block: add a disk_has_partscan helper

commit 140ce28dd3bee8e53acc27f123ae474d69ef66f0 upstream.

Add a helper to check if partition scanning is enabled instead of
open coding the check in a few plac

block: add a disk_has_partscan helper

commit 140ce28dd3bee8e53acc27f123ae474d69ef66f0 upstream.

Add a helper to check if partition scanning is enabled instead of
open coding the check in a few places. This now always checks for
the hidden flag even if all but one of the callers are never reachable
for hidden gendisks.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20240502130033.1958492-2-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

show more ...

block: add a disk_has_partscan helper

commit 140ce28dd3bee8e53acc27f123ae474d69ef66f0 upstream.

Add a helper to check if partition scanning is enabled instead of
open coding the check in a few plac

block: add a disk_has_partscan helper

commit 140ce28dd3bee8e53acc27f123ae474d69ef66f0 upstream.

Add a helper to check if partition scanning is enabled instead of
open coding the check in a few places. This now always checks for
the hidden flag even if all but one of the callers are never reachable
for hidden gendisks.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20240502130033.1958492-2-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

show more ...

block: add a disk_has_partscan helper

commit 140ce28dd3bee8e53acc27f123ae474d69ef66f0 upstream.

Add a helper to check if partition scanning is enabled instead of
open coding the check in a few plac

block: add a disk_has_partscan helper

commit 140ce28dd3bee8e53acc27f123ae474d69ef66f0 upstream.

Add a helper to check if partition scanning is enabled instead of
open coding the check in a few places. This now always checks for
the hidden flag even if all but one of the callers are never reachable
for hidden gendisks.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20240502130033.1958492-2-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

show more ...

block: add a disk_has_partscan helper

commit 140ce28dd3bee8e53acc27f123ae474d69ef66f0 upstream.

Add a helper to check if partition scanning is enabled instead of
open coding the check in a few plac

block: add a disk_has_partscan helper

commit 140ce28dd3bee8e53acc27f123ae474d69ef66f0 upstream.

Add a helper to check if partition scanning is enabled instead of
open coding the check in a few places. This now always checks for
the hidden flag even if all but one of the callers are never reachable
for hidden gendisks.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20240502130033.1958492-2-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

show more ...

block: add a disk_has_partscan helper

commit 140ce28dd3bee8e53acc27f123ae474d69ef66f0 upstream.

Add a helper to check if partition scanning is enabled instead of
open coding the check in a few plac

block: add a disk_has_partscan helper

commit 140ce28dd3bee8e53acc27f123ae474d69ef66f0 upstream.

Add a helper to check if partition scanning is enabled instead of
open coding the check in a few places. This now always checks for
the hidden flag even if all but one of the callers are never reachable
for hidden gendisks.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20240502130033.1958492-2-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

show more ...

block: add a disk_has_partscan helper

commit 140ce28dd3bee8e53acc27f123ae474d69ef66f0 upstream.

Add a helper to check if partition scanning is enabled instead of
open coding the check in a few plac

block: add a disk_has_partscan helper

commit 140ce28dd3bee8e53acc27f123ae474d69ef66f0 upstream.

Add a helper to check if partition scanning is enabled instead of
open coding the check in a few places. This now always checks for
the hidden flag even if all but one of the callers are never reachable
for hidden gendisks.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20240502130033.1958492-2-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

show more ...

block: add a disk_has_partscan helper

commit 140ce28dd3bee8e53acc27f123ae474d69ef66f0 upstream.

Add a helper to check if partition scanning is enabled instead of
open coding the check in a few plac

block: add a disk_has_partscan helper

commit 140ce28dd3bee8e53acc27f123ae474d69ef66f0 upstream.

Add a helper to check if partition scanning is enabled instead of
open coding the check in a few places. This now always checks for
the hidden flag even if all but one of the callers are never reachable
for hidden gendisks.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20240502130033.1958492-2-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

show more ...

block: add a disk_has_partscan helper

commit 140ce28dd3bee8e53acc27f123ae474d69ef66f0 upstream.

Add a helper to check if partition scanning is enabled instead of
open coding the check in a few plac

block: add a disk_has_partscan helper

commit 140ce28dd3bee8e53acc27f123ae474d69ef66f0 upstream.

Add a helper to check if partition scanning is enabled instead of
open coding the check in a few places. This now always checks for
the hidden flag even if all but one of the callers are never reachable
for hidden gendisks.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20240502130033.1958492-2-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

show more ...

block: add a disk_has_partscan helper

commit 140ce28dd3bee8e53acc27f123ae474d69ef66f0 upstream.

Add a helper to check if partition scanning is enabled instead of
open coding the check in a few plac

block: add a disk_has_partscan helper

commit 140ce28dd3bee8e53acc27f123ae474d69ef66f0 upstream.

Add a helper to check if partition scanning is enabled instead of
open coding the check in a few places. This now always checks for
the hidden flag even if all but one of the callers are never reachable
for hidden gendisks.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20240502130033.1958492-2-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

show more ...

block: add a disk_has_partscan helper

commit 140ce28dd3bee8e53acc27f123ae474d69ef66f0 upstream.

Add a helper to check if partition scanning is enabled instead of
open coding the check in a few plac

block: add a disk_has_partscan helper

commit 140ce28dd3bee8e53acc27f123ae474d69ef66f0 upstream.

Add a helper to check if partition scanning is enabled instead of
open coding the check in a few places. This now always checks for
the hidden flag even if all but one of the callers are never reachable
for hidden gendisks.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20240502130033.1958492-2-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

show more ...

block: add a disk_has_partscan helper

commit 140ce28dd3bee8e53acc27f123ae474d69ef66f0 upstream.

Add a helper to check if partition scanning is enabled instead of
open coding the check in a few plac

block: add a disk_has_partscan helper

commit 140ce28dd3bee8e53acc27f123ae474d69ef66f0 upstream.

Add a helper to check if partition scanning is enabled instead of
open coding the check in a few places. This now always checks for
the hidden flag even if all but one of the callers are never reachable
for hidden gendisks.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20240502130033.1958492-2-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

show more ...

block: add a disk_has_partscan helper

commit 140ce28dd3bee8e53acc27f123ae474d69ef66f0 upstream.

Add a helper to check if partition scanning is enabled instead of
open coding the check in a few plac

block: add a disk_has_partscan helper

commit 140ce28dd3bee8e53acc27f123ae474d69ef66f0 upstream.

Add a helper to check if partition scanning is enabled instead of
open coding the check in a few places. This now always checks for
the hidden flag even if all but one of the callers are never reachable
for hidden gendisks.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20240502130033.1958492-2-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

show more ...

block: add a disk_has_partscan helper

commit 140ce28dd3bee8e53acc27f123ae474d69ef66f0 upstream.

Add a helper to check if partition scanning is enabled instead of
open coding the check in a few plac

block: add a disk_has_partscan helper

commit 140ce28dd3bee8e53acc27f123ae474d69ef66f0 upstream.

Add a helper to check if partition scanning is enabled instead of
open coding the check in a few places. This now always checks for
the hidden flag even if all but one of the callers are never reachable
for hidden gendisks.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20240502130033.1958492-2-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

show more ...

block: add a disk_has_partscan helper

commit 140ce28dd3bee8e53acc27f123ae474d69ef66f0 upstream.

Add a helper to check if partition scanning is enabled instead of
open coding the check in a few plac

block: add a disk_has_partscan helper

commit 140ce28dd3bee8e53acc27f123ae474d69ef66f0 upstream.

Add a helper to check if partition scanning is enabled instead of
open coding the check in a few places. This now always checks for
the hidden flag even if all but one of the callers are never reachable
for hidden gendisks.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20240502130033.1958492-2-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

show more ...

block: add a disk_has_partscan helper

commit 140ce28dd3bee8e53acc27f123ae474d69ef66f0 upstream.

Add a helper to check if partition scanning is enabled instead of
open coding the check in a few plac

block: add a disk_has_partscan helper

commit 140ce28dd3bee8e53acc27f123ae474d69ef66f0 upstream.

Add a helper to check if partition scanning is enabled instead of
open coding the check in a few places. This now always checks for
the hidden flag even if all but one of the callers are never reachable
for hidden gendisks.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20240502130033.1958492-2-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

show more ...

block: Move checking GENHD_FL_NO_PART to bdev_add_partition()

[ Upstream commit 7777f47f2ea64efd1016262e7b59fab34adfb869 ]

Commit 1a721de8489f ("block: don't add or resize partition on the disk
wit

block: Move checking GENHD_FL_NO_PART to bdev_add_partition()

[ Upstream commit 7777f47f2ea64efd1016262e7b59fab34adfb869 ]

Commit 1a721de8489f ("block: don't add or resize partition on the disk
with GENHD_FL_NO_PART") prevented all operations about partitions on disks
with GENHD_FL_NO_PART in blkpg_do_ioctl() since they are meaningless.
However, it changed error code in some scenarios. So move checking
GENHD_FL_NO_PART to bdev_add_partition() to eliminate impact.

Fixes: 1a721de8489f ("block: don't add or resize partition on the disk with GENHD_FL_NO_PART")
Reported-by: Allison Karlitskaya <allison.karlitskaya@redhat.com>
Closes: https://lore.kernel.org/all/CAOYeF9VsmqKMcQjo1k6YkGNujwN-nzfxY17N3F-CMikE1tYp+w@mail.gmail.com/
Signed-off-by: Li Lingfeng <lilingfeng3@huawei.com>
Reviewed-by: Yu Kuai <yukuai3@huawei.com>
Link: https://lore.kernel.org/r/20240118130401.792757-1-lilingfeng@huaweicloud.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>

show more ...

block: consolidate __invalidate_device and fsync_bdev

We currently have two interfaces that take a block_devices and the find
a mounted file systems to flush or invaldidate data on it. Both are a
b

block: consolidate __invalidate_device and fsync_bdev

We currently have two interfaces that take a block_devices and the find
a mounted file systems to flush or invaldidate data on it. Both are a
bit problematic because they only work for the "main" block devices
that is used as s_dev for the super_block, and because they don't call
into the file system at all.

Merge the two into a new bdev_mark_dead helper that does both the
syncing and invalidation and which is properly documented. This is
in preparation of merging the functionality into the ->mark_dead
holder operation so that it will work on additional block devices
used by a file systems and give us a single entry point for invalidation
of dead devices or media.

Note that a single standalone fsync_bdev call for an obscure ioctl
remains for now, but that one will also be deal with in a bit.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Message-Id: <20230811100828.1897174-14-hch@lst.de>
Signed-off-by: Christian Brauner <brauner@kernel.org>

show more ...

block: add capacity validation in bdev_add_partition()

In the function bdev_add_partition(),there is no check that the start
and end sectors exceed the size of the disk before calling add_partition.

block: add capacity validation in bdev_add_partition()

In the function bdev_add_partition(),there is no check that the start
and end sectors exceed the size of the disk before calling add_partition.
When we call the block's ioctl interface directly to add a partition,
and the capacity of the disk is set to 0 by driver,the command will
continue to execute.

Signed-off-by: Min Li <min15.li@samsung.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Link: https://lore.kernel.org/r/20230619091214.31615-1-min15.li@samsung.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>

show more ...

block: remove blk_drop_partitions

There is only a single caller left, so fold the loop into that.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jan Kara <jack@suse.cz>
Acked-by: Dave C

block: remove blk_drop_partitions

There is only a single caller left, so fold the loop into that.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jan Kara <jack@suse.cz>
Acked-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Link: https://lore.kernel.org/r/20230601094459.1350643-9-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>

show more ...

block: delete partitions later in del_gendisk

Delay dropping the block_devices for partitions in del_gendisk until
after the call to blk_mark_disk_dead, so that we can implementat
notification of re

block: delete partitions later in del_gendisk

Delay dropping the block_devices for partitions in del_gendisk until
after the call to blk_mark_disk_dead, so that we can implementat
notification of removed devices in blk_mark_disk_dead.

This requires splitting a lower-level drop_partition helper out of
delete_partition and using that from del_gendisk, while having a
common loop for the whole device and partitions that calls
remove_inode_hash, fsync_bdev and __invalidate_device before the
call to blk_mark_disk_dead.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jan Kara <jack@suse.cz>
Acked-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Link: https://lore.kernel.org/r/20230601094459.1350643-8-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>

show more ...

block: unhash the inode earlier in delete_partition

Move the call to remove_inode_hash to the beginning of delete_partition,
as we want to prevent opening a block_device that is about to be removed

block: unhash the inode earlier in delete_partition

Move the call to remove_inode_hash to the beginning of delete_partition,
as we want to prevent opening a block_device that is about to be removed
ASAP.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jan Kara <jack@suse.cz>
Acked-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Link: https://lore.kernel.org/r/20230601094459.1350643-7-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>

show more ...

block: constify the whole_disk device_attribute

The struct is never modified so it can be const.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://lore.kernel.org/r/20230419-cons

block: constify the whole_disk device_attribute

The struct is never modified so it can be const.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://lore.kernel.org/r/20230419-const-partition-v3-4-4e14e48be367@weissschuh.net
Signed-off-by: Jens Axboe <axboe@kernel.dk>

show more ...

block: constify struct part_attr_group

The struct is never modified so it can be const.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://lore.kernel.org/r/20230419-const-partiti

block: constify struct part_attr_group

The struct is never modified so it can be const.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://lore.kernel.org/r/20230419-const-partition-v3-3-4e14e48be367@weissschuh.net
Signed-off-by: Jens Axboe <axboe@kernel.dk>

show more ...

block: constify struct part_type part_type

The struct is never modified so it can be const.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://lore.kernel.org/r/20230419-const-par

block: constify struct part_type part_type

The struct is never modified so it can be const.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://lore.kernel.org/r/20230419-const-partition-v3-2-4e14e48be367@weissschuh.net
Signed-off-by: Jens Axboe <axboe@kernel.dk>

show more ...

block: constify partition prober array

The array is never modified so it can be const.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202304191640.SkNk

block: constify partition prober array

The array is never modified so it can be const.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202304191640.SkNk7kVN-lkp@intel.com/
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://lore.kernel.org/r/20230419-const-partition-v3-1-4e14e48be367@weissschuh.net
Signed-off-by: Jens Axboe <axboe@kernel.dk>

show more ...