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* Merge git://git.linux-xtensa.org/kernel/xtensa-feedLinus Torvalds2007-09-14
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.linux-xtensa.org/kernel/xtensa-feed: [patch 1/2] Xtensa: enable arbitary tty speed setting ioctls [patch 2/2] xtensa console.c: remove duplicate #include [XTENSA] Add support for cache-aliasing [XTENSA] Add kernel module support [XTENSA] Add support for executable/non-executable feature in the mmu [XTENSA] Use the generic version of get_order [XTENSA] Initialize semaphore_wake_lock [XTENSA] Add typecast macro for constants [XTENSA] Fix timer instabilities. [XTENSA] Fix fadvise64_64 [XTENSA] Remove extraneous include statement [XTENSA] Move string-io functions to io.c from pci.c [XTENSA] Move pre-initialized structures to init_task.c [XTENSA] Add freestanding option to CFLAGS [XTENSA] Add getpgrp system-call to unistd.h [XTENSA] add missing system calls [XTENSA] fix wrong usage of __init and __initdata in traps.c
| * [patch 1/2] Xtensa: enable arbitary tty speed setting ioctlsAlan Cox2007-08-27
| | | | | | | | | | | | | | | | | | Adding the defines/constants activates the existing code in the tty layer and allows arbitary tty speeds to be requested on this platform Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Chris Zankel <chris@zankel.net>
| * [patch 2/2] xtensa console.c: remove duplicate #includeFrederik Deweerdt2007-08-27
| | | | | | | | | | | | | | | | | | This patch removes one of the two linux/console.h included in arch/xtensa/platform-iss/console.c Signed-off-by: Frederik Deweerdt <frederik.deweerdt@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Chris Zankel <chris@zankel.net>
| * [XTENSA] Add support for cache-aliasingChris Zankel2007-08-27
| | | | | | | | | | | | | | | | | | | | | | | | | | Add support for processors that have cache-aliasing issues, such as the Stretch S5000 processor. Cache-aliasing means that the size of the cache (for one way) is larger than the page size, thus, a page can end up in several places in cache depending on the virtual to physical translation. The method used here is to map a user page temporarily through the auto-refill way 0 and of of the DTLB. We probably will want to revisit this issue and use a better approach with kmap/kunmap. Signed-off-by: Chris Zankel <chris@zankel.net>
| * [XTENSA] Add kernel module supportChris Zankel2007-08-27
| | | | | | | | | | | | Add kernel module support. Signed-off-by: Chris Zankel <chris@zankel.net>
| * [XTENSA] Add support for executable/non-executable feature in the mmuChris Zankel2007-08-27
| | | | | | | | | | | | | | | | | | Newer processor versions starting with Xtensa6/LX2 support an 'executable' bit for memory pages. This bit replaces the 'valid' bit, so it must be always set to one for older processor versions. To mark a page invalid, we now set the cache-attributes to b11, which is backward compatible. Signed-off-by: Chris Zankel <chris@zankel.net>
| * [XTENSA] Use the generic version of get_orderChris Zankel2007-08-27
| | | | | | | | | | | | | | Use the generic version of get_order for processor configurations that don't have the 'nsa/nsau' instructions. Signed-off-by: Chris Zankel <chris@zankel.net>
| * [XTENSA] Initialize semaphore_wake_lockChris Zankel2007-08-27
| | | | | | | | | | | | Initialize semaphore_wake_lock. Signed-off-by: Chris Zankel <chris@zankel.net>
| * [XTENSA] Add typecast macro for constantsChris Zankel2007-08-27
| | | | | | | | | | | | | | Add macros (__XTENSA_UL and __XTENSA_UL_CONST) for typecasting constants. Signed-off-by: Chris Zankel <chris@zankel.net>
| * [XTENSA] Fix timer instabilities.Chris Zankel2007-08-27
| | | | | | | | | | | | The timer code could have missed a tick. Signed-off-by: Chris Zankel <chris@zankel.net>
| * [XTENSA] Fix fadvise64_64Chris Zankel2007-08-27
| | | | | | | | | | | | | | | | Xtensa passes long long arguments in a even/odd register pair, so we also need to shuffle the arguments when passed through the system call to avoid an empty argument register. Signed-off-by: Chris Zankel <chris@zankel.net>
| * [XTENSA] Remove extraneous include statementChris Zankel2007-08-27
| | | | | | | | | | | | We don't need to include processor.h in bug.h. Signed-off-by: Chris Zankel <chris@zankel.net>
| * [XTENSA] Move string-io functions to io.c from pci.cChris Zankel2007-08-27
| | | | | | | | | | | | | | The string-io functions (outs{bwl}, ins{bwl}) are independent from the PCI option and should be in a separate file. Signed-off-by: Chris Zankel <chris@zankel.net>
| * [XTENSA] Move pre-initialized structures to init_task.cChris Zankel2007-08-27
| | | | | | | | | | | | Move all initialization structures for the initial task to it's own file. Signed-off-by: Chris Zankel <chris@zankel.net>
| * [XTENSA] Add freestanding option to CFLAGSChris Zankel2007-08-27
| | | | | | | | | | | | We also need to set the freestanding option for GCC in the CFLAGS. Signed-off-by: Chris Zankel <chris@zankel.net>
| * [XTENSA] Add getpgrp system-call to unistd.hChris Zankel2007-08-27
| | | | | | | | | | | | | | Although __ARCH_WANT_SYS_GETPGRP was defined, the actualy entry for the getpgrp system-call was missing. Signed-off-by: Chris Zankel <chris@zankel.net>
| * [XTENSA] add missing system callsChris Zankel2007-08-27
| | | | | | | | | | | | | | | | Add missing system calls that have been recently added to the kernel for the Xtensa architecture and define __IGNORE macros for system calls that we don't need for Xtensa. Signed-off-by: Chris Zankel <chris@zankel.net>
| * [XTENSA] fix wrong usage of __init and __initdata in traps.cChris Zankel2007-08-27
| | | | | | | | | | | | | | | | A variable was defined with __init instead of __initdata and the function accessing that variable wasn't initialized with __init. Signed-off-by: Chris Zankel <chris@zankel.net>
* | Merge branch 'for-linus' of ↵Linus Torvalds2007-09-14
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/cooloney/blackfin-2.6 * 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/cooloney/blackfin-2.6: Blackfin arch: fix some bugs in lib/string.h functions found by our string testing modules Blackfin arch: fix the aliased write macros Blackfin arch: Update/Fix PM support add new pm_ops valid
| * | Blackfin arch: fix some bugs in lib/string.h functions found by our string ↵Mike Frysinger2007-09-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | testing modules - use ints for the return value rather than char since we actually return an int and we dont want it improperly being sign extended during the reload http://blackfin.uclinux.org/gf/project/uclinux-dist/tracker/?action=TrackerItemEdit&tracker_item_id=3525 - if src is shorter than the requested number of copy bytes, we need to null pad the rest http://blackfin.uclinux.org/gf/project/uclinux-dist/tracker/?action=TrackerItemEdit&tracker_item_id=3524 - mark these as __volatile__ and add memory to the clobber list so gcc does not optimize buffers around on us we may be using - rewrite asm code to be readable/maintainable Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
| * | Blackfin arch: fix the aliased write macrosRobin Getz2007-08-05
| | | | | | | | | | | | | | | | | | Signed-off-by: Robin Getz <robin.getz@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
| * | Blackfin arch: Update/Fix PM support add new pm_ops validMichael Hennerich2007-08-27
| | | | | | | | | | | | | | | | | | Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
* | | Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds2007-09-14
|\ \ \ | | | | | | | | | | | | | | | | | | | | * master.kernel.org:/home/rmk/linux-2.6-arm: [ARM] 4567/1: Fix 'Oops - undefined instruction' when CONFIG_VFP=y on non VFP device [ARM] realview: disable second GIC on RevB MPCore platforms
| * | | [ARM] 4567/1: Fix 'Oops - undefined instruction' when CONFIG_VFP=y on non ↵Tzachi Perelstein2007-09-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | VFP device vfp_init() takes care of the condition when CONFIG_VFP=y but no real VFP device exists. However, when this condition is true, a compiler might misplace code lines in a way that will break this support. (To be more specific - fmrx(FPSID) might be executed before vfp_testing_entry assignment, which will end up with Oops - undefined instruction). This patch adds a barrier() to guarantee the right execution ordering. Signed-off-by: Assaf Hoffman Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | | [ARM] realview: disable second GIC on RevB MPCore platformsRussell King2007-09-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The second GIC asserts a permanent interrupt on Rev.B MPCore platforms. Disable initialisation of this GIC to avoid unbootable systems. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | | | Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linusLinus Torvalds2007-09-14
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: [MIPS] 20Kc: Disable use of WAIT instruction. [MIPS] Workaround for 4Kc machine check exception [MIPS] Malta: Fix off by one bug in interrupt handler. [MIPS] No ide_default_io_base() if PCI IDE was not found [MIPS] Add #include <linux/profile.h> to arch/mips/kernel/time.c [MIPS] N32 needs to use compat_sys_futimesat [MIPS] rtlx: Fix build error. [MIPS] rtlx: fix int vs. long bug.
| * | | | [MIPS] 20Kc: Disable use of WAIT instruction.Ralf Baechle2007-09-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Another issue with 20Kc's WAIT, waiting for more details. With the 2.6.23 release immindent simply disable the use of WAIT instead of a more fancy workaround. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | | [MIPS] Workaround for 4Kc machine check exceptionMaciej W. Rozycki2007-09-14
| | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | | [MIPS] Malta: Fix off by one bug in interrupt handler.Ralf Baechle2007-09-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fairly cosmetic as it would only affect VSMP / SMTC kernels that don't use vectored interrupts. Found by Beth. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | | [MIPS] No ide_default_io_base() if PCI IDE was not foundAtsushi Nemoto2007-09-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Revert b5438582090406e2ccb4169d9b2df7c9939ae42b and add no_pci_devices() check to avoid crash due to early calling of pci_get_class(). Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | | [MIPS] Add #include <linux/profile.h> to arch/mips/kernel/time.cYoichi Yuasa2007-09-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It refer to CPU_PROFILING. arch/mips/kernel/time.c: In function 'local_timer_interrupt': arch/mips/kernel/time.c:142: error: implicit declaration of function 'profile_tick' arch/mips/kernel/time.c:142: error: 'CPU_PROFILING' undeclared (first use in this function) arch/mips/kernel/time.c:142: error: (Each undeclared identifier is reported only once arch/mips/kernel/time.c:142: error: for each function it appears in.) Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | | [MIPS] N32 needs to use compat_sys_futimesatJohannes Dickgreber2007-09-14
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | | [MIPS] rtlx: Fix build error.Ralf Baechle2007-09-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | CC arch/mips/kernel/rtlx.o cc1: warnings being treated as errors arch/mips/kernel/rtlx.c:59: warning: 'irq' defined but not used arch/mips/kernel/rtlx.c:60: warning: 'irq_num' defined but not used Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | | [MIPS] rtlx: fix int vs. long bug.Ralf Baechle2007-09-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | CC arch/mips/kernel/rtlx.o arch/mips/kernel/rtlx.c: In function 'rtlx_init': arch/mips/kernel/rtlx.c:114: warning: format '%x' expects type 'unsigned int', but argument 3 has type 'long unsigned int' Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* | | | | KVM: MMU: Fix rare oops on guest context switchAvi Kivity2007-09-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A guest context switch to an uncached cr3 can require allocation of shadow pages, but we only recycle shadow pages in kvm_mmu_page_fault(). Move shadow page recycling to mmu_topup_memory_caches(), which is called from both the page fault handler and from guest cr3 reload. Signed-off-by: Avi Kivity <avi@qumranet.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | | Merge branch 'master' of ↵Linus Torvalds2007-09-14
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ssh://master.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb * 'master' of ssh://master.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb: V4L/DVB (6220a): fix build error for et61x251 driver V4L/DVB (6188): Avoid a NULL pointer dereference during mpeg_open() V4L/DVB (6173a): Documentation: Remove reference to dead "cpia_pp=" boot-time option V4L/DVB (6148): Fix a warning at saa7191_probe V4L/DVB (6147): Pwc: Fix a broken debug message V4L/DVB (6144): Fix mux setup for composite sound on AverTV 307 V4L/DVB (6095): ivtv: fix VIDIOC_G_ENC_INDEX flag handling
| * | | | | V4L/DVB (6220a): fix build error for et61x251 driverLinus Torvalds2007-09-14
| | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
| * | | | | V4L/DVB (6188): Avoid a NULL pointer dereference during mpeg_open()Steven Toth2007-09-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Bug: With a hardware encoder board installed as cx88[1] and a non-encoder boards installed as cx88[0], an OOPS is generated during cx8802_get_device() called from mpeg_open(). Signed-off-by: Steven Toth <stoth@hauppauge.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
| * | | | | V4L/DVB (6173a): Documentation: Remove reference to dead "cpia_pp=" ↵Robert P. J. Day2007-09-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | boot-time option Since this boot-time option was removed in commit 9ab7e323af9f9efad3e20a14faa4d947adfac381, delete the reference to it. Signed-off-by: Robert P. J. Day <rpjday@mindspring.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
| * | | | | V4L/DVB (6148): Fix a warning at saa7191_probeMauro Carvalho Chehab2007-09-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | saa7191.c: In function 'saa7191_probe': saa7191.c:596: warning: passing argument 3 of 'saa7191_write_block' discards qualifiers from pointer target type Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
| * | | | | V4L/DVB (6147): Pwc: Fix a broken debug messageJean Delvare2007-09-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 85237f202d46d55c1bffe0c5b1aa3ddc0f1dce4d introduced the following warning (with CONFIG_USB_PWC_DEBUG=y): drivers/media/video/pwc/pwc-if.c: In function "pwc_video_close": drivers/media/video/pwc/pwc-if.c:1211: warning: "i" may be used uninitialized in this function This is true, and can cause a broken debug message to be logged. Here's a fix. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
| * | | | | V4L/DVB (6144): Fix mux setup for composite sound on AverTV 307Stas Sergeev2007-09-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Right now the composite sound input doesn't work on AverTV 307 because of the wrong mux setup. The composite sound is routed via an external 4channel multiplexer controlled by GPIO, while the code assumes an internal multiplexer instead. Presumably this was a copy/paste error, and noone have ever tested the functionality. With the attached patch it works properly, which gives me an ability to finally watch the cable TV under linux. Signed-off-by: Stas Sergeev <stsp@aknet.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Nickolay V. Shmyrev <nshmyrev@yandex.ru> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
| * | | | | V4L/DVB (6095): ivtv: fix VIDIOC_G_ENC_INDEX flag handlingHans Verkuil2007-09-14
| |/ / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Due to a documentation bug (the type mask is 3 bits long, not 2) the wrong frame types were filled in: the B and P frame types were swapped. This bug also hid a second bug: when a capture is stopped a last entry is written into the pgm index buffer with internal type 0, denoting the end of the program. This entry wasn't ignored, instead it was accidentally returned to the caller as a P frame. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
* | | | | Correctly close old nfsd/lockd sockets.Neil Brown2007-09-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit aaf68cfbf2241d24d46583423f6bff5c47e088b3 added a bias to sk_inuse, so this test for an unused socket now fails. So no sockets get closed because they are old (they might get closed if the client closed them). This bug has existed since 2.6.21-rc1. Thanks to Wolfgang Walter for finding and reporting the bug. Cc: Wolfgang Walter <wolfgang.walter@studentenwerk.mhn.de> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | | Fix kernel buuild with (CONFIG_COMPAT && ! CONFIG_BLOCK)aherrman@arcor.de2007-09-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 02a5e0acb3cb85d80d0fe834e366d38a92bbaa22 ("BLOCK: Hide the contents of linux/bio.h if CONFIG_BLOCK=n") broke the kernel build for the CONFIG_COMPAT && !CONFIG_BLOCK case: CC fs/compat_ioctl.o In file included from include/linux/raid/md_k.h:19, from include/linux/raid/md.h:54, from fs/compat_ioctl.c:25: include/linux/raid/../../../drivers/md/dm-bio-list.h: In bio_list_: include/linux/raid/../../../drivers/md/dm-bio-list.h:40: error: dereferencing pointer to incomplete type include/linux/raid/../../../drivers/md/dm-bio-list.h: In bio_list_: include/linux/raid/../../../drivers/md/dm-bio-list.h:48: error: dereferencing pointer to incomplete type include/linux/raid/../../../drivers/md/dm-bio-list.h:51: error: dereferencing pointer to incomplete type include/linux/raid/../../../drivers/md/dm-bio-list.h: In bio_list_: include/linux/raid/../../../drivers/md/dm-bio-list.h:64: error: dereferencing pointer to incomplete type include/linux/raid/../../../drivers/md/dm-bio-list.h: In bio_list_merge_: include/linux/raid/../../../drivers/md/dm-bio-list.h:78: error: dereferencing pointer to incomplete type include/linux/raid/../../../drivers/md/dm-bio-list.h: In bio_list_: include/linux/raid/../../../drivers/md/dm-bio-list.h:90: error: dereferencing pointer to incomplete type include/linux/raid/../../../drivers/md/dm-bio-list.h:94: error: dereferencing pointer to incomplete type make[1]: *** [fs/compat_ioctl.o] Error 1 make: *** [fs] Error 2 Signed-off-by: Andreas Herrmann <aherrman@arcor.de> Acked-By: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | | shared tag queue barrier commentNick Piggin2007-09-14
|/ / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Should add some comments for the tag barriers (they won't be so important if we can switch over to the explicit _lock bitops, but for now we should make it clear). Jens' original patch said a barrier after the test_and_clear_bit was also required. I can't see why (and it would prevent the use of the _lock bitop). Acked-by: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> --
* | | | Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/usb-2.6Linus Torvalds2007-09-13
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/gregkh/usb-2.6: Revert "usb-storage: implement autosuspend" USB: disable autosuspend by default for non-hubs
| * | | | Revert "usb-storage: implement autosuspend"Greg Kroah-Hartman2007-09-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This reverts commit 8dfe4b14869fd185ca25ee88b02ada58a3005eaf. There are a number of issues still remaining in usb-storage autosuspend, so, to be safe, we need to revert this for now. Acked-by: Oliver Neukum <oneukum@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | | USB: disable autosuspend by default for non-hubsAlan Stern2007-09-13
| |/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch (as965) disables autosuspend by default for all USB devices other than hubs. We are seeing too many devices that can't suspend or resume properly, the blacklist is growing unreasonably quickly, and this sort of thing should be handled in userspace. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | | | Fix race with shared tag queue mapsJens Axboe2007-09-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There's a race condition in blk_queue_end_tag() for shared tag maps, users include stex (promise supertrak thingy) and qla2xxx. The former at least has reported bugs in this area, not sure why we haven't seen any for the latter. It could be because the window is narrow and that other conditions in the qla2xxx code hide this. It's a real bug, though, as the stex smp users can attest. We need to ensure two things - the tag bit clearing needs to happen AFTER we cleared the tag pointer, as the tag bit clearing/setting is what protects this map. Secondly, we need to ensure that the visibility of the tag pointer and tag bit clear are ordered properly. [ I removed the SMP barriers - "test_and_clear_bit()" already implies all the required barriers. -- Linus ] Also see http://bugzilla.kernel.org/show_bug.cgi?id=7842 Signed-off-by: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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