mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-27 11:15:07 +07:00
77b9040195
Now that both native and compat ioctl syscalls are in the same file, a couple of simplifications can be made, bringing the implementation closer together: - do_vfs_ioctl(), ioctl_preallocate(), and compat_ioctl_preallocate() can become static, allowing the compiler to optimize better - slightly update the coding style for consistency between the functions. - rather than listing each command in two switch statements for the compat case, just call a single function that has all the common commands. As a side-effect, FS_IOC_RESVSP/FS_IOC_RESVSP64 are now available to x86 compat tasks, along with FS_IOC_RESVSP_32/FS_IOC_RESVSP64_32. This is harmless for i386 emulation, and can be considered a bugfix for x32 emulation, which never supported these in the past. Reviewed-by: Ben Hutchings <ben.hutchings@codethink.co.uk> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
57 lines
1.6 KiB
C
57 lines
1.6 KiB
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)
|
|
|
|
/* on ia32 l_start is on a 32-bit boundary */
|
|
#if defined(CONFIG_X86_64)
|
|
struct space_resv_32 {
|
|
__s16 l_type;
|
|
__s16 l_whence;
|
|
__s64 l_start __attribute__((packed));
|
|
/* len == 0 means until end of file */
|
|
__s64 l_len __attribute__((packed));
|
|
__s32 l_sysid;
|
|
__u32 l_pid;
|
|
__s32 l_pad[4]; /* reserve area */
|
|
};
|
|
|
|
#define FS_IOC_RESVSP_32 _IOW ('X', 40, struct space_resv_32)
|
|
#define FS_IOC_UNRESVSP_32 _IOW ('X', 41, struct space_resv_32)
|
|
#define FS_IOC_RESVSP64_32 _IOW ('X', 42, struct space_resv_32)
|
|
#define FS_IOC_UNRESVSP64_32 _IOW ('X', 43, struct space_resv_32)
|
|
#define FS_IOC_ZERO_RANGE_32 _IOW ('X', 57, struct space_resv_32)
|
|
|
|
#endif
|
|
|
|
#endif /* _FALLOC_H_ */
|