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| author | Namjae Jeon <namjae.jeon@samsung.com> | 2012-07-08 07:05:08 +0400 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2012-07-20 11:59:00 +0400 |
| commit | b81478d82e389dd0961760f5ff6f56b50d29db6d (patch) | |
| tree | 28729e5443db79591b693dea481b23d5511f37d1 /include/scsi | |
| parent | 365a7150094114a0f8ef0b6164e6b04b519039e8 (diff) | |
| download | linux-b81478d82e389dd0961760f5ff6f56b50d29db6d.tar.xz | |
[SCSI] set to WCE if usb cache quirk is present.
Make use of USB quirk method to identify such HDD while reading
the cache status in sd_probe(). If cache quirk is present for
the HDD, lets assume that cache is enabled and make WCE bit
equal to 1.
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Pankaj Kumar <pankaj.km@samsung.com>
Signed-off-by: Amit Sahrawat <a.sahrawat@samsung.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'include/scsi')
| -rw-r--r-- | include/scsi/scsi_device.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h index bd1a14d89009..7539f52a33c9 100644 --- a/include/scsi/scsi_device.h +++ b/include/scsi/scsi_device.h @@ -154,6 +154,7 @@ struct scsi_device { unsigned no_read_capacity_16:1; /* Avoid READ_CAPACITY_16 cmds */ unsigned try_rc_10_first:1; /* Try READ_CAPACACITY_10 first */ unsigned is_visible:1; /* is the device visible in sysfs */ + unsigned wce_default_on:1; /* Cache is ON by default */ DECLARE_BITMAP(supported_events, SDEV_EVT_MAXBITS); /* supported events */ struct list_head event_list; /* asserted events */ |