clearlinux/docker
2
0
Fork 0
mirror of https://github.com/clearlinux/docker.git synced 2026-10-04 07:48:44 +00:00
Code Issues Packages Projects Releases Wiki Activity

devicemapper tool: Add support for pool resizing

Browse Source
This commit is contained in:
Alexander Larsson
2013-11-19 09:59:13 +01:00
parent 80aecc7014
commit a0224e61b4
4 changed files with 228 additions and 20 deletions
Download Patch File Download Diff File Expand all files Collapse all files
graphdriver/devmapper/devmapper_wrapper.go
+12
View File
@@ -239,6 +239,18 @@ func dmTaskAddTargetFct(task *CDmTask,
C.uint64_t(start), C.uint64_t(size), Cttype, Cparams))
}
func dmGetLoopbackBackingFile(fd uintptr) (uint64, uint64, syscall.Errno) {
var lo64 C.struct_loop_info64
_, _, err := syscall.Syscall(syscall.SYS_IOCTL, fd, C.LOOP_GET_STATUS64,
uintptr(unsafe.Pointer(&lo64)))
return uint64(lo64.lo_device), uint64(lo64.lo_inode), err
}
func dmLoopbackSetCapacity(fd uintptr) syscall.Errno {
_, _, err := syscall.Syscall(syscall.SYS_IOCTL, fd, C.LOOP_SET_CAPACITY, 0)
return err
}
func dmGetBlockSizeFct(fd uintptr) (int64, syscall.Errno) {
var size int64
_, _, err := syscall.Syscall(syscall.SYS_IOCTL, fd, C.BLKGETSIZE64,