All of lore.kernel.org
 help / color / mirror / Atom feed
From: David Sterba <dsterba@suse.com>
To: linux-btrfs@vger.kernel.org
Cc: David Sterba <dsterba@suse.com>
Subject: [PATCH 0/6] Support resize and device delete cancel ops
Date: Fri, 21 May 2021 14:06:24 +0200	[thread overview]
Message-ID: <cover.1621526221.git.dsterba@suse.com> (raw)

We don't have a nice interface to cancel the resize or device deletion
from a command. Since recently, both commands can be interrupted by a
signal, which also means Ctrl-C from terminal, but given the long
history of absence of the commands I think this is not yet well known.

Examples:

  $ btrfs fi resize -10G /mnt
  ...
  $ btrfs fi resize cancel /mnt

  $ btrfs device delete /dev/sdx /mnt
  ...
  $ btrfs device delete cancel /mnt

The cancel request returns once the resize/delete command finishes
processing of the currently relocated chunk. The btrfs-progs needs to be
updated as well to skip checks of the sysfs exclusive_operation file
added in 5.10 (raw ioctl would work).

David Sterba (6):
  btrfs: protect exclusive_operation by super_lock
  btrfs: add cancelable chunk relocation support
  btrfs: introduce try-lock semantics for exclusive op start
  btrfs: add wrapper for conditional start of exclusive operation
  btrfs: add cancelation to resize
  btrfs: add device delete cancel

 fs/btrfs/ctree.h      |  16 +++-
 fs/btrfs/disk-io.c    |   1 +
 fs/btrfs/ioctl.c      | 174 ++++++++++++++++++++++++++++++++----------
 fs/btrfs/relocation.c |  60 ++++++++++++++-
 4 files changed, 207 insertions(+), 44 deletions(-)

-- 
2.29.2


             reply	other threads:[~2021-05-21 12:09 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-21 12:06 David Sterba [this message]
2021-05-21 12:06 ` [PATCH 1/6] btrfs: protect exclusive_operation by super_lock David Sterba
2021-05-21 13:37   ` Josef Bacik
2021-05-21 12:06 ` [PATCH 2/6] btrfs: add cancelable chunk relocation support David Sterba
2021-05-21 13:21   ` Josef Bacik
2021-05-26 22:56     ` David Sterba
2021-06-16 13:54   ` Filipe Manana
2021-06-16 13:55     ` Filipe Manana
2021-06-16 15:53       ` David Sterba
2021-06-16 15:58       ` [PATCH v2] btrfs: add cancellable " David Sterba
2021-06-17  9:18         ` Filipe Manana
2021-05-21 12:06 ` [PATCH 3/6] btrfs: introduce try-lock semantics for exclusive op start David Sterba
2021-05-21 13:38   ` Josef Bacik
2021-05-27  7:43   ` Anand Jain
2021-05-28 12:30     ` David Sterba
2021-05-29 13:48       ` Anand Jain
2021-05-31 18:23         ` David Sterba
2021-05-21 12:06 ` [PATCH 4/6] btrfs: add wrapper for conditional start of exclusive operation David Sterba
2021-05-21 13:29   ` Josef Bacik
2021-05-21 16:45     ` David Sterba
2021-05-26 22:24       ` David Sterba
2021-05-21 12:06 ` [PATCH 5/6] btrfs: add cancelation to resize David Sterba
2021-05-21 13:38   ` Josef Bacik
2021-05-21 12:06 ` [PATCH 6/6] btrfs: add device delete cancel David Sterba
2021-05-21 13:38   ` Josef Bacik
2021-05-21 12:06 ` [PATCH 1/2] btrfs-progs: device remove: add support for cancel David Sterba
2021-05-21 12:06 ` [PATCH 2/2] btrfs-progs: fi resize: " David Sterba
2021-12-14 14:49 ` [PATCH 0/6] Support resize and device delete cancel ops Anand Jain
2021-12-15 15:13   ` David Sterba

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=cover.1621526221.git.dsterba@suse.com \
    --to=dsterba@suse.com \
    --cc=linux-btrfs@vger.kernel.org \
    --subject='Re: [PATCH 0/6] Support resize and device delete cancel ops' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.