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* ACPI video: if no ACPI backlight support, use vendor driversThomas Renninger2008-11-076-43/+345
| | | | | | | | | | | | | | | | | | | | | | | | If an ACPI graphics device supports backlight brightness functions (cmp. with latest ACPI spec Appendix B), let the ACPI video driver control backlight and switch backlight control off in vendor specific ACPI drivers (asus_acpi, thinkpad_acpi, eeepc, fujitsu_laptop, msi_laptop, sony_laptop, acer-wmi). Currently it is possible to load above drivers and let both poke on the brightness HW registers, the video and vendor specific ACPI drivers -> bad. This patch provides the basic support to check for BIOS capabilities before driver loading time. Driver specific modifications are in separate follow up patches. "acpi_backlight=vendor" Prever vendor driver over ACPI driver for backlight. "acpi_backlight=video" (default) Prever ACPI driver over vendor driver for backlight. Signed-off-by: Thomas Renninger <trenn@suse.de> Acked-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* ACPI: video: Ignore devices that aren't present in hardwareThomas Renninger2008-11-073-1/+48
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is a reimplemention of commit 0119509c4fbc9adcef1472817fda295334612976 from Matthew Garrett <mjg59@srcf.ucam.org> This patch got removed because of a regression: ThinkPads with a Intel graphics card and an Integrated Graphics Device BIOS implementation stopped working. In fact, they only worked because the ACPI device of the discrete, the wrong one, got used (via int10). So ACPI functions were poking on the wrong hardware used which is a sever bug. The next patch provides support for above ThinkPads to be able to switch brightness via the legacy thinkpad_acpi driver and automatically detect when to use it. Original commit message from Matthew Garrett: Vendors often ship machines with a choice of integrated or discrete graphics, and use the same DSDT for both. As a result, the ACPI video module will locate devices that may not exist on this specific platform. Attempt to determine whether the device exists or not, and abort the device creation if it doesn't. http://bugzilla.kernel.org/show_bug.cgi?id=9614 Signed-off-by: Thomas Renninger <trenn@suse.de> Acked-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* Merge branch 'release' of ↵Linus Torvalds2008-11-0712-76/+106
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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] Reserve elfcorehdr memory in CONFIG_CRASH_DUMP [IA64] fix boot panic caused by offline CPUs [IA64] reorder Kconfig options to match x86 [IA64] Build VT-D iommu support into generic kernel [IA64] remove dead BIO_VMERGE_BOUNDARY definition [IA64] remove duplicated #include from pci-dma.c [IA64] use common header for software IO/TLB [IA64] fix the difference between node_mem_map and node_start_pfn [IA64] Add error_recovery_info field to SAL section header [IA64] Add UV watchlist support. [IA64] Simplify SGI uv vs. sn2 driver issues
| * [IA64] Reserve elfcorehdr memory in CONFIG_CRASH_DUMPJay Lan2008-11-071-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | IA64 kdump kernel failed to initialize /proc/vmcore in 2.6.28-rc2. A bug was introduced in this patch commit: d9a9855d0b06ca6d6cc92596fedcc03f8512e062 always reserve elfcore header memory in crash kernel The problem was that the call to reserve_elfcorehdr() should be placed in CONFIG_CRASH_DUMP rather than in CONFIG_CRASH_KERNEL, which does not exist. Signed-off-by: Jay Lan <jlan@sgi.com> Acked-by: Simon Hormon <horms@verge.net.au> Signed-off-by: Tony Luck <tony.luck@intel.com>
| * [IA64] fix boot panic caused by offline CPUsDoug Chapman2008-11-062-8/+28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes a regression introduced by 2c6e6db41f01b6b4eb98809350827c9678996698 "Minimize per_cpu reservations." That patch incorrectly used information about what CPUs are possible that was not yet initialized by ACPI. The end result was that per_cpu structures for offline CPUs were not initialized causing a NULL pointer reference. Since we cannot do the full acpi_boot_init() call any earlier, the simplest fix is to just parse the MADT for SAPIC entries early to find the CPU info. This should also allow for some cleanup of the code added by the "Minimize per_cpu reservations". This patch just fixes the regressions, the cleanup will come in a later patch. Signed-off-by: Doug Chapman <doug.chapman@hp.com> Signed-off-by: Alex Chiang <achiang@hp.com> CC: Robin Holt <holt@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
| * [IA64] reorder Kconfig options to match x86Bjorn Helgaas2008-11-061-9/+9
| | | | | | | | | | | | | | | | | | No functional change, just reorder some config options and update the "Power management and ACPI" label to match the defacto x86 standard. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
| * [IA64] Build VT-D iommu support into generic kernelTony Luck2008-11-041-0/+1
| | | | | | | | | | | | | | Now that all the ia64 mmu pieces are in the tree we can build support into the generic kernel. Signed-off-by: Tony Luck <tony.luck@intel.com>
| * [IA64] remove dead BIO_VMERGE_BOUNDARY definitionFUJITA Tomonori2008-11-041-24/+0
| | | | | | | | | | | | | | | | | | | | | | The block layer dropped the virtual merge feature (b8b3e16cfe6435d961f6aaebcfd52a1ff2a988c5). BIO_VMERGE_BOUNDARY definition is meaningless now (For IA64, BIO_VMERGE_BOUNDARY has been meaningless for a long time since IA64 disables the virtual merge feature). Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Tony Luck <tony.luck@intel.com>
| * [IA64] remove duplicated #include from pci-dma.cHuang Weiyi2008-11-041-2/+0
| | | | | | | | | | | | | | | | Removed duplicated #include <asm/machvec.h> and <linux/string.h> in arch/ia64/kernel/pci-dma.c. Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
| * [IA64] use common header for software IO/TLBJoerg Roedel2008-11-042-29/+2
| | | | | | | | | | | | | | | | | | Remove the swiotlb prototypes from the architecture code and use the common header file instead. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Tony Luck <tony.luck@intel.com>
| * [IA64] fix the difference between node_mem_map and node_start_pfnKen'ichi Ohmichi2008-11-042-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | makedumpfile[1] cannot run on ia64 discontigmem kernel, because the member node_mem_map of struct pgdat_list has invalid value. This patch fixes it. node_start_pfn shows the start pfn of each node, and node_mem_map should point 'struct page' of each node's node_start_pfn. On my machine, node0's node_start_pfn shows 0x400 and its node_mem_map points 0xa0007fffbf000000. This address is the same as vmem_map, so the node_mem_map points 'struct page' of pfn 0, even if its node_start_pfn shows 0x400. The cause is due to the round down of min_pfn in count_node_pages() and node0's node_mem_map points 'struct page' of inactive pfn (0x0). This patch fixes it. makedumpfile[1]: dump filtering command https://sourceforge.net/projects/makedumpfile/ Signed-off-by: Ken'ichi Ohmichi <oomichi@mxs.nes.nec.co.jp> Cc: Bernhard Walle <bwalle@suse.de> Cc: Jay Lan <jlan@sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Tony Luck <tony.luck@intel.com>
| * [IA64] Add error_recovery_info field to SAL section headerRuss Anderson2008-11-041-1/+14
| | | | | | | | | | | | | | | | Add the error_recovery_info field to the SAL section header, as defined in the SAL Spec. Signed-off-by: Russ Anderson <rja@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
| * [IA64] Add UV watchlist support.Russ Anderson2008-11-041-0/+45
| | | | | | | | | | | | | | This is used by SGI xp drivers (drivers/misc/sgi-xp). Signed-off-by: Russ Anderson <rja@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
| * [IA64] Simplify SGI uv vs. sn2 driver issuesRuss Anderson2008-11-041-0/+6
| | | | | | | | | | | | | | | | Add partition id, coherence id, and region size to UV to make life simpler for drivers shared between sn2 & uv. Signed-off-by: Russ Anderson <rja@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* | Merge branch 'for-linus' of ↵Linus Torvalds2008-11-074-22/+24
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: PCI: fix range check on mmapped sysfs resource files PCI: remove excess kernel-doc notation PCI: annotate return value of pci_ioremap_bar with __iomem PCI: fix VPD limit quirk for Broadcom 5708S
| * | PCI: fix range check on mmapped sysfs resource filesEd Swierk2008-11-031-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | pci_mmap_fits() returns the wrong answer if the sysfs resource file size is not a multiple of the page size. vm_end and vm_start are already page-aligned, so size - start < nr, causing mmap() to return EINVAL. Signed-off-by: Ed Swierk <eswierk@aristanetworks.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
| * | PCI: remove excess kernel-doc notationRandy Dunlap2008-11-031-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix pci/rom.c kernel-doc function notation: Warning(drivers/pci/rom.c:110): Excess function parameter or struct member 'return' description in 'pci_map_rom' Warning(drivers/pci/rom.c:177): Excess function parameter or struct member 'return' description in 'pci_map_rom_copy' Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
| * | PCI: annotate return value of pci_ioremap_bar with __iomemHarvey Harrison2008-11-031-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | Was missing from the initial patch. Acked-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
| * | PCI: fix VPD limit quirk for Broadcom 5708SYu Zhao2008-11-031-18/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | VPD quirks need to be called after the VPD capability is initialized. Since VPD initialization now runs after pci_fixup_header (due to the capabilities consolidation), VPD quirks should be done at pci_fixup_final stage correspondingly. Tested-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: Yu Zhao <yu.zhao@intel.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
* | | Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds2008-11-071-2/+2
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86, xen: fix use of pgd_page now that it really does return a page
| * | | x86, xen: fix use of pgd_page now that it really does return a pageJeremy Fitzhardinge2008-11-061-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: fix 32-bit Xen guest boot crash On 32-bit PAE, pud_page, for no good reason, didn't really return a struct page *. Since Jan Beulich's fix "i386/PAE: fix pud_page()", pud_page does return a struct page *. Because PAE has 3 pagetable levels, the pud level is folded into the pgd level, so pgd_page() is the same as pud_page(), and now returns a struct page *. Update the xen/mmu.c code which uses pgd_page() accordingly. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | | | Merge branch 'sched-fixes-for-linus' of ↵Linus Torvalds2008-11-072-4/+7
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: sched: fine-tune SD_SIBLING_INIT sched: fine-tune SD_MC_INIT sched: fix memory leak in a failure path sched: fix a bug in sched domain degenerate
| * | | | sched: fine-tune SD_SIBLING_INITIngo Molnar2008-11-071-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | fine-tune the HT sched-domains parameters as well. On a HT capable box, this increases lat_ctx performance from 23.87 usecs to 1.49 usecs: # before $ ./lat_ctx -s 0 2 "size=0k ovr=1.89 2 23.87 # after $ ./lat_ctx -s 0 2 "size=0k ovr=1.84 2 1.49 Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | | sched: fine-tune SD_MC_INITMike Galbraith2008-11-071-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Tune SD_MC_INIT the same way as SD_CPU_INIT: unset SD_BALANCE_NEWIDLE, and set SD_WAKE_BALANCE. This improves vmark by 5%: vmark 132102 125968 125497 messages/sec avg 127855.66 .984 vmark 139404 131719 131272 messages/sec avg 134131.66 1.033 Signed-off-by: Mike Galbraith <efault@gmx.de> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Ingo Molnar <mingo@elte.hu> # *DOCUMENTATION*
| * | | | sched: fix memory leak in a failure pathLi Zefan2008-11-071-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: fix rare memory leak in the sched-domains manual reconfiguration code In the failure path, rd is not attached to a sched domain, so it causes a leak. Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | | sched: fix a bug in sched domain degenerateLi Zefan2008-11-071-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: re-add incorrectly eliminated sched domain layers (1) on i386 with SCHED_SMT and SCHED_MC enabled # mount -t cgroup -o cpuset xxx /mnt # echo 0 > /mnt/cpuset.sched_load_balance # mkdir /mnt/0 # echo 0 > /mnt/0/cpuset.cpus # dmesg CPU0 attaching sched-domain: domain 0: span 0 level CPU groups: 0 (2) on i386 with SCHED_MC enabled but SCHED_SMT disabled # same with (1) # dmesg CPU0 attaching NULL sched-domain. The bug is that some sched domains may be skipped unintentionally when degenerating (optimizing) sched domains. Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | | | | Merge branch 'core-fixes-for-linus' of ↵Linus Torvalds2008-11-073-5/+16
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: xen: make sure stray alias mappings are gone before pinning vmap: cope with vm_unmap_aliases before vmalloc_init()
| * | | | | xen: make sure stray alias mappings are gone before pinningJeremy Fitzhardinge2008-11-072-5/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Xen requires that all mappings of pagetable pages are read-only, so that they can't be updated illegally. As a result, if a page is being turned into a pagetable page, we need to make sure all its mappings are RO. If the page had been used for ioremap or vmalloc, it may still have left over mappings as a result of not having been lazily unmapped. This change makes sure we explicitly mop them all up before pinning the page. Unlike aliases created by kmap, the there can be vmalloc aliases even for non-high pages, so we must do the flush unconditionally. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Cc: Linux Memory Management List <linux-mm@kvack.org> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | | | vmap: cope with vm_unmap_aliases before vmalloc_init()Jeremy Fitzhardinge2008-11-071-0/+7
| |/ / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Xen can end up calling vm_unmap_aliases() before vmalloc_init() has been called. In this case its safe to make it a simple no-op. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Cc: Linux Memory Management List <linux-mm@kvack.org> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | | | | trivial: MPT fusion - remove long dead codeAlan Cox2008-11-071-108/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This triggers false bug reports as it does a bogus kmalloc with locks held but is never really compiled into the kernel. Closes #8329 Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | | trivial: dmi_scan typoAlan Cox2008-11-071-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As we've lost our trivial maintainer for the moment I'll send this directly. Only touches a comment Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | | Merge branch 'for_linus' of ↵Linus Torvalds2008-11-077-30/+69
|\ \ \ \ \ | |/ / / / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: ext4: add checksum calculation when clearing UNINIT flag in ext4_new_inode ext4: Mark the buffer_heads as dirty and uptodate after prepare_write ext4: calculate journal credits correctly ext4: wait on all pending commits in ext4_sync_fs() ext4: Convert to host order before using the values. ext4: fix missing ext4_unlock_group in error path jbd2: deregister proc on failure in jbd2_journal_init_inode jbd2: don't give up looking for space so easily in __jbd2_log_wait_for_space jbd: don't give up looking for space so easily in __log_wait_for_space
| * | | | ext4: add checksum calculation when clearing UNINIT flag in ext4_new_inodeFrederic Bohe2008-11-071-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When initializing an uninitialized block group in ext4_new_inode(), its block group checksum must be re-calculated. This fixes a race when several threads try to allocate a new inode in an UNINIT'd group. There is some question whether we need to be initializing the block bitmap in ext4_new_inode() at all, but for now, if we are going to init the block group, let's eliminate the race. Signed-off-by: Frederic Bohe <frederic.bohe@bull.net> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| * | | | ext4: Mark the buffer_heads as dirty and uptodate after prepare_writeAneesh Kumar K.V2008-11-071-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We need to make sure we mark the buffer_heads as dirty and uptodate so that block_write_full_page write them correctly. This fixes mmap corruptions that can occur in low memory situations. Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| * | | | ext4: calculate journal credits correctlyTheodore Ts'o2008-11-061-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes a 2.6.27 regression which was introduced in commit a02908f1. We weren't passing the chunk parameter down to the two subections, ext4_indirect_trans_blocks() and ext4_ext_index_trans_blocks(), with the result that massively overestimate the amount of credits needed by ext4_da_writepages, especially in the non-extents case. This causes failures especially on /boot partitions, which tend to be small and non-extent using since GRUB doesn't handle extents. This patch fixes the bug reported by Joseph Fannin at: http://bugzilla.kernel.org/show_bug.cgi?id=11964 Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| * | | | ext4: wait on all pending commits in ext4_sync_fs()Theodore Ts'o2008-11-031-11/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In ext4_sync_fs, we only wait for a commit to finish if we started it, but there may be one already in progress which will not be synced. In the case of a data=ordered umount with pending long symlinks which are delayed due to a long list of other I/O on the backing block device, this causes the buffer associated with the long symlinks to not be moved to the inode dirty list in the second phase of fsync_super. Then, before they can be dirtied again, kjournald exits, seeing the UMOUNT flag and the dirty pages are never written to the backing block device, causing long symlink corruption and exposing new or previously freed block data to userspace. To ensure all commits are synced, we flush all journal commits now when sync_fs'ing ext4. Signed-off-by: Arthur Jones <ajones@riverbed.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Cc: Eric Sandeen <sandeen@redhat.com> Cc: <linux-ext4@vger.kernel.org>
| * | | | ext4: Convert to host order before using the values.Aneesh Kumar K.V2008-11-041-3/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use le16_to_cpu to read the s_reserved_gdt_blocks values from super block. Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| * | | | ext4: fix missing ext4_unlock_group in error pathAneesh Kumar K.V2008-11-041-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If we try to free a block which is already freed, the code was returning without first unlocking the group. Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| * | | | jbd2: deregister proc on failure in jbd2_journal_init_inodeSami Liedes2008-11-021-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | jbd2_journal_init_inode() does not call jbd2_stats_proc_exit() on all failure paths after calling jbd2_stats_proc_init(). This leaves dangling references to the fs in proc. This patch fixes a bug reported by Sami Leides at: http://bugzilla.kernel.org/show_bug.cgi?id=11493 Signed-off-by: Sami Liedes <sliedes@cc.hut.fi> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| * | | | jbd2: don't give up looking for space so easily in __jbd2_log_wait_for_spaceTheodore Ts'o2008-11-061-7/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 23f8b79e introducd a regression because it assumed that if there were no transactions ready to be checkpointed, that no progress could be made on making space available in the journal, and so the journal should be aborted. This assumption is false; it could be the case that simply calling jbd2_cleanup_journal_tail() will recover the necessary space, or, for small journals, the currently committing transaction could be responsible for chewing up the required space in the log, so we need to wait for the currently committing transaction to finish before trying to force a checkpoint operation. This patch fixes a bug reported by Mihai Harpau at: https://bugzilla.redhat.com/show_bug.cgi?id=469582 This patch fixes a bug reported by François Valenduc at: http://bugzilla.kernel.org/show_bug.cgi?id=11840 Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Cc: Duane Griffin <duaneg@dghda.com> Cc: Toshiyuki Okajima <toshi.okajima@jp.fujitsu.com>
| * | | | jbd: don't give up looking for space so easily in __log_wait_for_spaceTheodore Ts'o2008-11-061-7/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit be07c4ed introducd a regression because it assumed that if there were no transactions ready to be checkpointed, that no progress could be made on making space available in the journal, and so the journal should be aborted. This assumption is false; it could be the case that simply calling cleanup_journal_tail() will recover the necessary space, or, for small journals, the currently committing transaction could be responsible for chewing up the required space in the log, so we need to wait for the currently committing transaction to finish before trying to force a checkpoint operation. This patch fixes the bug reported by Meelis Roos at: http://bugzilla.kernel.org/show_bug.cgi?id=11937 Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Cc: Duane Griffin <duaneg@dghda.com> Cc: Toshiyuki Okajima <toshi.okajima@jp.fujitsu.com>
* | | | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds2008-11-0616-28/+97
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: net: Fix recursive descent in __scm_destroy(). iwl3945: fix deadlock on suspend iwl3945: do not send scan command if channel count zero iwl3945: clear scanning bits upon failure ath5k: correct handling of rx status fields zd1211rw: Add 2 device IDs Fix logic error in rfkill_check_duplicity iwlagn: avoid sleep in softirq context iwlwifi: clear scanning bits upon failure Revert "ath5k: honor FIF_BCN_PRBRESP_PROMISC in STA mode" tcp: Fix recvmsg MSG_PEEK influence of blocking behavior. netfilter: netns ct: walk netns list under RTNL ipv6: fix run pending DAD when interface becomes ready net/9p: fix printk format warnings net: fix packet socket delivery in rx irq handler xfrm: Have af-specific init_tempsel() initialize family field of temporary selector
| * \ \ \ \ Merge branch 'master' of ↵David S. Miller2008-11-067-12/+40
| |\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6
| | * | | | | iwl3945: fix deadlock on suspendZhu, Yi2008-11-061-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes iwl3945 deadlock during suspend by moving notify_mac out of iwl3945 mutex. This is a portion of the same fix for iwlwifi by Tomas. Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| | * | | | | iwl3945: do not send scan command if channel count zeroReinette Chatre2008-11-061-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Do not send scan command if no channels to scan. This avoids a Microcode error as reported in: http://www.intellinuxwireless.org/bugzilla/show_bug.cgi?id=1650 http://bugzilla.kernel.org/show_bug.cgi?id=11806 http://marc.info/?l=linux-wireless&m=122437145211886&w=2 Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| | * | | | | iwl3945: clear scanning bits upon failureMohamed Abbas2008-11-061-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch ensures we clear any scan status bit when an error occurs while sending the scan command. It is the implementation of patch: "iwlwifi: clear scanning bits upon failure" for iwl3945. Signed-off-by: Mohamed Abbas <mohamed.abbas@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| | * | | | | ath5k: correct handling of rx status fieldsBob Copeland2008-11-061-8/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ath5k_rx_status fields rs_antenna and rs_more are u8s, but we were setting them with bitwise ANDs of 32-bit values. As a consequence, jumbo frames would not be discarded as intended. Then, because the hw rate value of such frames is zero, and, since "ath5k: rates cleanup", we do not fall back to the basic rate, such packets would trigger the following WARN_ON: ------------[ cut here ]------------ WARNING: at net/mac80211/rx.c:2192 __ieee80211_rx+0x4d/0x57e [mac80211]() Modules linked in: ath5k af_packet sha256_generic aes_i586 aes_generic cbc loop i915 drm binfmt_misc acpi_cpufreq fan container nls_utf8 hfsplus dm_crypt dm_mod kvm_intel kvm fuse sbp2 snd_hda_intel snd_pcm_oss snd_pcm snd_mixer_oss snd_seq_dummy snd_seq_oss arc4 joydev hid_apple ecb snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer snd_seq_device usbhid appletouch mac80211 sky2 snd ehci_hcd ohci1394 bitrev crc32 sr_mod cdrom rtc sg uhci_hcd snd_page_alloc cfg80211 ieee1394 thermal ac battery processor button evdev unix [last unloaded: ath5k] Pid: 0, comm: swapper Tainted: G W 2.6.28-rc2-wl #14 Call Trace: [<c0123d1e>] warn_on_slowpath+0x41/0x5b [<c012005d>] ? sched_debug_show+0x31e/0x9c6 [<c012489f>] ? vprintk+0x369/0x389 [<c0309539>] ? _spin_unlock_irqrestore+0x54/0x58 [<c011cd8f>] ? try_to_wake_up+0x14f/0x15a [<f81918cb>] __ieee80211_rx+0x4d/0x57e [mac80211] [<f828872a>] ath5k_tasklet_rx+0x5a1/0x5e4 [ath5k] [<c013b9cd>] ? clockevents_program_event+0xd4/0xe3 [<c01283a9>] tasklet_action+0x94/0xfd [<c0127d19>] __do_softirq+0x8c/0x13e [<c0127e04>] do_softirq+0x39/0x55 [<c0128082>] irq_exit+0x46/0x85 [<c010576c>] do_IRQ+0x9a/0xb2 [<c010461c>] common_interrupt+0x28/0x30 [<f80e934a>] ? acpi_idle_enter_bm+0x2ad/0x31b [processor] [<c02976bf>] cpuidle_idle_call+0x65/0x9a [<c010262c>] cpu_idle+0x76/0xa6 [<c02fb402>] rest_init+0x62/0x64 Signed-off-by: Bob Copeland <me@bobcopeland.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| | * | | | | zd1211rw: Add 2 device IDsDaniel Drake2008-11-061-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 07fa/1196 Bewan BWIFI-USB54AR: Tested by night1308, this device is a ZD1211B with an AL2230S radio. 0ace/b215 HP 802.11abg: Tested by Robert Philippe Signed-off-by: John W. Linville <linville@tuxdriver.com>
| | * | | | | Fix logic error in rfkill_check_duplicityJonathan McDowell2008-11-061-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | > I'll have a prod at why the [hso] rfkill stuff isn't working next Ok, I believe this is due to the addition of rfkill_check_duplicity in rfkill and the fact that test_bit actually returns a negative value rather than the postive one expected (which is of course equally true). So when the second WLAN device (the hso device, with the EEE PC WLAN being the first) comes along rfkill_check_duplicity returns a negative value and so rfkill_register returns an error. Patch below fixes this for me. Signed-Off-By: Jonathan McDowell <noodles@earth.li> Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| | * | | | | iwlagn: avoid sleep in softirq contextJohn W. Linville2008-11-061-1/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | __ieee80211_tasklet_handler -> __ieee80211_rx -> __ieee80211_rx_handle_packet -> ieee80211_invoke_rx_handlers -> ieee80211_rx_h_decrypt -> ieee80211_crypto_tkip_decrypt -> ieee80211_tkip_decrypt_data -> iwl4965_mac_update_tkip_key -> iwl_scan_cancel_timeout -> msleep Ooops! Avoid the sleep by changing iwl_scan_cancel_timeout with iwl_scan_cancel and simply returning on failure if the scan persists. This will cause hardware decryption to fail and we'll handle a few more frames with software decryption. Signed-off-by: John W. Linville <linville@tuxdriver.com>
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