Re: [PATCH] ceph: abort osd requests on force umount

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On Fri, 11 May 2018 17:12:02 +0800, Yan, Zheng wrote:

> this avoid force umount getting stuck at ceph_osdc_sync()
> 
> Signed-off-by: "Yan, Zheng" <zyan@xxxxxxxxxx>
> ---
>  fs/ceph/super.c                 |  1 +
>  include/linux/ceph/osd_client.h |  5 ++++-
>  net/ceph/osd_client.c           | 43 ++++++++++++++++++++++++++++++++++++-----
>  3 files changed, 43 insertions(+), 6 deletions(-)
> 
> diff --git a/fs/ceph/super.c b/fs/ceph/super.c
> index 3c1155803444..40664e13cc0f 100644
> --- a/fs/ceph/super.c
> +++ b/fs/ceph/super.c
> @@ -793,6 +793,7 @@ static void ceph_umount_begin(struct super_block *sb)
>  	if (!fsc)
>  		return;
>  	fsc->mount_state = CEPH_MOUNT_SHUTDOWN;
> +	ceph_osdc_abort_requests(&fsc->client->osdc, -EIO);

Does the unmount need to guarantee that the failed requests won't be
processed by any OSDs, or is local cancellation fine here?

Cheers, David
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