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2005-04-16[PATCH] md: remove a number of misleading calls to MD_BUGNeilBrown
The conditions that cause these calls to MD_BUG are not kernel bugs, just oddities in what userspace is asking for. Also convert analyze_sbs to return void, and the value it returned was always 0. Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16[PATCH] md: close a small race in md thread deregistrationNeilBrown
There is a tiny race when de-registering an MD thread, in that the thread could disappear before it is set a SIGKILL, causing send_sig to have problems. This is most easily closed by holding tasklist_lock between enabling the thread to exit (setting ->run to NULL) and telling it to exit. (akpm: ick. Needs to use kthread API and stop using signals) Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16[PATCH] serial: fix comments in 8250.cRussell King
Fix the formatting of some comments in 8250.c, and add a note that the register_serial / unregister_serial shouldn't be used in new code. We do this here in preference to adding to linux/serial.h, since that is used by a number of non-8250 drivers which pretend to be 8250. It is not known whether it would be appropriate to do so. Signed-off-by: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16[PATCH] drivers/infiniband/hw/mthca/mthca_main.c: remove an unused labelRoland Dreier
Correct unwinding in error path of mthca_init_icm(). Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16[PATCH] IB/mthca: add support for new MT25204 HCARoland Dreier
Decouple table of HCA features from exact HCA device type. Add a current FW version field so we can warn when someone is using old FW. Add support for new MT25204 HCA. Remove the warning about mem-free support, since it should be pretty solid at this point. Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16[PATCH] IB/mthca: map context for RDMA responder in mem-free modeRoland Dreier
Fix RDMA in mem-free mode: we need to make sure that the RDMA context memory is mapped for the HCA. Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16[PATCH] IB/mthca: update receive queue initialization for new HCAsRoland Dreier
Update initialization of receive queue to match new documentation. This change is required to support new MT25204 HCA. Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16[PATCH] IB/mthca: encapsulate mem-free check into mthca_is_memfree()Roland Dreier
Clean up mem-free mode support by introducing mthca_is_memfree() function, which encapsulates the logic of deciding if a device is mem-free. Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16[PATCH] IB/mthca: tweaks to mthca_cmd.cRoland Dreier
Minor tweaks to firmware command handling: kill off an unused get of a value, and add a little more info to debug output. Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16[PATCH] IB/mthca: add fast memory region implementationMichael S. Tsirkin
Implement fast memory regions (FMRs), where the driver writes directly into the HCA's translation tables rather than requiring a firmware command. For Tavor, MTTs for FMR are separate from regular MTTs, and are reserved at driver initialization. This is done to limit the amount of virtual memory needed to map the MTTs. For Arbel, there's no such limitation, and all MTTs and MPTs may be used for FMR or for regular MR. Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16[PATCH] IB/mthca: split MR key munging routinesMichael S. Tsirkin
Split Tavor and Arbel/mem-free index<->hw key munging routines, so that FMR implementation can call correct implementation without testing HCA type (which it already knows). Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16[PATCH] IB/mthca: add mthca_table_find() functionMichael S. Tsirkin
Add mthca_table_find() function, which returns the lowmem address of an entry in a mem-free HCA's context tables. This will be used by the FMR implementation. Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16[PATCH] IB/mthca: add SYNC_TPT firmware commandMichael S. Tsirkin
Add code for SYNC_TPT firmware command, which will be used by FMR implementation. Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16[PATCH] IB/mthca: add mthca_write64_raw() for writing to MTT table directlyMichael S. Tsirkin
Add mthca_write64_raw() function, which will be used to write FMR entries that are in ioremapped PCI memory. Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16[PATCH] IB/mthca: encapsulate MTT buddy allocatorMichael S. Tsirkin
Encapsulate the buddy allocator used for MTT segments. This cleans up the code and also gets us ready to add FMR support. Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16[PATCH] IB/mthca: allow address handle creation in interrupt contextRoland Dreier
Make address handle verbs usable from interrupt context. Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16[PATCH] IB/mthca: fill in opcode field for send completionsMichael S. Tsirkin
Fill in missing fields in send completions. Signed-off-by: Itamar Rabenstein <itamar@mellanox.co.il> Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16[PATCH] IB/mthca: fix MTT allocation in mem-free modeRoland Dreier
Fix bug in MTT allocation in mem-free mode. I misunderstood the MTT size value returned by the firmware -- it is really the size of a single MTT entry, since mem-free mode does not segment the MTT as the original firmware did. This meant that our MTT addresses ended up being off by a factor of 8. This meant that our MTT allocations might overlap, and so we could overwrite and corrupt earlier memory regions when writing new MTT entries. We fix this by always using our 64-byte MTT segment size. This allows some simplification of the code as well, since there's no reason to put the MTT segment size in a variable -- we can always use our enum value directly. Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16[PATCH] IB/mthca: implement RDMA/atomic operations for mem-free modeRoland Dreier
Add code to support RDMA and atomic send work requests in mem-free mode. Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16[PATCH] IB/mthca: fix format of CQ number for CQ eventsRoland Dreier
CQ numbers are only 24 bits, so only print 6 hex digits and mask off reserved part when reporting a CQ event. Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16[PATCH] IB/mthca: only free doorbell records in mem-free modeRoland Dreier
On error path, only free doorbell records if we're in mem-free mode. Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16[PATCH] IB/mthca: print assigned IRQ when interrupt test failsRoland Dreier
Print IRQ number when NOP command interrupt test fails to help debugging. Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16[PATCH] IB/mthca: release mutex on doorbell alloc error pathRoland Dreier
Release mutex on error return path from mthca_alloc_db(). Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16[PATCH] IB/mthca: fix MR allocation error pathMichael S. Tsirkin
Fix error handling in MR allocation for mem-free mode: mthca_free must get an MR index, not a key. Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16[PATCH] IB/mthca: allocate correct number of doorbell pagesRoland Dreier
Doorbell record pages are allocated in HCA page size chunks (always 4096 bytes), so we need to divide by 4096 and not PAGE_SIZE when figuring out how many pages we'll need space for. Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16[PATCH] IB/mthca: clean up mthca_dereg_mr()Roland Dreier
It's cleaner to kfree mthca_mr, and not rely on the fact that ib_mr is the first field in mthca_mr. Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16[PATCH] IB/mthca: allow unaligned memory regionsMichael S. Tsirkin
The first buffer of a memory region is not required to be page-aligned, so don't return an error if it's not. Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16[PATCH] IB/mthca: fix posting sends with immediate dataRoland Dreier
When posting a work request with immediate data, put the immediate data in the immediate data field of the hardware's work request (rather than overwriting the flags field). Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16[PATCH] IB/mthca: fix calculation of RDB shiftRoland Dreier
Fix calculation of rdb_shift by using original number of QPs, not their slot in profile[] (which will be rearranged when we sort it). Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16[PATCH] IB/mthca: fill in more device query fieldsRoland Dreier
Implement more of the device_query method in mthca. Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16[PATCH] IB/mthca: map MPT/MTT context in mem-free modeRoland Dreier
In mem-free mode, when allocating memory regions, make sure that the HCA has context memory mapped to cover the virtual space used for the MPT and MTTs being used. Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16[PATCH] IB: Remove incorrect commentsHal Rosenstock
Eliminate unneeded and misleading comments Signed-off-by: Hal Rosenstock <halr@voltaire.com> Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16[PATCH] IB: Fix user MAD registrations with class 0Roland Dreier
Fix handling of MAD agent registrations with mgmt_class == 0. In this case ib_umad should pass a NULL registration request to the MAD core rather than a request with mgmt_class set to 0. Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16[PATCH] IB: Trivial FMR printk cleanupLibor Michalek
Add missing newline in printk. Signed-off-by: Libor Michalek <libor@topspin.com> Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16[PATCH] IB: Fix FMR pool crashRoland Dreier
Mask bits correctly from jhash result in ib_fmr_hash() so that the computed bucket index is within our hash table. This fixes an SDP crash. Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16[PATCH] IB: remove unneeded includesHal Rosenstock
Eliminate no longer needed include files Signed-off-by: Hal Rosenstock <halr@voltaire.com> Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16[PATCH] IB: Keep MAD work completion validSean Hefty
Replace the *wc field in ib_mad_recv_wc from pointing to a structure on the stack to one allocated with the received MAD buffer. This allows a client to access the *wc field after their receive completion handler has returned. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16[PATCH] IPoIB: convert to debugfsRoland Dreier
Convert IPoIB to use debugfs instead of its own custom debugging filesystem. Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16[PATCH] IPoIB: fix static rate calculationRoland Dreier
Correct and simplify calculation of static rate. We need to round up the quotient of (local_rate - path_rate) / path_rate. To round up we add (path_rate - 1) to the numerator, so the quotient simplifies to (local_rate - 1) / path_rate. No idea how I came up with the old formula. Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16[PATCH] IPoIB: set skb->mac.raw on receiveHal Rosenstock
Set skb->mac.raw on receive. This fixes crashes when this is dereferenced, for example by netfilter or when PF_PACKET is used. Signed-off-by: Hal Rosenstock <halr@voltaire.com> Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16[PATCH] arm: fix floppy disk dependenciesRussell King
Both the RiscPC and (optionally) EBSA285 have floppy disk support. Allow this option to be selected on these ARM platforms again. Signed-off-by: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16[PATCH] update maintainer for /dev/randomMatt Mackall
Ted has agreed to let me take over as maintainer of /dev/random and friends. I've gone ahead and added a line to his entry in CREDITS. Signed-off-by: Matt Mackall <mpm@selenic.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16[PATCH] hd: eliminate bad section referencesmaximilian attems
Fix hd section references: make parse_hd_setup() __init Error: ./drivers/ide/legacy/hd.o .text refers to 00000943 R_386_PC32 .init.text Signed-off-by: maximilian attems <janitor@sternwelten.at> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16[PATCH] pnpbios: eliminate bad section referencesmaximilian attems
one of the last buildcheck errors on i386, thanks Randy again for double checking. Fix pnpbios section references: make dmi_system_id pnpbios_dmi_table __initdata Error: ./drivers/pnp/pnpbios/core.o .data refers to 00000100 R_386_32 .init.text Error: ./drivers/pnp/pnpbios/core.o .data refers to 0000012c R_386_32 .init.text Signed-off-by: maximilian attems <janitor@sternwelten.at> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16[PATCH] fix up newly added jsm driverChristoph Hellwig
- plug various leaks and use after frees in the remove and initialization failure path (some still left) - remove useless global list of boards and use pci_set_drvdata instead - unobsfucate init path by merging functions together - kill various totally useless state variables - .. probably more I forgot Note that the tty part still generates lots of sparse warnings and there's still a totally useless layer of function pointer indirections, but maybe someone else will fix that bit up. Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16[PATCH] use cheaper elv_queue_empty when unplug a deviceKen Chen
In function __generic_unplug_device(), kernel can use a cheaper function elv_queue_empty() instead of more expensive elv_next_request to find whether the queue is empty or not. blk_run_queue can also made conditional on whether queue's emptiness before calling request_fn(). Signed-off-by: Jens Axboe <axboe@suse.de> Signed-off-by: Ken Chen <kenneth.w.chen@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16[PATCH] fix module_param_string() callsBert Wesarg
This patch fix 3 calls to module_param_string() in driver/media/video/tuner-core.c and drivers/media/video/tda9887.c. In all three places, the len and the perm parameter was switched. Signed-off-by: Bert Wesarg <wesarg@informatik.uni-halle.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16[PATCH] possible use-after-free of bioJens Axboe
There is a possibility that a bio will be accessed after it has been freed on SCSI. It happens if you submit a bio with BIO_SYNC marked and the auto-unplugging kicks the request_fn, SCSI re-enables interrupts in-between so if the request completes between the add_request() in __make_request() and the bio_sync() call, we could be looking at a dead bio. It's a slim race, but it has been triggered in the Real World. So assign bio_sync() to a local variable instead. Signed-off-by: Jens Axboe <axboe@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16[PATCH] fix few remaining u32 vs. pm_message_t problemsPavel Machek
This fixes remaining u32 vs. pm_message_t confusions in -rc2-mm3. [There are usb changes, too; they went to Greg on his request.] Signed-off-by: Pavel Machek <pavel@suse.cz> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16[PATCH] fix u32 vs. pm_message_t in rest of the treePavel Machek
This fixes u32 vs. pm_message_t confusion in remaining places. Fortunately there's few of them. Signed-off-by: Pavel Machek <pavel@suse.cz> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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