summaryrefslogtreecommitdiff
path: root/include/linux/msdos_partition.h
diff options
context:
space:
mode:
authorChristoph Hellwig <hch@lst.de>2020-03-24 08:25:26 +0100
committerJens Axboe <axboe@kernel.dk>2020-03-24 07:57:08 -0600
commit1442f76d4317b420580e11238d20789708c742a4 (patch)
tree86d763c8dd427a3a7b868906b77a36f888201832 /include/linux/msdos_partition.h
parentcbb5cb3b29f9eb158bd2db39cdc07db6d8087461 (diff)
block: move struct partition out of genhd.h
struct partition is the on-disk format of a MSDOS partition table entry. Move it out of genhd.h into a new msdos_partition.h header and give it a msdos_ prefix to avoid confusion. Also move the magic number from block/partitions/msdos.h to the new header so that it can be used by the SCSI drivers looking at the DOS partition tables. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include/linux/msdos_partition.h')
-rw-r--r--include/linux/msdos_partition.h20
1 files changed, 20 insertions, 0 deletions
diff --git a/include/linux/msdos_partition.h b/include/linux/msdos_partition.h
new file mode 100644
index 000000000000..a8e2c1b4bc66
--- /dev/null
+++ b/include/linux/msdos_partition.h
@@ -0,0 +1,20 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _LINUX_MSDOS_PARTITION_H
+#define _LINUX_MSDOS_PARTITION_H
+
+#define MSDOS_LABEL_MAGIC 0xAA55
+
+struct msdos_partition {
+ u8 boot_ind; /* 0x80 - active */
+ u8 head; /* starting head */
+ u8 sector; /* starting sector */
+ u8 cyl; /* starting cylinder */
+ u8 sys_ind; /* What partition type */
+ u8 end_head; /* end head */
+ u8 end_sector; /* end sector */
+ u8 end_cyl; /* end cylinder */
+ __le32 start_sect; /* starting sector counting from 0 */
+ __le32 nr_sects; /* nr of sectors in partition */
+} __packed;
+
+#endif /* LINUX_MSDOS_PARTITION_H */