diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-08-05 21:42:21 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-08-05 21:42:21 -0700 |
| commit | 18351070b86d155713cf790b26af4f21b1fd0b29 (patch) | |
| tree | 66e98f59de072733af7ae65cebf135c37caab249 /drivers/scsi/sd.h | |
| parent | e63e03273b89f7248baa56cf242474f661e776e1 (diff) | |
Re-introduce "[SCSI] extend the last_sector_bug flag to cover more sectors"
This re-introduces commit 2b142900784c6e38c8d39fa57d5f95ef08e735d8,
which was reverted due to the regression it caused by commit
fca082c9f1e11ec07efa8d2f9f13688521253f36.
That regression was not root-caused by the original commit, it was just
uncovered by it, and the real fix was done by Alan Stern in commit
580da34847488b404218d1d7f53b156f245f5555 ("Fix USB storage hang on
command abort").
We can thus re-introduce the change that was confirmed by Alan Jenkins
to be still required by his odd card reader.
Cc: Alan Jenkins <alan-jenkins@tuffmail.co.uk>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/scsi/sd.h')
| -rw-r--r-- | drivers/scsi/sd.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/scsi/sd.h b/drivers/scsi/sd.h index 550b2f70a1f..95b9f06534d 100644 --- a/drivers/scsi/sd.h +++ b/drivers/scsi/sd.h @@ -31,6 +31,12 @@ */ #define SD_BUF_SIZE 512 +/* + * Number of sectors at the end of the device to avoid multi-sector + * accesses to in the case of last_sector_bug + */ +#define SD_LAST_BUGGY_SECTORS 8 + struct scsi_disk { struct scsi_driver *driver; /* always &sd_template */ struct scsi_device *device; |