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Re: [Qemu-block] [Qemu-devel] [PATCH] file-posix: Consolidate the lockin
From: |
Fam Zheng |
Subject: |
Re: [Qemu-block] [Qemu-devel] [PATCH] file-posix: Consolidate the locking error message |
Date: |
Fri, 1 Jun 2018 21:38:46 +0800 |
User-agent: |
Mutt/1.9.5 (2018-04-13) |
On Fri, 06/01 07:32, Eric Blake wrote:
> On 06/01/2018 04:18 AM, Fam Zheng wrote:
> > When hot-plugging a block device fails due to image locking errors,
> > users won't see the helpful 'Is another process using the image?'
> > message in QMP because currently the error hint is not carried over
> > there.
> >
> > Even though extending QMP to include hint is a conceivably easy task,
> > Libvirt will need some change to consume that data.
> >
> > Before that is fully sorted out, let's just do the easy fix by joining
> > the two lines.
> >
> > Signed-off-by: Fam Zheng <address@hidden>
> > ---
> > block/file-posix.c | 10 ++--
> > tests/qemu-iotests/153.out | 99 +++++++++++++-------------------------
> > tests/qemu-iotests/182.out | 3 +-
> > 3 files changed, 38 insertions(+), 74 deletions(-)
> >
> > diff --git a/block/file-posix.c b/block/file-posix.c
> > index 5a602cfe37..03776e13b1 100644
> > --- a/block/file-posix.c
> > +++ b/block/file-posix.c
> > @@ -699,11 +699,10 @@ static int raw_check_lock_bytes(BDRVRawState *s,
> > if (ret) {
> > char *perm_name = bdrv_perm_names(p);
> > error_setg(errp,
> > - "Failed to get \"%s\" lock",
> > + "Failed to get \"%s\" lock. "
> > + "Is another process using the image?",
>
> Except that this goes against the error message recommendations that Markus
> has tried to remind people of (in general, using a full-stop in error_setg()
> is frowned on). Markus, do you have any suggestions?
OK, now I remember what Markus suggested was a paranthesis around the second
sentence instead of following a full-stop. So it will look like:
"Failed to get shared \"%s\" lock (is another process using the image?)"
Is that an acceptable form?
Fam