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* ide-tape: cleanup and fix commentsBorislav Petkov2008-02-061-410/+271
| | | | | | | | | | Also, remove redundant ones and cleanup whitespace. Bart: - minor fixups Signed-off-by: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide-tape: shorten some function namesBorislav Petkov2008-02-061-17/+15
| | | | | Signed-off-by: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide-tape: remove idetape_increase_max_pipeline_stages()Borislav Petkov2008-02-061-20/+15
| | | | | | | This function was being used only at one place so fold it in there. Signed-off-by: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide-tape: struct idetape_tape_t: shorten member names v2Borislav Petkov2008-02-061-97/+113
| | | | | | | | | | | Shorten some member names not too aggressively since this driver might be gone anyway soon. Bart: - minor fixes Signed-off-by: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide-tape: struct idetape_tape_t: remove unused membersBorislav Petkov2008-02-061-34/+11
| | | | | | | | | | | | | | - last_frame_position: only being written to once - firmware_revision, product_id, vendor_id: used once, remove from struct idetape_tape_t and deal with them locally - firmware_revision_num: only written to once - tape_still_time_begin: completely unused - tape_still_time: never written to; remove corresponding code chunk - uncontrolled_last_pipeline_head: only once written to - blocks_in_buffer: only written to Signed-off-by: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide-tape: remove typedef idetape_chrdev_direction_tBorislav Petkov2008-02-061-30/+32
| | | | | | | .. and replace it with plain enums. Signed-off-by: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide-tape: simplify code branching in the interrupt handlerBorislav Petkov2008-02-061-26/+28
| | | | | | | | | | | ... by adding a new typedef function pointer idetape_io_buf in order to call the proper buffer i/o handler depending on the data direction. Bart: - move idetape_io_buf before idetape_pc_intr() comment Signed-off-by: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide-tape: remove unreachable code chunkBorislav Petkov2008-02-061-12/+10
| | | | | | | | | | | tape->speed_control is set to 1 in idetape_setup(), but, in calculate_speeds() its value is tested for being 0, 1, or 2. Remove the if-branches where tape->speed_control != 1 since they are never executed. Also, rename calculate_speeds() by adding driver's prefix as is with the other function names. Signed-off-by: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide-tape: remove struct idetape_read_position_result_tBorislav Petkov2008-02-061-32/+18
| | | | | | | | | | There should be no functional changes resulting from this patch. Bart: - remove needless "!!" Signed-off-by: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide-tape: refactor the debug logging facilityBorislav Petkov2008-02-061-222/+122
| | | | | | | | | | | | | | | | | Teach the debug logging macro to differentiate between log levels based on the type of debug level enabled specifically instead of a threshold-based one. Thus, convert tape->debug_level to a bitmask that is written to over /proc. Also, - cleanup and simplify the debug macro thus removing a lot of code lines, - get rid of unused debug levels, - adjust the loglevel at several places where it was simply missing (e.g. idetape_chrdev_open()) - move the tape ptr initialization up in idetape_chrdev_open() so that we can use it in the debug_log macro earlier in the function. Signed-off-by: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: add ide_read_error() inline helperBartlomiej Zolnierkiewicz2008-02-068-10/+18
| | | | | Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: add ide_read_[alt]status() inline helpersBartlomiej Zolnierkiewicz2008-02-0611-69/+100
| | | | | Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: remove ide_setup_ports()Bartlomiej Zolnierkiewicz2008-02-068-184/+133
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ide-cris.c: * Add cris_setup_ports() helper and use it instead of ide_setup_ports() (fixes random value being set in ->io_ports[IDE_IRQ_OFFSET]). buddha.c: * Add buddha_setup_ports() helper and use it instead of ide_setup_ports(). falconide.c: * Add falconide_setup_ports() helper and use it instead of ide_setup_ports(), also fix return value of falconide_init() while at it. gayle.c: * Add gayle_setup_ports() helper and use it instead of ide_setup_ports(). macide.c: * Add macide_setup_ports() helper and use it instead of ide_setup_ports() (fixes incorrect value being set in ->io_ports[IDE_IRQ_OFFSET]). q40ide.c: * Fix q40_ide_setup_ports() comments. ide.c: * Remove no longer needed ide_setup_ports(). Cc: Mikael Starvik <starvik@axis.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: remove redundant BUG_ON() from [atapi_]reset_pollfunc()Bartlomiej Zolnierkiewicz2008-02-061-2/+0
| | | | | | Same BUG_ON() is present inside ide_set_handler(). Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: remove write-only ->sata_misc[] from ide_hwif_tBartlomiej Zolnierkiewicz2008-02-062-8/+0
| | | | | | | | | * Remove write-only ->sata_misc[] from ide_hwif_t. * Remove no longer used SATA_{MISC,PHY,IEN}_OFFSET defines. Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ppc: fix #ifdef-s in mediabay driver (take 2)Bartlomiej Zolnierkiewicz2008-02-062-29/+25
| | | | | | | | | | | | | | | | | | | | | | | * Replace incorrect CONFIG_BLK_DEV_IDE #ifdef in check_media_bay() by CONFIG_MAC_FLOPPY one. * Replace incorrect CONFIG_BLK_DEV_IDE #ifdef-s by CONFIG_BLK_DEV_IDE_PMAC ones. * check_media_bay() is used only by drivers/block/swim3.c so make this function available only if CONFIG_MAC_FLOPPY is defined. * check_media_bay_by_base() and media_bay_set_ide_infos() are used only by drivers/ide/ppc/pmac.c so so make these functions available only if CONFIG_MAC_FLOPPY is defined. v2: * Remove ifdefs from function prototypes. (Andrew Morton) Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide-pci-generic: kill the unused ifdef/endif/MODULE codeDenis Cheng2008-02-063-14/+5
| | | | | | | | | | | | | | | with module_param macro, the __setup code can be killed now: const __setup("all-generic-ide", ide_generic_all_on); and the module name "generic.ko" is not descriptive to its functionality, can be changed in Makefile, the "ide-pci-generic.ko" is better. the ide-pci-generic.all-generic-ide parameter also documented in Documentation/kernel-parameters.txt Signed-off-by: Denis Cheng <crquan@gmail.com> Cc: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* drivers/ide/legacy/hd.c: fix uninitialized var warningAndrew Morton2008-02-061-3/+6
| | | | | | | | | | drivers/ide/legacy/hd.c: In function 'hd_request': drivers/ide/legacy/hd.c:424: warning: 'stat' may be used uninitialized in this function gcc is being stupid. Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* drivers/ide/ide-acpi.c: fix uninitialized var warningAndrew Morton2008-02-061-1/+1
| | | | | | | | drivers/ide/ide-acpi.c: In function 'ide_acpi_init': drivers/ide/ide-acpi.c:175: warning: 'dev_handle' may be used uninitialized in this function Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* Palmchip BK3710 IDE driverAnton Salnikov2008-02-065-2/+409
| | | | | | | | | | | | | | | | This is Palmchip BK3710 IDE controller support. The IDE controller logic supports PIO, MultiWord-DMA and Ultra-DMA modes. Supports interface to Compact Flash (CF) configured in True-IDE mode. Bart: - remove dead code - fix ide_hwif_setup_dma() build problem Signed-off-by: Anton Salnikov <asalnikov@ru.mvista.com> Reviewed-by: Alan Cox <alan@lxorguk.ukuu.org.uk> Reviewed-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide-generic: probing bugfixBartlomiej Zolnierkiewicz2008-02-061-2/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On Tuesday 05 February 2008, Linus Torvalds wrote: > > On Sat, 2 Feb 2008, Bartlomiej Zolnierkiewicz wrote: > > > > * next part of IDE probing code re-organization saga > >   (that would be me) > > This seems to cause very irritating and bogus messages for me: > >       Probing IDE interface ide0... >       Probing IDE interface ide1... >       ide2: I/O resource 0x0-0x7 not free. >       ide2: ports already in use, skipping probe >       ide3: I/O resource 0x0-0x7 not free. >       ide3: ports already in use, skipping probe >       ide4: I/O resource 0x0-0x7 not free. >       ide4: ports already in use, skipping probe >       ide5: I/O resource 0x0-0x7 not free. >       ide5: ports already in use, skipping probe >       ide6: I/O resource 0x0-0x7 not free. >       ide6: ports already in use, skipping probe >       ide7: I/O resource 0x0-0x7 not free. >       ide7: ports already in use, skipping probe >       ide8: I/O resource 0x0-0x7 not free. >       ide8: ports already in use, skipping probe >       ide9: I/O resource 0x0-0x7 not free. >       ide9: ports already in use, skipping probe > > and that's just totally bogus. It shouldn't even request that region, > since it's not been allocated! The commit 139ddfcab50e5eabcc88341c8743a990ac1be6a2 ("ide: move handling of I/O resources out of ide_probe_port()") changed the ordering of hwif->noprobe check vs ide_hwif_request_regions() call (so that we now reserve I/O regions before checking for hwif->noprobe). However ide-generic host driver depended on hwif->noprobe to be set for skipping probing of empty ide_hwifs[] slots. Fix it by passing only indexes of non-empty slots to ide_device_add_all() from ide_generic_init(). Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* Merge branch 'release' of ↵Linus Torvalds2008-02-0528-376/+468
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6 * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6: [IA64] make pfm_get_task work with virtual pids [IA64] honor notify_die() returning NOTIFY_STOP [IA64] remove dead code: __cpu_{down,die} from !HOTPLUG_CPU [IA64] Appoint kvm/ia64 Maintainers [IA64] ia64_set_psr should use srlz.i [IA64] Export three symbols for module use [IA64] mca style cleanup [IA64] sn_hwperf semaphore to mutex [IA64] generalize attribute of fsyscall_gtod_data [IA64] efi.c Add /* never reached */ annotation [IA64] efi.c Spelling/punctuation fixes [IA64] Make efi.c mostly fit in 80 columns [IA64] aliasing-test: fix gcc warnings on non-ia64 [IA64] Slim-down __clear_bit_unlock [IA64] Fix the order of atomic operations in restore_previous_kprobes on ia64 [IA64] constify function pointer tables [IA64] fix userspace compile error in gcc_intrin.h
| * [IA64] make pfm_get_task work with virtual pidsPavel Emelyanov2008-02-051-2/+2
| | | | | | | | | | | | | | | | | | This pid comes from user space, so treat it accordingly. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Tony Luck <tony.luck@intel.com>
| * [IA64] honor notify_die() returning NOTIFY_STOPJan Beulich2008-02-054-22/+39
| | | | | | | | | | | | | | | | | | This requires making die() and die_if_kernel() return a value, and their callers to honor this (and be prepared that it returns). Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Tony Luck <tony.luck@intel.com>
| * [IA64] remove dead code: __cpu_{down,die} from !HOTPLUG_CPUJan Beulich2008-02-051-11/+0
| | | | | | | | | | | | | | | | | | Neither __cpu_down() nor __cpu_die() are being referenced without CONFIG_HOTPLUG_CPU. Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Tony Luck <tony.luck@intel.com>
| * [IA64] Appoint kvm/ia64 MaintainersZhang Xiantao2008-02-041-0/+9
| | | | | | | | | | | | | | | | Anthony and Xiantao are working on KVM for ia64. Signed-off-by Anthony Xu <anthony.xu@intel.com> Signed-off-by Xiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
| * [IA64] ia64_set_psr should use srlz.iXiantao Zhang2008-02-042-2/+1
| | | | | | | | | | | | | | | | | | The only in kernel use of ia64_set_psr() needs to follow it with a srlz.i (since it is changing state for PSR.ic). So it is pointless to issue srlz.d inside this function. Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
| * [IA64] Export three symbols for module useZhang, Xiantao2008-02-043-11/+20
| | | | | | | | | | | | | | | | Since kvm/module needs to use some unexported functions in kernel, so export them with this patch. Signed-off-by: Zhang Xiantao <xiantao.zhang@intel.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
| * [IA64] mca style cleanupHidetoshi Seto2008-02-047-57/+70
| | | | | | | | | | | | | | Unified changelog, 80 columns rule, and address form fix. Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
| * [IA64] sn_hwperf semaphore to mutexDaniel Walker2008-02-041-4/+5
| | | | | | | | | | | | | | | | Really simple mutex style semaphore user. The new API is struct mutex which is what I've converted it to with this change. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
| * [IA64] generalize attribute of fsyscall_gtod_dataHidetoshi Seto2008-02-041-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In an ordinary way, > } __attribute__ ((aligned (L1_CACHE_BYTES))); should be > } ____cacheline_aligned; to save some bytes on an uni-processor. Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
| * [IA64] efi.c Add /* never reached */ annotationAron Griffis2008-02-041-2/+2
| | | | | | | | | | | | | | | | As written, this loop could be for (;;) instead of do while (md). The tests inside the loop always result in a return so the loop never terminates normally. Signed-off-by: Aron Griffis <aron@hp.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
| * [IA64] efi.c Spelling/punctuation fixesAron Griffis2008-02-041-8/+8
| | | | | | | | | | | | | | | | | | Incorporates the suggestions from Peter Chubb the last time I submitted this. This called for using the same verb tense in the couple of preceding comments as well. Signed-off-by: Aron Griffis <aron@hp.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
| * [IA64] Make efi.c mostly fit in 80 columnsAron Griffis2008-02-041-223/+266
| | | | | | | | | | | | | | | | | | | | This patch is purely whitespace changes to make the code fit in 80 columns, plus fix some inconsistent indentation. The efi_guidcmp() tests remain wider than 80-columns since that seems to be the most clear. Signed-off-by: Aron Griffis <aron@hp.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
| * [IA64] aliasing-test: fix gcc warnings on non-ia64Randy Dunlap2008-02-041-6/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Eliminate all build warnings. OK, these build warnings are from a build on x86_64. When I build on ia64, I don't see warnings. Now builds cleanly on ia64 and x86_64. Documentation/ia64/aliasing-test.c: In function 'map_mem': Documentation/ia64/aliasing-test.c:39: warning: implicit declaration of function 'ioctl' Documentation/ia64/aliasing-test.c: In function 'scan_rom': Documentation/ia64/aliasing-test.c:183: warning: format '%ld' expects type 'long int', but argument 4 has type 'int' Documentation/ia64/aliasing-test.c: At top level: Documentation/ia64/aliasing-test.c:208: warning: function declaration isn't a prototype Documentation/ia64/aliasing-test.c: In function 'main': Documentation/ia64/aliasing-test.c:259: warning: control reaches end of non-void function Documentation/ia64/aliasing-test.c: In function 'scan_rom': Documentation/ia64/aliasing-test.c:152: warning: 'rc' may be used uninitialized in this function Documentation/ia64/aliasing-test.c: In function 'scan_tree': Documentation/ia64/aliasing-test.c:68: warning: 'rc' may be used uninitialized in this function Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Acked-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Tony Luck <tony.luck@intel.com>
| * [IA64] Slim-down __clear_bit_unlockZoltan Menyhart2008-02-041-22/+28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - I removed the unnecessary barrier() from __clear_bit_unlock(). ia64_st4_rel_nta() makes sure all the modifications are globally seen before the bit is seen to be off. - I made __clear_bit() modeled after __set_bit() and __change_bit(). - I corrected some comments sating that a memory barrier is provided, yet in reality, it is the acquisition side of the memory barrier only. - I corrected some comments, e.g. test_and_clear_bit() was peaking about "bit to set". Signed-off-by: Zoltan Menyhart, <Zoltan.Menyhart@bull.net> Acked-by: Nick Piggin <npiggin@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Tony Luck <tony.luck@intel.com>
| * [IA64] Fix the order of atomic operations in restore_previous_kprobes on ia64Masami Hiramatsu2008-02-041-3/+4
| | | | | | | | | | | | | | | | | | Fix the order of atomic operations to prevent overwriting prev_kprobe[0]. To pop values from stack, we must decrement stack index right AFTER reading values. Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
| * [IA64] constify function pointer tablesJan Engelhardt2008-02-045-5/+5
| | | | | | | | | | Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de> Signed-off-by: Tony Luck <tony.luck@intel.com>
| * [IA64] fix userspace compile error in gcc_intrin.hDoug Chapman2008-02-041-0/+2
| | | | | | | | | | | | | | | | | | | | | | Fixes userspace build errors when linux/ipv6.h is included such as in the dhcpv6 package under fedora. Likely causes other userspace build errors as well. I found this in akpm's tree from 2.6.18 but could not find any case of anyone proposing it for the main tree. Signed-off-by: Doug Chapman <doug.chapman@hp.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Tony Luck <tony.luck@intel.com>
* | Merge branch 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6Linus Torvalds2008-02-0525-520/+587
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6: [S390] dcss: Initialize workqueue before using it. [S390] Remove BUILD_BUG_ON() in vmem code. [S390] sclp_tty/sclp_vt220: Fix scheduling while atomic [S390] dasd: fix panic caused by alias device offline [S390] dasd: add ifcc handling [S390] latencytop s390 support. [S390] Implement ext2_find_next_bit. [S390] Cleanup & optimize bitops. [S390] Define GENERIC_LOCKBREAK. [S390] console: allow vt220 console to be the only console [S390] Fix couple of section mismatches. [S390] Fix smp_call_function_mask semantics. [S390] Fix linker script. [S390] DEBUG_PAGEALLOC support for s390. [S390] cio: Add shutdown callback for ccwgroup. [S390] cio: Update documentation. [S390] cio: Clean up chsc response code handling. [S390] cio: make sense id procedure work with partial hardware response
| * | [S390] dcss: Initialize workqueue before using it.Heiko Carstens2008-02-051-3/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In case a dcss segment cannot be loaded blk_cleanup_queue will be called before blk_queue_make_request, leaving the struct work unplug_work of the request queue uninitialized before it is used. That leads also to the lockdep message below. To avoid that call blk_queue_make_request right after the request_queue has been allocated. This makes sure that the struct work is always initialized before it is used. INFO: trying to register non-static key. the code is fine but needs lockdep annotation. turning off the locking correctness validator. CPU: 2 Not tainted 2.6.24 #6 Process swapper (pid: 1, task: 000000000f854038, ksp: 000000000f85f980) 040000000f85f860 000000000f85f880 0000000000000002 0000000000000000 000000000f85f920 000000000f85f898 000000000f85f898 000000000001622e 0000000000000000 000000000f85f980 0000000000000000 0000000000000000 000000000f85f880 000000000000000c 000000000f85f880 000000000f85f8f0 0000000000342908 000000000001622e 000000000f85f880 000000000f85f8d0 Call Trace: ([<000000000001619e>] show_trace+0xda/0x104) [<0000000000016288>] show_stack+0xc0/0xf8 [<00000000000163d0>] dump_stack+0xb0/0xc0 [<000000000006e4ea>] __lock_acquire+0x47e/0x1160 [<000000000006f27c>] lock_acquire+0xb0/0xd8 [<000000000005a522>] __cancel_work_timer+0x9e/0x240 [<000000000005a72e>] cancel_work_sync+0x2a/0x3c [<0000000000165c46>] kblockd_flush_work+0x26/0x34 [<0000000000169034>] blk_sync_queue+0x38/0x48 [<0000000000169080>] blk_release_queue+0x3c/0xa8 [<000000000017bce8>] kobject_cleanup+0x58/0xac [<000000000017bd66>] kobject_release+0x2a/0x38 [<000000000017d28e>] kref_put+0x6e/0x94 [<000000000017bc80>] kobject_put+0x38/0x48 [<00000000001653be>] blk_put_queue+0x2a/0x38 [<0000000000168fee>] blk_cleanup_queue+0x82/0x90 [<0000000000213e7e>] dcssblk_add_store+0x34e/0x700 [<00000000005243b8>] dcssblk_init+0x1a0/0x308 [<000000000050a3c2>] kernel_init+0x1b2/0x3a4 [<000000000001ac82>] kernel_thread_starter+0x6/0xc [<000000000001ac7c>] kernel_thread_starter+0x0/0xc INFO: lockdep is turned off. Cc: Gerald Schaefer <geraldsc@de.ibm.com> Cc: Carsten Otte <cotte@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * | [S390] Remove BUILD_BUG_ON() in vmem code.Heiko Carstens2008-02-053-6/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove BUILD_BUG_ON() in vmem code since it causes build failures if the size of struct page increases. Instead calculate at compile time the address of the highest physical address that can be added to the 1:1 mapping. This supposed to fix a build failure with the page owner tracking leak detector patches as reported by akpm. page-owner-tracking-leak-detector-broken-on-s390.patch can be removed from -mm again when this is merged. Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * | [S390] sclp_tty/sclp_vt220: Fix scheduling while atomicChristian Borntraeger2008-02-052-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Under load the following bug message appeared while using sysrq-t: BUG: scheduling while atomic: bash/3662/0x00000004 0000000000105b74 000000003ba17740 0000000000000002 0000000000000000 000000003ba177e0 000000003ba17758 000000003ba17758 0000000000105bfe 0000000000817ba8 000000003f2a5350 0000000000000000 0000000000000000 000000003ba17740 000000000000000c 000000003ba17740 000000003ba177b0 0000000000568630 0000000000105bfe 000000003ba17740 000000003ba17790 Call Trace: ([<0000000000105b74>] show_trace+0x13c/0x158) [<0000000000105c58>] show_stack+0xc8/0xfc [<0000000000105cbc>] dump_stack+0x30/0x40 [<000000000012a0c8>] __schedule_bug+0x84/0x94 [<000000000056234e>] schedule+0x5ea/0x970 [<0000000000477cd2>] __sclp_vt220_write+0x1f6/0x3ec [<0000000000477f00>] sclp_vt220_con_write+0x38/0x48 [<0000000000130b4a>] __call_console_drivers+0xbe/0xd8 [<0000000000130bf0>] _call_console_drivers+0x8c/0xd0 [<0000000000130eea>] release_console_sem+0x1a6/0x2fc [<0000000000131786>] vprintk+0x262/0x480 [<00000000001319fa>] printk+0x56/0x68 [<0000000000125aaa>] print_cfs_rq+0x45e/0x4a4 [<000000000012614e>] sched_debug_show+0x65e/0xee8 [<000000000012a8fc>] show_state_filter+0x1cc/0x1f0 [<000000000044d39c>] sysrq_handle_showstate+0x2c/0x3c [<000000000044d1fe>] __handle_sysrq+0xae/0x18c [<00000000002001f2>] write_sysrq_trigger+0x8a/0x90 [<00000000001f7862>] proc_reg_write+0x9a/0xc4 [<00000000001a83d4>] vfs_write+0xb8/0x174 [<00000000001a8b88>] sys_write+0x58/0x8c [<0000000000112e7c>] sysc_noemu+0x10/0x16 [<0000020000116f68>] 0x20000116f68 The problem seems to be, that with a full console buffer, release_console_sem disables interrupts with spin_lock_irqsave and then calls the console function without enabling interrupts. __sclp_vt220_write checks for in_interrupt, to decide if it can schedule. It should check for in_atomic instead. The same is true for sclp_tty.c. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * | [S390] dasd: fix panic caused by alias device offlineStefan Weinhuber2008-02-051-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When an alias device is set offline while it is in use this may result in a panic in the cleanup part of the dasd_block_tasklet. The problem here is that there may exist some ccw requests that were originally created for the alias device and transferred to the base device when the alias was set offline. When these request are cleaned up later, the discipline pointer in the alias device may not be valid anymore. To fix this use the base device discipline to find the cleanup function. Signed-off-by: Stefan Weinhuber <wein@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * | [S390] dasd: add ifcc handlingStefan Haberland2008-02-052-27/+52
| | | | | | | | | | | | | | | | | | | | | | | | | | | Adding interface control check (ifcc) handling in error recovery. First retry up to 255 times and if all retries fail try an alternate path if possible. Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * | [S390] latencytop s390 support.Heiko Carstens2008-02-052-8/+26
| | | | | | | | | | | | | | | | | | Cc: Holger Wolf <wolf@linux.vnet.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * | [S390] Implement ext2_find_next_bit.Heiko Carstens2008-02-051-2/+41
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fixes this compile error: fs/ext4/mballoc.c: In function 'ext4_mb_generate_buddy': fs/ext4/mballoc.c:954: error: implicit declaration of function 'generic_find_next_le_bit' Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * | [S390] Cleanup & optimize bitops.Martin Schwidefsky2008-02-051-296/+219
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The bitops header is now a bit shorter and easier to understand since it uses less inline assembly. It requires some tricks to persuade the compiler to generate decent code. The ffz/ffs functions now use the _zb_findmap/_sb_findmap table as well. With this cleanup the new bitops for ext4 can be implemented with a few lines, instead of another large inline assembly. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * | [S390] Define GENERIC_LOCKBREAK.Martin Schwidefsky2008-02-051-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix compile error: CC arch/s390/kernel/asm-offsets.s In file included from arch/s390/kernel/asm-offsets.c:7: include/linux/sched.h: In function 'spin_needbreak': include/linux/sched.h:1931: error: implicit declaration of function '__raw_spin_is_contended' make[2]: *** [arch/s390/kernel/asm-offsets.s] Error 1 Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * | [S390] console: allow vt220 console to be the only consolePeter Oberparleiter2008-02-051-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | Fix console detection logic to support configurations in which the vt220 console is the only available Linux console. Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
generated by cgit (git 2.34.1) at 2024-09-21 07:30:53 +0000