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Fix several btrfs driver error messages

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Several of the error messages were wrong, but not one of them was helpful, so this fixes them to include the important information (the actual error), and a correct description of which operation failed.

Docker-DCO-1.1-Signed-off-by: Andrew Page <admwiggin@gmail.com> (github: tianon)
This commit is contained in:
Tianon Gravi
2014-02-03 09:12:18 -07:00
parent a446b34719
commit f7f8e3c2b3
1 changed files with 3 additions and 3 deletions
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graphdriver/btrfs/btrfs.go
+3 -3
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@@ -99,7 +99,7 @@ func subvolCreate(path, name string) error {
_, _, errno := syscall.Syscall(syscall.SYS_IOCTL, getDirFd(dir), C.BTRFS_IOC_SUBVOL_CREATE,
uintptr(unsafe.Pointer(&args)))
if errno != 0 {
return fmt.Errorf("Can't create subvolume")
return fmt.Errorf("Failed to create btrfs subvolume: %v", errno.Error())
}
return nil
}
@@ -126,7 +126,7 @@ func subvolSnapshot(src, dest, name string) error {
_, _, errno := syscall.Syscall(syscall.SYS_IOCTL, getDirFd(destDir), C.BTRFS_IOC_SNAP_CREATE_V2,
uintptr(unsafe.Pointer(&args)))
if errno != 0 {
return fmt.Errorf("Can't create subvolume")
return fmt.Errorf("Failed to create btrfs snapshot: %v", errno.Error())
}
return nil
}
@@ -146,7 +146,7 @@ func subvolDelete(path, name string) error {
_, _, errno := syscall.Syscall(syscall.SYS_IOCTL, getDirFd(dir), C.BTRFS_IOC_SNAP_DESTROY,
uintptr(unsafe.Pointer(&args)))
if errno != 0 {
return fmt.Errorf("Can't create subvolume")
return fmt.Errorf("Failed to destroy btrfs snapshot: %v", errno.Error())
}
return nil
}