mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-25 07:40:55 +07:00
dd46c78778
FALLOC_FL_INSERT_RANGE command is the opposite command of FALLOC_FL_COLLAPSE_RANGE that is needed for someone who wants to add some data in the middle of file. FALLOC_FL_INSERT_RANGE will create space for writing new data within a file after shifting extents to right as given length. This command also has same limitations as FALLOC_FL_COLLAPSE_RANGE in that operations need to be filesystem block boundary aligned and cannot cross the current EOF. Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com> Signed-off-by: Ashish Sangwan <a.sangwan@samsung.com> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
31 lines
719 B
C
31 lines
719 B
C
#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_RESVSP64 _IOW('X', 42, 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)
|
|
|
|
#endif /* _FALLOC_H_ */
|