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/*
 * Copyright (C) 2005-2006, Tobias Klauser <tklauser@distanz.ch>
 *
 * Licensed under the terms of the GNU General Public License; version 2 or later.
 */

#ifndef _INOTAIL_H
#define _INOTAIL_H

/* Number of items to tail. */
#define DEFAULT_N_LINES 10

/* tail modes */
enum { M_LINES, M_BYTES };

/* Every tailed file is represented as a file_struct */
struct file_struct {
	char *name;		/* Name of file (or '-' for stdin) */
	int fd;			/* File descriptor (or -1 if file is not open */
	off_t st_size;		/* File size */

	unsigned ignore;	/* Wheter to ignore the file in further processing */

	int i_watch;		/* Inotify watch associated with file_struct */
};

#ifdef DEBUG
# define dprintf(fmt, args...) fprintf(stderr, fmt, ##args)
#else
# define dprintf(fmt, args...)
#endif /* DEBUG */

#ifdef __GNUC__
# define unlikely(x) __builtin_expect(!!(x), 0)
#else
# define unlikely(x) (x)
#endif /* __GNUC__ */

#endif /* _INOTAIL_H */
amp;id=7a62a52333f8b5b82753d9529c11b3404bc5c183'>fs parentd2a61918401ea8db8a6f922e98e86a66b4930cec (diff)
block_dev: don't update file access position for sync direct IO
For sync direct IO, generic_file_direct_write/generic_file_read_iter will update file access position. Don't duplicate the update in .direct_IO. This cause my raid array can't assemble. Cc: Christoph Hellwig <hch@lst.de> Cc: Jens Axboe <axboe@fb.com> Signed-off-by: Shaohua Li <shli@fb.com> Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'fs')