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Anand Jain b7cb29e666 btrfs: update latest_dev when we create a sprout device
When we add a device to the seed filesystem (sprouting) it is a new
filesystem (and fsid) on the device added. Update the latest_dev so
that /proc/self/mounts shows the correct device.

Example:

  $ btrfstune -S1 /dev/vg/seed
  $ mount /dev/vg/seed /btrfs
  mount: /btrfs: WARNING: device write-protected, mounted read-only.

  $ cat /proc/self/mounts | grep btrfs
  /dev/mapper/vg-seed /btrfs btrfs ro,relatime,space_cache,subvolid=5,subvol=/ 0 0

  $ btrfs dev add -f /dev/vg/new /btrfs

Before:

  $ cat /proc/self/mounts | grep btrfs
  /dev/mapper/vg-seed /btrfs btrfs ro,relatime,space_cache,subvolid=5,subvol=/ 0 0

After:

  $ cat /proc/self/mounts | grep btrfs
  /dev/mapper/vg-new /btrfs btrfs ro,relatime,space_cache,subvolid=5,subvol=/ 0 0

Tested-by: Su Yue <l@damenly.su>
Signed-off-by: Anand Jain <anand.jain@oracle.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2021-10-26 19:08:00 +02:00
arch ARM updates for 5.15: 2021-10-25 10:28:52 -07:00
block block-5.15-2021-10-22 2021-10-22 17:42:13 -10:00
certs
crypto
Documentation Pin control fixes for the v5.15 series: 2021-10-25 09:47:18 -07:00
drivers spi: Fix tegra20 build with CONFIG_PM=n once again 2021-10-25 10:46:41 -07:00
fs btrfs: update latest_dev when we create a sprout device 2021-10-26 19:08:00 +02:00
include ACPI fixes for 5.15-rc7 2021-10-22 09:08:08 -10:00
init bootconfig: init: Fix memblock leak in xbc_make_cmdline() 2021-10-10 22:27:40 -04:00
ipc
kernel - Reset clang's Shadow Call Stack on hotplug to prevent it from overflowing 2021-10-24 07:04:21 -10:00
lib linux-kselftest-kunit-fixes-5.15-rc6 2021-10-11 17:25:08 -07:00
LICENSES
mm secretmem: Prevent secretmem_users from wrapping to zero 2021-10-25 11:27:31 -07:00
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf 2021-10-21 12:32:41 +01:00
samples samples/bpf: Relicense bpf_insn.h as GPL-2.0-only OR BSD-2-Clause 2021-09-29 16:03:55 +02:00
scripts Tracing fixes for 5.15: 2021-10-16 10:51:41 -07:00
security Merge branch 'ucount-fixes-for-v5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2021-10-21 17:27:17 -10:00
sound ALSA: usb-audio: Fix microphone sound on Jieli webcam. 2021-10-19 08:07:01 +02:00
tools Networking fixes for 5.15-rc7, including fixes from netfilter, and can. 2021-10-21 15:36:50 -10:00
usr
virt
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap mailmap: add Andrej Shadura 2021-10-18 20:22:03 -10:00
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS MAINTAINERS: Add Dave Hansen to the x86 maintainer team 2021-10-21 13:55:42 +02:00
Makefile Linux 5.15-rc7 2021-10-25 11:30:31 -07:00
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.