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Filename Latest commit message Latest commit date
Nikolay Borisov a87911c26a btrfs: unlock extents in btrfs_zero_range in case of quota reservation errors
commit 4f6a49de64fd1b1dba5229c02047376da7cf24fd upstream.

If btrfs_qgroup_reserve_data returns an error (i.e quota limit reached)
the handling logic directly goes to the 'out' label without first
unlocking the extent range between lockstart, lockend. This results in
deadlocks as other processes try to lock the same extent.

Fixes: a7f8b1c2ac21 ("btrfs: file: reserve qgroup space after the hole punch range is locked")
CC: stable@vger.kernel.org # 5.10+
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-03-09 11:09:37 +01:00
arch Xen/gnttab: handle p2m update errors on a per-slot basis 2021-03-07 12:20:49 +01:00
block blk-settings: align max_sectors on "logical_block_size" boundary 2021-03-04 10:26:40 +01:00
certs certs: Fix blacklist flag type confusion 2021-03-04 10:26:29 +01:00
crypto crypto: tcrypt - avoid signed overflow in byte count 2021-03-07 12:20:46 +01:00
Documentation sysfs: Add sysfs_emit and sysfs_emit_at to format sysfs output 2021-03-07 12:20:48 +01:00
drivers tpm, tpm_tis: Decorate tpm_get_timeouts() with request_locality() 2021-03-09 11:09:36 +01:00
fs btrfs: unlock extents in btrfs_zero_range in case of quota reservation errors 2021-03-09 11:09:37 +01:00
include swap: fix swapfile read/write offset 2021-03-07 12:20:49 +01:00
init
ipc
kernel sched/features: Fix hrtick reprogramming 2021-03-07 12:20:47 +01:00
lib
LICENSES
mm swap: fix swapfile read/write offset 2021-03-07 12:20:49 +01:00
net Bluetooth: Fix null pointer dereference in amp_read_loc_assoc_final_data 2021-03-07 12:20:45 +01:00
samples
scripts
security smackfs: restrict bytes count in smackfs write functions 2021-03-07 12:20:42 +01:00
sound ALSA: hda/realtek: Apply dual codec quirks for MSI Godlike X570 board 2021-03-07 12:20:49 +01:00
tools perf test: Fix unaligned access in sample parsing test 2021-03-04 10:26:35 +01:00
usr
virt
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.cocciconfig
.get_maintainer.ignore
.gitattributes
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Makefile Linux 5.4.103 2021-03-07 12:20:50 +01:00
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.