On Tuesday 30 October 2007, Dongjun Shin wrote: > 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). > This make me curious, why would t13 want to invent a new command when there is already the erase command from CFA? It's not exactly the same, but close enough that the proposed BIO_HINT_RELEASE should probably be mapped to CFA_ERASE (0xc0) on drives that support it: http://t13.org/Documents/UploadedDocuments/technical/d97116r1.pdf Arnd <>< - 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
