Hello, On Wed, Oct 22, 2008 at 8:44 PM, Raz <[EMAIL PROTECTED]> wrote: > I think XFS can do it . it has some un/reserve space ioctl. > 3521 /* > 3522 * XFS_IOC_RESVSP and XFS_IOC_UNRESVSP will reserve or unreserve > 3523 * file space. > 3524 * These calls do NOT zero the data space allocated to the file, > 3525 * nor do they change the file size. > 3526 * > 3527 * XFS_IOC_ALLOCSP and XFS_IOC_FREESP will allocate and free file > 3528 * space. > 3529 * These calls cause the new file data to be zeroed and the file > 3530 * size to be changed. > 3531 */ >
Yes, only XFS can deallocate space from the beginning of the file. I remember that the offset for the remaining data will remain identical. On the XFS mailing list some example code was posted about one year ago. Regards, -- Leon -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to [EMAIL PROTECTED] Please read the FAQ at http://kernelnewbies.org/FAQ
