 files changed, 1 insertions, 33 deletions

diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c
index 57787cbdf1f7..f4466ad1fd4a 100644
--- a/drivers/block/zram/zram_drv.c
+++ b/drivers/block/zram/zram_drv.c
@@ -175,30 +175,6 @@ static inline u32 zram_get_priority(struct zram *zram, u32 index)
 	return prio & ZRAM_COMP_PRIORITY_MASK;
 }
 
-/*
- * Check if request is within bounds and aligned on zram logical blocks.
- */
-static inline bool valid_io_request(struct zram *zram,
-		sector_t start, unsigned int size)
-{
-	u64 end, bound;
-
-	/* unaligned request */
-	if (unlikely(start & (ZRAM_SECTOR_PER_LOGICAL_BLOCK - 1)))
-		return false;
-	if (unlikely(size & (ZRAM_LOGICAL_BLOCK_SIZE - 1)))
-		return false;
-
-	end = start + (size >> SECTOR_SHIFT);
-	bound = zram->disksize >> SECTOR_SHIFT;
-	/* out of range */
-	if (unlikely(start >= bound || end > bound || start > end))
-		return false;
-
-	/* I/O request is valid */
-	return true;
-}
-
 static void update_position(u32 *index, int *offset, struct bio_vec *bvec)
 {
 	*index  += (*offset + bvec->bv_len) / PAGE_SIZE;
@@ -1184,10 +1160,9 @@ static ssize_t io_stat_show(struct device *dev,
 
 	down_read(&zram->init_lock);
 	ret = scnprintf(buf, PAGE_SIZE,
-			"%8llu %8llu %8llu %8llu\n",
+			"%8llu %8llu 0 %8llu\n",
 			(u64)atomic64_read(&zram->stats.failed_reads),
 			(u64)atomic64_read(&zram->stats.failed_writes),
-			(u64)atomic64_read(&zram->stats.invalid_io),
 			(u64)atomic64_read(&zram->stats.notify_free));
 	up_read(&zram->init_lock);
 
@@ -2037,13 +2012,6 @@ static void zram_submit_bio(struct bio *bio)
 {
 	struct zram *zram = bio->bi_bdev->bd_disk->private_data;
 
-	if (!valid_io_request(zram, bio->bi_iter.bi_sector,
-					bio->bi_iter.bi_size)) {
-		atomic64_inc(&zram->stats.invalid_io);
-		bio_io_error(bio);
-		return;
-	}
-
 	__zram_make_request(zram, bio);
 }