There is no memory re-allocation for handle_ops_on_dev_replace(), thus
we don't need to pass a btrfs_io_context pointer.
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

There are quite some div64 calls inside btrfs_map_block() and its
variants.

Such calls are for @stripe_nr, where @stripe_nr is the number of
stripes before our logical bytenr inside a chunk.

However we can eliminate such div64 calls by just reducing the width of
@stripe_nr from 64 to 32.

This can be done because our chunk size limit is already 10G, with fixed
stripe length 64K.
Thus a U32 is definitely enough to contain the number of stripes.

With such width reduction, we can get rid of slower div64, and extra
warning for certain 32bit arch.

This patch would do:

- Add a new tree-checker chunk validation on chunk length
  Make sure no chunk can reach 256G, which can also act as a bitflip
  checker.

- Reduce the width from u64 to u32 for @stripe_nr variables

- Replace unnecessary div64 calls with regular modulo and division
  32bit division and modulo are much faster than 64bit operations, and
  we are finally free of the div64 fear at least in those involved
  functions.
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

Currently btrfs doesn't support stripe lengths other than 64KiB.
This is already set in the tree-checker.

There is really no meaning to record that fixed value in map_lookup for
now, and can all be replaced with BTRFS_STRIPE_LEN.

Furthermore we can use the fix stripe length to do the following
optimization:

- Use BTRFS_STRIPE_LEN_SHIFT to replace some 64bit division
  Now we only need to do a right shift.

  And the value of BTRFS_STRIPE_LEN itself is already too large for bit
  shift, thus if we accidentally use BTRFS_STRIPE_LEN to do bit shift,
  a compiler warning would be triggered.

  Thus this bit shift optimization would be safe.

- Use BTRFS_STRIPE_LEN_MASK to calculate the offset inside a stripe
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

Move the remaining code that deals with initializing the btree
inode into btrfs_init_btree_inode instead of splitting it between
that helpers and its only caller.
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

Function search_file_offset_in_bio() finds the file offset in the
file_offset_ret, and we use the return value to indicate if it is
successful, so use bool.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Anand Jain <anand.jain@oracle.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

The function btrfs_lookup_bio_sums() and a nested if statement declare
ret respectively as blk_status_t and int.

There is no need to store the return value of
search_file_offset_in_bio() to ret as this is a one-time call.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Anand Jain <anand.jain@oracle.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

Remove btrfs_csum_ptr() and fold it into it's only caller.
Reviewed-by: Anand Jain <anand.jain@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

These days all the operations that take locks in the raid56.c code are
run from user context (mostly workqueues).  Drop all the irqsafe locking
that is not required any more.
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

We were seeing weird errors when we were testing our btrfs backports
before we had the incorrect level check fix.  These errors appeared to
be improper error handling, but error injection testing uncovered that
the errors were a result of corruption that occurred from improper error
handling during snapshot delete.

With snapshot delete if we encounter any errors during walk_down or
walk_up we'll simply return an error, we won't abort the transaction.
This is problematic because we will be dropping references for nodes and
leaves along the way, and if we fail in the middle we will leave the
file system corrupt because we don't know where we left off in the drop.

Fix this by making sure we abort if we hit any errors during the walk
down or walk up operations, as we have no idea what operations could
have been left half done at this point.
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

We can get errors in walk_down_proc as we try and lookup extent info for
the snapshot dropping to act on.  However if we get an error we simply
return 1 which indicates we're done with walking down, which will lead
us to improperly continue with the snapshot drop with the incorrect
information.  Instead break if we get any error from walk_down_proc or
do_walk_down, and handle the case of ret == 1 by returning 0, otherwise
return the ret value that we have.
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

When we mount the file system we do something like this:

	while (1) {
		lookup fs roots;

		for (i = 0; i < num_roots; i++) {
			ret = btrfs_orphan_cleanup(roots[i]);
			if (ret)
				break;
			btrfs_put_root(roots[i]);
		}
	}

	for (; i < num_roots; i++)
		btrfs_put_root(roots[i]);

As you can see if we break in that inner loop we just go back to the
outer loop and lose the fact that we have to drop references on the
remaining roots we looked up.  Fix this by making an out label and
jumping to that on error so we don't leak a reference to the roots we
looked up.
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

We missed a couple of iput()s in the orphan cleanup failure paths, add
them so we don't get refcount errors. The iput needs to be done in the
check and not under a common label due to the way the code is
structured.
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

While investigating a problem with error injection I tripped over
curious behavior in the node/leaf splitting code.  If we get an EIO when
trying to read either the left or right leaf/node for splitting we'll
simply treat the node as if it were full and continue on.  The end
result of this isn't too bad, we simply end up allocating a block when
we may have pushed items into the adjacent blocks.

However this does essentially allow us to continue to modify a file
system that we've gotten errors on, either from a bad disk or csum
mismatch or other corruption.  This isn't particularly safe, so instead
handle these btrfs_read_node_slot() usages differently.  We allow you to
pass in any slot, the idea being that we save some code if the slot
number is outside of the range of the parent.  This means we treat all
errors the same, when in reality we only want to ignore -ENOENT.

Fix this by changing how we call btrfs_read_node_slot(), which is to
only call it for slots we know are valid.  This way if we get an error
back from reading the block we can properly pass the error up the chain.
This was validated with the error injection testing I was doing.
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

In btrfs_read_node_slot() we have a BUG_ON() that can be converted to an
ASSERT(), it's from an extent buffer and the level is validated at the
time it's read from disk.
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

While trying to track down a lost EIO problem I hit the following
assertion while doing my error injection testing

  BTRFS warning (device nvme1n1): transaction 1609 (with 180224 dirty metadata bytes) is not committed
  assertion failed: !found, in fs/btrfs/disk-io.c:4456
  ------------[ cut here ]------------
  kernel BUG at fs/btrfs/messages.h:169!
  invalid opcode: 0000 [#1] PREEMPT SMP NOPTI
  CPU: 0 PID: 1445 Comm: mount Tainted: G        W          6.2.0-rc5+ #3
  Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.1-2.fc37 04/01/2014
  RIP: 0010:btrfs_assertfail.constprop.0+0x18/0x1a
  RSP: 0018:ffffb95fc3b0bc68 EFLAGS: 00010286
  RAX: 0000000000000034 RBX: ffff9941c2ac2000 RCX: 0000000000000000
  RDX: 0000000000000001 RSI: ffffffffb6741f7d RDI: 00000000ffffffff
  RBP: ffff9941c2ac2428 R08: 0000000000000000 R09: ffffb95fc3b0bb38
  R10: 0000000000000003 R11: ffffffffb71438a8 R12: ffff9941c2ac2428
  R13: ffff9941c2ac2450 R14: ffff9941c2ac2450 R15: 000000000002c000
  FS:  00007fcea2d07800(0000) GS:ffff9941fbc00000(0000) knlGS:0000000000000000
  CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  CR2: 00007f00cc7c83a8 CR3: 000000010c686000 CR4: 0000000000350ef0
  Call Trace:
   <TASK>
   close_ctree+0x426/0x48f
   btrfs_mount_root.cold+0x7e/0xee
   ? legacy_parse_param+0x2b/0x220
   legacy_get_tree+0x2b/0x50
   vfs_get_tree+0x29/0xc0
   vfs_kern_mount.part.0+0x73/0xb0
   btrfs_mount+0x11d/0x3d0
   ? legacy_parse_param+0x2b/0x220
   legacy_get_tree+0x2b/0x50
   vfs_get_tree+0x29/0xc0
   path_mount+0x438/0xa40
   __x64_sys_mount+0xe9/0x130
   do_syscall_64+0x3e/0x90
   entry_SYSCALL_64_after_hwframe+0x72/0xdc

This is because the error injection did an EIO for the root inode lookup
and we simply jumped to closing the ctree.  However because we didn't
mark the file system as having an error we skipped all of the broken
transaction cleanup stuff, and thus triggered this ASSERT().  Fix this
by calling btrfs_handle_fs_error() in this case so we have the error set
on the file system.
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

Pull scheduler fix from Borislav Petkov:

 - Do not pull tasks to the local scheduling group if its average load
   is higher than the average system load

* tag 'sched_urgent_for_v6.3_rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched/fair: Fix imbalance overflow

Pull x86 fix from Borislav Petkov:

 - Drop __init annotation from two rtc functions which get called after
   boot is done, in order to prevent a crash

* tag 'x86_urgent_for_v6.3_rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/rtc: Remove __init for runtime functions

Pull powerpc fix from Michael Ellerman:

 - A fix for NUMA distance handling in the pseries SCM (pmem) driver.

   Thanks to Aneesh Kumar K.V.

* tag 'powerpc-6.3-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc/papr_scm: Update the NUMA distance table for the target node

Merge tag 'kbuild-fixes-v6.3-3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild fixes from Masahiro Yamada:

 - Drop debug info from purgatory objects again

 - Document that kernel.org provides prebuilt LLVM toolchains

 - Give up handling untracked files for source package builds

 - Avoid creating corrupted cpio when KBUILD_BUILD_TIMESTAMP is given
   with a pre-epoch data.

 - Change panic_show_mem() to a macro to handle variable-length argument

 - Compress tarballs on-the-fly again

* tag 'kbuild-fixes-v6.3-3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  kbuild: do not create intermediate *.tar for tar packages
  kbuild: do not create intermediate *.tar for source tarballs
  kbuild: merge cmd_archive_linux and cmd_archive_perf
  init/initramfs: Fix argument forwarding to panic() in panic_show_mem()
  initramfs: Check negative timestamp to prevent broken cpio archive
  kbuild: give up untracked files for source package builds
  Documentation/llvm: Add a note about prebuilt kernel.org toolchains
  purgatory: fix disabling debug info

Pull ksmbd server fix from Steve French:
 "smb311 server preauth integrity negotiate context parsing fix (check
  for out of bounds access)"

* tag '6.3-rc6-ksmbd-server-fix' of git://git.samba.org/ksmbd:
  ksmbd: avoid out of bounds access in decode_preauth_ctxt()

Commit 05e96e96 ("kbuild: use git-archive for source package
creation") split the compression as a separate step to factor out
the common build rules.

With the previous commit, we got back to the situation where source
tarballs are compressed on-the-fly.
There is no reason to keep the separate compression rules.

Generate the comressed tar packages directly.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>

Since commit 05e96e96 ("kbuild: use git-archive for source package
creation"), a source tarball is created in two steps; create *.tar file
then compress it. I split the compression as a separate rule because I
just thought 'git archive' supported only gzip.

For other compression algorithms, I could pipe the two commands:

  $ git archive HEAD | xz > linux.tar.xz

I read git-archive(1) carefully, and I realized GIT had provided a
more elegant way:

  $ git -c tar.tar.xz.command=xz archive -o linux.tar.xz HEAD

This commit uses 'tar.tar.*.command' configuration to specify the
compression backend so we can compress a source tarball on-the-fly.

GIT commit 767cf4579f0e ("archive: implement configurable tar filters")
is more than a decade old, so it should be available on almost all build
environments.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>

The two commands, cmd_archive_linux and cmd_archive_perf, are similar.
Merge them to make it easier to add more changes to the git-archive
command.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>

Forwarding variadic argument lists can't be done by passing a va_list
to a function with signature foo(...) (as panic() has). It ends up
interpreting the va_list itself as a single argument instead of
iterating it. printf() happily accepts it of course, leading to corrupt
output.

Convert panic_show_mem() to a macro to allow forwarding the arguments.
The function is trivial enough that it's easier than trying to introduce
a vpanic() variant.
Signed-off-by: Benjamin Gray <bgray@linux.ibm.com>
Reviewed-by: Andrew Donnellan <ajd@linux.ibm.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>

Similar to commit 4c9d410f ("initramfs: Check timestamp to prevent
broken cpio archive"), except asserts that the timestamp is
non-negative. This can happen when the KBUILD_BUILD_TIMESTAMP is a value
before UNIX epoch, which may be set when making reproducible builds that
don't want to look like they use a valid date.

While support for dates before 1970 might not be supported, this is more
about preventing undetected CPIO corruption. The printf's use a minimum
length format specifier, and will happily make the field longer than 8
characters if they need to.
Signed-off-by: Benjamin Gray <bgray@linux.ibm.com>
Reviewed-by: Andrew Donnellan <ajd@linux.ibm.com>
Tested-by: Andrew Donnellan <ajd@linux.ibm.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>

Pull cifs fix from Steve French:
 "Small client fix for better checking for smb311 negotiate context
  overflows, also marked for stable"

* tag '6.3-rc6-smb311-client-negcontext-fix' of git://git.samba.org/sfrench/cifs-2.6:
  cifs: fix negotiate context parsing

Pull UBI fixes from Richard Weinberger:

 - Fix failure to attach when vid_hdr offset equals the (sub)page size

 - Fix for a deadlock in UBI's worker thread

* tag 'ubifs-for-linus-6.3-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs:
  ubi: Fix failure attaching when vid_hdr offset equals to (sub)page size
  ubi: Fix deadlock caused by recursively holding work_sem

smb311_decode_neg_context() doesn't properly check against SMB packet
boundaries prior to accessing individual negotiate context entries. This
is due to the length check omitting the eight byte smb2_neg_context
header, as well as incorrect decrementing of len_of_ctxts.

Fixes: 5100d8a3 ("SMB311: Improve checking of negotiate security contexts")
Reported-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Paulo Alcantara (SUSE) <pc@manguebit.com>
Signed-off-by: David Disseldorp <ddiss@suse.de>
Signed-off-by: Steve French <stfrench@microsoft.com>

Pull i2c fixes from Wolfram Sang:
 "Just two driver fixes"

* tag 'i2c-for-6.3-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: ocores: generate stop condition after timeout in polling mode
  i2c: mchp-pci1xxxx: Update Timing registers

Pull SCSI fix from James Bottomley:
 "One small fix to SCSI Enclosure Services to fix a regression caused by
  another recent fix"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: ses: Handle enclosure with just a primary component gracefully

Pull block fix from Jens Axboe:
 "A single NVMe quirk entry addition"

* tag 'block-6.3-2023-04-14' of git://git.kernel.dk/linux:
  nvme-pci: add NVME_QUIRK_BOGUS_NID for T-FORCE Z330 SSD

Pull io_uring fix from Jens Axboe:
 "Just a small tweak to when task_work needs redirection, marked for
  stable as well"

* tag 'io_uring-6.3-2023-04-14' of git://git.kernel.dk/linux:
  io_uring: complete request via task work in case of DEFER_TASKRUN

Pull RISC-V fixes from Palmer Dabbelt:

 - A fix for a missing fence when generating the NOMMU sigreturn
   trampoline

 - A set of fixes for early DTB handling of reserved memory nodes

* tag 'riscv-for-linus-6.3-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
  riscv: No need to relocate the dtb as it lies in the fixmap region
  riscv: Do not set initial_boot_params to the linear address of the dtb
  riscv: Move early dtb mapping into the fixmap region
  riscv: add icache flush for nommu sigreturn trampoline

Pull ACPI fixes from Rafael Wysocki:
 "These add two ACPI-related quirks:

   - Add a quirk to force StorageD3Enable on AMD Picasso systems (Mario
     Limonciello)

   - Add an ACPI IRQ override quirk for ASUS ExpertBook B1502CBA (Paul
     Menzel)"

* tag 'acpi-6.3-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI: resource: Skip IRQ override on ASUS ExpertBook B1502CBA
  ACPI: x86: utils: Add Picasso to the list for forcing StorageD3Enable

Pull power management fix from Rafael Wysocki:
 "Make the amd-pstate cpufreq driver take all of the possible
  combinations of the 'old' and 'new' status values correctly while
  changing the operation mode via sysfs (Wyes Karny)"

* tag 'pm-6.3-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  amd-pstate: Fix amd_pstate mode switch

Pull thermal control fix from Rafael Wysocki:
 "Modify the Intel thermal throttling code to avoid updating unsupported
  status clearing mask bits which causes the kernel to complain about
  unchecked MSR access (Srinivas Pandruvada)"

* tag 'thermal-6.3-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  thermal: intel: Avoid updating unsupported THERM_STATUS_CLEAR mask bits

Pull sound fixes from Takashi Iwai:
 "A collection of small fixes.

  At this time, quite a few fixes for the old PCI drivers are found.
  Although they are not regression fixes, I took these as they are
  materials for stable kernels.

  In addition, a couple of regression fixes and another couple of
  HD-audio quirks are included"

* tag 'sound-6.3-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda/hdmi: disable KAE for Intel DG2
  ALSA: hda/realtek: Add quirks for Lenovo Z13/Z16 Gen2
  ALSA: hda: patch_realtek: add quirk for Asus N7601ZM
  ALSA: firewire-tascam: add missing unwind goto in snd_tscm_stream_start_duplex()
  ALSA: emu10k1: don't create old pass-through playback device on Audigy
  ALSA: emu10k1: fix capture interrupt handler unlinking
  ALSA: hda/sigmatel: fix S/PDIF out on Intel D*45* motherboards
  ALSA: hda/sigmatel: add pin overrides for Intel DP45SG motherboard
  ALSA: i2c/cs8427: fix iec958 mixer control deactivation

Pull rdma fixes from Jason Gunthorpe:
 "We had a fairly slow cycle on the rc side this time, here are the
  accumulated fixes, mostly in drivers:

   - irdma should not generate extra completions during flushing

   - Fix several memory leaks

   - Do not get confused in irdma's iwarp mode if IPv6 is present

   - Correct a link speed calculation in mlx5

   - Increase the EQ/WQ limits on erdma as they are too small for big
     applications

   - Use the right math for erdma's inline mtt feature

   - Make erdma probing more robust to boot time ordering differences

   - Fix a KMSAN crash in CMA due to uninitialized qkey"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
  RDMA/core: Fix GID entry ref leak when create_ah fails
  RDMA/cma: Allow UD qp_type to join multicast only
  RDMA/erdma: Defer probing if netdevice can not be found
  RDMA/erdma: Inline mtt entries into WQE if supported
  RDMA/erdma: Update default EQ depth to 4096 and max_send_wr to 8192
  RDMA/erdma: Fix some typos
  IB/mlx5: Add support for 400G_8X lane speed
  RDMA/irdma: Add ipv4 check to irdma_find_listener()
  RDMA/irdma: Increase iWARP CM default rexmit count
  RDMA/irdma: Fix memory leak of PBLE objects
  RDMA/irdma: Do not generate SW completions for NOPs

Merge a quirk to force StorageD3Enable on AMD Picasso systems (Mario
Limonciello).

* acpi-x86:
  ACPI: x86: utils: Add Picasso to the list for forcing StorageD3Enable