Commit fa4320ce authored by Chao Yu's avatar Chao Yu Committed by Jaegeuk Kim
Browse files

f2fs: move ioctl interface definitions to separated file 



Like other filesystem does, we introduce a new file f2fs.h in path of
include/uapi/linux/, and move f2fs-specified ioctl interface definitions
to that file, after then, in order to use those definitions, userspace
developer only need to include the new header file rather than
copy & paste definitions from fs/f2fs/f2fs.h.

Signed-off-by: default avatarChao Yu <yuchao0@huawei.com>
Signed-off-by: default avatarJaegeuk Kim <jaegeuk@kernel.org>
parent 7a6e59d7

MAINTAINERS

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@@ -6681,6 +6681,7 @@ F: Documentation/filesystems/f2fs.rst 
F:	fs/f2fs/

F:	include/linux/f2fs_fs.h

F:	include/trace/events/f2fs.h

F:	include/uapi/linux/f2fs.h









F71805F HARDWARE MONITORING DRIVER









M:	Jean Delvare <jdelvare@suse.com>
































fs/f2fs/f2fs.h



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−79






























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@@ -402,85 +402,6 @@ static inline bool __has_cursum_space(struct f2fs_journal *journal,







	return size <= MAX_SIT_JENTRIES(journal);









}



















/*









 * f2fs-specific ioctl commands









 */









#define F2FS_IOCTL_MAGIC		0xf5









#define F2FS_IOC_START_ATOMIC_WRITE	_IO(F2FS_IOCTL_MAGIC, 1)









#define F2FS_IOC_COMMIT_ATOMIC_WRITE	_IO(F2FS_IOCTL_MAGIC, 2)









#define F2FS_IOC_START_VOLATILE_WRITE	_IO(F2FS_IOCTL_MAGIC, 3)









#define F2FS_IOC_RELEASE_VOLATILE_WRITE	_IO(F2FS_IOCTL_MAGIC, 4)









#define F2FS_IOC_ABORT_VOLATILE_WRITE	_IO(F2FS_IOCTL_MAGIC, 5)









#define F2FS_IOC_GARBAGE_COLLECT	_IOW(F2FS_IOCTL_MAGIC, 6, __u32)









#define F2FS_IOC_WRITE_CHECKPOINT	_IO(F2FS_IOCTL_MAGIC, 7)









#define F2FS_IOC_DEFRAGMENT		_IOWR(F2FS_IOCTL_MAGIC, 8,	\









						struct f2fs_defragment)









#define F2FS_IOC_MOVE_RANGE		_IOWR(F2FS_IOCTL_MAGIC, 9,	\









						struct f2fs_move_range)









#define F2FS_IOC_FLUSH_DEVICE		_IOW(F2FS_IOCTL_MAGIC, 10,	\









						struct f2fs_flush_device)









#define F2FS_IOC_GARBAGE_COLLECT_RANGE	_IOW(F2FS_IOCTL_MAGIC, 11,	\









						struct f2fs_gc_range)









#define F2FS_IOC_GET_FEATURES		_IOR(F2FS_IOCTL_MAGIC, 12, __u32)









#define F2FS_IOC_SET_PIN_FILE		_IOW(F2FS_IOCTL_MAGIC, 13, __u32)









#define F2FS_IOC_GET_PIN_FILE		_IOR(F2FS_IOCTL_MAGIC, 14, __u32)









#define F2FS_IOC_PRECACHE_EXTENTS	_IO(F2FS_IOCTL_MAGIC, 15)









#define F2FS_IOC_RESIZE_FS		_IOW(F2FS_IOCTL_MAGIC, 16, __u64)









#define F2FS_IOC_GET_COMPRESS_BLOCKS	_IOR(F2FS_IOCTL_MAGIC, 17, __u64)









#define F2FS_IOC_RELEASE_COMPRESS_BLOCKS				\









					_IOR(F2FS_IOCTL_MAGIC, 18, __u64)









#define F2FS_IOC_RESERVE_COMPRESS_BLOCKS				\









					_IOR(F2FS_IOCTL_MAGIC, 19, __u64)









#define F2FS_IOC_SEC_TRIM_FILE		_IOW(F2FS_IOCTL_MAGIC, 20,	\









						struct f2fs_sectrim_range)



















/*









 * should be same as XFS_IOC_GOINGDOWN.









 * Flags for going down operation used by FS_IOC_GOINGDOWN









 */









#define F2FS_IOC_SHUTDOWN	_IOR('X', 125, __u32)	/* Shutdown */









#define F2FS_GOING_DOWN_FULLSYNC	0x0	/* going down with full sync */









#define F2FS_GOING_DOWN_METASYNC	0x1	/* going down with metadata */









#define F2FS_GOING_DOWN_NOSYNC		0x2	/* going down */









#define F2FS_GOING_DOWN_METAFLUSH	0x3	/* going down with meta flush */









#define F2FS_GOING_DOWN_NEED_FSCK	0x4	/* going down to trigger fsck */



















/*









 * Flags used by F2FS_IOC_SEC_TRIM_FILE









 */









#define F2FS_TRIM_FILE_DISCARD		0x1	/* send discard command */









#define F2FS_TRIM_FILE_ZEROOUT		0x2	/* zero out */









#define F2FS_TRIM_FILE_MASK		0x3



















struct f2fs_gc_range {









	u32 sync;









	u64 start;









	u64 len;









};



















struct f2fs_defragment {









	u64 start;









	u64 len;









};



















struct f2fs_move_range {









	u32 dst_fd;		/* destination fd */









	u64 pos_in;		/* start position in src_fd */









	u64 pos_out;		/* start position in dst_fd */









	u64 len;		/* size to move */









};



















struct f2fs_flush_device {









	u32 dev_num;		/* device number to flush */









	u32 segments;		/* # of segments to flush */









};



















struct f2fs_sectrim_range {









	u64 start;









	u64 len;









	u64 flags;









};



















/* for inline stuff */









#define DEF_INLINE_RESERVED_SIZE	1









static inline int get_extra_isize(struct inode *inode);
































fs/f2fs/file.c



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@@ -31,6 +31,7 @@







#include "gc.h"









#include "trace.h"









#include <trace/events/f2fs.h>









#include <uapi/linux/f2fs.h>



















static vm_fault_t f2fs_filemap_fault(struct vm_fault *vmf)









{
































include/trace/events/f2fs.h



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@@ -6,6 +6,7 @@







#define _TRACE_F2FS_H



















#include <linux/tracepoint.h>









#include <uapi/linux/f2fs.h>



















#define show_dev(dev)		MAJOR(dev), MINOR(dev)









#define show_dev_ino(entry)	show_dev(entry->dev), (unsigned long)entry->ino
































include/uapi/linux/f2fs.h
0 → 100644



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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */



















#ifndef _UAPI_LINUX_F2FS_H









#define _UAPI_LINUX_F2FS_H









#include <linux/types.h>









#include <linux/ioctl.h>



















/*









 * f2fs-specific ioctl commands









 */









#define F2FS_IOCTL_MAGIC		0xf5









#define F2FS_IOC_START_ATOMIC_WRITE	_IO(F2FS_IOCTL_MAGIC, 1)









#define F2FS_IOC_COMMIT_ATOMIC_WRITE	_IO(F2FS_IOCTL_MAGIC, 2)









#define F2FS_IOC_START_VOLATILE_WRITE	_IO(F2FS_IOCTL_MAGIC, 3)









#define F2FS_IOC_RELEASE_VOLATILE_WRITE	_IO(F2FS_IOCTL_MAGIC, 4)









#define F2FS_IOC_ABORT_VOLATILE_WRITE	_IO(F2FS_IOCTL_MAGIC, 5)









#define F2FS_IOC_GARBAGE_COLLECT	_IOW(F2FS_IOCTL_MAGIC, 6, __u32)









#define F2FS_IOC_WRITE_CHECKPOINT	_IO(F2FS_IOCTL_MAGIC, 7)









#define F2FS_IOC_DEFRAGMENT		_IOWR(F2FS_IOCTL_MAGIC, 8,	\









						struct f2fs_defragment)









#define F2FS_IOC_MOVE_RANGE		_IOWR(F2FS_IOCTL_MAGIC, 9,	\









						struct f2fs_move_range)









#define F2FS_IOC_FLUSH_DEVICE		_IOW(F2FS_IOCTL_MAGIC, 10,	\









						struct f2fs_flush_device)









#define F2FS_IOC_GARBAGE_COLLECT_RANGE	_IOW(F2FS_IOCTL_MAGIC, 11,	\









						struct f2fs_gc_range)









#define F2FS_IOC_GET_FEATURES		_IOR(F2FS_IOCTL_MAGIC, 12, __u32)









#define F2FS_IOC_SET_PIN_FILE		_IOW(F2FS_IOCTL_MAGIC, 13, __u32)









#define F2FS_IOC_GET_PIN_FILE		_IOR(F2FS_IOCTL_MAGIC, 14, __u32)









#define F2FS_IOC_PRECACHE_EXTENTS	_IO(F2FS_IOCTL_MAGIC, 15)









#define F2FS_IOC_RESIZE_FS		_IOW(F2FS_IOCTL_MAGIC, 16, __u64)









#define F2FS_IOC_GET_COMPRESS_BLOCKS	_IOR(F2FS_IOCTL_MAGIC, 17, __u64)









#define F2FS_IOC_RELEASE_COMPRESS_BLOCKS				\









					_IOR(F2FS_IOCTL_MAGIC, 18, __u64)









#define F2FS_IOC_RESERVE_COMPRESS_BLOCKS				\









					_IOR(F2FS_IOCTL_MAGIC, 19, __u64)









#define F2FS_IOC_SEC_TRIM_FILE		_IOW(F2FS_IOCTL_MAGIC, 20,	\









						struct f2fs_sectrim_range)



















/*









 * should be same as XFS_IOC_GOINGDOWN.









 * Flags for going down operation used by FS_IOC_GOINGDOWN









 */









#define F2FS_IOC_SHUTDOWN	_IOR('X', 125, __u32)	/* Shutdown */









#define F2FS_GOING_DOWN_FULLSYNC	0x0	/* going down with full sync */









#define F2FS_GOING_DOWN_METASYNC	0x1	/* going down with metadata */









#define F2FS_GOING_DOWN_NOSYNC		0x2	/* going down */









#define F2FS_GOING_DOWN_METAFLUSH	0x3	/* going down with meta flush */









#define F2FS_GOING_DOWN_NEED_FSCK	0x4	/* going down to trigger fsck */



















/*









 * Flags used by F2FS_IOC_SEC_TRIM_FILE









 */









#define F2FS_TRIM_FILE_DISCARD		0x1	/* send discard command */









#define F2FS_TRIM_FILE_ZEROOUT		0x2	/* zero out */









#define F2FS_TRIM_FILE_MASK		0x3



















struct f2fs_gc_range {









	__u32 sync;









	__u64 start;









	__u64 len;









};



















struct f2fs_defragment {









	__u64 start;









	__u64 len;









};



















struct f2fs_move_range {









	__u32 dst_fd;		/* destination fd */









	__u64 pos_in;		/* start position in src_fd */









	__u64 pos_out;		/* start position in dst_fd */









	__u64 len;		/* size to move */









};



















struct f2fs_flush_device {









	__u32 dev_num;		/* device number to flush */









	__u32 segments;		/* # of segments to flush */









};



















struct f2fs_sectrim_range {









	__u64 start;









	__u64 len;









	__u64 flags;









};



















#endif /* _UAPI_LINUX_F2FS_H */