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Re: [Qemu-devel] [PATCH 2/5] virtiofsd: take lo->mutex around lo_add_dir
From: |
Dr. David Alan Gilbert |
Subject: |
Re: [Qemu-devel] [PATCH 2/5] virtiofsd: take lo->mutex around lo_add_dirp_mapping() |
Date: |
Thu, 1 Aug 2019 12:45:13 +0100 |
User-agent: |
Mutt/1.12.0 (2019-05-25) |
* Stefan Hajnoczi (address@hidden) wrote:
> The lo_add_dirp_mapping() function assumes lo->mutex is held, so we
> should acquire it.
>
> Signed-off-by: Stefan Hajnoczi <address@hidden>
Squashed into:
passthrough_ll: add dirp_map to hide lo_dirp pointers
> ---
> contrib/virtiofsd/passthrough_ll.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/contrib/virtiofsd/passthrough_ll.c
> b/contrib/virtiofsd/passthrough_ll.c
> index 417a104218..e1d729d26b 100644
> --- a/contrib/virtiofsd/passthrough_ll.c
> +++ b/contrib/virtiofsd/passthrough_ll.c
> @@ -1357,7 +1357,9 @@ static void lo_opendir(fuse_req_t req, fuse_ino_t ino,
> struct fuse_file_info *fi
>
> g_atomic_int_set(&d->refcount, 1); /* paired with lo_releasedir() */
>
> + pthread_mutex_lock(&lo->mutex);
> fh = lo_add_dirp_mapping(req, d);
> + pthread_mutex_unlock(&lo->mutex);
> if (fh == -1)
> goto out_err;
>
> --
> 2.21.0
>
--
Dr. David Alan Gilbert / address@hidden / Manchester, UK
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Dr. David Alan Gilbert <=