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* Merge by hand (conflicts in sd.c)James Bottomley2005-09-0649-755/+2482
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| * [SCSI] unexport scsi_add_timer/scsi_delete_timerChristoph Hellwig2005-09-064-46/+3
| | | | | | | | Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * [SCSI] switch EH thread startup to the kthread APIChristoph Hellwig2005-09-063-44/+10
| | | | | | | | Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * [SCSI] fix SCSI_IOCTL_PROBE_HOSTChristoph Hellwig2005-09-061-9/+9
| | | | | | | | | | | | | | | | | | This returns always false with new-style drivers right now. Make it return always true instead, as a host must be present if we are able to call the ioctl (without a host attached there would be no device node to call on..) Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * [SCSI] Universal Xport no attach blacklistAnton Blanchard2005-09-061-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On Fri, Dec 13, 2002 at 12:24:39AM +1100, Anton Blanchard wrote: > We tested 2.5.51 on a ppc64 box, qlogic 2312 and a fastt700 array. I > had CONFIG_SCSI_REPORT_LUNS and unfortunately it thought the management > LUN was a disk: > > Vendor: IBM Model: Universal Xport Rev: 0520 > Type: Direct-Access ANSI SCSI revision: 03 > > ... > > SCSI device sdaj: drive cache: write through > SCSI device sdaj: 40960 512-byte hdwr sectors (21 MB) > sdaj: unknown partition table > Attached scsi disk sdaj at scsi2, channel 0, id 0, lun 31 > > ... > > end_request: I/O error, dev sdaj, sector 0 Three years later... It looks like SGI use the same FC vendor and they already have a workaround for this issue. The following patch adds the IBM version of it. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * [SCSI] sd: pause in sd_spinup_disk for slow USB devicesAlan Stern2005-09-061-5/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| * [SCSI] return success after retries in scsi_eh_turAlan Stern2005-09-061-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The problem lies in the way the error handler uses TEST UNIT READY to tell whether error recovery has succeeded. The scsi_eh_tur function gives up after one round of retrying; after that it decides that more error recovery is needed. However TUR is liable to report sense data indicating a retry is needed when in fact error recovery has succeeded. A typical example might be SK=2, ASC=4, ASCQ=1 (Logical unit in process of becoming ready). The mere fact that we were able to get a sensible reply to the TUR should indicate that the device is working well enough to stop error recovery. I ran across a case back in January where this happened. A CD-ROM drive timed out the INQUIRY command, and a device reset fixed the blockage. But then the drive kept responding with 2/4/1 -- because it was spinning up I suppose -- until the error handler gave up and placed it offline. If the initial INQUIRY had received the 2/4/1 instead, everything would have worked okay. It doesn't seem reasonable for things to fail just because the error handler had started running. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * [SCSI] ibmvscsi: handle large scatter/gather listsJames Bottomley2005-09-062-42/+116
| | | | | | | | | | | | | | | | | | | | | | | | | | The maximum size of a scatter-gather list that the current IBM VSCSI Client can handle is 10. This patch adds large scatter-gather support to the client so that it is capable of handling up to SG_ALL(255) number of requests in the scatter-gather list. Signed-off-by: Linda Xie <lxie@us.ibm.com> Acked by: Dave C Boutcher <sleddog@us.ibm.com> Rejections fixed up and Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * [SCSI] qla2xxx: Update version number to 8.01.00-k.Andrew Vasquez2005-09-041-2/+2
| | | | | | | | | | Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * [SCSI] qla2xxx: Stop firmware execution at unintialization time.Andrew Vasquez2005-09-044-6/+41
| | | | | | | | | | | | | | | | On ISP24xx parts, stop execution of firmware during ISP tear-down. Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * [SCSI] qla2xxx: Replace schedule_timeout().Andrew Vasquez2005-09-041-14/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | From: Nishanth Aravamudan <nacc@us.ibm.com> Replace schedule_timeout() with msleep()/msleep_interruptible() as appropriate, to guarantee the task delays as expected. Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com> Signed-off-by: Domen Puncer <domen@coderock.org> Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * [SCSI] qla2xxx: Remove bad call to fc_remove_host() during probe failure.Andrew Vasquez2005-09-041-2/+0
| | | | | | | | | | | | | | | | | | | | fc_remove_host() should only be called after a scsi_host has been successfully added via scsi_add_host() -- any failures while qla2xxx probing would result in an incorrect call to fc_remove_host() during cleanup. Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * [SCSI] qla2xxx: Add host attributes.Andrew Vasquez2005-09-043-0/+136
| | | | | | | | | | | | | | | | | | | | | | Export additional host information via the shost_attrs member in the scsi_host template. Attributes include: driver version, firmware version, ISP serial number, ISP type, ISP product ID, HBA model name, HBA model description, PCI interconnect information, and HBA port state. Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * [SCSI] qla2xxx: Add change_queue_depth/type() API support.Andrew Vasquez2005-09-041-0/+29
| | | | | | | | | | Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * [SCSI] qla2xxx: Remove redundant call to pci_unmap_sg().Andrew Vasquez2005-09-041-5/+1
| | | | | | | | | | | | | | | | | | | | In a corner-case failure where the request-q does not contain enough entries for a given request, pci_unmap_sg() would be called twice. Remove direct call and let the failure-path logic handle the unmapping. Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * [SCSI] qla2xxx: Remove RISC pause/release barriers during flash manipulation.Andrew Vasquez2005-09-041-34/+0
| | | | | | | | | | | | | | | | | | Remove unnecessary RISC pause/release barriers during ISP24xx flash manipulation. The ISP24xx can arbitrate flash access requests during RISC executions. Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * [SCSI] qla2xxx: Correct LED scheme definition.Andrew Vasquez2005-09-042-3/+3
| | | | | | | | | | | | | | | | | | Original implementation used an overloaded bit in the EFI parameters. The correct bit is BIT_4 of the special_options section of NVRAM. Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * [SCSI] qla2xxx: Simplify redundant target/device reset logic.Andrew Vasquez2005-09-043-56/+1
| | | | | | | | | | | | | | | | | | Remove redundant qla2x00_target_reset() function in favour of the equivalent qla2x00_device_reset(). Update callers of old function. Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * [SCSI] qla2xxx: Correct domain/area exclusion logic.Andrew Vasquez2005-09-041-1/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In an FL topology, limit port recognition to those devices not within the same area and domain of the ISP. The firmware will recogonize such devices during local-loop discovery. Some devices may respond to a PLOGI before they have completed their fabric login or they may not be a public device. In this case they will report: domain == 00 area == 00 alpa == <XX> which is valid. Exclude such devices from local loop discovery. Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * [SCSI] qla2xxx: Add FDMI support.Andrew Vasquez2005-09-048-5/+741
| | | | | | | | | | Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * [SCSI] qla2xxx: Export class-of-service (COS) information.Andrew Vasquez2005-09-044-0/+26
| | | | | | | | | | | | | | | | Export COS information for the fc_host and fc_remote_port objects added by the driver. Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * [SCSI] qla2xxx: Use dma_get_required_mask() in determining the 'ideal' DMA mask.Andrew Vasquez2005-09-041-23/+10
| | | | | | | | | | | | | | | | | | | | | | In order to efficiently utilise the ISP's IOCB request-queue, use the dma_get_required_mask() function to determine the use of command-type 2 or 3 IOCBs when queueing SCSI commands. This applies to ISP2[123]xx chips only, as the ISP24xx uses command-type 7 IOCBs which use 64bit DSDs. Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * [SCSI] fusion: whitespace fixesChristoph Hellwig2005-09-043-155/+174
| | | | | | | | | | Acked by: Moore, Eric Dean <Eric.Moore@lsil.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * [SCSI] fusion: endianess fixesChristoph Hellwig2005-09-043-16/+16
| | | | | | | | | | | | | | | | Assorted endianess fixes. I'll work on full endianess annotations later. Acked by: Moore, Eric Dean <Eric.Moore@lsil.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * [SCSI] fusion: update LSI headersChristoph Hellwig2005-09-046-44/+415
| | | | | | | | | | Acked by: Moore, Eric Dean <Eric.Moore@lsil.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * [SCSI] fusion: extended config header supportChristoph Hellwig2005-09-044-44/+81
| | | | | | | | | | Acked by: Moore, Eric Dean <Eric.Moore@lsil.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * [SCSI] aic7xxx: remove aiclib.cChristoph Hellwig2005-09-046-165/+253
| | | | | | | | | | | | | | | | #include of C files and macro tricks to rename symbols are evil and just cause trouble. Let's doublicate the two functions as they're going to go away soon enough anyway. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * [SCSI] aacraid: bad BUG_ON fixMark Haverkamp2005-09-041-1/+1
| | | | | | | | | | | | | | | | | | | | | | This was noticed by Doug Bazamic and the fix found by Mark Salyzyn at Adaptec. There was an error in the BUG_ON() statement that validated the calculated fib size which can cause the driver to panic. Signed-off-by: Mark Haverkamp <markh@osdl.org> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * [SCSI] sg direct io/mmap oops, st syncDouglas Gilbert2005-09-041-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adopts the same solution as proposed by Kai M. in a post titled: "[PATCH] SCSI tape signed/unsigned fix". The fix is in a function that the sg driver borrowed from the st driver so its maintenance is a little easier if the functions remain the same after the fix. - change nr_pages type from unsigned to signed so errors from get_user_pages() call are properly handled Signed-off-by: Douglas Gilbert <dougg@torque.net> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * This patch fixes in st.c the bug in the signed/unsigned int comparisonJames Bottomley2005-09-041-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | reported by Doug Gilbert and fixed by him in sg.c (see [PATCH] sg direct io/mmap oops). Doug fixed the comparison in sg.c. This fix for st.c does not touch the comparison but makes both arguments signed to remove the problem. The new code is adapted from linux/fs/bio.c. Signed-off-by: Kai Makisara <kai.makisara@kolumbus.fi> Rejections fixed up and Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * [SCSI] embryonic RAID classJames Bottomley2005-08-304-0/+317
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The idea behind a RAID class is to provide a uniform interface to all RAID subsystems (both hardware and software) in the kernel. To do that, I've made this class a transport class that's entirely subsystem independent (although the matching routines have to match per subsystem, as you'll see looking at the code). I put it in the scsi subdirectory purely because I needed somewhere to play with it, but it's not a scsi specific module. I used a fusion raid card as the test bed for this; with that kind of card, this is the type of class output you get: jejb@titanic> ls -l /sys/class/raid_devices/20\:0\:0\:0/ total 0 lrwxrwxrwx 1 root root 0 Aug 16 17:21 component-0 -> ../../../devices/pci0000:80/0000:80:04.0/host20/target20:1:0/20:1:0:0/ lrwxrwxrwx 1 root root 0 Aug 16 17:21 component-1 -> ../../../devices/pci0000:80/0000:80:04.0/host20/target20:1:1/20:1:1:0/ lrwxrwxrwx 1 root root 0 Aug 16 17:21 device -> ../../../devices/pci0000:80/0000:80:04.0/host20/target20:0:0/20:0:0:0/ -r--r--r-- 1 root root 16384 Aug 16 17:21 level -r--r--r-- 1 root root 16384 Aug 16 17:21 resync -r--r--r-- 1 root root 16384 Aug 16 17:21 state So it's really simple: for a SCSI device representing a hardware raid, it shows the raid level, the array state, the resync % complete (if the state is resyncing) and the underlying components of the RAID (these are exposed in fusion on the virtual channel 1). As you can see, this type of information can be exported by almost anything, including software raid. The more difficult trick, of course, is going to be getting it to perform configuration type actions with writable attributes. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * [SCSI] attribute container final klist fixesJames Bottomley2005-08-301-4/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since the attribute container deletes from a klist while it's walking it, it is vulnerable to the problem (and fix) here: http://marc.theaimsgroup.com/?l=linux-scsi&m=112485448830217 The attached fixes this (but won't compile without the above). It also fixes the logical reversal in the traversal loop which meant that we were never actually traversing the loop to hit this bug in the first place. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * [SCSI] correct attribute_container list usageJames Bottomley2005-08-302-24/+31
| | | | | | | | | | | | | | | | | | | | | | | | One of the changes in the attribute_container code in the scsi-misc tree was to add a lock to protect the list of devices per container. This, unfortunately, leads to potential scheduling while atomic problems if there's a sleep in the function called by a trigger. The correct solution is to use the kernel klist infrastructure instead which allows lockless traversal of a list. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* | [SCSI] quieten messages on scsi_execute commandsJames Bottomley2005-09-061-18/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | scsi_io_completion() can be a bit noisy about certain conditions. Previously this wasn't a problem for internally generated commands, since they never hit it. However, since we do all SCSI commands via bios, now they do. user CD testers like magicdev are now getting not ready messages every time they touch the CD to see if there's anything in it. Fix this by making all scsi_execute commands REQ_QUIET and making scsi_finish_io() not say anything for REQ_QUIET. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* | Merge by hand (conflicts in sr.c)James Bottomley2005-08-282-23/+2
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| * [SCSI] sr.c: Fix getting wrong sizePete Zaitcev2005-08-282-23/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Here's the problem. Try to do this on 2.6.12: - Kill udev and HAL - Insert a CD-ROM into a SCSI or USB CD-ROM drive - Run dd if=/dev/scd0 - cat /sys/block/sr0/size - Eject the CD, insert a different one - Run dd if=/dev/scd0 This is likely to do "access beyond the end of device", if you let it - cat /sys/block/sr0/size This shows the size of a previous CD, even though dd was supposed to revalidate the device. - Run dd if=/dev/scd0 The second run of dd works correctly! The bug was introduced in 2.5.31, when Al fixes the recursive opens in partitioning. Before, the code worked like this: - Block layer called cdrom_open directly - cdrom_open called sr_open - sr_open called check_disk_change - check_disk_change called sr_media_change - sr_media_change did cd->needs_disk_change=1 - before returning sr_open tested cd->needs_disk_change and called get_sector_size. In 2.6.12, the check_disk_change is called from cdrom_open only. Thus: - Block layer calls sr_bd_open - sr_bd_open calls cdrom_open - cdrom_open calls sr_open - sr_open tests cd->needs_disk_change, which wasn't set yet; returns - cdrom_open calls check_disk_change - check_disk_change calls sr_media_change - sr_media_change does cd->needs_disk_change=1, but nobody cares Acked by: Alexander Viro <aviro@redhat.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* | [SCSI] fix sense buffer length handling problemJames Bottomley2005-08-281-2/+2
| | | | | | | | | | | | | | | | | | | | The new bio code was incorrectly converted from stack allocated to kmalloc'd buffer handling. There are two places where it incorrectly uses sizeof(*sense) to get the size of the sense buffer. This actually produces one, so no sense data was ever getting back, causing failure in things like disk spin up. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* | [SCSI] fix 3ware raid emulated commandsJames Bottomley2005-08-281-18/+39
| | | | | | | | | | | | | | | | | | | | | | The 3ware emulated commands all expect they are executing in the use_sg == 0 case, which isn't true either in the block layer rework or an SG_IO ioctl. Fix this by adding the correct kmapping of the first element in the sg list. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* | [SCSI] comment cleanup for spi_executeChristoph Hellwig2005-08-281-4/+0
| | | | | | | | Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* | [SCSI] fix C syntax problem in scsi_lib.cakpm@osdl.org2005-08-281-2/+3
| | | | | | | | | | | | | | Older gcc's require variable definitions at the beginning of a block. Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* | [SCSI] convert ch to use scsi_execute_reqJames Bottomley2005-08-281-21/+17
| | | | | | | | | | | | | | I also tinkered with it's sense recognition routines to make them take scsi_sense_hdr structures instead of raw sense data. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* | [SCSI] convert sr to scsi_execute_reqJames Bottomley2005-08-282-74/+37
| | | | | | | | | | | | | | | | This follows almost the identical model to sd, except that there's one ioctl which returns raw sense data, so it had to use scsi_execute() instead. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* | [SCSI] convert sd to scsi_execute_req (and update the scsi_execute_req API)James Bottomley2005-08-287-173/+146
| | | | | | | | | | | | | | | | | | 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>
* | [SCSI] convert SPI transport class to scsi_executeJames Bottomley2005-08-286-78/+90
| | | | | | | | | | | | | | | | | | | | | | This one's slightly more difficult. The transport class uses REQ_FAILFAST, so another interface (scsi_execute) had to be invented to take the extra flag. Also, the sense functions are shifted around to allow spi_execute to place data directly into a struct scsi_sense_hdr. With this change, there's probably a lot of unnecessary sense buffer allocation going on which we can fix later. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* | [SCSI] convert the remaining mid-layer pieces to scsi_execute_reqJames Bottomley2005-08-286-111/+64
| | | | | | | | | | | | | | 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>
* | Merge HEAD from ../scsi-misc-2.6-tmp James Bottomley2005-08-2872-7184/+2986
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| * [SCSI] ibmvscsi timeout fixDave C Boutcher2005-08-281-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes a long term borkenness in ibmvscsi where we were using the wrong timeout field from the scsi command (and using the wrong units.) Now broken by the fact that the scsi_cmnd timeout field is gone entirely. This only worked before because all the SCSI targets assumed that 0 was default. Signed-off-by: Dave Boutcher <boutcher@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * [SCSI] drivers/scsi/constants.c should include scsi_dbg.hAdrian Bunk2005-08-281-0/+1
| | | | | | | | | | | | | | | | C files should include the files with the prototypes for their global functions. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * [SCSI] add missing attribute container function prototypeJames Bottomley2005-08-281-0/+1
| | | | | | | | | | | | | | | | attribute_container_classdev_to_container is an exported function of the attribute_container.c file. However, there's no prototype for it. Now I actually want to use it, so add one. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * [SCSI] ibmvscsi eh lockingDave C Boutcher2005-08-281-3/+20
| | | | | | | | | | | | | | | | | | With the removal of the spinlocking around eh calls, we need to add a little more locking back in, otherwise we do some naked list manipulation. Signed-off-by: Dave Boutcher <boutcher@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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