Mark Lord wrote:
Matthew Wilcox wrote:
Signed-off-by: Matthew Wilcox <willy@xxxxxxxxxxxxxxx>
---
drivers/ata/libata-scsi.c | 46
+++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 46 insertions(+), 0 deletions(-)
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index b9747fa..d4c8b8b 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
...
It works. :)
I'm using TRIM on a 120GB OCZ Vertex SSD here now,
..
I take that back now. The command is apparently failing,
but we don't log the failure, and nor do we stop attempting
to continue to use it on future TRIMs.
I dug deeper into the kernel side, when my own attempts in hdparm
all failed, both using SG_IO directly and using the BLKDISCARD ioctl().
The commands are simply rejected by the drive, with status=0x51, err=0x04.
Everything *looks* okay on the Linux side, so I'm guessing that the OCZ
drive uses a vendor-unique opcode or protocol for it. They do have it
in there for a windows tool, but no further info than that.
-ml
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