linux-2.6-block.git
3 years agonvme: update MAINTAINERS for the new auth code
Christoph Hellwig [Mon, 25 Jul 2022 05:40:26 +0000 (07:40 +0200)]
nvme: update MAINTAINERS for the new auth code

Add the common subdirectory and match all nvme* headers in
include/linux/.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
3 years agonvmet-tcp: fix lockdep complaint on nvmet_tcp_wq flush during queue teardown
Sagi Grimberg [Sun, 24 Jul 2022 08:58:43 +0000 (11:58 +0300)]
nvmet-tcp: fix lockdep complaint on nvmet_tcp_wq flush during queue teardown

We probably need nvmet_tcp_wq to have MEM_RECLAIM as we are
sending/receiving for the socket from works on this workqueue.
Also this eliminates lockdep complaints:
--
[ 6174.010200] workqueue: WQ_MEM_RECLAIM
nvmet-wq:nvmet_tcp_release_queue_work [nvmet_tcp] is flushing
!WQ_MEM_RECLAIM nvmet_tcp_wq:nvmet_tcp_io_work [nvmet_tcp]
[ 6174.010216] WARNING: CPU: 20 PID: 14456 at kernel/workqueue.c:2628
check_flush_dependency+0x110/0x14c

Reported-by: Yi Zhang <yi.zhang@redhat.com>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
3 years agonvme: enable generic interface (/dev/ngXnY) for unknown command sets
Joel Granados [Tue, 12 Jul 2022 18:33:04 +0000 (20:33 +0200)]
nvme: enable generic interface (/dev/ngXnY) for unknown command sets

Extend nvme_alloc_ns() and nvme_validate_ns() for unknown command-set as
well. Both are made to use a new helper (nvme_update_ns_info_cs_indep)
which is similar to nvme_update_ns_info but performs fewer operations
to get the generic interface up.

Suggested-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Joel Granados <j.granados@samsung.com>
Signed-off-by: Kanchan Joshi <joshi.k@samsung.com>
[hch: rebased on other refactoring patches]
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Javier González <javier.gonz@samsung.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
3 years agonvme: factor out a nvme_ns_is_readonly helper
Christoph Hellwig [Wed, 13 Jul 2022 05:40:25 +0000 (07:40 +0200)]
nvme: factor out a nvme_ns_is_readonly helper

Add a little helper to check if a namespace should be marked read-only
that uses a new is_readonly flag in the nvme_ns_info structure.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Javier González <javier.gonz@samsung.com>
Reviewed-by: Joel Granados <j.granados@samsung.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Kanchan Joshi <joshi.k@samsung.com>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
3 years agonvme: refactor namespace probing
Christoph Hellwig [Fri, 22 Jul 2022 16:24:18 +0000 (18:24 +0200)]
nvme: refactor namespace probing

Change nvme_ns_scan to gather all information needed for generic
namespace setup into a nvme_ns_info structure.  This structure is filled
from the Command Set Idependent Identify Namespace data structure if
it is available or else the legacy Identify namespace structure.

With that everything related to the NVM command set (and the ZNS command
set derived from it) can be encapsulated in the nvme_update_ns_info_block
function while keeping the rest of the namespace probing generic.

The downside is that we now always issue two Identify Namespace calls for
each probed namespace instead of usually just a single one previously.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Javier González <javier.gonz@samsung.com>
Reviewed-by: Joel Granados <j.granados@samsung.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
3 years agonvme: generalize the nvme_multi_css check in nvme_scan_ns
Christoph Hellwig [Tue, 12 Jul 2022 16:15:01 +0000 (18:15 +0200)]
nvme: generalize the nvme_multi_css check in nvme_scan_ns

Check for multiple command set support early on an error out if is
not supported when a !NVM command set namespace is found.  This
prepares for adding command set independent passthrough support.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Javier González <javier.gonz@samsung.com>
Reviewed-by: Joel Granados <j.granados@samsung.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Kanchan Joshi <joshi.k@samsung.com>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
3 years agonvme: rename nvme_validate_or_alloc_ns to nvme_scan_ns
Christoph Hellwig [Tue, 12 Jul 2022 16:07:53 +0000 (18:07 +0200)]
nvme: rename nvme_validate_or_alloc_ns to nvme_scan_ns

This shorter name much better fits what this function does in
the scanning process.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Javier González <javier.gonz@samsung.com>
Reviewed-by: Joel Granados <j.granados@samsung.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Kanchan Joshi <joshi.k@samsung.com>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
3 years agonvme: catch -ENODEV from nvme_revalidate_zones again
Christoph Hellwig [Thu, 21 Jul 2022 05:56:35 +0000 (07:56 +0200)]
nvme: catch -ENODEV from nvme_revalidate_zones again

nvme_revalidate_zones can also return -ENODEV if e.g. zone sizes aren't
constant or not a power of two.  In that case we should jump to marking
the gendisk hidden and only support pass through.

Fixes: 602e57c9799c ("nvme: also mark passthrough-only namespaces ready in nvme_update_ns_info")
Reported-by: Joel Granados <j.granados@samsung.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Joel Granados <j.granados@samsung.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
3 years agonvmet-auth: select the intended CRYPTO_DH_RFC7919_GROUPS
Lukas Bulwahn [Wed, 20 Jul 2022 11:37:17 +0000 (13:37 +0200)]
nvmet-auth: select the intended CRYPTO_DH_RFC7919_GROUPS

Commit 71ebe3842ebe ("nvmet-auth: Diffie-Hellman key exchange support")
intends to select 'Support for RFC 7919 FFDHE group parameters' for using
FFDHE groups for NVMe In-Band Authentication.

It however selects CRYPTO_DH_GROUPS_RFC7919, instead of the intended
CRYPTO_DH_RFC7919_GROUPS; notice the swapping of words here.

Correct the select to the intended config option.

Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
3 years agonvmet-auth: fix return value check in auth receive
Chaitanya Kulkarni [Mon, 18 Jul 2022 23:12:33 +0000 (16:12 -0700)]
nvmet-auth: fix return value check in auth receive

nvmet_auth_challenge() return type is int and currently it uses status
variable that is of type u16 in nvmet_execute_auth_receive().

Catch the return value of nvmet_auth_challenge() into int and set the
NVME_SC_INTERNAL as status variable before we jump to error.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
3 years agonvmet-auth: fix return value check in auth send
Chaitanya Kulkarni [Mon, 18 Jul 2022 23:12:32 +0000 (16:12 -0700)]
nvmet-auth: fix return value check in auth send

nvmet_setup_auth() return type is int and currently it uses status
variable that is of type u16 in nvmet_execute_auth_send().

Catch the return value of nvmet_setup_auth() into int and set the
NVME_SC_INTERNAL as status variable before we jump to error.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
3 years agonvmet-auth: fix a couple of spelling mistakes
Colin Ian King [Fri, 15 Jul 2022 13:24:13 +0000 (14:24 +0100)]
nvmet-auth: fix a couple of spelling mistakes

There are a couple of spelling mistakes in pr_warn and pr_debug messages.
Fix them.

Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
3 years agonvmet: fix a format specifier in nvmet_auth_ctrl_exponential
Christoph Hellwig [Mon, 18 Jul 2022 05:02:29 +0000 (07:02 +0200)]
nvmet: fix a format specifier in nvmet_auth_ctrl_exponential

dh_keysize is a size_t, use the proper format specifier for printing it.

Reported-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Hannes Reinecke <hare@sues.de>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
3 years agonvmet: don't check for NULL pointer before kfree in nvmet_host_release
Christoph Hellwig [Mon, 18 Jul 2022 05:00:12 +0000 (07:00 +0200)]
nvmet: don't check for NULL pointer before kfree in nvmet_host_release

And add an empty line after the variable declaration.

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
3 years agonvme-apple: stop casting function pointer signatures
Christoph Hellwig [Fri, 15 Jul 2022 09:54:36 +0000 (11:54 +0200)]
nvme-apple: stop casting function pointer signatures

Casting function pointers breaks control flow enforcement and is
generally a horrible coding style.

Add two wrappers to get rid of these casts.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Sven Peter <sven@svenpeter.dev>
3 years agonvme-tcp: split nvme_tcp_alloc_tagset
Christoph Hellwig [Thu, 21 Jul 2022 06:23:19 +0000 (08:23 +0200)]
nvme-tcp: split nvme_tcp_alloc_tagset

Split nvme_tcp_alloc_tagset into one helper for the admin tag_set and
one for the I/O tag set.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
3 years agonvme-rdma: split nvme_rdma_alloc_tagset
Christoph Hellwig [Thu, 21 Jul 2022 06:19:02 +0000 (08:19 +0200)]
nvme-rdma: split nvme_rdma_alloc_tagset

Split nvme_rdma_alloc_tagset into one helper for the admin tag_set and
one for the I/O tag set.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
3 years agonvme-pci: split nvme_dev_add
Christoph Hellwig [Thu, 21 Jul 2022 06:13:23 +0000 (08:13 +0200)]
nvme-pci: split nvme_dev_add

Split nvme_dev_add into a helper to actually allocate the tag set, and
one that just update the number of queues.  Add a local variable for
the tag_set to clean up the code a bit.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
3 years agonvme-pci: split nvme_alloc_admin_tags
Christoph Hellwig [Thu, 21 Jul 2022 06:07:14 +0000 (08:07 +0200)]
nvme-pci: split nvme_alloc_admin_tags

Split nvme_alloc_admin_tags into a helper to actually allocate the
tag set, and one that just restarts the admin queue.  Add a local
variable for the tag_set to clean up the code a bit.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
3 years agonvme-pci: print the command name of aborted commands
Christoph Hellwig [Mon, 18 Jul 2022 05:13:24 +0000 (07:13 +0200)]
nvme-pci: print the command name of aborted commands

To allow for slightly better debugging, print the command name when
aborting an command.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
3 years agonvme-pci: remove useless assignment in nvme_pci_setup_prps
Liu Song [Sat, 16 Jul 2022 11:49:41 +0000 (19:49 +0800)]
nvme-pci: remove useless assignment in nvme_pci_setup_prps

If prp_list is NULL, nvme_unmap_sg will be performed, and the assignment
to first_dma is meaningless, so remove it.

Signed-off-by: Liu Song <liusong@linux.alibaba.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
3 years agonvme-auth: uninitialized variable in nvme_auth_transform_key()
Dan Carpenter [Mon, 18 Jul 2022 11:10:45 +0000 (14:10 +0300)]
nvme-auth: uninitialized variable in nvme_auth_transform_key()

A couple of the early error gotos call kfree_sensitive(transformed_key);
before "transformed_key" has been initialized.

Fixes: a476416bb57b ("nvme: implement In-Band authentication")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
3 years agonvme-auth: fix off by one checks
Dan Carpenter [Mon, 18 Jul 2022 11:09:32 +0000 (14:09 +0300)]
nvme-auth: fix off by one checks

The > ARRAY_SIZE() checks need to be >= ARRAY_SIZE() to prevent reading
one element beyond the end of the arrays.

Fixes: a476416bb57b ("nvme: implement In-Band authentication")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
3 years agonvme-auth: fixup kernel test robot warnings
Hannes Reinecke [Fri, 15 Jul 2022 11:40:44 +0000 (13:40 +0200)]
nvme-auth: fixup kernel test robot warnings

The linux kernel test robot complained that some checks in
nvme_auth_hmac_{len,name,id} and nvme_auth_dhgroup_{name,kpp,id} always
evaluate to 'true'. So simplify the conditions to get rid of those
warnings.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
3 years agonvme: define compat_ioctl again to unbreak 32-bit userspace.
Nick Bowler [Thu, 21 Jul 2022 03:57:35 +0000 (23:57 -0400)]
nvme: define compat_ioctl again to unbreak 32-bit userspace.

Commit 89b3d6e60550 ("nvme: simplify the compat ioctl handling") removed
the initialization of compat_ioctl from the nvme block_device_operations
structures.

Presumably the expectation was that 32-bit ioctls would be directed
through the regular handler but this is not the case: failing to assign
.compat_ioctl actually means that the compat case is disabled entirely,
and any attempt to submit nvme ioctls from 32-bit userspace fails
outright with -ENOTTY.

For example:

  % smartctl -x /dev/nvme0n1
  [...]
  Read NVMe Identify Controller failed: NVME_IOCTL_ADMIN_CMD: Inappropriate ioctl for device

The blkdev_compat_ptr_ioctl helper can be used to direct compat calls
through the main ioctl handler and makes things work again.

Fixes: 89b3d6e60550 ("nvme: simplify the compat ioctl handling")
Signed-off-by: Nick Bowler <nbowler@draconx.ca>
Reviewed-by: Guixin Liu <kanie@linux.alibaba.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
3 years agonvme: don't always build constants.o
Christoph Hellwig [Mon, 18 Jul 2022 05:07:26 +0000 (07:07 +0200)]
nvme: don't always build constants.o

The entire content of constants.c if guarded by an ifdef, so switch to
just building the file conditionally instead.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
3 years agonvme: use command_id instead of req->tag in trace_nvme_complete_rq()
Bean Huo [Fri, 15 Jul 2022 21:27:21 +0000 (23:27 +0200)]
nvme: use command_id instead of req->tag in trace_nvme_complete_rq()

Use command_id instead of req->tag in trace_nvme_complete_rq(),
because of commit e7006de6c238 ("nvme: code command_id with a genctr
for use authentication after release"), cmd->common.command_id is set to
((genctl & 0xf)< 12 | req->tag), no longer req->tag, which makes cid in
trace_nvme_complete_rq and trace_nvme_setup_cmd are not the same.

Fixes: e7006de6c238 ("nvme: code command_id with a genctr for use authentication after release")
Signed-off-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
3 years agoremove the sx8 block driver
Christoph Hellwig [Thu, 21 Jul 2022 06:41:02 +0000 (08:41 +0200)]
remove the sx8 block driver

This driver is for fairly obscure hardware, and has only seen random
drive-by changes after the maintainer stopped working on it in 2005
(about a year and a half after it was introduced).  It has some
"interesting" block layer interactions, so let's just drop it unless
anyone complains.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20220721064102.1715460-1-hch@lst.de
[axboe: fix date typo, it was in 2005, not 2015]
Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agomd: fix build failure for !MODULE
Stephen Rothwell [Thu, 21 Jul 2022 03:11:32 +0000 (13:11 +1000)]
md: fix build failure for !MODULE

After merging the block tree, today's linux-next build (x86_64
allmodconfig) failed like this:

drivers/md/md.c:717:22: error: 'mddev_find' defined but not used [-Werror=unused-function]
  717 | static struct mddev *mddev_find(dev_t unit)
      |                      ^~~~~~~~~~
cc1: all warnings being treated as errors

Caused by commit

  4500d5c17910 ("md: simplify md_open")

Make mddev_find() available only for non-modular builds.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20220721131132.070be166@canb.auug.org.au
Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoMerge branch 'md-next' of https://git.kernel.org/pub/scm/linux/kernel/git/song/md...
Jens Axboe [Wed, 20 Jul 2022 13:06:16 +0000 (07:06 -0600)]
Merge branch 'md-next' of https://git./linux/kernel/git/song/md into for-5.20/drivers-post

Pull MD fixes from Song:

"1. Fix md disk_name lifetime problems, by Christoph Hellwig;
 2. Convert prepare_to_wait() to wait_woken() api, by Logan Gunthorpe;
 3. Fix sectors_to_do bitmap issue, by Logan Gunthorpe."

* 'md-next' of https://git.kernel.org/pub/scm/linux/kernel/git/song/md:
  raid5: fix duplicate checks for rdev->saved_raid_disk
  md: simplify md_open
  md: only delete entries from all_mddevs when the disk is freed
  md: stop using for_each_mddev in md_exit
  md: stop using for_each_mddev in md_notify_reboot
  md: stop using for_each_mddev in md_do_sync
  md: factor out the rdev overlaps check from rdev_size_store
  md: rename md_free to md_kobj_release
  md: implement ->free_disk
  md: fix error handling in md_alloc
  md: fix mddev->kobj lifetime
  md/raid5: Convert prepare_to_wait() to wait_woken() api
  md/raid5: Fix sectors_to_do bitmap overflow in raid5_make_request()

3 years agoraid5: fix duplicate checks for rdev->saved_raid_disk
Jackie Liu [Thu, 7 Jul 2022 09:08:34 +0000 (17:08 +0800)]
raid5: fix duplicate checks for rdev->saved_raid_disk

'first' will always be greater than or equal to 0, it is unnecessary to
repeat the 0 check, clean it up.

Signed-off-by: Jackie Liu <liuyun01@kylinos.cn>
Signed-off-by: Song Liu <song@kernel.org>
3 years agomd: simplify md_open
Christoph Hellwig [Tue, 19 Jul 2022 09:18:24 +0000 (11:18 +0200)]
md: simplify md_open

Now that devices are on the all_mddevs list until the gendisk is freed,
there can't be any duplicates.  Remove the global list lookup and just
grab a reference.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Song Liu <song@kernel.org>
3 years agomd: only delete entries from all_mddevs when the disk is freed
Christoph Hellwig [Tue, 19 Jul 2022 09:18:23 +0000 (11:18 +0200)]
md: only delete entries from all_mddevs when the disk is freed

This ensures device names don't get prematurely reused.  Instead add a
deleted flag to skip already deleted devices in mddev_get and other
places that only want to see live mddevs.

Reported-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Song Liu <song@kernel.org>
3 years agomd: stop using for_each_mddev in md_exit
Christoph Hellwig [Tue, 19 Jul 2022 09:18:22 +0000 (11:18 +0200)]
md: stop using for_each_mddev in md_exit

Just do a simple list_for_each_entry_safe on all_mddevs, and only grab a
reference when we drop the lock and delete the now unused for_each_mddev
macro.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Logan Gunthorpe <logang@deltatee.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Song Liu <song@kernel.org>
3 years agomd: stop using for_each_mddev in md_notify_reboot
Christoph Hellwig [Tue, 19 Jul 2022 09:18:21 +0000 (11:18 +0200)]
md: stop using for_each_mddev in md_notify_reboot

Just do a simple list_for_each_entry_safe on all_mddevs, and only grab a
reference when we drop the lock.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Logan Gunthorpe <logang@deltatee.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Song Liu <song@kernel.org>
3 years agomd: stop using for_each_mddev in md_do_sync
Christoph Hellwig [Tue, 19 Jul 2022 09:18:20 +0000 (11:18 +0200)]
md: stop using for_each_mddev in md_do_sync

Just do a plain list_for_each that only grabs a mddev reference in
the case where the thread sleeps and restarts the list iteration.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Logan Gunthorpe <logang@deltatee.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Song Liu <song@kernel.org>
3 years agomd: factor out the rdev overlaps check from rdev_size_store
Christoph Hellwig [Tue, 19 Jul 2022 09:18:19 +0000 (11:18 +0200)]
md: factor out the rdev overlaps check from rdev_size_store

This splits the code into nicely readable chunks and also avoids
the refcount inc/dec manipulations.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Logan Gunthorpe <logang@deltatee.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Song Liu <song@kernel.org>
3 years agomd: rename md_free to md_kobj_release
Christoph Hellwig [Tue, 19 Jul 2022 09:18:18 +0000 (11:18 +0200)]
md: rename md_free to md_kobj_release

The md_free name is rather misleading, so pick a better one.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Logan Gunthorpe <logang@deltatee.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Song Liu <song@kernel.org>
3 years agomd: implement ->free_disk
Christoph Hellwig [Tue, 19 Jul 2022 09:18:17 +0000 (11:18 +0200)]
md: implement ->free_disk

Ensure that all private data is only freed once all accesses are done.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Logan Gunthorpe <logang@deltatee.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Song Liu <song@kernel.org>
3 years agomd: fix error handling in md_alloc
Christoph Hellwig [Tue, 19 Jul 2022 09:18:16 +0000 (11:18 +0200)]
md: fix error handling in md_alloc

Error handling in md_alloc is a mess.  Untangle it to just free the mddev
directly before add_disk is called and thus the gendisk is globally
visible.  After that clear the hold flag and let the mddev_put take care
of cleaning up the mddev through the usual mechanisms.

Fixes: 5e55e2f5fc95 ("[PATCH] md: convert compile time warnings into runtime warnings")
Fixes: 9be68dd7ac0e ("md: add error handling support for add_disk()")
Fixes: 7ad1069166c0 ("md: properly unwind when failing to add the kobject in md_alloc")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Logan Gunthorpe <logang@deltatee.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Song Liu <song@kernel.org>
3 years agomd: fix mddev->kobj lifetime
Christoph Hellwig [Tue, 19 Jul 2022 09:18:15 +0000 (11:18 +0200)]
md: fix mddev->kobj lifetime

Once a kobject is initialized, the containing object should not be
directly freed.  So delay initialization until it is added.  Also
remove the kobject_del call as the last put will remove the kobject as
well.  The explicitly delete isn't needed here, and dropping it will
simplify further fixes.

With this md_free now does not need to check that ->gendisk is non-NULL
as it is always set by the time that kobject_init is called on
mddev->kobj.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Logan Gunthorpe <logang@deltatee.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Song Liu <song@kernel.org>
3 years agomd/raid5: Convert prepare_to_wait() to wait_woken() api
Logan Gunthorpe [Thu, 7 Jul 2022 19:15:33 +0000 (13:15 -0600)]
md/raid5: Convert prepare_to_wait() to wait_woken() api

raid5_get_active_stripe() can sleep in various situations and it
is called by make_stripe_request() while inside the
prepare_to_wait()/finish_wait() section. Nested waits like this are
not supported.

This was noticed while making other changes that add different sleeps
to raid5_get_active_stripe() that caused a WARNING with
CONFIG_DEBUG_ATOMIC_SLEEP.

No ill effects have been noticed with the code as is, but theoretically
a nested and here could cause a dead lock so it should be fixed.

To fix this, convert the prepare_to_wait() call to use wake_woken()
which supports nested sleeps.

Link: https://lwn.net/Articles/628628/
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Song Liu <song@kernel.org>
3 years agomd/raid5: Fix sectors_to_do bitmap overflow in raid5_make_request()
Logan Gunthorpe [Thu, 7 Jul 2022 19:15:32 +0000 (13:15 -0600)]
md/raid5: Fix sectors_to_do bitmap overflow in raid5_make_request()

For unaligned IO that have nearly maximum sectors, the number of stripes
will end up being one greater than the size of the bitmap. When this
happens, the last stripe in the IO will not be processed as it should
be, resulting in data corruption.

However, this is not normally seen when the backing block devices have
4K physical block sizes since the block layer will split the request
before that happens.

To fix this increase the bitmap size by one bit and ensure the full
number of stripes are checked when calling find_first_bit().

Reported-by: David Sloan <David.Sloan@eideticom.com>
Fixes: a5b9c6a653fb ("md/raid5: Pivot raid5_make_request()")
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Song Liu <song@kernel.org>
3 years agoMerge branch 'for-5.20/drivers' into for-5.20/drivers-post
Jens Axboe [Wed, 20 Jul 2022 03:03:38 +0000 (21:03 -0600)]
Merge branch 'for-5.20/drivers' into for-5.20/drivers-post

* for-5.20/drivers: (66 commits)
  null_blk: fix ida error handling in null_add_dev()
  null_blk: cleanup null_init_tag_set
  nvme-multipath: refactor nvme_mpath_add_disk
  nvme-apple: use nvme core helper to cancel requests in tagset
  nvme-pci: use nvme core helper to cancel requests in tagset
  nvme-tcp: use in-capsule data for I/O connect
  nvme-rdma: remove timeout for getting RDMA-CM established event
  null_blk: add configfs variables for 2 options
  null_blk: add module parameters for 4 options
  block/rnbd-srv: Replace sess_dev_list with index_idr
  block/rnbd-srv: Set keep_id to true after mutex_trylock
  nvmet-auth: expire authentication sessions
  nvmet-auth: Diffie-Hellman key exchange support
  nvmet: implement basic In-Band Authentication
  nvmet: parse fabrics commands on io queues
  nvme-auth: Diffie-Hellman key exchange support
  nvme: implement In-Band authentication
  nvme-fabrics: decode 'authentication required' connect error
  nvme: add definitions for NVMe In-Band authentication
  lib/base64: RFC4648-compliant base64 encoding
  ...

Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoMerge branch 'for-5.20/block' into for-5.20/drivers-post
Jens Axboe [Wed, 20 Jul 2022 03:02:54 +0000 (21:02 -0600)]
Merge branch 'for-5.20/block' into for-5.20/drivers-post

* for-5.20/block: (162 commits)
  mmc: fix disk/queue leak in case of adding disk failure
  ublk_drv: fix an IS_ERR() vs NULL check
  ublk: remove UBLK_IO_F_INTEGRITY
  ublk_drv: remove unneeded semicolon
  ublk_drv: fix missing error return code in ublk_add_dev()
  ublk_drv: fix build warning with -Wmaybe-uninitialized and one sparse warning
  blktrace: Fix the blk_fill_rwbs() kernel-doc header
  fs/buffer: Fix the ll_rw_block() kernel-doc header
  fs/zonefs: Use the enum req_op type for tracing request operations
  fs/xfs: Use the enum req_op and blk_opf_t types
  PM: Use the enum req_op and blk_opf_t types
  fs/ocfs2: Use the enum req_op and blk_opf_t types
  fs/ntfs3: Use enum req_op where appropriate
  fs/nilfs2: Use the enum req_op and blk_opf_t types
  fs/nfs: Use enum req_op where appropriate
  fs/jbd2: Fix the documentation of the jbd2_write_superblock() callers
  fs/iomap: Use the new blk_opf_t type
  fs/hfsplus: Use the enum req_op and blk_opf_t types
  fs/gfs2: Use the enum req_op and blk_opf_t types
  fs/f2fs: Use the enum req_op and blk_opf_t types
  ...

3 years agoMerge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
Linus Torvalds [Tue, 19 Jul 2022 00:16:22 +0000 (17:16 -0700)]
Merge tag 'for-linus' of git://git./linux/kernel/git/rdma/rdma

Pull rdma fixes from Jason Gunthorpe:
 "Two bug fixes for irdma:

   - x722 does not support 1GB pages, trying to configure them will
     corrupt the dma mapping

   - Fix a sleep while holding a spinlock"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
  RDMA/irdma: Fix sleep from invalid context BUG
  RDMA/irdma: Do not advertise 1GB page size for x722

3 years agommc: fix disk/queue leak in case of adding disk failure
Ming Lei [Mon, 18 Jul 2022 16:08:51 +0000 (00:08 +0800)]
mmc: fix disk/queue leak in case of adding disk failure

In case of adding disk failure, the disk needs to be released, otherwise
disk/queue is leaked.

Signed-off-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20220718160851.312972-1-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoublk_drv: fix an IS_ERR() vs NULL check
Dan Carpenter [Mon, 18 Jul 2022 11:14:09 +0000 (14:14 +0300)]
ublk_drv: fix an IS_ERR() vs NULL check

The blk_mq_alloc_disk_for_queue() doesn't return error pointers, it
returns NULL on error.

Fixes: cebbe577cb17 ("ublk_drv: fix request queue leak")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/YtVAgedTsQVK1oTM@kili
Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoublk: remove UBLK_IO_F_INTEGRITY
Christoph Hellwig [Mon, 18 Jul 2022 06:30:13 +0000 (08:30 +0200)]
ublk: remove UBLK_IO_F_INTEGRITY

The ublk protocol has no mechanism to actually transfer the integrity
metadata, so don't define this flag, which requires that an integrity
payload is attached to a bio.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20220718063013.335531-1-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoublk_drv: remove unneeded semicolon
Yang Li [Mon, 18 Jul 2022 01:54:31 +0000 (09:54 +0800)]
ublk_drv: remove unneeded semicolon

Eliminate the following coccicheck warnings:
./drivers/block/ublk_drv.c:1467:2-3: Unneeded semicolon
./drivers/block/ublk_drv.c:1528:2-3: Unneeded semicolon

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20220718015431.40185-1-yang.lee@linux.alibaba.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoublk_drv: fix missing error return code in ublk_add_dev()
Yang Yingliang [Mon, 18 Jul 2022 04:24:08 +0000 (12:24 +0800)]
ublk_drv: fix missing error return code in ublk_add_dev()

If blk_mq_init_queue() fails, it should return error code in ublk_add_dev()

Fixes: cebbe577cb17 ("ublk_drv: fix request queue leak")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20220718042408.3132835-1-yangyingliang@huawei.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoMerge tag 'hte/for-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux
Linus Torvalds [Mon, 18 Jul 2022 18:47:04 +0000 (11:47 -0700)]
Merge tag 'hte/for-5.19' of git://git./linux/kernel/git/tegra/linux

Pull hardware timestamp fix from Thierry Reding:
 "A single fix for an out-of-sync kerneldoc comment"

* tag 'hte/for-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
  gpiolib: cdev: Fix kernel doc for struct line

3 years agoLinux 5.19-rc7 v5.19-rc7
Linus Torvalds [Sun, 17 Jul 2022 20:30:22 +0000 (13:30 -0700)]
Linux 5.19-rc7

3 years agoMerge tag 'drm-intel-fixes-2022-07-17' of git://anongit.freedesktop.org/drm/drm-intel
Linus Torvalds [Sun, 17 Jul 2022 20:08:03 +0000 (13:08 -0700)]
Merge tag 'drm-intel-fixes-2022-07-17' of git://anongit.freedesktop.org/drm/drm-intel

Pull intel drm build fix from Rodrigo Vivi:
 "Our 'dim' flow has a problem with fixes of fixes getting missed. We
  need to take a look on that later.

  Meanwhile, please allow me to quickly propagate this fix for the
  32-bit build issue here upstream"

* tag 'drm-intel-fixes-2022-07-17' of git://anongit.freedesktop.org/drm/drm-intel:
  drm/i915/ttm: fix 32b build

3 years agoMerge tag 'perf-tools-fixes-for-v5.19-2022-07-17' of git://git.kernel.org/pub/scm...
Linus Torvalds [Sun, 17 Jul 2022 19:42:57 +0000 (12:42 -0700)]
Merge tag 'perf-tools-fixes-for-v5.19-2022-07-17' of git://git./linux/kernel/git/acme/linux

Pull perf tools fixes from Arnaldo Carvalho de Melo:

 - Fix SIGSEGV when processing syscall args in perf.data files in 'perf
   trace'

 - Sync kvm, msr-index and cpufeatures headers with the kernel sources

 - Fix 'convert perf time to TSC' 'perf test':
     - No need to open events twice
     - Fix finding correct event on hybrid systems

* tag 'perf-tools-fixes-for-v5.19-2022-07-17' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
  perf trace: Fix SIGSEGV when processing syscall args
  perf tests: Fix Convert perf time to TSC test for hybrid
  perf tests: Stop Convert perf time to TSC test opening events twice
  tools arch x86: Sync the msr-index.h copy with the kernel sources
  tools headers cpufeatures: Sync with the kernel sources
  tools headers UAPI: Sync linux/kvm.h with the kernel sources

3 years agodrm/i915/ttm: fix 32b build
Matthew Auld [Tue, 12 Jul 2022 17:40:50 +0000 (18:40 +0100)]
drm/i915/ttm: fix 32b build

Since segment_pages is no longer a compile time constant, it looks the
DIV_ROUND_UP(node->size, segment_pages) breaks the 32b build. Simplest
is just to use the ULL variant, but really we should need not need more
than u32 for the page alignment (also we are limited by that due to the
sg->length type), so also make it all u32.

Reported-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Fixes: aff1e0b09b54 ("drm/i915/ttm: fix sg_table construction")
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Nirmoy Das <nirmoy.das@linux.intel.com>
Reviewed-by: Nirmoy Das <nirmoy.das@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220712174050.592550-1-matthew.auld@intel.com
(cherry picked from commit 9306b2b2dfce6931241ef804783692cee526599c)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
3 years agoMerge tag 'perf_urgent_for_v5.19_rc7' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 17 Jul 2022 15:34:02 +0000 (08:34 -0700)]
Merge tag 'perf_urgent_for_v5.19_rc7' of git://git./linux/kernel/git/tip/tip

Pull perf fix from Borislav Petkov:

 - A single data race fix on the perf event cleanup path to avoid
   endless loops due to insufficient locking

* tag 'perf_urgent_for_v5.19_rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/core: Fix data race between perf_event_set_output() and perf_mmap_close()

3 years agoMerge tag 'x86_urgent_for_v5.19_rc7' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 17 Jul 2022 15:27:30 +0000 (08:27 -0700)]
Merge tag 'x86_urgent_for_v5.19_rc7' of git://git./linux/kernel/git/tip/tip

Pull x86 fixes from Borislav Petkov:

 - Improve the check whether the kernel supports WP mappings so that it
   can accomodate a XenPV guest due to how the latter is setting up the
   PAT machinery

  - Now that the retbleed nightmare is public, here's the first round of
    fallout fixes:

      * Fix a build failure on 32-bit due to missing include

      * Remove an untraining point in espfix64 return path

      * other small cleanups

* tag 'x86_urgent_for_v5.19_rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/bugs: Remove apostrophe typo
  um: Add missing apply_returns()
  x86/entry: Remove UNTRAIN_RET from native_irq_return_ldt
  x86/bugs: Mark retbleed_strings static
  x86/pat: Fix x86_has_pat_wp()
  x86/asm/32: Fix ANNOTATE_UNRET_SAFE use on 32-bit

3 years agoMerge tag 'gpio-fixes-for-v5.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 17 Jul 2022 14:58:19 +0000 (07:58 -0700)]
Merge tag 'gpio-fixes-for-v5.19-rc7' of git://git./linux/kernel/git/brgl/linux

Pull gpio fix from Bartosz Golaszewski:

 - fix a configfs attribute of the gpio-sim module

* tag 'gpio-fixes-for-v5.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
  gpio: sim: fix the chip_name configfs item

3 years agoMerge tag 'input-for-v5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sun, 17 Jul 2022 14:52:46 +0000 (07:52 -0700)]
Merge tag 'input-for-v5.19-rc6' of git://git./linux/kernel/git/dtor/input

Pull input fixes from Dmitry Torokhov:

 - fix Goodix driver to properly behave on the Aya Neo Next

 - some more sanity checks in usbtouchscreen driver

 - a tweak in wm97xx driver in preparation for remove() to return void

 - a clarification in input core regarding units of measurement for
   resolution on touch events.

* tag 'input-for-v5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: document the units for resolution of size axes
  Input: goodix - call acpi_device_fix_up_power() in some cases
  Input: wm97xx - make .remove() obviously always return 0
  Input: usbtouchscreen - add driver_info sanity check

3 years agoMerge tag 'for-v5.19-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux...
Linus Torvalds [Sun, 17 Jul 2022 14:45:51 +0000 (07:45 -0700)]
Merge tag 'for-v5.19-rc' of git://git./linux/kernel/git/sre/linux-power-supply

Pull power supply fixes from Sebastian Reichel:

 - power-supply core temperature interpolation regression fix for
   incorrect boundaries

 - ab8500 needs to destroy its work queues in error paths

 - Fix old DT refcount leak in arm-versatile

* tag 'for-v5.19-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply:
  power: supply: core: Fix boundary conditions in interpolation
  power/reset: arm-versatile: Fix refcount leak in versatile_reboot_probe
  power: supply: ab8500_fg: add missing destroy_workqueue in ab8500_fg_probe

3 years agoperf trace: Fix SIGSEGV when processing syscall args
Naveen N. Rao [Thu, 7 Jul 2022 09:09:00 +0000 (14:39 +0530)]
perf trace: Fix SIGSEGV when processing syscall args

On powerpc, 'perf trace' is crashing with a SIGSEGV when trying to
process a perf.data file created with 'perf trace record -p':

  #0  0x00000001225b8988 in syscall_arg__scnprintf_augmented_string <snip> at builtin-trace.c:1492
  #1  syscall_arg__scnprintf_filename <snip> at builtin-trace.c:1492
  #2  syscall_arg__scnprintf_filename <snip> at builtin-trace.c:1486
  #3  0x00000001225bdd9c in syscall_arg_fmt__scnprintf_val <snip> at builtin-trace.c:1973
  #4  syscall__scnprintf_args <snip> at builtin-trace.c:2041
  #5  0x00000001225bff04 in trace__sys_enter <snip> at builtin-trace.c:2319

That points to the below code in tools/perf/builtin-trace.c:
/*
 * If this is raw_syscalls.sys_enter, then it always comes with the 6 possible
 * arguments, even if the syscall being handled, say "openat", uses only 4 arguments
 * this breaks syscall__augmented_args() check for augmented args, as we calculate
 * syscall->args_size using each syscalls:sys_enter_NAME tracefs format file,
 * so when handling, say the openat syscall, we end up getting 6 args for the
 * raw_syscalls:sys_enter event, when we expected just 4, we end up mistakenly
 * thinking that the extra 2 u64 args are the augmented filename, so just check
 * here and avoid using augmented syscalls when the evsel is the raw_syscalls one.
 */
if (evsel != trace->syscalls.events.sys_enter)
augmented_args = syscall__augmented_args(sc, sample, &augmented_args_size, trace->raw_augmented_syscalls_args_size);

As the comment points out, we should not be trying to augment the args
for raw_syscalls. However, when processing a perf.data file, we are not
initializing those properly. Fix the same.

Reported-by: Claudio Carvalho <cclaudio@linux.ibm.com>
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lore.kernel.org/lkml/20220707090900.572584-1-naveen.n.rao@linux.vnet.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
3 years agoperf tests: Fix Convert perf time to TSC test for hybrid
Adrian Hunter [Wed, 13 Jul 2022 12:34:59 +0000 (15:34 +0300)]
perf tests: Fix Convert perf time to TSC test for hybrid

The test does not always correctly determine the number of events for
hybrids, nor allow for more than 1 evsel when parsing.

Fix by iterating the events actually created and getting the correct
evsel for the events processed.

Fixes: d9da6f70eb235110 ("perf tests: Support 'Convert perf time to TSC' test for hybrid")
Reviewed-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Link: https://lore.kernel.org/r/20220713123459.24145-3-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
3 years agoperf tests: Stop Convert perf time to TSC test opening events twice
Adrian Hunter [Wed, 13 Jul 2022 12:34:58 +0000 (15:34 +0300)]
perf tests: Stop Convert perf time to TSC test opening events twice

Do not call evlist__open() twice.

Fixes: 5bb017d4b97a0f13 ("perf test: Fix error message for test case 71 on s390, where it is not supported")
Reviewed-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Link: https://lore.kernel.org/r/20220713123459.24145-2-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
3 years agotools arch x86: Sync the msr-index.h copy with the kernel sources
Arnaldo Carvalho de Melo [Thu, 1 Jul 2021 16:32:18 +0000 (13:32 -0300)]
tools arch x86: Sync the msr-index.h copy with the kernel sources

To pick up the changes from these csets:

  4ad3278df6fe2b08 ("x86/speculation: Disable RRSBA behavior")
  d7caac991feeef1b ("x86/cpu/amd: Add Spectral Chicken")

That cause no changes to tooling:

  $ tools/perf/trace/beauty/tracepoints/x86_msr.sh > before
  $ cp arch/x86/include/asm/msr-index.h tools/arch/x86/include/asm/msr-index.h
  $ tools/perf/trace/beauty/tracepoints/x86_msr.sh > after
  $ diff -u before after
  $

Just silences this perf build warning:

  Warning: Kernel ABI header at 'tools/arch/x86/include/asm/msr-index.h' differs from latest version at 'arch/x86/include/asm/msr-index.h'
  diff -u tools/arch/x86/include/asm/msr-index.h arch/x86/include/asm/msr-index.h

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Pawan Gupta <pawan.kumar.gupta@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/lkml/YtQTm9wsB3hxQWvy@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
3 years agotools headers cpufeatures: Sync with the kernel sources
Arnaldo Carvalho de Melo [Thu, 1 Jul 2021 16:39:15 +0000 (13:39 -0300)]
tools headers cpufeatures: Sync with the kernel sources

To pick the changes from:

  f43b9876e857c739 ("x86/retbleed: Add fine grained Kconfig knobs")
  a149180fbcf336e9 ("x86: Add magic AMD return-thunk")
  15e67227c49a5783 ("x86: Undo return-thunk damage")
  369ae6ffc41a3c11 ("x86/retpoline: Cleanup some #ifdefery")
  4ad3278df6fe2b08 x86/speculation: Disable RRSBA behavior
  26aae8ccbc197223 x86/cpu/amd: Enumerate BTC_NO
  9756bba28470722d x86/speculation: Fill RSB on vmexit for IBRS
  3ebc170068885b6f x86/bugs: Add retbleed=ibpb
  2dbb887e875b1de3 x86/entry: Add kernel IBRS implementation
  6b80b59b35557065 x86/bugs: Report AMD retbleed vulnerability
  a149180fbcf336e9 x86: Add magic AMD return-thunk
  15e67227c49a5783 x86: Undo return-thunk damage
  a883d624aed463c8 x86/cpufeatures: Move RETPOLINE flags to word 11
  51802186158c74a0 x86/speculation/mmio: Enumerate Processor MMIO Stale Data bug

This only causes these perf files to be rebuilt:

  CC       /tmp/build/perf/bench/mem-memcpy-x86-64-asm.o
  CC       /tmp/build/perf/bench/mem-memset-x86-64-asm.o

And addresses this perf build warning:

  Warning: Kernel ABI header at 'tools/arch/x86/include/asm/cpufeatures.h' differs from latest version at 'arch/x86/include/asm/cpufeatures.h'
  diff -u tools/arch/x86/include/asm/cpufeatures.h arch/x86/include/asm/cpufeatures.h
  Warning: Kernel ABI header at 'tools/arch/x86/include/asm/disabled-features.h' differs from latest version at 'arch/x86/include/asm/disabled-features.h'
  diff -u tools/arch/x86/include/asm/disabled-features.h arch/x86/include/asm/disabled-features.h

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org
Link: https://lore.kernel.org/lkml/YtQM40VmiLTkPND2@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
3 years agotools headers UAPI: Sync linux/kvm.h with the kernel sources
Arnaldo Carvalho de Melo [Sun, 9 May 2021 12:39:02 +0000 (09:39 -0300)]
tools headers UAPI: Sync linux/kvm.h with the kernel sources

To pick the changes in:

  1b870fa5573e260b ("kvm: stats: tell userspace which values are boolean")

That just rebuilds perf, as these patches don't add any new KVM ioctl to
be harvested for the the 'perf trace' ioctl syscall argument
beautifiers.

This is also by now used by tools/testing/selftests/kvm/, a simple test
build succeeded.

This silences this perf build warning:

  Warning: Kernel ABI header at 'tools/include/uapi/linux/kvm.h' differs from latest version at 'include/uapi/linux/kvm.h'
  diff -u tools/include/uapi/linux/kvm.h include/uapi/linux/kvm.h

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Link: http://lore.kernel.org/lkml/YtQLDvQrBhJNl3n5@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
3 years agoMerge tag 'for-5.19-rc7-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave...
Linus Torvalds [Sat, 16 Jul 2022 20:48:55 +0000 (13:48 -0700)]
Merge tag 'for-5.19-rc7-tag' of git://git./linux/kernel/git/kdave/linux

Pull btrfs reverts from David Sterba:
 "Due to a recent report [1] we need to revert the radix tree to xarray
  conversion patches.

  There's a problem with sleeping under spinlock, when xa_insert could
  allocate memory under pressure. We use GFP_NOFS so this is a real
  problem that we unfortunately did not discover during review.

  I'm sorry to do such change at rc6 time but the revert is IMO the
  safer option, there are patches to use mutex instead of the spin locks
  but that would need more testing. The revert branch has been tested on
  a few setups, all seem ok.

  The conversion to xarray will be revisited in the future"

Link: https://lore.kernel.org/linux-btrfs/cover.1657097693.git.fdmanana@suse.com/
* tag 'for-5.19-rc7-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
  Revert "btrfs: turn delayed_nodes_tree into an XArray"
  Revert "btrfs: turn name_cache radix tree into XArray in send_ctx"
  Revert "btrfs: turn fs_info member buffer_radix into XArray"
  Revert "btrfs: turn fs_roots_radix in btrfs_fs_info into an XArray"

3 years agoMerge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Linus Torvalds [Sat, 16 Jul 2022 18:45:40 +0000 (11:45 -0700)]
Merge tag 'scsi-fixes' of git://git./linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "Six small and reasonably obvious fixes, all in drivers"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: pm80xx: Set stopped phy's linkrate to Disabled
  scsi: pm80xx: Fix 'Unknown' max/min linkrate
  scsi: ufs: core: Fix missing clk change notification on host reset
  scsi: ufs: core: Drop loglevel of WriteBoost message
  scsi: megaraid: Clear READ queue map's nr_queues
  scsi: target: Fix WRITE_SAME No Data Buffer crash

3 years agoMerge tag 'block-5.19-2022-07-15' of git://git.kernel.dk/linux-block
Linus Torvalds [Sat, 16 Jul 2022 18:40:10 +0000 (11:40 -0700)]
Merge tag 'block-5.19-2022-07-15' of git://git.kernel.dk/linux-block

Pull block fixes from Jens Axboe:
 "Two NVMe fixes, and a regression fix for the core block layer from
  this merge window"

* tag 'block-5.19-2022-07-15' of git://git.kernel.dk/linux-block:
  block: fix missing blkcg_bio_issue_init
  nvme: fix block device naming collision
  nvme-pci: fix freeze accounting for error handling

3 years agoMerge tag 'usb-5.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Linus Torvalds [Sat, 16 Jul 2022 18:21:15 +0000 (11:21 -0700)]
Merge tag 'usb-5.19-rc7' of git://git./linux/kernel/git/gregkh/usb

Pull USB driver fixes from Greg KH:
 "Here are some small USB driver fixes and new device ids for 5.19-rc7.
  They include:

   - new usb-serial driver ids

   - typec uevent fix

   - uvc gadget driver fix

   - dwc3 driver fixes

   - ehci-fsl driver fix

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'usb-5.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  USB: serial: ftdi_sio: add Belimo device ids
  drivers/usb/host/ehci-fsl: Fix interrupt setup in host mode.
  usb: gadget: uvc: fix changing interface name via configfs
  usb: typec: add missing uevent when partner support PD
  usb: dwc3-am62: remove unnecesary clk_put()
  usb: dwc3: gadget: Fix event pending check

3 years agoMerge tag 'tty-5.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Linus Torvalds [Sat, 16 Jul 2022 18:11:56 +0000 (11:11 -0700)]
Merge tag 'tty-5.19-rc7' of git://git./linux/kernel/git/gregkh/tty

Pull tty and serial driver fixes from Greg KH:
 "Here are some TTY and Serial driver fixes for 5.19-rc7. They resolve a
  number of reported problems including:

   - longtime bug in pty_write() that has been reported in the past.

   - 8250 driver fixes

   - new serial device ids

   - vt overlapping data copy bugfix

   - other tiny serial driver bugfixes

  All of these have been in linux-next for a while with no reported
  problems"

* tag 'tty-5.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  tty: use new tty_insert_flip_string_and_push_buffer() in pty_write()
  tty: extract tty_flip_buffer_commit() from tty_flip_buffer_push()
  serial: 8250: dw: Fix the macro RZN1_UART_xDMACR_8_WORD_BURST
  vt: fix memory overlapping when deleting chars in the buffer
  serial: mvebu-uart: correctly report configured baudrate value
  serial: 8250: Fix PM usage_count for console handover
  serial: 8250: fix return error code in serial8250_request_std_resource()
  serial: stm32: Clear prev values before setting RTS delays
  tty: Add N_CAN327 line discipline ID for ELM327 based CAN driver
  serial: 8250: Fix __stop_tx() & DMA Tx restart races
  serial: pl011: UPSTAT_AUTORTS requires .throttle/unthrottle
  tty: serial: samsung_tty: set dma burst_size to 1
  serial: 8250: dw: enable using pdata with ACPI

3 years agoMerge tag 's390-5.19-6' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Linus Torvalds [Sat, 16 Jul 2022 18:00:40 +0000 (11:00 -0700)]
Merge tag 's390-5.19-6' of git://git./linux/kernel/git/s390/linux

Pull s390 fixes from Alexander Gordeev:

 - Fix building of out-of-tree kernel modules without a pre-built kernel
   in case CONFIG_EXPOLINE_EXTERN=y.

 - Fix a reference counting error that could prevent unloading of zcrypt
   modules.

* tag 's390-5.19-6' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/ap: fix error handling in __verify_queue_reservations()
  s390/nospec: remove unneeded header includes
  s390/nospec: build expoline.o for modules_prepare target

3 years agoMerge tag 'pm-5.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Linus Torvalds [Sat, 16 Jul 2022 17:56:28 +0000 (10:56 -0700)]
Merge tag 'pm-5.19-rc7' of git://git./linux/kernel/git/rafael/linux-pm

Pull power management fix from Rafael Wysocki
 "Fix recent regression in the cpufreq mediatek driver related to
  incorrect handling of regulator_get_optional() return value
  (AngeloGioacchino Del Regno)"

* tag 'pm-5.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  cpufreq: mediatek: Handle sram regulator probe deferral

3 years agoMerge tag 'acpi-5.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael...
Linus Torvalds [Sat, 16 Jul 2022 17:52:41 +0000 (10:52 -0700)]
Merge tag 'acpi-5.19-rc7' of git://git./linux/kernel/git/rafael/linux-pm

Pull ACPI fix from Rafael Wysocki:
 "Fix more fallout from recent changes of the ACPI CPPC handling on AMD
  platforms (Mario Limonciello)"

* tag 'acpi-5.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI: CPPC: Fix enabling CPPC on AMD systems with shared memory

3 years agoMerge tag 'printk-for-5.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sat, 16 Jul 2022 17:46:03 +0000 (10:46 -0700)]
Merge tag 'printk-for-5.19-rc7' of git://git./linux/kernel/git/printk/linux

Pull printk fix from Petr Mladek:

 - Make pr_flush() fast when consoles are suspended.

* tag 'printk-for-5.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux:
  printk: do not wait for consoles when suspended

3 years agorandom: cap jitter samples per bit to factor of HZ
Jason A. Donenfeld [Wed, 13 Jul 2022 15:11:15 +0000 (17:11 +0200)]
random: cap jitter samples per bit to factor of HZ

Currently the jitter mechanism will require two timer ticks per
iteration, and it requires N iterations per bit. This N is determined
with a small measurement, and if it's too big, it won't waste time with
jitter entropy because it'd take too long or not have sufficient entropy
anyway.

With the current max N of 32, there are large timeouts on systems with a
small CONFIG_HZ. Rather than set that maximum to 32, instead choose a
factor of CONFIG_HZ. In this case, 1/30 seems to yield sane values for
different configurations of CONFIG_HZ.

Reported-by: Vladimir Murzin <vladimir.murzin@arm.com>
Fixes: 78c768e619fb ("random: vary jitter iterations based on cycle counter speed")
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Tested-by: Vladimir Murzin <vladimir.murzin@arm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
3 years agoefi/x86: use naked RET on mixed mode call wrapper
Thadeu Lima de Souza Cascardo [Fri, 15 Jul 2022 19:45:50 +0000 (16:45 -0300)]
efi/x86: use naked RET on mixed mode call wrapper

When running with return thunks enabled under 32-bit EFI, the system
crashes with:

  kernel tried to execute NX-protected page - exploit attempt? (uid: 0)
  BUG: unable to handle page fault for address: 000000005bc02900
  #PF: supervisor instruction fetch in kernel mode
  #PF: error_code(0x0011) - permissions violation
  PGD 18f7063 P4D 18f7063 PUD 18ff063 PMD 190e063 PTE 800000005bc02063
  Oops: 0011 [#1] PREEMPT SMP PTI
  CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.19.0-rc6+ #166
  Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 0.0.0 02/06/2015
  RIP: 0010:0x5bc02900
  Code: Unable to access opcode bytes at RIP 0x5bc028d6.
  RSP: 0018:ffffffffb3203e10 EFLAGS: 00010046
  RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000048
  RDX: 000000000190dfac RSI: 0000000000001710 RDI: 000000007eae823b
  RBP: ffffffffb3203e70 R08: 0000000001970000 R09: ffffffffb3203e28
  R10: 747563657865206c R11: 6c6977203a696665 R12: 0000000000001710
  R13: 0000000000000030 R14: 0000000001970000 R15: 0000000000000001
  FS:  0000000000000000(0000) GS:ffff8e013ca00000(0000) knlGS:0000000000000000
  CS:  0010 DS: 0018 ES: 0018 CR0: 0000000080050033
  CR2: 000000005bc02900 CR3: 0000000001930000 CR4: 00000000000006f0
  Call Trace:
   ? efi_set_virtual_address_map+0x9c/0x175
   efi_enter_virtual_mode+0x4a6/0x53e
   start_kernel+0x67c/0x71e
   x86_64_start_reservations+0x24/0x2a
   x86_64_start_kernel+0xe9/0xf4
   secondary_startup_64_no_verify+0xe5/0xeb

That's because it cannot jump to the return thunk from the 32-bit code.

Using a naked RET and marking it as safe allows the system to proceed
booting.

Fixes: aa3d480315ba ("x86: Use return-thunk in asm code")
Reported-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@canonical.com>
Cc: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Borislav Petkov <bp@suse.de>
Cc: Josh Poimboeuf <jpoimboe@kernel.org>
Cc: <stable@vger.kernel.org>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
3 years agoublk_drv: fix build warning with -Wmaybe-uninitialized and one sparse warning
Ming Lei [Sat, 16 Jul 2022 09:53:44 +0000 (17:53 +0800)]
ublk_drv: fix build warning with -Wmaybe-uninitialized and one sparse warning

After applying -Wmaybe-uninitialized manually, two build warnings are
triggered:

drivers/block/ublk_drv.c:940:11: warning: ‘io’ may be used uninitialized [-Wmaybe-uninitialized]
  940 |         io->flags &= ~UBLK_IO_FLAG_ACTIVE;

drivers/block/ublk_drv.c: In function ‘ublk_ctrl_uring_cmd’:
drivers/block/ublk_drv.c:1531:9: warning: ‘ret’ may be used uninitialized [-Wmaybe-uninitialized]

Fix the 1st one by removing 'io->flags &= ~UBLK_IO_FLAG_ACTIVE;' which
isn't needed since the function always return successfully after setting
this flag.

Fix the 2nd one by always initializing 'ret'.

Also fix another sparse warning of 'sparse: sparse: incorrect type in return
expression' by changing return type of ublk_setup_iod().

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20220716095344.222674-1-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agox86/bugs: Remove apostrophe typo
Kim Phillips [Fri, 8 Jul 2022 21:21:28 +0000 (16:21 -0500)]
x86/bugs: Remove apostrophe typo

Remove a superfluous ' in the mitigation string.

Fixes: e8ec1b6e08a2 ("x86/bugs: Enable STIBP for JMP2RET")
Signed-off-by: Kim Phillips <kim.phillips@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
3 years agoblktrace: Fix the blk_fill_rwbs() kernel-doc header
Bart Van Assche [Fri, 15 Jul 2022 18:47:35 +0000 (11:47 -0700)]
blktrace: Fix the blk_fill_rwbs() kernel-doc header

Reflect recent changes in the blk_fill_rwbs() kernel-doc header.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Li Zefan <lizf@cn.fujitsu.com>
Cc: Chaitanya Kulkarni <kch@nvidia.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Fixes: 919dbca8670d ("blktrace: Use the new blk_opf_t type")
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20220715184735.2326034-3-bvanassche@acm.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agofs/buffer: Fix the ll_rw_block() kernel-doc header
Bart Van Assche [Fri, 15 Jul 2022 18:47:34 +0000 (11:47 -0700)]
fs/buffer: Fix the ll_rw_block() kernel-doc header

Bring the ll_rw_block() kernel-doc header again in sync with the
function prototype.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Jan Kara <jack@suse.cz>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Fixes: 1420c4a549bf ("fs/buffer: Combine two submit_bh() and ll_rw_block() arguments")
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20220715184735.2326034-2-bvanassche@acm.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoMerge tag 'riscv-for-linus-5.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 15 Jul 2022 17:40:50 +0000 (10:40 -0700)]
Merge tag 'riscv-for-linus-5.19-rc7' of git://git./linux/kernel/git/riscv/linux

Pull RISC-V fixes from Palmer Dabbelt:

 - A fix to avoid printing a warning when modules do not exercise any
   errata-dependent behavior and the SiFive errata are enabled.

 - A fix to the Microchip PFSOC to attach the L2 cache to the CPU nodes.

* tag 'riscv-for-linus-5.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
  riscv: don't warn for sifive erratas in modules
  riscv: dts: microchip: hook up the mpfs' l2cache

3 years agoMerge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Linus Torvalds [Fri, 15 Jul 2022 17:31:46 +0000 (10:31 -0700)]
Merge tag 'for-linus' of git://git./virt/kvm/kvm

Pull KVM fixes from Paolo Bonzini:
 "RISC-V:
   - Fix missing PAGE_PFN_MASK

   - Fix SRCU deadlock caused by kvm_riscv_check_vcpu_requests()

  x86:
   - Fix for nested virtualization when TSC scaling is active

   - Estimate the size of fastcc subroutines conservatively, avoiding
     disastrous underestimation when return thunks are enabled

   - Avoid possible use of uninitialized fields of 'struct
     kvm_lapic_irq'

  Generic:
   - Mark as such the boolean values available from the statistics file
     descriptors

   - Clarify statistics documentation"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: emulate: do not adjust size of fastop and setcc subroutines
  KVM: x86: Fully initialize 'struct kvm_lapic_irq' in kvm_pv_kick_cpu_op()
  Documentation: kvm: clarify histogram units
  kvm: stats: tell userspace which values are boolean
  x86/kvm: fix FASTOP_SIZE when return thunks are enabled
  KVM: nVMX: Always enable TSC scaling for L2 when it was enabled for L1
  RISC-V: KVM: Fix SRCU deadlock caused by kvm_riscv_check_vcpu_requests()
  riscv: Fix missing PAGE_PFN_MASK

3 years agoMerge tag 'ceph-for-5.19-rc7' of https://github.com/ceph/ceph-client
Linus Torvalds [Fri, 15 Jul 2022 17:27:28 +0000 (10:27 -0700)]
Merge tag 'ceph-for-5.19-rc7' of https://github.com/ceph/ceph-client

Pull ceph fix from Ilya Dryomov:
 "A folio locking fixup that Xiubo and David cooperated on, marked for
  stable. Most of it is in netfs but I picked it up into ceph tree on
  agreement with David"

* tag 'ceph-for-5.19-rc7' of https://github.com/ceph/ceph-client:
  netfs: do not unlock and put the folio twice

3 years agoMerge tag 'spi-fix-v5.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/brooni...
Linus Torvalds [Fri, 15 Jul 2022 17:23:43 +0000 (10:23 -0700)]
Merge tag 'spi-fix-v5.19-rc4' of git://git./linux/kernel/git/broonie/spi

Pull spi fixes from Mark Brown:
 "A few driver specific fixes, none especially remarkable, plus a
  MAINTAINERS file update due to the previous maintainer for the NXP
  FSPI driver having left the company"

* tag 'spi-fix-v5.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
  spi: cadence-quadspi: Remove spi_master_put() in probe failure path
  MAINTAINERS: change the NXP FSPI driver maintainer.
  spi: amd: Limit max transfer and message size
  spi: aspeed: Fix division by zero
  spi: aspeed: Add dev_dbg() to dump the spi-mem direct mapping descriptor

3 years agoMerge tag 'soc-fixes-5.19-3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Linus Torvalds [Fri, 15 Jul 2022 17:16:44 +0000 (10:16 -0700)]
Merge tag 'soc-fixes-5.19-3' of git://git./linux/kernel/git/soc/soc

Pull ARM SoC fixes from Arnd Bergmann:
 "Most of the contents are bugfixes for the devicetree files:

   - A Qualcomm MSM8974 pin controller regression, caused by a cleanup
     patch that gets partially reverted here.

   - Missing properties for Broadcom BCM49xx to fix timer detection and
     SMP boot.

   - Fix touchscreen pinctrl for imx6ull-colibri board

   - Multiple fixes for Rockchip rk3399 based machines including the vdu
     clock-rate fix, otg port fix on Quartz64-A and ethernet on
     Quartz64-B

   - Fixes for misspelled DT contents causing minor problems on
     imx6qdl-ts7970m, orangepi-zero, sama5d2, kontron-kswitch-d10, and
     ls1028a

  And a couple of changes elsewhere:

   - Fix binding for Allwinner D1 display pipeline

   - Trivial code fixes to the TEE and reset controller driver
     subsystems and the rockchip platform code.

   - Multiple updates to the MAINTAINERS files, marking the Palm Treo
     support as orphaned, and fixing some entries for added or changed
     file names"

* tag 'soc-fixes-5.19-3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (21 commits)
  arm64: dts: broadcom: bcm4908: Fix cpu node for smp boot
  arm64: dts: broadcom: bcm4908: Fix timer node for BCM4906 SoC
  ARM: dts: sunxi: Fix SPI NOR campatible on Orange Pi Zero
  ARM: dts: at91: sama5d2: Fix typo in i2s1 node
  tee: tee_get_drvdata(): fix description of return value
  optee: Remove duplicate 'of' in two places.
  ARM: dts: kswitch-d10: use open drain mode for coma-mode pins
  ARM: dts: colibri-imx6ull: fix snvs pinmux group
  optee: smc_abi.c: fix wrong pointer passed to IS_ERR/PTR_ERR()
  MAINTAINERS: add polarfire rng, pci and clock drivers
  MAINTAINERS: mark ARM/PALM TREO SUPPORT orphan
  ARM: dts: imx6qdl-ts7970: Fix ngpio typo and count
  arm64: dts: ls1028a: Update SFP node to include clock
  dt-bindings: display: sun4i: Fix D1 pipeline count
  ARM: dts: qcom: msm8974: re-add missing pinctrl
  reset: Fix devm bulk optional exclusive control getter
  MAINTAINERS: rectify entry for SYNOPSYS AXS10x RESET CONTROLLER DRIVER
  ARM: rockchip: Add missing of_node_put() in rockchip_suspend_init()
  arm64: dts: rockchip: Assign RK3399 VDU clock rate
  arm64: dts: rockchip: Fix Quartz64-A dwc3 otg port behavior
  ...

3 years agoRevert "btrfs: turn delayed_nodes_tree into an XArray"
David Sterba [Fri, 15 Jul 2022 11:59:45 +0000 (13:59 +0200)]
Revert "btrfs: turn delayed_nodes_tree into an XArray"

This reverts commit 253bf57555e451dec5a7f09dc95d380ce8b10e5b.

Revert the xarray conversion, there's a problem with potential
sleep-inside-spinlock [1] when calling xa_insert that triggers GFP_NOFS
allocation. The radix tree used the preloading mechanism to avoid
sleeping but this is not available in xarray.

Conversion from spin lock to mutex is possible but at time of rc6 is
riskier than a clean revert.

[1] https://lore.kernel.org/linux-btrfs/cover.1657097693.git.fdmanana@suse.com/

Reported-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
3 years agoRevert "btrfs: turn name_cache radix tree into XArray in send_ctx"
David Sterba [Fri, 15 Jul 2022 11:59:38 +0000 (13:59 +0200)]
Revert "btrfs: turn name_cache radix tree into XArray in send_ctx"

This reverts commit 4076942021fe14efecae33bf98566df6dd5ae6f7.

Revert the xarray conversion, there's a problem with potential
sleep-inside-spinlock [1] when calling xa_insert that triggers GFP_NOFS
allocation. The radix tree used the preloading mechanism to avoid
sleeping but this is not available in xarray.

Conversion from spin lock to mutex is possible but at time of rc6 is
riskier than a clean revert.

[1] https://lore.kernel.org/linux-btrfs/cover.1657097693.git.fdmanana@suse.com/

Reported-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
3 years agoRevert "btrfs: turn fs_info member buffer_radix into XArray"
David Sterba [Fri, 15 Jul 2022 11:59:31 +0000 (13:59 +0200)]
Revert "btrfs: turn fs_info member buffer_radix into XArray"

This reverts commit 8ee922689d67b7cfa6acbe2aa1ee76ac72e6fc8a.

Revert the xarray conversion, there's a problem with potential
sleep-inside-spinlock [1] when calling xa_insert that triggers GFP_NOFS
allocation. The radix tree used the preloading mechanism to avoid
sleeping but this is not available in xarray.

Conversion from spin lock to mutex is possible but at time of rc6 is
riskier than a clean revert.

[1] https://lore.kernel.org/linux-btrfs/cover.1657097693.git.fdmanana@suse.com/

Reported-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
3 years agoRevert "btrfs: turn fs_roots_radix in btrfs_fs_info into an XArray"
David Sterba [Fri, 15 Jul 2022 11:59:21 +0000 (13:59 +0200)]
Revert "btrfs: turn fs_roots_radix in btrfs_fs_info into an XArray"

This reverts commit 48b36a602a335c184505346b5b37077840660634.

Revert the xarray conversion, there's a problem with potential
sleep-inside-spinlock [1] when calling xa_insert that triggers GFP_NOFS
allocation. The radix tree used the preloading mechanism to avoid
sleeping but this is not available in xarray.

Conversion from spin lock to mutex is possible but at time of rc6 is
riskier than a clean revert.

[1] https://lore.kernel.org/linux-btrfs/cover.1657097693.git.fdmanana@suse.com/

Reported-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
3 years agoMerge tag 'platform-drivers-x86-v5.19-4' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 15 Jul 2022 17:12:22 +0000 (10:12 -0700)]
Merge tag 'platform-drivers-x86-v5.19-4' of git://git./linux/kernel/git/pdx86/platform-drivers-x86

Pull x86 platform driver fixes from Hans de Goede:
 "Highlights:

   - Fix brightness key events getting reported twice on some Dells.
     Regression caused by recent Panasonic hotkey fixes

   - Fix poweroff no longer working on some devices regression caused
     by recent poweroff handler rework

   - Mark new (in 5.19) Intel IFS driver as broken, because of some
     issues surrounding the userspace (sysfs) API which need to be
     cleared up

   - Some hardware-id / quirk additions"

* tag 'platform-drivers-x86-v5.19-4' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
  ACPI: video: Fix acpi_video_handles_brightness_key_presses()
  platform/x86: intel_atomisp2_led: Also turn off the always-on camera LED on the Asus T100TAF
  platform/x86/intel/ifs: Mark as BROKEN
  platform/x86: asus-wmi: Add key mappings
  efi: Fix efi_power_off() not being run before acpi_power_off() when necessary
  platform/x86: x86-android-tablets: Fix Lenovo Yoga Tablet 2 830/1050 poweroff again
  platform/x86: gigabyte-wmi: add support for B660I AORUS PRO DDR4
  platform/x86/amd/pmc: Add new platform support
  platform/x86/amd/pmc: Add new acpi id for PMC controller

3 years agoMerge tag 'for-linus-5.19a-rc7-tag' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 15 Jul 2022 17:00:49 +0000 (10:00 -0700)]
Merge tag 'for-linus-5.19a-rc7-tag' of git://git./linux/kernel/git/xen/tip

Pull xen fix from Juergen Gross:
 "Fix for the Xen gntdev driver causing inappropriate WARN() messages"

* tag 'for-linus-5.19a-rc7-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  xen/gntdev: Ignore failure to unmap INVALID_GRANT_HANDLE

3 years agoMerge tag 'drm-fixes-2022-07-15' of git://anongit.freedesktop.org/drm/drm
Linus Torvalds [Fri, 15 Jul 2022 16:56:24 +0000 (09:56 -0700)]
Merge tag 'drm-fixes-2022-07-15' of git://anongit.freedesktop.org/drm/drm

Pull drm fixes from Dave Airlie:
 "This is the regular fixes pull for this week. This has a bunch of
  amdgpu fixes, major one reverts the buddy allocator until it can be
  tested more, otherwise just small ones, then i915 has a bunch of
  fixes.

  The outstanding firmware regressions reported by phoronix will
  hopefully be dealt with ASAP.

  amdgpu:
   - revert buddy allocator support for now
   - DP MST blank screen fix for specific platforms
   - MEC firmware check fix for GC 10.3.7
   - Deep color fix for DCE
   - Fix possible divide by 0
   - Coverage blend mode fix
   - Fix cursor only commit timestamps

  i915:
   - Selftest fix
   - TTM fix sg_table construction
   - Error return fixes
   - Fix a performance regression related to waitboost
   - Fix GT resets"

* tag 'drm-fixes-2022-07-15' of git://anongit.freedesktop.org/drm/drm:
  drm/amd/display: Ensure valid event timestamp for cursor-only commits
  drm/amd/display: correct check of coverage blend mode
  drm/amd/pm: Prevent divide by zero
  drm/amd/display: Only use depth 36 bpp linebuffers on DCN display engines.
  drm/amdkfd: correct the MEC atomic support firmware checking for GC 10.3.7
  drm/amd/display: Ignore First MST Sideband Message Return Error
  drm/i915/selftests: fix subtraction overflow bug
  drm/i915/gem: Look for waitboosting across the whole object prior to individual waits
  drm/i915/gt: Serialize TLB invalidates with GT resets
  drm/i915/gt: Serialize GRDOM access between multiple engine resets
  drm/i915/ttm: fix sg_table construction
  drm/i915/selftests: fix a couple IS_ERR() vs NULL tests
  drm/i915: Fix vm use-after-free in vma destruction
  drm/i915/guc: ADL-N should use the same GuC FW as ADL-S
  drm/i915: fix a possible refcount leak in intel_dp_add_mst_connector()
  drm/i915/gvt: IS_ERR() vs NULL bug in intel_gvt_update_reg_whitelist()
  Revert "drm/amdgpu: add drm buddy support to amdgpu"

3 years agoMerge tag 'sysctl-fixes-5.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Fri, 15 Jul 2022 16:52:35 +0000 (09:52 -0700)]
Merge tag 'sysctl-fixes-5.19-rc7' of git://git./linux/kernel/git/mcgrof/linux

Pyll sysctl fix from Luis Chamberlain:
 "Only one fix for sysctl"

* tag 'sysctl-fixes-5.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux:
  mm: sysctl: fix missing numa_stat when !CONFIG_HUGETLB_PAGE

3 years agonull_blk: fix ida error handling in null_add_dev()
Dan Carpenter [Fri, 15 Jul 2022 08:12:14 +0000 (11:12 +0300)]
null_blk: fix ida error handling in null_add_dev()

There needs to be some error checking if ida_simple_get() fails.
Also call ida_free() if there are errors later.

Fixes: 94bc02e30fb8 ("nullb: use ida to manage index")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/YtEhXsr6vJeoiYhd@kili
Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoMerge branch 'rework/kthreads' into for-linus
Petr Mladek [Fri, 15 Jul 2022 14:43:42 +0000 (16:43 +0200)]
Merge branch 'rework/kthreads' into for-linus

3 years agonull_blk: cleanup null_init_tag_set
Ming Lei [Fri, 15 Jul 2022 14:28:47 +0000 (22:28 +0800)]
null_blk: cleanup null_init_tag_set

The passed 'nullb' can be NULL, so cause null ptr reference.

Fix the issue, meantime cleanup null_init_tag_set for avoiding to add
similar issue in future.

Meantime set BLK_MQ_F_NO_SCHED if g_no_sched is true in case of NULL
device, same with BLK_MQ_F_TAG_HCTX_SHARED.

Cc: Vincent Fu <vincent.fu@samsung.com>
Fixes: 37ae152c7a0d ("null_blk: add configfs variables for 2 options")
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20220715142847.188275-1-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoMerge tag 'cpufreq-arm-fixes-5.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel...
Rafael J. Wysocki [Fri, 15 Jul 2022 11:54:14 +0000 (13:54 +0200)]
Merge tag 'cpufreq-arm-fixes-5.19-rc7' of git://git./linux/kernel/git/vireshk/pm

Pull a cpufreq ARM fix for 5.19-rc7 from Viresh Kumar:

- mediatek: Handle sram regulator probe deferral

* tag 'cpufreq-arm-fixes-5.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm:
  cpufreq: mediatek: Handle sram regulator probe deferral

3 years agoKVM: emulate: do not adjust size of fastop and setcc subroutines
Paolo Bonzini [Fri, 15 Jul 2022 11:34:55 +0000 (07:34 -0400)]
KVM: emulate: do not adjust size of fastop and setcc subroutines

Instead of doing complicated calculations to find the size of the subroutines
(which are even more complicated because they need to be stringified into
an asm statement), just hardcode to 16.

It is less dense for a few combinations of IBT/SLS/retbleed, but it has
the advantage of being really simple.

Cc: stable@vger.kernel.org # 5.15.x: 84e7051c0bc1: x86/kvm: fix FASTOP_SIZE when return thunks are enabled
Cc: stable@vger.kernel.org
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>