diff options
Diffstat (limited to 'include/linux/falloc.h')
| -rw-r--r-- | include/linux/falloc.h | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/include/linux/falloc.h b/include/linux/falloc.h index 31591686ac2d..7c38c6b76b60 100644 --- a/include/linux/falloc.h +++ b/include/linux/falloc.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _FALLOC_H_ #define _FALLOC_H_ @@ -19,6 +20,44 @@ struct space_resv { }; #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) + +/* + * 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 (FALLOC_FL_ALLOCATE_RANGE | \ + FALLOC_FL_PUNCH_HOLE | \ + FALLOC_FL_COLLAPSE_RANGE | \ + FALLOC_FL_ZERO_RANGE | \ + FALLOC_FL_INSERT_RANGE | \ + FALLOC_FL_UNSHARE_RANGE | \ + FALLOC_FL_WRITE_ZEROES) + +/* 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_ */ |