Derive the index and offset variables inside the function, and complete
the bio directly in preparation for cleaning up the I/O path.
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Reviewed-by: Sergey Senozhatsky <senozhatsky@xxxxxxxxxxxx>
---
drivers/block/zram/zram_drv.c | 16 +++++++---------
1 file changed, 7 insertions(+), 9 deletions(-)
diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c
index 0c6b3ba2970b5f..3d8e2a1db7c7d3 100644
--- a/drivers/block/zram/zram_drv.c
+++ b/drivers/block/zram/zram_drv.c
@@ -1896,15 +1896,12 @@ static ssize_t recompress_store(struct device *dev,
}
#endif
-/*
- * zram_bio_discard - handler on discard request
- * @index: physical block index in PAGE_SIZE units
- * @offset: byte offset within physical block
- */
-static void zram_bio_discard(struct zram *zram, u32 index,
- int offset, struct bio *bio)
+static void zram_bio_discard(struct zram *zram, struct bio *bio)
{
size_t n = bio->bi_iter.bi_size;
+ u32 index = bio->bi_iter.bi_sector >> SECTORS_PER_PAGE_SHIFT;
+ u32 offset = (bio->bi_iter.bi_sector & (SECTORS_PER_PAGE - 1)) <<
+ SECTOR_SHIFT;
/*
* zram manages data in physical block size units. Because logical block
@@ -1932,6 +1929,8 @@ static void zram_bio_discard(struct zram *zram, u32 index,
index++;
n -= PAGE_SIZE;
}
+
+ bio_endio(bio);
}
/*
@@ -1980,8 +1979,7 @@ static void __zram_make_request(struct zram *zram, struct bio *bio)
switch (bio_op(bio)) {
case REQ_OP_DISCARD:
case REQ_OP_WRITE_ZEROES:
- zram_bio_discard(zram, index, offset, bio);
- bio_endio(bio);
+ zram_bio_discard(zram, bio);
return;
default:
break;
--
2.39.2
