linux/include/linux/falloc.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _FALLOC_H_
#define _FALLOC_H_

#include <uapi/linux/falloc.h>


/*
 * Space reservation ioctls and argument structure
 * are designed to be compatible with the legacy XFS ioctls.
 */
struct space_resv { … };

#define FS_IOC_RESVSP …
#define FS_IOC_UNRESVSP …
#define FS_IOC_RESVSP64 …
#define FS_IOC_UNRESVSP64 …
#define FS_IOC_ZERO_RANGE …

/*
 * Mask of all supported fallocate modes.  Only one can be set at a time.
 *
 * In addition to the mode bit, the mode argument can also encode flags.
 * FALLOC_FL_KEEP_SIZE is the only supported flag so far.
 */
#define FALLOC_FL_MODE_MASK …

/* on ia32 l_start is on a 32-bit boundary */
#if defined(CONFIG_X86_64)
struct space_resv_32 { … };

#define FS_IOC_RESVSP_32 …
#define FS_IOC_UNRESVSP_32 …
#define FS_IOC_RESVSP64_32 …
#define FS_IOC_UNRESVSP64_32 …
#define FS_IOC_ZERO_RANGE_32 …

#endif

#endif /* _FALLOC_H_ */