Files
android_kernel_xiaomi_sm8450/include/linux/falloc.h
Christoph Hellwig 837a6e7f5c fs: add generic UNRESVSP and ZERO_RANGE ioctl handlers
These use the same scheme as the pre-existing mapping of the XFS
RESVP ioctls to ->falloc, so just extend it and remove the XFS
implementation.

Signed-off-by: Christoph Hellwig <hch@lst.de>
[darrick: fix compile error on s390]
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2019-10-28 08:37:55 -07:00

36 lines
968 B
C

/* 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 {
__s16 l_type;
__s16 l_whence;
__s64 l_start;
__s64 l_len; /* len == 0 means until end of file */
__s32 l_sysid;
__u32 l_pid;
__s32 l_pad[4]; /* reserved area */
};
#define FS_IOC_RESVSP _IOW('X', 40, struct space_resv)
#define FS_IOC_UNRESVSP _IOW('X', 41, struct space_resv)
#define FS_IOC_RESVSP64 _IOW('X', 42, struct space_resv)
#define FS_IOC_UNRESVSP64 _IOW('X', 43, struct space_resv)
#define FS_IOC_ZERO_RANGE _IOW('X', 57, struct space_resv)
#define FALLOC_FL_SUPPORTED_MASK (FALLOC_FL_KEEP_SIZE | \
FALLOC_FL_PUNCH_HOLE | \
FALLOC_FL_COLLAPSE_RANGE | \
FALLOC_FL_ZERO_RANGE | \
FALLOC_FL_INSERT_RANGE | \
FALLOC_FL_UNSHARE_RANGE)
#endif /* _FALLOC_H_ */