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path: root/drivers/scsi/sd.c
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2005-11-05[SCSI] sd: Fix refcountingAlan Stern
Currently the driver takes a reference only for requests coming by way of the gendisk, not for requests coming by way of the struct device or struct scsi_device. Such requests can arrive in the rescan, flush, and shutdown pathways. The patch also makes the scsi_disk keep a reference to the underlying scsi_device, and it erases the scsi_device's pointer to the scsi_disk when the scsi_device is removed (since the pointer should no longer be used). This resolves Bugzilla entry #5237. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-10-28[SCSI] move the mid-layer printk's over to shost/starget/sdev_printkJames Bottomley
This should eliminate (at least in the mid layer) to make numeric assumptions about any of the enumeration variables. As a side effect, it will also make all the messages consistent and line us up nicely for the error logging strategy (if it ever shows itself again). Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-10-28[SCSI] avoid overflows in disk size calculationsJames Bottomley
Be more careful about doing the arithmetic in the non-LBD case. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-09-14[SCSI] scsi: sd, sr, st, and scsi_lib all fail to copy cmd_len to new cmdTimothy Thelin
This fixes an issue in scsi command initialization from a request where sd, sr, st, and scsi_lib all fail to copy the request's cmd_len to the scsi command's cmd_len field. Signed-off-by: Timothy Thelin <timothy.thelin@wdc.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-09-06Merge by hand (conflicts in sd.c)James Bottomley
2005-09-06[SCSI] sd: pause in sd_spinup_disk for slow USB devicesAlan Stern
This patch adds a delay tailored for USB flash devices that are slow to initialize their firmware. The symptom is a repeated Unit Attention with ASC=0x28 (Not Ready to Ready transition). The patch will wait for up to 5 seconds for such devices to become ready. Normal devices won't send the repeated Unit Attention sense key and hence won't trigger the patch. This fixes a problem with James Roberts-Thomson's USB device, and I've seen several reports of other devices exhibiting the same symptoms -- presumably they will be helped as well. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-08-28[SCSI] convert sd to scsi_execute_req (and update the scsi_execute_req API)James Bottomley
This one removes struct scsi_request entirely from sd. In the process, I noticed we have no callers of scsi_wait_req who don't immediately normalise the sense, so I updated the API to make it take a struct scsi_sense_hdr instead of simply a big sense buffer. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-08-28[SCSI] convert the remaining mid-layer pieces to scsi_execute_reqJames Bottomley
After this, we just have some drivers, all the ULDs and the SPI transport class using scsi_wait_req(). Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-07-14[SCSI] Redundant this_count check in sd_init_command()Chen, Kenneth W
I was going over the scsi I/O submit path, when sd_init_command construct the scsi command, this_count is already checked in the previous else if clause. Why does it need to check it again in the last else block? Patch to delete the spurious check. Signed-off-by: Ken Chen <kenneth.w.chen@intel.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-05-26[SCSI] TYPE_RBC cache fixes (sbp2.c affected)Al Viro
a) TYPE_SDAD renamed to TYPE_RBC and taken to scsi.h b) in sbp2.c remapping of TYPE_RPB to TYPE_DISK turned off c) relevant places in midlayer and sd.c taught to accept TYPE_RBC d) sd.c::sd_read_cache_type() looks into page 6 when dealing with TYPE_RBC - these guys have writeback cache flag there and are not guaranteed to have page 8 at all. e) sd_read_cache_type() got an extra sanity check - it checks that it got the page it asked for before using its contents. And screams if mismatch had happened. Rationale: there are broken devices out there that are "helpful" enough to go for "I don't have a page you've asked for, here, have another one". For example, PL3507 had been caught doing just that... f) sbp2 sets sdev->use_10_for_rw and sdev->use_10_for_ms instead of bothering to remap READ6/WRITE6/MOD_SENSE, so most of the conversions in there are gone now. Incidentally, I wonder if USB storage devices that have no mode page 8 are simply RBC ones. I haven't touched that, but it might be interesting to check... Signed-off-by: Al Viro <viro@parcelfarce.linux.theplanet.co.uk> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-04-16Linux-2.6.12-rc2Linus Torvalds
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!