Thread (54 messages) 54 messages, 12 authors, 2022-05-23

Re: [PATCH v4 07/13] btrfs: zoned: use generic btrfs zone helpers to support npo2 zoned devices

From: David Sterba <hidden>
Date: 2022-05-18 11:26:37
Also in: dm-devel, linux-btrfs, linux-fsdevel, linux-nvme, lkml

On Wed, May 18, 2022 at 11:40:22AM +0200, Pankaj Raghav wrote:
On 2022-05-17 14:30, David Sterba wrote:
quoted
On Mon, May 16, 2022 at 06:54:10PM +0200, Pankaj Raghav wrote:
quoted
@@ -1108,14 +1101,14 @@ int btrfs_reset_device_zone(struct btrfs_device *device, u64 physical,
 int btrfs_ensure_empty_zones(struct btrfs_device *device, u64 start, u64 size)
 {
 	struct btrfs_zoned_device_info *zinfo = device->zone_info;
-	const u8 shift = zinfo->zone_size_shift;
-	unsigned long begin = start >> shift;
-	unsigned long end = (start + size) >> shift;
+	unsigned long begin = bdev_zone_no(device->bdev, start >> SECTOR_SHIFT);
+	unsigned long end =
+		bdev_zone_no(device->bdev, (start + size) >> SECTOR_SHIFT);
There are unsinged long types here though I'd rather see u64, better for
a separate patch. Fixed width types are cleaner here and in the zoned
code as there's always some conversion to/from sectors.
Ok. I will probably send a separate patch to convert them to fix width
types. Is it ok if I do it as a separate patch instead of including it
in this series?
Yes, it's a cleanup for later, not directly introduced or affecting this
patchset. I've checked zoned.c, in btrfs_ensure_empty_zones it's the
only instance so it's not some widespread problem.
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