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From: Christoph Hellwig <hch@lst.de>
To: Jens Axboe <axboe@kernel.dk>
Cc: linux-block@vger.kernel.org, linux-raid@vger.kernel.org,
	linux-scsi@vger.kernel.org, linux-ext4@vger.kernel.org,
	reiserfs-devel@vger.kernel.org
Subject: [PATCH 19/21] partitions/msdos: remove LINUX_SWAP_PARTITION
Date: Thu, 12 Mar 2020 16:19:37 +0100	[thread overview]
Message-ID: <20200312151939.645254-20-hch@lst.de> (raw)
In-Reply-To: <20200312151939.645254-1-hch@lst.de>

Just always use NEW_SOLARIS_X86_PARTITION and explain the situation,
as that is less confusing than two names for a single value.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 block/partitions/msdos.c        | 18 ++++++++++++------
 include/linux/msdos_partition.h |  3 +--
 2 files changed, 13 insertions(+), 8 deletions(-)

diff --git a/block/partitions/msdos.c b/block/partitions/msdos.c
index 88ee5ee7f442..e44e2f0a02cc 100644
--- a/block/partitions/msdos.c
+++ b/block/partitions/msdos.c
@@ -77,13 +77,19 @@ static int aix_magic_present(struct parsed_partitions *state, unsigned char *p)
 		p[2] == AIX_LABEL_MAGIC3 &&
 		p[3] == AIX_LABEL_MAGIC4))
 		return 0;
-	/* Assume the partition table is valid if Linux partitions exists */
+
+	/*
+	 * Assume the partition table is valid if Linux partitions exists.
+	 * Note that old Solaris/x86 partitions use the same indicator as
+	 * Linux swap partitions, so we consider that a Linux partition as
+	 * well.
+	 */
 	for (slot = 1; slot <= 4; slot++, pt++) {
-		if (pt->sys_ind == LINUX_SWAP_PARTITION ||
-			pt->sys_ind == LINUX_RAID_PARTITION ||
-			pt->sys_ind == LINUX_DATA_PARTITION ||
-			pt->sys_ind == LINUX_LVM_PARTITION ||
-			is_extended_partition(pt))
+		if (pt->sys_ind == SOLARIS_X86_PARTITION ||
+		    pt->sys_ind == LINUX_RAID_PARTITION ||
+		    pt->sys_ind == LINUX_DATA_PARTITION ||
+		    pt->sys_ind == LINUX_LVM_PARTITION ||
+		    is_extended_partition(pt))
 			return 0;
 	}
 	d = read_part_sector(state, 7, &sect);
diff --git a/include/linux/msdos_partition.h b/include/linux/msdos_partition.h
index e151af072cd1..2cb82db2a43c 100644
--- a/include/linux/msdos_partition.h
+++ b/include/linux/msdos_partition.h
@@ -27,12 +27,11 @@ enum msdos_sys_ind {
 	LINUX_EXTENDED_PARTITION = 0x85,
 	WIN98_EXTENDED_PARTITION = 0x0f,
 
-	LINUX_SWAP_PARTITION = 0x82,
 	LINUX_DATA_PARTITION = 0x83,
 	LINUX_LVM_PARTITION = 0x8e,
 	LINUX_RAID_PARTITION = 0xfd,	/* autodetect RAID partition */
 
-	SOLARIS_X86_PARTITION =	LINUX_SWAP_PARTITION,
+	SOLARIS_X86_PARTITION =	0x82,	/* also Linux swap partitions */
 	NEW_SOLARIS_X86_PARTITION = 0xbf,
 
 	DM6_AUX1PARTITION = 0x51,	/* no DDO:  use xlated geom */
-- 
2.24.1

  parent reply	other threads:[~2020-03-12 15:19 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-12 15:19 cleanup the partitioning code Christoph Hellwig
2020-03-12 15:19 ` [PATCH 01/21] block: remove the blk_lookup_devt export Christoph Hellwig
2020-03-12 15:19 ` [PATCH 02/21] block: remove __bdevname Christoph Hellwig
2020-03-13 14:19   ` Theodore Y. Ts'o
2020-03-12 15:19 ` [PATCH 03/21] block: move disk_name and related helpers out of partition-generic.c Christoph Hellwig
2020-03-12 15:19 ` [PATCH 04/21] block: move sysfs methods shared by disks and partitions to genhd.c Christoph Hellwig
2020-03-12 15:19 ` [PATCH 05/21] block: remove alloc_part_info and free_part_info Christoph Hellwig
2020-03-12 15:19 ` [PATCH 06/21] scsi: simplify scsi_bios_ptable Christoph Hellwig
2020-03-12 15:19 ` [PATCH 07/21] scsi: move scsicam_bios_param to the end of scsicam.c Christoph Hellwig
2020-03-12 15:19 ` [PATCH 08/21] scsi: simplify scsi_partsize Christoph Hellwig
2020-03-12 15:19 ` [PATCH 09/21] block: unexport read_dev_sector and put_dev_sector Christoph Hellwig
2020-03-12 15:19 ` [PATCH 10/21] block: cleanup how md_autodetect_dev is called Christoph Hellwig
2020-03-12 15:19 ` [PATCH 11/21] block: remove warn_no_part Christoph Hellwig
2020-03-12 15:19 ` [PATCH 12/21] block: declare all partition detection routines in check.h Christoph Hellwig
2020-03-12 15:19 ` [PATCH 13/21] block: remove block/partitions/karma.h Christoph Hellwig
2020-03-12 15:19 ` [PATCH 14/21] block: remove block/partitions/osf.h Christoph Hellwig
2020-03-12 15:19 ` [PATCH 15/21] block: remove block/partitions/sgi.h Christoph Hellwig
2020-03-12 15:19 ` [PATCH 16/21] block: remove block/partitions/sun.h Christoph Hellwig
2020-03-12 15:19 ` [PATCH 17/21] block: move struct partition out of genhd.h Christoph Hellwig
2020-03-12 15:19 ` [PATCH 18/21] block: move the *_PARTITION enum " Christoph Hellwig
2020-03-12 15:19 ` Christoph Hellwig [this message]
2020-03-12 15:19 ` [PATCH 20/21] block: move the various x86 Unix label formats " Christoph Hellwig
2020-03-12 15:19   ` Christoph Hellwig
2020-03-12 15:19 ` [PATCH 21/21] block: merge partition-generic.c and check.c Christoph Hellwig
2020-03-23 16:52 ` cleanup the partitioning code Christoph Hellwig
2020-03-23 16:55   ` Jens Axboe
2020-03-23 16:57     ` Jens Axboe
2020-03-23 17:05       ` Christoph Hellwig
2020-03-23 19:32     ` Jens Axboe
2020-03-24  7:25 cleanup the partitioning code v2 Christoph Hellwig
2020-03-24  7:25 ` [PATCH 19/21] partitions/msdos: remove LINUX_SWAP_PARTITION Christoph Hellwig

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