Merge tag 'for-5.7/block-2020-03-29' of git://git.kernel.dk/linux-block

Pull block updates from Jens Axboe:

 - Online capacity resizing (Balbir)

 - Number of hardware queue change fixes (Bart)

 - null_blk fault injection addition (Bart)

 - Cleanup of queue allocation, unifying the node/no-node API
   (Christoph)

 - Cleanup of genhd, moving code to where it makes sense (Christoph)

 - Cleanup of the partition handling code (Christoph)

 - disk stat fixes/improvements (Konstantin)

 - BFQ improvements (Paolo)

 - Various fixes and improvements

* tag 'for-5.7/block-2020-03-29' of git://git.kernel.dk/linux-block: (72 commits)
  block: return NULL in blk_alloc_queue() on error
  block: move bio_map_* to blk-map.c
  Revert "blkdev: check for valid request queue before issuing flush"
  block: simplify queue allocation
  bcache: pass the make_request methods to blk_queue_make_request
  null_blk: use blk_mq_init_queue_data
  block: add a blk_mq_init_queue_data helper
  block: move the ->devnode callback to struct block_device_operations
  block: move the part_stat* helpers from genhd.h to a new header
  block: move block layer internals out of include/linux/genhd.h
  block: move guard_bio_eod to bio.c
  block: unexport get_gendisk
  block: unexport disk_map_sector_rcu
  block: unexport disk_get_part
  block: mark part_in_flight and part_in_flight_rw static
  block: mark block_depr static
  block: factor out requeue handling from dispatch code
  block/diskstats: replace time_in_queue with sum of request times
  block/diskstats: accumulate all per-cpu counters in one pass
  block/diskstats: more accurate approximation of io_ticks for slow disks
  ...

1 files changed, 50 insertions, 0 deletions

diff --git a/include/linux/msdos_partition.h b/include/linux/msdos_partition.h
new file mode 100644
index 000000000000..2cb82db2a43c
--- /dev/null
+++ b/include/linux/msdos_partition.h
@@ -0,0 +1,50 @@
+/* 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;
+
+enum msdos_sys_ind {
+	/*
+	 * These three have identical behaviour; use the second one if DOS FDISK
+	 * gets confused about extended/logical partitions starting past
+	 * cylinder 1023.
+	 */
+	DOS_EXTENDED_PARTITION = 5,
+	LINUX_EXTENDED_PARTITION = 0x85,
+	WIN98_EXTENDED_PARTITION = 0x0f,
+
+	LINUX_DATA_PARTITION = 0x83,
+	LINUX_LVM_PARTITION = 0x8e,
+	LINUX_RAID_PARTITION = 0xfd,	/* autodetect RAID partition */
+
+	SOLARIS_X86_PARTITION =	0x82,	/* also Linux swap partitions */
+	NEW_SOLARIS_X86_PARTITION = 0xbf,
+
+	DM6_AUX1PARTITION = 0x51,	/* no DDO:  use xlated geom */
+	DM6_AUX3PARTITION = 0x53,	/* no DDO:  use xlated geom */
+	DM6_PARTITION =	0x54,		/* has DDO: use xlated geom & offset */
+	EZD_PARTITION =	0x55,		/* EZ-DRIVE */
+
+	FREEBSD_PARTITION = 0xa5,	/* FreeBSD Partition ID */
+	OPENBSD_PARTITION = 0xa6,	/* OpenBSD Partition ID */
+	NETBSD_PARTITION = 0xa9,	/* NetBSD Partition ID */
+	BSDI_PARTITION = 0xb7,		/* BSDI Partition ID */
+	MINIX_PARTITION = 0x81,		/* Minix Partition ID */
+	UNIXWARE_PARTITION = 0x63,	/* Same as GNU_HURD and SCO Unix */
+};
+
+#endif /* LINUX_MSDOS_PARTITION_H */