debian/patches/pve/0001-block-file-change-locking-default-to-off.patch

   1 From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
   2 From: Wolfgang Bumiller <w.bumiller@proxmox.com>
   3 Date: Wed, 29 Nov 2017 11:11:46 +0100
   4 Subject: [PATCH] block/file: change locking default to off
   5
   6 'auto' only checks whether the system generally supports OFD
   7 locks but not whether the storage the file resides on
   8 supports any locking, causing issues with NFS.
   9
  10 Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
  11 ---
  12  block/file-posix.c | 4 ++--
  13  1 file changed, 2 insertions(+), 2 deletions(-)
  14
  15 diff --git a/block/file-posix.c b/block/file-posix.c
  16 index 36ee89e940..4bff572d07 100644
  17 --- a/block/file-posix.c
  18 +++ b/block/file-posix.c
  19 @@ -405,7 +405,7 @@ static QemuOptsList raw_runtime_opts = {
  20          {
  21              .name = "locking",
  22              .type = QEMU_OPT_STRING,
  23 -            .help = "file locking mode (on/off/auto, default: auto)",
  24 +            .help = "file locking mode (on/off/auto, default: off)",
  25          },
  26          {
  27              .name = "pr-manager",
  28 @@ -481,7 +481,7 @@ static int raw_open_common(BlockDriverState *bs, QDict *options,
  29          s->use_lock = false;
  30          break;
  31      case ON_OFF_AUTO_AUTO:
  32 -        s->use_lock = qemu_has_ofd_lock();
  33 +        s->use_lock = false;
  34          break;
  35      default:
  36          abort();
  37 --
  38 2.11.0
  39