debian/patches/pve/0040-enable-cache-unsafe-for-vma-extract_content-and-qmp_.patch

   1 From 5a587bc1cfc30faa8506b5c2925b767b4c3d7b56 Mon Sep 17 00:00:00 2001
   2 From: Wolfgang Bumiller <w.bumiller@proxmox.com>
   3 Date: Mon, 1 Aug 2016 10:52:46 +0200
   4 Subject: [PATCH 40/47] enable cache=unsafe for vma extract_content and
   5  qmp_savevm_start
   6
   7 We don't send any flush here, so we need to open with cache=unsafe.
   8
   9 Signed-off-by: Alexandre Derumier <aderumier@odiso.com>
  10 ---
  11  savevm-async.c | 2 +-
  12  vma.c          | 2 +-
  13  2 files changed, 2 insertions(+), 2 deletions(-)
  14
  15 diff --git a/savevm-async.c b/savevm-async.c
  16 index 6ac03af..46c1be7 100644
  17 --- a/savevm-async.c
  18 +++ b/savevm-async.c
  19 @@ -253,7 +253,7 @@ void qmp_savevm_start(bool has_statefile, const char *statefile, Error **errp)
  20  {
  21      Error *local_err = NULL;
  22
  23 -    int bdrv_oflags = BDRV_O_RDWR | BDRV_O_RESIZE;
  24 +    int bdrv_oflags = BDRV_O_RDWR | BDRV_O_RESIZE | BDRV_O_NO_FLUSH;
  25      int ret;
  26
  27      if (snap_state.state != SAVE_STATE_DONE) {
  28 diff --git a/vma.c b/vma.c
  29 index aafdc2d..4f55799 100644
  30 --- a/vma.c
  31 +++ b/vma.c
  32 @@ -281,7 +281,7 @@ static int extract_content(int argc, char **argv)
  33          } else if (di) {
  34              char *devfn = NULL;
  35              const char *format = NULL;
  36 -            int flags = BDRV_O_RDWR;
  37 +            int flags = BDRV_O_RDWR | BDRV_O_NO_FLUSH;
  38              bool write_zero = true;
  39
  40              if (readmap) {
  41 --
  42 2.1.4
  43