Re: [PATCH 6/7] dlm: use FL_SLEEP to determine blocking vs non-blocking

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On Wed, 2023-08-23 at 17:33 -0400, Alexander Aring wrote:
> This patch uses the FL_SLEEP flag in struct file_lock to determine if
> the lock request is a blocking or non-blocking request. Before dlm was
> using IS_SETLKW() was being used which is not usable for lock requests
> coming from lockd when EXPORT_OP_SAFE_ASYNC_LOCK inside the export flags
> is set.
> 
> Signed-off-by: Alexander Aring <aahringo@xxxxxxxxxx>
> ---
>  fs/dlm/plock.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/fs/dlm/plock.c b/fs/dlm/plock.c
> index 0094fa4004cc..0c6ed5eeb840 100644
> --- a/fs/dlm/plock.c
> +++ b/fs/dlm/plock.c
> @@ -140,7 +140,7 @@ int dlm_posix_lock(dlm_lockspace_t *lockspace, u64 number, struct file *file,
>  	op->info.optype		= DLM_PLOCK_OP_LOCK;
>  	op->info.pid		= fl->fl_pid;
>  	op->info.ex		= (fl->fl_type == F_WRLCK);
> -	op->info.wait		= IS_SETLKW(cmd);
> +	op->info.wait		= !!(fl->fl_flags & FL_SLEEP);
>  	op->info.fsid		= ls->ls_global_id;
>  	op->info.number		= number;
>  	op->info.start		= fl->fl_start;

Not sure you really need the !!, but ok...

Reviewed-by: Jeff Layton <jlayton@xxxxxxxxxx>




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