On 10/30/07, Greg Banks <gnb@xxxxxxx> wrote: > > BIO_HINT_RELEASE > The bio's block extent is no longer in use by the filesystem > and will not be read in the future. Any storage used to back > the extent may be released without any threat to filesystem > or data integrity. > I'd like to second the proposal, but it would be more useful to bring the hint down to the physical devices. There is an ongoing discussion about adding 'Trim' ATA command for notifying the drive about the deleted blocks. http://www.t13.org/Documents/UploadedDocuments/docs2007/e07154r3-Data_Set_Management_Proposal_for_ATA-ACS2.pdf This is especially useful for the storage device like Solid State Drive (SSD). Dongjun - To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
