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Filename Latest commit message Latest commit date
David Sterba 38c8255af7 btrfs: fix messages after changing compression level by remount 
commit 27942c9971cc405c60432eca9395e514a2ae9f5e upstream.

Reported by Forza on IRC that remounting with compression options does
not reflect the change in level, or at least it does not appear to do so
according to the messages:

  mount -o compress=zstd:1 /dev/sda /mnt
  mount -o remount,compress=zstd:15 /mnt

does not print the change to the level to syslog:

  [   41.366060] BTRFS info (device vda): use zstd compression, level 1
  [   41.368254] BTRFS info (device vda): disk space caching is enabled
  [   41.390429] BTRFS info (device vda): disk space caching is enabled

What really happens is that the message is lost but the level is actualy
changed.

There's another weird output, if compression is reset to 'no':

  [   45.413776] BTRFS info (device vda): use no compression, level 4

To fix that, save the previous compression level and print the message
in that case too and use separate message for 'no' compression.

CC: stable@vger.kernel.org # 4.19+
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-08-21 13:05:22 +02:00
arch genirq/affinity: Make affinity setting if activated opt-in 2020-08-21 13:05:20 +02:00
block iocost: Fix check condition of iocg abs_vdebt 2020-08-19 08:15:58 +02:00
certs
crypto
Documentation iio: improve IIO_CONCENTRATION channel type description 2020-08-19 08:16:07 +02:00
drivers PCI: qcom: Add support for tx term offset for rev 2.1.0 2020-08-21 13:05:20 +02:00
fs btrfs: fix messages after changing compression level by remount 2020-08-21 13:05:22 +02:00
include genirq/affinity: Make affinity setting if activated opt-in 2020-08-21 13:05:20 +02:00
init
ipc
kernel genirq/PM: Always unlock IRQ descriptor in rearm_wake_irq() 2020-08-21 13:05:20 +02:00
lib kobject: Avoid premature parent object freeing in kobject_cleanup() 2020-08-19 08:16:11 +02:00
LICENSES
mm mm/mmap.c: Add cond_resched() for exit_mmap() CPU stalls 2020-08-19 08:16:02 +02:00
net net: initialize fastreuse on inet_inherit_port 2020-08-19 08:16:23 +02:00
samples bpf: Fix fds_example SIGSEGV error 2020-08-19 08:16:03 +02:00
scripts
security Smack: prevent underflow in smk_set_cipso() 2020-08-19 08:16:16 +02:00
sound ALSA: usb-audio: add quirk for Pioneer DDJ-RB 2020-08-19 08:16:27 +02:00
tools tools, bpftool: Fix wrong return value in do_dump() 2020-08-19 08:16:19 +02:00
usr
virt
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COPYING
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Makefile Linux 5.4.59 2020-08-19 08:16:29 +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.