Hello, cc'ing Matthew whom I forgot to cc in the first message. Matthew, the original message is... http://lkml.org/lkml/2008/11/22/260 Tejun Heo wrote: > Dongjun Shin who works for Samsung SSD dep asked me about libata TRIM > support and pointed me to the new DISCARD support David Woodhouse got > merged for 2.6.28. I took a look at the code and blk-layer > interface-wise we seemed to be ready both for filesystems and userland > (so that fsck or something which runs background can mark unused > blocks) but there doesn't seem to be any low level driver which > actually implements ->prepare_discard_fn or fs which sets the DISCARD > flag. Dongjun, the only doc I can find about ATA TRIM is the following one. http://t13.org/Documents/UploadedDocuments/docs2007/e07154r3-Data_Set_Management_Proposal_for_ATA-ACS2.pdf And AFAICS this hasn't made into ACS yet. Is this what you guys are gonna implement and Windows7 is gonna use? Thanks. -- tejun -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
