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Revision eeeefd41843218c55a8782a6920f044d9bf6207a authored by Christoph Hellwig on 05 February 2017, 17:10:35 UTC, committed by Jens Axboe on 06 February 2017, 16:34:46 UTC 
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>
1 parent c14024d
Raw File
big_key-type.h 
/* Big capacity key type.
 *
 * Copyright (C) 2013 Red Hat, Inc. All Rights Reserved.
 * Written by David Howells (dhowells@redhat.com)
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version
 * 2 of the License, or (at your option) any later version.
 */

#ifndef _KEYS_BIG_KEY_TYPE_H
#define _KEYS_BIG_KEY_TYPE_H

#include <linux/key-type.h>

extern struct key_type key_type_big_key;

extern int big_key_preparse(struct key_preparsed_payload *prep);
extern void big_key_free_preparse(struct key_preparsed_payload *prep);
extern void big_key_revoke(struct key *key);
extern void big_key_destroy(struct key *key);
extern void big_key_describe(const struct key *big_key, struct seq_file *m);
extern long big_key_read(const struct key *key, char __user *buffer, size_t buflen);

#endif /* _KEYS_BIG_KEY_TYPE_H */
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