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Boris Burkov 585c5732ca btrfs: qgroup: convert PREALLOC to PERTRANS after record_root_in_trans 
commit 211de93367 upstream.

The transaction is only able to free PERTRANS reservations for a root
once that root has been recorded with the TRANS tag on the roots radix
tree. Therefore, until we are sure that this root will get tagged, it
isn't safe to convert. Generally, this is not an issue as *some*
transaction will likely tag the root before long and this reservation
will get freed in that transaction, but technically it could stick
around until unmount and result in a warning about leaked metadata
reservation space.

This path is most exercised by running the generic/269 fstest with
CONFIG_BTRFS_DEBUG.

Fixes: a649684967 ("btrfs: fix start transaction qgroup rsv double free")
CC: stable@vger.kernel.org # 6.6+
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Boris Burkov <boris@bur.io>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 		2024-04-17 11:19:33 +02:00
Documentation net: ena: Move XDP code to its new files 2024-04-17 11:19:32 +02:00
LICENSES LICENSES: Add the copyleft-next-0.3.1 license 2022-11-08 15:44:01 +01:00
arch arm64: dts: imx8-ss-conn: fix usdhc wrong lpcg clock order 2024-04-17 11:19:27 +02:00
block block: fix q->blkg_list corruption during disk rebind 2024-04-17 11:19:28 +02:00
certs certs: Reference revocation list for all keyrings 2023-08-17 20:12:41 +00:00
crypto crypto: jitter - fix CRYPTO_JITTERENTROPY help text 2024-03-26 18:19:52 -04:00
drivers iommu/vt-d: Allocate local memory for page request queue 2024-04-17 11:19:33 +02:00
fs btrfs: qgroup: convert PREALLOC to PERTRANS after record_root_in_trans 2024-04-17 11:19:33 +02:00
include af_unix: Do not use atomic ops for unix_sk(sk)->inflight. 2024-04-17 11:19:32 +02:00
init init: open /initrd.image with O_LARGEFILE 2024-04-03 15:28:53 +02:00
io_uring io_uring: clear opcode specific data for an early failure 2024-04-13 13:07:39 +02:00
ipc Add x86 shadow stack support 2023-08-31 12:20:12 -07:00
kernel tracing: hide unused ftrace_event_id_fops 2024-04-17 11:19:33 +02:00
lib pci_iounmap(): Fix MMIO mapping leak 2024-04-03 15:28:17 +02:00
mm x86/mm/pat: fix VM_PAT handling in COW mappings 2024-04-10 16:36:03 +02:00
net af_unix: Fix garbage collector racing against connect() 2024-04-17 11:19:32 +02:00
rust rust: upgrade to Rust 1.73.0 2024-02-16 19:10:43 +01:00
samples work around gcc bugs with 'asm goto' with outputs 2024-02-23 09:24:47 +01:00
scripts gcc-plugins/stackleak: Avoid .head.text section 2024-04-13 13:07:40 +02:00
security selinux: avoid dereference of garbage after mount failure 2024-04-10 16:35:48 +02:00
sound ALSA: hda/realtek: Add quirks for some Clevo laptops 2024-04-13 13:07:40 +02:00
tools selftests: mptcp: use += operator to append strings 2024-04-17 11:19:33 +02:00
usr initramfs: Encode dependency on KBUILD_BUILD_TIMESTAMP 2023-06-06 17:54:49 +09:00
virt KVM: Always flush async #PF workqueue when vCPU is being destroyed 2024-04-03 15:28:18 +02:00
.clang-format iommu: Add for_each_group_device() 2023-05-23 08:15:51 +02:00
.cocciconfig
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.get_maintainer.ignore
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.gitattributes .gitattributes: set diff driver for Rust source code files 2023-05-31 17:48:25 +02:00
.gitignore kbuild: rpm-pkg: rename binkernel.spec to kernel.spec 2023-07-25 00:59:33 +09:00
.mailmap 20 hotfixes. 12 are cc:stable and the remainder address post-6.5 issues 2023-10-24 09:52:16 -10:00
.rustfmt.toml
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COPYING
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CREDITS USB: Remove Wireless USB and UWB documentation 2023-08-09 14:17:32 +02:00
Kbuild Kbuild updates for v6.1 2022-10-10 12:00:45 -07:00
Kconfig
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MAINTAINERS MAINTAINERS: add Catherine as xfs maintainer for 6.6.y 2024-02-16 19:10:43 +01:00
Makefile Linux 6.6.27 2024-04-13 13:07:41 +02:00
README
…

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.