Revision - b720530 - block: allow partitions on host aware zone devices - origin: https://github.com/torvalds/linux

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https://github.com/torvalds/linux

27 March 2024, 02:37:15 UTC

Revision b72053072c0bbe9f1cdfe2ffa3c201c185da2201 authored by Christoph Hellwig on 26 January 2020, 13:05:43 UTC, committed by Jens Axboe on 26 January 2020, 16:59:08 UTC

block: allow partitions on host aware zone devices

Host-aware SMR drives can be used with the commands to explicitly manage
zone state, but they can also be used as normal disks.  In the former
case it makes perfect sense to allow partitions on them, in the latter
it does not, just like for host managed devices.  Add a check to
add_partition to allow partitions on host aware devices, but give
up any zone management capabilities in that case, which also catches
the previously missed case of adding a partition vs just scanning it.

Because sd can rescan the attribute at runtime it needs to check if
a disk has partitions, for which a new helper is added to genhd.h.

Fixes: 5eac3eb30c9a ("block: Remove partition support for zoned block devices")
Reported-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Tested-by: Damien Le Moal <damien.lemoal@wdc.com>
Reviewed-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

1 parent ad6bf88

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Tip revision: b72053072c0bbe9f1cdfe2ffa3c201c185da2201 authored by Christoph Hellwig on 26 January 2020, 13:05:43 UTC
block: allow partitions on host aware zone devices

Tip revision: b720530

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include
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kernel
lib
mm
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security
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usr
virt
.clang-format	-rw-r--r--	15.0 KB
.cocciconfig	-rw-r--r--	59 bytes
.get_maintainer.ignore	-rw-r--r--	71 bytes
.gitattributes	-rw-r--r--	62 bytes
.gitignore	-rw-r--r--	1.7 KB
.mailmap	-rw-r--r--	13.9 KB
COPYING	-rw-r--r--	423 bytes
CREDITS	-rw-r--r--	97.3 KB
Kbuild	-rw-r--r--	1.3 KB
Kconfig	-rw-r--r--	595 bytes
MAINTAINERS	-rw-r--r--	526.2 KB
Makefile	-rw-r--r--	59.4 KB
README	-rw-r--r--	727 bytes

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block: allow partitions on host aware zone devices

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