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From: Ahmad Fatoum <a.fatoum@barebox.org>
To: barebox@lists.infradead.org
Cc: Ahmad Fatoum <a.fatoum@barebox.org>
Subject: [PATCH 25/26] commands: parted: prepare use of non-512-byte sectors
Date: Fri, 26 Jun 2026 10:42:36 +0200	[thread overview]
Message-ID: <20260626084608.1388806-26-a.fatoum@barebox.org> (raw)
In-Reply-To: <20260626084608.1388806-1-a.fatoum@barebox.org>

Switching parted to create non-512-byte sectors needs a bit more effort
than just switching out all hardcoded SECTOR_SIZE/SHIFT.

Nevertheless, pick these low hanging fruit and defer the rest to some
unknown point in the future.

Assisted-by: Codex:gpt-5.5
Signed-off-by: Ahmad Fatoum <a.fatoum@barebox.org>
---
 commands/createnv.c     | 11 ++++++-----
 commands/parted.c       | 14 +++++++-------
 common/partitions/efi.c |  6 +++---
 3 files changed, 16 insertions(+), 15 deletions(-)

diff --git a/commands/createnv.c b/commands/createnv.c
index 0c74637a114c..6083ab7c2c8f 100644
--- a/commands/createnv.c
+++ b/commands/createnv.c
@@ -69,15 +69,16 @@ static int do_createnv(int argc, char *argv[])
 		goto err;
 	}
 
-	buf = xzalloc(2 * SECTOR_SIZE);
+	buf = xzalloc(2 * BLOCKSIZE(blk));
 
-	ret = cdev_read(cdev, buf, 2 * SECTOR_SIZE, 0, 0);
+	ret = cdev_read(cdev, buf, 2 * BLOCKSIZE(blk), 0, 0);
 	if (ret < 0) {
 		printf("Cannot read from %s: %pe\n", cdev->name, ERR_PTR(ret));
 		goto err;
 	}
 
-	filetype = file_detect_partition_table(buf, 2 * SECTOR_SIZE, SECTOR_SIZE);
+	filetype = file_detect_partition_table(buf, 2 * BLOCKSIZE(blk),
+					       BLOCKSIZE(blk));
 
 	switch (filetype) {
 	case filetype_gpt:
@@ -108,7 +109,7 @@ static int do_createnv(int argc, char *argv[])
 		}
 	}
 
-	size >>= SECTOR_SHIFT;
+	size = blockdevice_round_nblocks(blk, size);
 
 	ret = partition_find_free_space(pdesc, size, &start);
 	if (ret) {
@@ -123,7 +124,7 @@ static int do_createnv(int argc, char *argv[])
 	}
 
 	printf("Will create a barebox environment partition of size %llu bytes on %s\n",
-	       size << SECTOR_SHIFT, cdev->name);
+	       size * BLOCKSIZE(blk), cdev->name);
 
 	if (!force) {
 		char c;
diff --git a/commands/parted.c b/commands/parted.c
index dd79def62a3e..3f531faaef3f 100644
--- a/commands/parted.c
+++ b/commands/parted.c
@@ -109,15 +109,15 @@ static int do_print(struct block_device *blk, int argc, char *argv[])
 	}
 
 	printf("Disk /dev/%s: %s\n", blk->cdev.name,
-	       size_human_readable(blk->num_blocks << SECTOR_SHIFT));
+	       size_human_readable(blockdevice_size(blk)));
 	printf("Partition Table: %s\n", pdesc->parser->name);
 
 	printf("Number      Start           End          Size     Name\n");
 
 	list_for_each_entry(part, &pdesc->partitions, list) {
-		uint64_t start = part->first_sec << SECTOR_SHIFT;
-		uint64_t size = part->size << SECTOR_SHIFT;
-		uint64_t end = start + size - SECTOR_SIZE;
+		uint64_t start = part->first_sec << blk->blockbits;
+		uint64_t size = part->size << blk->blockbits;
+		uint64_t end = start + size - BLOCKSIZE(blk);
 
 		printf(" %3d   %10llu%-3s %10llu%-3s %10llu%-3s  %-36s\n",
 			part->num,
@@ -162,7 +162,7 @@ static int do_mkpart(struct block_device *blk, int argc, char *argv[])
 	start = ALIGN(start, SZ_1M);
 
 	/* convert to LBA */
-	start >>= SECTOR_SHIFT;
+	start = blockdevice_round_nblocks(blk, start);
 
 	if (!strcmp(argv[4], "max")) {
 		/* gpt requires 34 blocks at the end */
@@ -182,7 +182,7 @@ static int do_mkpart(struct block_device *blk, int argc, char *argv[])
 		end *= mult;
 
 		/* convert to LBA */
-		end >>= SECTOR_SHIFT;
+		end >>= blk->blockbits;
 
 		/*
 		 * When unit is >= KB then subtract one sector for user
@@ -235,7 +235,7 @@ static int do_mkpart_size(struct block_device *blk, int argc, char *argv[])
 	size = ALIGN(size, PARTITION_ALIGN_SIZE);
 
 	/* convert to LBA */
-	size >>= SECTOR_SHIFT;
+	size = blockdevice_round_nblocks(blk, size);
 
 	pdesc = pdesc_get(blk);
 	if (!pdesc)
diff --git a/common/partitions/efi.c b/common/partitions/efi.c
index 33d9a1df9e83..18a8c4d56632 100644
--- a/common/partitions/efi.c
+++ b/common/partitions/efi.c
@@ -689,7 +689,7 @@ static __maybe_unused struct partition_desc *efi_partition_create_table(struct b
 
 	partition_desc_init(&epd->pd, blk);
 
-	epd->gpt = xzalloc(SECTOR_SIZE);
+	epd->gpt = xzalloc(BLOCKSIZE(blk));
 	gpt = epd->gpt;
 
 	gpt->signature = cpu_to_le64(GPT_HEADER_SIGNATURE);
@@ -851,12 +851,12 @@ static int __efi_partition_write(struct efi_partition_desc *epd, bool primary)
 	uint64_t my_lba, partition_entry_lba;
 	int ret;
 
-	gpt = xmemdup(epd->gpt, SECTOR_SIZE);
+	gpt = xmemdup(epd->gpt, BLOCKSIZE(blk));
 
 	count = le32_to_cpu(gpt->num_partition_entries) *
 		le32_to_cpu(gpt->sizeof_partition_entry);
 
-	size = count / GPT_BLOCK_SIZE;
+	size = blockdevice_round_nblocks(blk, count);
 
 	if (primary) {
 		my_lba = 1;
-- 
2.47.3




  parent reply	other threads:[~2026-06-26  8:51 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-06-26  8:42 [PATCH 00/26] block: add support for non-512 byte sectors Ahmad Fatoum
2026-06-26  8:42 ` [PATCH 01/26] nvme: use barebox-appropriate 64-bit type for timeouts Ahmad Fatoum
2026-06-26  8:42 ` [PATCH 02/26] nvme: fix buffer advancement when chunking due to max_hw_sectors Ahmad Fatoum
2026-06-26  8:42 ` [PATCH 03/26] nvme: allow flush opcode Ahmad Fatoum
2026-06-26  8:42 ` [PATCH 04/26] nvme: honor namespace block size for I/O Ahmad Fatoum
2026-06-26  8:42 ` [PATCH 05/26] bootscan: fix detection of GPT Ahmad Fatoum
2026-06-26  8:42 ` [PATCH 06/26] block: clarify that writebuffer_io_len returns sector counts Ahmad Fatoum
2026-06-26  8:42 ` [PATCH 07/26] block: fix wrong type for discard_start/size byte ranges Ahmad Fatoum
2026-06-26  8:42 ` [PATCH 08/26] block: fix discard zeroing too little memory Ahmad Fatoum
2026-06-26  8:42 ` [PATCH 09/26] block: use logical block size for reparse checks Ahmad Fatoum
2026-06-26  8:42 ` [PATCH 10/26] block: require lower bound of sector size to be 512 bytes Ahmad Fatoum
2026-06-26  8:42 ` [PATCH 11/26] filetype: don't hardcode sector size in file_detect_partition_table Ahmad Fatoum
2026-06-26  8:42 ` [PATCH 12/26] block: define helpers for non-512-byte sector support Ahmad Fatoum
2026-06-26  8:42 ` [PATCH 13/26] bootscan: use block size for partition table probe Ahmad Fatoum
2026-06-26  8:42 ` [PATCH 14/26] ramdisk: validate exported sector size Ahmad Fatoum
2026-06-26  8:42 ` [PATCH 15/26] efi: block: fix sector size mismatch in block device registration and ops Ahmad Fatoum
2026-06-26  8:42 ` [PATCH 16/26] efi: loader: disk: report block device size in Block I/O Ahmad Fatoum
2026-06-26  8:42 ` [PATCH 17/26] efi: loader: file: report cdev block size in file info Ahmad Fatoum
2026-06-26  8:42 ` [PATCH 18/26] partitions: use byte offset for first partition policy Ahmad Fatoum
2026-06-26  8:42 ` [PATCH 19/26] partitions: dos: allocate correctly sized buffer for dos_partition_desc Ahmad Fatoum
2026-06-26  8:42 ` [PATCH 20/26] partition: support non-512 byte sectors Ahmad Fatoum
2026-06-26  8:42 ` [PATCH 21/26] fs: fat: fix garbage read when writing with bigger block size Ahmad Fatoum
2026-06-26  8:42 ` [PATCH 22/26] fs: fat: support larger block device sectors Ahmad Fatoum
2026-06-26  8:42 ` [PATCH 23/26] usb-storage: preserve READ CAPACITY sector size Ahmad Fatoum
2026-06-26  8:42 ` [PATCH 24/26] fuzz: add 4K-sector partition ramdisk target Ahmad Fatoum
2026-06-26  8:42 ` Ahmad Fatoum [this message]
2026-06-26  8:42 ` [PATCH 26/26] commands: parted: exit if block size if not 512 Ahmad Fatoum

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