diff mbox series

[v2,5/5] zram: use generic PAGE_SECTORS and PAGE_SECTORS_SHIFT

Message ID 20230526073336.344543-6-mcgrof@kernel.org (mailing list archive)
State Changes Requested, archived
Delegated to: Mike Snitzer
Headers show
Series block: simplify with PAGE_SECTORS_SHIFT | expand

Commit Message

Luis Chamberlain May 26, 2023, 7:33 a.m. UTC 
Instead of re-defining the already existing constants use the provided ones:

So replace:

 o SECTORS_PER_PAGE_SHIFT with PAGE_SECTORS_SHIFT
 o SECTORS_PER_PAGE       with PAGE_SECTORS

This produces no functional changes.

Reviewed-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
---
 drivers/block/zram/zram_drv.c | 12 ++++++------
 drivers/block/zram/zram_drv.h |  2 --
 2 files changed, 6 insertions(+), 8 deletions(-)

Comments

Johannes Thumshirn May 26, 2023, 9:24 a.m. UTC | #1 
On 26.05.23 09:34, Luis Chamberlain wrote:
> +	u32 index = bio->bi_iter.bi_sector >> PAGE_SECTORS_SHIFT;
> +	u32 offset = (bio->bi_iter.bi_sector & (PAGE_SECTORS - 1)) <<
>  			SECTOR_SHIFT;

(PAGE_SECTORS - 1) is SECTOR_MASK, please use this.

Thanks,
	Johannes
--
dm-devel mailing list
dm-devel@redhat.com
https://listman.redhat.com/mailman/listinfo/dm-devel
diff mbox series

Patch

diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c
index f6d90f1ba5cf..5fdeb78ace9a 100644
--- a/drivers/block/zram/zram_drv.c
+++ b/drivers/block/zram/zram_drv.c
@@ -1834,8 +1834,8 @@  static ssize_t recompress_store(struct device *dev,
 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)) <<
+	u32 index = bio->bi_iter.bi_sector >> PAGE_SECTORS_SHIFT;
+	u32 offset = (bio->bi_iter.bi_sector & (PAGE_SECTORS - 1)) <<
 			SECTOR_SHIFT;
 
 	/*
@@ -1876,8 +1876,8 @@  static void zram_bio_read(struct zram *zram, struct bio *bio)
 
 	start_time = bio_start_io_acct(bio);
 	bio_for_each_segment(bv, bio, iter) {
-		u32 index = iter.bi_sector >> SECTORS_PER_PAGE_SHIFT;
-		u32 offset = (iter.bi_sector & (SECTORS_PER_PAGE - 1)) <<
+		u32 index = iter.bi_sector >> PAGE_SECTORS_SHIFT;
+		u32 offset = (iter.bi_sector & (PAGE_SECTORS - 1)) <<
 				SECTOR_SHIFT;
 
 		if (zram_bvec_read(zram, &bv, index, offset, bio) < 0) {
@@ -1903,8 +1903,8 @@  static void zram_bio_write(struct zram *zram, struct bio *bio)
 
 	start_time = bio_start_io_acct(bio);
 	bio_for_each_segment(bv, bio, iter) {
-		u32 index = iter.bi_sector >> SECTORS_PER_PAGE_SHIFT;
-		u32 offset = (iter.bi_sector & (SECTORS_PER_PAGE - 1)) <<
+		u32 index = iter.bi_sector >> PAGE_SECTORS_SHIFT;
+		u32 offset = (iter.bi_sector & (PAGE_SECTORS - 1)) <<
 				SECTOR_SHIFT;
 
 		if (zram_bvec_write(zram, &bv, index, offset, bio) < 0) {
diff --git a/drivers/block/zram/zram_drv.h b/drivers/block/zram/zram_drv.h
index ca7a15bd4845..9f2543af5c76 100644
--- a/drivers/block/zram/zram_drv.h
+++ b/drivers/block/zram/zram_drv.h
@@ -21,8 +21,6 @@ 
 
 #include "zcomp.h"
 
-#define SECTORS_PER_PAGE_SHIFT	(PAGE_SHIFT - SECTOR_SHIFT)
-#define SECTORS_PER_PAGE	(1 << SECTORS_PER_PAGE_SHIFT)
 #define ZRAM_LOGICAL_BLOCK_SHIFT 12
 #define ZRAM_LOGICAL_BLOCK_SIZE	(1 << ZRAM_LOGICAL_BLOCK_SHIFT)
 #define ZRAM_SECTOR_PER_LOGICAL_BLOCK	\