block: don't try Write Same from __blkdev_issue_zeroout

Write Same can return an error asynchronously if it turns out the
underlying SCSI device does not support Write Same, which makes a
proper fallback to other methods in __blkdev_issue_zeroout impossible.
Thus only issue a Write Same from blkdev_issue_zeroout an don't try it
at all from __blkdev_issue_zeroout as a non-invasive workaround.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reported-by: Junichi Nomura <j-nomura@ce.jp.nec.com>
Fixes: e73c23ff ("block: add async variant of blkdev_issue_zeroout")
Tested-by: Junichi Nomura <j-nomura@ce.jp.nec.com>
Signed-off-by: Jens Axboe <axboe@fb.com>

path: root/include/net/tc_act/tc_csum.h

#ifndef __NET_TC_CSUM_H
#define __NET_TC_CSUM_H

#include <linux/types.h>
#include <net/act_api.h>

struct tcf_csum {
	struct tc_action common;

	u32 update_flags;
};
#define to_tcf_csum(a) ((struct tcf_csum *)a)

#endif /* __NET_TC_CSUM_H */