md/raid456: convert macro STRIPE_* to RAID5_STRIPE_*
Convert macro STRIPE_SIZE, STRIPE_SECTORS and STRIPE_SHIFT to
RAID5_STRIPE_SIZE(), RAID5_STRIPE_SECTORS() and RAID5_STRIPE_SHIFT().
This patch is prepare for the following adjustable stripe_size.
It will not change any existing functionality.
Signed-off-by: Yufen Yu <yuyufen@huawei.com>
Signed-off-by: Song Liu <songliubraving@fb.com>
diff --git a/drivers/md/raid5.h b/drivers/md/raid5.h
index f90e070..ca21f30 100644
--- a/drivers/md/raid5.h
+++ b/drivers/md/raid5.h
@@ -481,23 +481,6 @@ struct disk_info {
#define HASH_MASK (NR_HASH - 1)
#define MAX_STRIPE_BATCH 8
-/* bio's attached to a stripe+device for I/O are linked together in bi_sector
- * order without overlap. There may be several bio's per stripe+device, and
- * a bio could span several devices.
- * When walking this list for a particular stripe+device, we must never proceed
- * beyond a bio that extends past this device, as the next bio might no longer
- * be valid.
- * This function is used to determine the 'next' bio in the list, given the
- * sector of the current stripe+device
- */
-static inline struct bio *r5_next_bio(struct bio *bio, sector_t sector)
-{
- if (bio_end_sector(bio) < sector + STRIPE_SECTORS)
- return bio->bi_next;
- else
- return NULL;
-}
-
/* NOTE NR_STRIPE_HASH_LOCKS must remain below 64.
* This is because we sometimes take all the spinlocks
* and creating that much locking depth can cause
@@ -690,6 +673,26 @@ struct r5conf {
struct r5pending_data *next_pending_data;
};
+#define RAID5_STRIPE_SIZE(conf) STRIPE_SIZE
+#define RAID5_STRIPE_SHIFT(conf) STRIPE_SHIFT
+#define RAID5_STRIPE_SECTORS(conf) STRIPE_SECTORS
+
+/* bio's attached to a stripe+device for I/O are linked together in bi_sector
+ * order without overlap. There may be several bio's per stripe+device, and
+ * a bio could span several devices.
+ * When walking this list for a particular stripe+device, we must never proceed
+ * beyond a bio that extends past this device, as the next bio might no longer
+ * be valid.
+ * This function is used to determine the 'next' bio in the list, given the
+ * sector of the current stripe+device
+ */
+static inline struct bio *r5_next_bio(struct r5conf *conf, struct bio *bio, sector_t sector)
+{
+ if (bio_end_sector(bio) < sector + RAID5_STRIPE_SECTORS(conf))
+ return bio->bi_next;
+ else
+ return NULL;
+}
/*
* Our supported algorithms