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* x86: Documentation/i386/IO-APIC.txt: fix descriptionNick Andrew2008-03-26
| | | | | | | | | The description of the interrupt routing doesn't match the (nice) diagram. Signed-off-by: Nick Andrew <nick@nick-andrew.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* Merge branch 'slab-linus' of ↵Linus Torvalds2008-03-26
|\ | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/christoph/vm * 'slab-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/christoph/vm: slab: fix cache_cache bootstrap in kmem_cache_init() count_partial() is not used if !SLUB_DEBUG and !CONFIG_SLABINFO
| * slab: fix cache_cache bootstrap in kmem_cache_init()Daniel Yeisley2008-03-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 556a169dab38b5100df6f4a45b655dddd3db94c1 ("slab: fix bootstrap on memoryless node") introduced bootstrap-time cache_cache list3s for all nodes but forgot that initkmem_list3 needs to be accessed by [somevalue + node]. This patch fixes list_add() corruption in mm/slab.c seen on the ES7000. Cc: Mel Gorman <mel@csn.ul.ie> Cc: Olaf Hering <olaf@aepfle.de> Cc: Christoph Lameter <clameter@sgi.com> Signed-off-by: Dan Yeisley <dan.yeisley@unisys.com> Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: Christoph Lameter <clameter@sgi.com>
| * count_partial() is not used if !SLUB_DEBUG and !CONFIG_SLABINFOChristoph Lameter2008-03-26
| | | | | | | | | | | | | | | | | | Avoid warnings about unused functions if neither SLUB_DEBUG nor CONFIG_SLABINFO is defined. This patch will be reversed when slab defrag is merged since slab defrag requires count_partial() to determine the fragmentation status of slab caches. Signed-off-by: Christoph Lameter <clameter@sgi.com>
* | Merge branch 'master' of ↵Linus Torvalds2008-03-26
|\ \ | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tglx/linux-2.6-hrt * 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/tglx/linux-2.6-hrt: NOHZ: reevaluate idle sleep length after add_timer_on() clocksource: revert: use init_timer_deferrable for clocksource_watchdog
| * | NOHZ: reevaluate idle sleep length after add_timer_on()Thomas Gleixner2008-03-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | add_timer_on() can add a timer on a CPU which is currently in a long idle sleep, but the timer wheel is not reevaluated by the nohz code on that CPU. So a timer can be delayed for quite a long time. This triggered a false positive in the clocksource watchdog code. To avoid this we need to wake up the idle CPU and enforce the reevaluation of the timer wheel for the next timer event. Add a function, which checks a given CPU for idle state, marks the idle task with NEED_RESCHED and sends a reschedule IPI to notify the other CPU of the change in the timer wheel. Call this function from add_timer_on(). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: stable@kernel.org -- include/linux/sched.h | 6 ++++++ kernel/sched.c | 43 +++++++++++++++++++++++++++++++++++++++++++ kernel/timer.c | 10 +++++++++- 3 files changed, 58 insertions(+), 1 deletion(-)
| * | clocksource: revert: use init_timer_deferrable for clocksource_watchdogThomas Gleixner2008-03-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Revert commit 1077f5a917b7c630231037826b344b2f7f5b903f Author: Parag Warudkar <parag.warudkar@gmail.com> Date: Wed Jan 30 13:30:01 2008 +0100 clocksource.c: use init_timer_deferrable for clocksource_watchdog clocksource_watchdog can use a deferrable timer - reduces wakeups from idle per second. The watchdog timer needs to run with the specified interval. Otherwise it will miss the possible wrap of the watchdog clocksource. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: stable@kernel.org
* | | Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-blockLinus Torvalds2008-03-26
|\ \ \ | | | | | | | | | | | | | | | | | | | | * 'for-linus' of git://git.kernel.dk/linux-2.6-block: relay: set an spd_release() hook for splice set relay file can not be read by pread(2)
| * | | relay: set an spd_release() hook for spliceJens Axboe2008-03-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | relay doesn't reference the pages it adds, however we need a non-NULL hook or splice_to_pipe() can oops. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
| * | | set relay file can not be read by pread(2)Lai Jiangshan2008-03-26
| | |/ | |/| | | | | | | | | | | | | | | | | | | I found that relay files can be read by pread(2). I fix it, for relay files are not capable of seeking. Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* | | SVCRDMA: Check num_sge when setting LAST_CTXT bitTom Tucker2008-03-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The RDMACTXT_F_LAST_CTXT bit was getting set incorrectly when the last chunk in the read-list spanned multiple pages. This resulted in a kernel panic when the wrong context was used to build the RPC iovec page list. RDMA_READ is used to fetch RPC data from the client for NFS_WRITE requests. A scatter-gather is used to map the advertised client side buffer to the server-side iovec and associated page list. WR contexts are used to convey which scatter-gather entries are handled by each WR. When the write data is large, a single RPC may require multiple RDMA_READ requests so the contexts for a single RPC are chained together in a linked list. The last context in this list is marked with a bit RDMACTXT_F_LAST_CTXT so that when this WR completes, the CQ handler code can enqueue the RPC for processing. The code in rdma_read_xdr was setting this bit on the last two contexts on this list when the last read-list chunk spanned multiple pages. This caused the svc_rdma_recvfrom logic to incorrectly build the RPC and caused the kernel to crash because the second-to-last context doesn't contain the iovec page list. Modified the condition that sets this bit so that it correctly detects the last context for the RPC. Signed-off-by: Tom Tucker <tom@opengridcomputing.com> Tested-by: Roland Dreier <rolandd@cisco.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | Revert "PCI: remove transparent bridge sizing"Linus Torvalds2008-03-26
|/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This reverts commit 8fa5913d54f3b1e09948e6a0db34da887e05ff1f, which caused various interesting problems for people, including wrong resource allocations. See for example bugzilla entry "2.6.25-rc2: ohci1394 problem (MMIO broken)" at http://bugzilla.kernel.org/show_bug.cgi?id=10080 And Gary Hade says: "The same change had also exposed an issue reported by Paul Martin that has been causing an Oops while hotplugging ThinkPads to a ThinkPad Dock II. See http://lkml.org/lkml/2008/2/19/405 http://bugzilla.kernel.org/show_bug.cgi?id=9961 I have a fix for the ThinkPad docking Oops but if the issue being discussed here is caused by the transparent bridge sizing removal change I totally agree that it should be reverted." The transparent bridge sizing removal change was motivated by insufficient PCI memory resource for a transparent bridge window that was being created as a result of expansion ROM(s) being included in the transparent bridge sizing calculations. A later "PCI: Remove default PCI expansion ROM memory allocation" change ( re: http://lkml.org/lkml/2007/12/11/361 ) removes the expansion ROM(s) from the transparent bridge sizing calculations which actually resolves the original issue in a different manner. So, even if the "PCI: remove transparent bridge sizing" is not problematic it is no longer needed anyway." Identified-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Tested-by: Thomas Meyer <thomas@m3y3r.de> Acked-by: Gary Hade <garyhade@us.ibm.com> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: Stefan Richter <stefanr@s5r6.in-berlin.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | Linux 2.6.25-rc7v2.6.25-rc7Linus Torvalds2008-03-25
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* | ACPI: fix Medion _PRT quirk (use "ISA_", not "ISA")Bjorn Helgaas2008-03-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes the builtin RTL8139 NIC on the Medion MD9580-F laptop. The BIOS reports the interrupt routing incorrectly. I recently added a quirk to work around this, and this patch fixes a typo in the quirk. We pad every ACPI pathname component to four characters, so ".ISA." will never match anything. We need ".ISA_." instead. Thank you Johann-Nikolaus Andreae <johann-nikolaus.andreae@nacs.de> for patiently testing this patch. See http://bugzilla.kernel.org/show_bug.cgi?id=4773 Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | Merge branch 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6Linus Torvalds2008-03-25
|\ \ | | | | | | | | | | | | | | | | | | | | | * 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6: i2c: Fix docbook problem ASoC/TLV320AIC3X: Stop I2C driver ID abuse i2c-omap: Fix unhandled fault i2c-bfin-twi: Disable BF54x support for now
| * | i2c: Fix docbook problemRandy Dunlap2008-03-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Sometimes kernel-doc and xmlto conspire to create output that is invalid and causes problems. Until I know a real/better solution, change the source code that causes this. If anyone has better fixes or can just explain what is happening here, that would be great. xmlto: input does not validate (status 1) mmotm-2008-0314-1449/Documentation/DocBook/kernel-api.xml:71468: parser error : Opening and ending tag mismatch: programlisting line 71464 and para </para><para> ^ mmotm-2008-0314-1449/Documentation/DocBook/kernel-api.xml:71480: parser error : Opening and ending tag mismatch: para line 71473 and programlisting </programlisting></informalexample> ^ make[1]: *** [Documentation/DocBook/kernel-api.html] Error 1 Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
| * | ASoC/TLV320AIC3X: Stop I2C driver ID abuseJean Delvare2008-03-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Please stop using random I2C driver IDs. Also removed a pointless initialization to 0 of a static struct member. Acked-by: Takashi Iwai <tiwai@suse.de> Cc: Jarkko Nikula <jarkko.nikula@nokia.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
| * | i2c-omap: Fix unhandled faultTony Lindgren2008-03-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If an I2C interrupt happens between disabling interface clock and functional clock, the interrupt handler will produce an external abort on non-linefetch error when trying to access driver registers while interface clock is disabled. This patch fixes the problem by saving and disabling i2c-omap interrupt before turning off the clocks. Also disable functional clock before the interface clock as suggested by Paul Walmsley. Patch also renames enable/disable_clocks functions to unidle/idle functions. Note that the driver is currently not taking advantage of the idle interrupts. To use the idle interrupts, driver would have to enable interface clock based on the idle interrupt and dev->idle flag. This patch has been tested in linux-omap tree with various omaps. Cc: Paul Walmsley <paul@pwsan.com> Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
| * | i2c-bfin-twi: Disable BF54x support for nowBryan Wu2008-03-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | The i2c-bfin-twi driver doesn't support BF54x for now due to missing header definitions causing the build to fail. Exclude it for now, it will be enabled again later. Signed-off-by: Bryan Wu <cooloney@kernel.org> Signed-off-by: Jean Delvare <khali@linux-fr.org>
* | | Merge branch 'for-linus' of ↵Linus Torvalds2008-03-25
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm: KVM: MMU: Fix memory leak on guest demand faults KVM: VMX: convert init_rmode_tss() to slots_lock KVM: MMU: handle page removal with shadow mapping KVM: MMU: Fix is_rmap_pte() with io ptes KVM: VMX: Restore tss even on x86_64
| * | | KVM: MMU: Fix memory leak on guest demand faultsAvi Kivity2008-03-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | While backporting 72dc67a69690288538142df73a7e3ac66fea68dc, a gfn_to_page() call was duplicated instead of moved (due to an unrelated patch not being present in mainline). This caused a page reference leak, resulting in a fairly massive memory leak. Fix by removing the extraneous gfn_to_page() call. Signed-off-by: Avi Kivity <avi@qumranet.com>
| * | | KVM: VMX: convert init_rmode_tss() to slots_lockMarcelo Tosatti2008-03-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | init_rmode_tss was forgotten during the conversion from mmap_sem to slots_lock. INFO: task qemu-system-x86:3748 blocked for more than 120 seconds. Call Trace: [<ffffffff8053d100>] __down_read+0x86/0x9e [<ffffffff8053fb43>] do_page_fault+0x346/0x78e [<ffffffff8053d235>] trace_hardirqs_on_thunk+0x35/0x3a [<ffffffff8053dcad>] error_exit+0x0/0xa9 [<ffffffff8035a7a7>] copy_user_generic_string+0x17/0x40 [<ffffffff88099a8a>] :kvm:kvm_write_guest_page+0x3e/0x5f [<ffffffff880b661a>] :kvm_intel:init_rmode_tss+0xa7/0xf9 [<ffffffff880b7d7e>] :kvm_intel:vmx_vcpu_reset+0x10/0x38a [<ffffffff8809b9a5>] :kvm:kvm_arch_vcpu_setup+0x20/0x53 [<ffffffff8809a1e4>] :kvm:kvm_vm_ioctl+0xad/0x1cf [<ffffffff80249dea>] __lock_acquire+0x4f7/0xc28 [<ffffffff8028fad9>] vfs_ioctl+0x21/0x6b [<ffffffff8028fd75>] do_vfs_ioctl+0x252/0x26b [<ffffffff8028fdca>] sys_ioctl+0x3c/0x5e [<ffffffff8020b01b>] system_call_after_swapgs+0x7b/0x80 Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
| * | | KVM: MMU: handle page removal with shadow mappingMarcelo Tosatti2008-03-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Do not assume that a shadow mapping will always point to the same host frame number. Fixes crash with madvise(MADV_DONTNEED). [avi: move after first printk(), add another printk()] Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
| * | | KVM: MMU: Fix is_rmap_pte() with io ptesAvi Kivity2008-03-25
| | | | | | | | | | | | | | | | | | | | | | | | is_rmap_pte() doesn't take into account io ptes, which have the avail bit set. Signed-off-by: Avi Kivity <avi@qumranet.com>
| * | | KVM: VMX: Restore tss even on x86_64Avi Kivity2008-03-25
| | |/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The vmx hardware state restore restores the tss selector and base address, but not its length. Usually, this does not matter since most of the tss contents is within the default length of 0x67. However, if a process is using ioperm() to grant itself I/O port permissions, an additional bitmap within the tss, but outside the default length is consulted. The effect is that the process will receive a SIGSEGV instead of transparently accessing the port. Fix by restoring the tss length. Note that i386 had this working already. Closes bugzilla 10246. Signed-off-by: Avi Kivity <avi@qumranet.com>
* | | Merge branch 'for-linus' of ↵Linus Torvalds2008-03-25
|\ \ \ | |/ / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: [PATCH] get stack footprint of pathname resolution back to relative sanity [PATCH] double iput() on failure exit in hugetlb [PATCH] double dput() on failure exit in tiny-shmem [PATCH] fix up new filp allocators [PATCH] check for null vfsmount in dentry_open() [PATCH] reiserfs: eliminate private use of struct file in xattr [PATCH] sanitize hppfs hppfs pass vfsmount to dentry_open() [PATCH] restore export of do_kern_mount()
| * | [PATCH] get stack footprint of pathname resolution back to relative sanityAl Viro2008-03-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Somebody had put struct nameidata in stack frame of link_path_walk(). Unfortunately, there are certain realities to deal with: * It's in the middle of recursion. Depth is equal to the nesting depth of symlinks, i.e. up to 8. * struct namiedata is, even if one discards the intent junk, at least 12 pointers + 5 ints. * moreover, adding a stack frame is not free in that situation. * there are fs methods called on top of that, and they also have stack footprint. * kernel stack is not infinite. The thing is, even if one chooses to deal with -ESTALE that way (and it's one hell of an overkill), the only thing that needs to be preserved is vfsmount + dentry, not the entire struct nameidata. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | [PATCH] double iput() on failure exit in hugetlbAl Viro2008-03-19
| | | | | | | | | | | | | | | | | | once we'd done d_instantiate(), we should only do dput(). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | [PATCH] double dput() on failure exit in tiny-shmemAl Viro2008-03-19
| | | | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | [PATCH] fix up new filp allocatorsDave Hansen2008-03-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some new uses of get_empty_filp() have crept in; switched to alloc_file() to make sure that pieces of initialization won't be missing. We really need to kill get_empty_filp(). [AV] fixed dentry leak on failure exit in anon_inode_getfd() Cc: Erez Zadok <ezk@cs.sunysb.edu> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Cc: "J Bruce Fields" <bfields@fieldses.org> Acked-by: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Dave Hansen <haveblue@us.ibm.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | [PATCH] check for null vfsmount in dentry_open()Christoph Hellwig2008-03-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make sure no-one calls dentry_open with a NULL vfsmount argument and crap out with a stacktrace otherwise. A NULL file->f_vfsmnt has always been problematic, but with the per-mount r/o tracking we can't accept anymore at all. [AV] the last place that passed NULL had been eliminated by the previous patch (reiserfs xattr stuff) Acked-by: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Dave Hansen <haveblue@us.ibm.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | [PATCH] reiserfs: eliminate private use of struct file in xattrJeff Mahoney2008-03-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | After several posts and bug reports regarding interaction with the NULL nameidata, here's a patch to clean up the mess with struct file in the reiserfs xattr code. As observed in several of the posts, there's really no need for struct file to exist in the xattr code. It was really only passed around due to the f_op->readdir() and a_ops->{prepare,commit}_write prototypes requiring it. reiserfs_prepare_write() and reiserfs_commit_write() don't actually use the struct file passed to it, and the xattr code uses a private version of reiserfs_readdir() to enumerate the xattr directories. Signed-off-by: Jeff Mahoney <jeffm@suse.com> Acked-by: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Dave Hansen <haveblue@us.ibm.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | [PATCH] sanitize hppfsAl Viro2008-03-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * hppfs_iget() and its users are racy; there's no need to pollute icache anyway, new_inode() works fine and is safe, unlike the current kludges (these relied on overwriting ->i_ino before another iget_locked() gets to that one - and did it after unlocking). * merge hppfs_iget()/init_inode()/hppfs_read_inode(), while we are at it. * to pass proper vfsmount to dentry_open() store the reference in hppfs superblock. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> --
| * | hppfs pass vfsmount to dentry_open()Dave Hansen2008-03-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Here's patch for hppfs that uses vfs_kern_mount to make sure it always has a procfs instance and passed the vfsmount on through the inode private data. Also fixes a procfs file_system_type leak for every attempted hppfs mount. [ jdike - gave this file a style workover, plus deleted hppfs_dentry_ops ] Acked-by: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jeff Dike <jdike@linux.intel.com> Signed-off-by: Dave Hansen <haveblue@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | [PATCH] restore export of do_kern_mount()Al Viro2008-03-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | vfs_kern_mount() requires having a reference to fs type, which makes it impossible for module to create procfs, etc. private mount. Open-coding is not an option, since e.g. put_filesystem() is _not_ exported, and for a good reason. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6Linus Torvalds2008-03-25
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: USB: Fix cut-and-paste error in rtl8150.c USB: ehci: stop vt6212 bus hogging USB: sierra: add another device id USB: sierra: dma fixes USB: add support for Motorola ROKR Z6 cellphone in mass storage mode USB: isd200: fix memory leak in isd200_get_inquiry_data USB: pl2303: another product ID USB: new quirk flag to avoid Set-Interface USB: fix gadgetfs class request delegation
| * | | USB: Fix cut-and-paste error in rtl8150.cRobert P. J. Day2008-03-25
| | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | USB: ehci: stop vt6212 bus hoggingRene Herman2008-03-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The VIA VT6212 defaults to only waiting 1us between passes over EHCI's async ring, which hammers PCI badly ... and by preventing other devices from accessing the bus, causes problems like drops in IDE throughput, a problem that's been bugging users of those chips for several years. A (partial) datasheet for this chip eventually turned up, letting us see how to make it use a VIA-specific register to switch over to the the normal 10us value instead, as suggested by the EHCI specification Solution noted by Lev A. Melnikovsky. It's not clear whether this register exists on other VIA chips; we know that it's ineffective on the vt8235. So this patch only applies to chips that seem to be incarnations of the (discrete) vt6212. Signed-off-by: Rene Herman <rene.herman@gmail.com> Tested-by: Lev A. Melnikovsky <melnikovsky@mail.ru> Tested-by: Alessandro Suardi <alessandro.suardi@gmail.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | USB: sierra: add another device idKevin Lloyd2008-03-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add support for the MC8775 device to the sierra driver. Signed-off-by: Kevin Lloyd <klloyd@sierrawireless.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | USB: sierra: dma fixesOliver Neukum2008-03-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | while I was adding autosuspend to that driver I noticed a few issues. You were having DMAed buffers as a part of a structure. This will fail on platforms that are not DMA-coherent (arm, sparc, ppc, ...) Please test this patch to fix it. Signed-off-by: Kevin Lloyd <klloyd@sierrawireless.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | USB: add support for Motorola ROKR Z6 cellphone in mass storage modeConstantin Baranov2008-03-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Motorola ROKR Z6 cellphone has bugs in its USB, so it is impossible to use it as mass storage. Patch describes new "unusual" USB device for it with FIX_INQUIRY and FIX_CAPACITY flags and new BULK_IGNORE_TAG flag. Last flag relaxes check for equality of bcs->Tag and us->tag in usb_stor_Bulk_transport routine. Signed-off-by: Constantin Baranov <const@tltsu.ru> Signed-off-by: Matthew Dharm <mdharm-usb@one-eyed-alien.net> Signed-off-by: Daniel Drake <dsd@gentoo.org> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | USB: isd200: fix memory leak in isd200_get_inquiry_dataBoaz Harrosh2008-03-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If the inquiry fails then the info structure on us->extra was not freed. Signed-off-by: Boaz Harrosh <bharrosh@panasas.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Cc: James Bottomley <James.Bottomley@HansenPartnership.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | USB: pl2303: another product IDMax Arnold2008-03-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Device like this http://aldiga.com/english/A-100-USB-EDGE10.htm contains Prolific 2303 chip. Actually their site a bit outdated - I have AlDiga AL-11U GSM/GPRS/EDGE modem and it works with pl2303 module after adding corresponding product ID. By default modem uses baud rate 460800. GSM chipset - SIMCom SIM600, quad band 850/900/1800/1900 MHz Device info: T: Bus=04 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 5 Spd=12 MxCh= 0 D: Ver= 1.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1 P: Vendor=067b ProdID=0611 Rev= 0.00 C:* #Ifs= 1 Cfg#= 1 Atr=a0 MxPwr=500mA I:* If#= 0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=pl2303 E: Ad=81(I) Atr=03(Int.) MxPS= 10 Ivl=1ms E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms E: Ad=83(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms From: Max Arnold <lwarxx@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | USB: new quirk flag to avoid Set-InterfaceAlan Stern2008-03-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch (as1057) fixes a problem with the X-Rite/Gretag-Macbeth Eye-One Pro display colorimeter; the device crashes when it receives a Set-Interface request. A new quirk (USB_QUIRK_NO_SET_INTF) is introduced and a quirks entry is created for this device. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | USB: fix gadgetfs class request delegationRoy Hashimoto2008-03-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | gadgetfs (drivers/usb/gadget/inode.c) was not delegating all non-device requests to userspace. This patch makes the handling of all request cases consistent. Signed-off-by: Roy Hashimoto <hashimot@alumni.caltech.edu> Acked-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-2.6Linus Torvalds2008-03-25
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-2.6: driver core: debug for bad dev_attr_show() return value. UIO: add pgprot_noncached() to UIO mmap code
| * | | | driver core: debug for bad dev_attr_show() return value.Andrew Morton2008-03-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Try to find the culprit who caused http://bugzilla.kernel.org/show_bug.cgi?id=10150 Cc: <balajirrao@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | | UIO: add pgprot_noncached() to UIO mmap codeJean-Samuel Chenard2008-03-25
| |/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Mapping of physical memory in UIO needs pgprot_noncached() to ensure that IO memory is not cached. Without pgprot_noncached(), it (accidentally) works on x86 and arm, but fails on PPC. Signed-off-by: Jean-Samuel Chenard <jsamch@gmail.com> Signed-off-by: Hans J Koch <hjk@linutronix.de> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | | | PCI: revert "pcie: utilize pcie transaction pending bit"Andrew Morton2008-03-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Revert as it is reported to cause problems for people. commit 4348a2dc49f9baecd34a9b0904245488c6189398 Author: Shaohua Li <shaohua.li@intel.com> Date: Wed Oct 24 10:45:08 2007 +0800 pcie: utilize pcie transaction pending bit PCIE has a mechanism to wait for Non-Posted request to complete. I think pci_disable_device is a good place to do this. Signed-off-by: Shaohua Li <shaohua.li@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Due to the regression reported at http://bugzilla.kernel.org/show_bug.cgi?id=10065 Cc: Shaohua Li <shaohua.li@intel.com> Cc: Soeren Sonnenburg <kernel@nn7.de> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | | | PCI: iova: lockdep false alarm fixMark Gross2008-03-25
|/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | lockdep goes off on the iova copy_reserved_iova() because it and a function it calls grabs locks in the from, and the to of the copy operation. The function grab locks of the same lock classes triggering the warning. The first lock grabbed is for the constant reserved areas that is never accessed after early boot. Technically you could do without grabbing the locks for the "from" structure its copying reserved areas from. But dropping the from locks to me looks wrong, even though it would be ok. The affected code only runs in early boot as its setting up the DMAR engines. This patch gives the reserved_ioval_list locks special lockdep classes. Signed-off-by: Mark Gross <mgross@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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