blob: 7b1feaa4e6deda2cb7318f520c6fd7b2b59d679b (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
|
//go:build linux
package fuse
import (
"syscall"
)
// File allocation support for Linux
const (
// Fallocate flags
FALLOC_FL_KEEP_SIZE = 0x01
FALLOC_FL_PUNCH_HOLE = 0x02
FALLOC_FL_NO_HIDE_STALE = 0x04
FALLOC_FL_COLLAPSE_RANGE = 0x08
FALLOC_FL_ZERO_RANGE = 0x10
FALLOC_FL_INSERT_RANGE = 0x20
FALLOC_FL_UNSHARE_RANGE = 0x40
)
func fallocateFile(fd int, mode int, offset int64, length int64) error {
_, _, errno := syscall.Syscall6(syscall.SYS_FALLOCATE,
uintptr(fd),
uintptr(mode),
uintptr(offset),
uintptr(length),
0, 0)
if errno != 0 {
return errno
}
return nil
}
func isFallocateSupported() bool {
return true
}
|
