- 11 Dec, 2007 15 commits
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git://ftp.linux-mips.org/pub/scm/upstream-linusLinus Torvalds authored
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: [MIPS] Malta: Enable tickless and highres timers. [MIPS] Bigsur: Enable tickless and and highres timers. qemu: do not enable IP7 blindly [MIPS] Alchemy: Fix Au1x SD controller IRQ [MIPS] Don't byteswap writes to display when running bigendian
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Eric W. Biederman authored
Ultimately to implement /proc perfectly we need an implementation of d_revalidate because files and directories can be removed behind the back of the VFS, and d_revalidate is the only way we can let the VFS know that this has happened. Unfortunately the linux VFS can not cope with anything in the path to a mount point going away. So a proper d_revalidate method that calls d_drop also needs to call have_submounts which is moderately expensive, so you really don't want a d_revalidate method that unconditionally calls it, but instead only calls it when the backing object has really gone away. proc generic entries only disappear on module_unload (when not counting the fledgling network namespace) so it is quite rare that we actually encounter that case and has not actually caused us real world trouble yet. So until we get a proper test for keeping dentries in the dcache fix the current d_revalidate method by completely removing it. This returns us to the current status quo. So with CONFIG_NETNS=n things should look as they have always looked. For CONFIG_NETNS=y things work most of the time but there are a few rare corner cases that don't behave properly. As the network namespace is barely present in 2.6.24 this should not be a problem. Signed-off-by:
Eric W. Biederman <ebiederm@xmission.com> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Cc: Pavel Emelyanov <xemul@openvz.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Cc: "Denis V. Lunev" <den@openvz.org> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Rini van Zetten authored
We have a wifi module connected to the spi bus and got sometimes FIFO overrun errors on the spi bus. After some investigation i found that the driver loads the TCR (transmit count) register before the RCR (receive count). When the transfer list is not empty the atmel_spi_next_message is called while tx and rx are enabled. As soon as the TCR is loaded, hardware starts transfer and causes a rx fifo overrun because the RCR is not loaded yet. Load the RCR before the TCR. After this patch the fifo overrun disapears at out setup. Signed-off-by:
Haavard Skinnemoen <hskinnemoen@atmel.com> Signed-off-by:
Rini van Zetten <rini@arvoo.nl> Signed-off-by:
David Brownell <dbrownell@users.sourceforge.net> Signed-off-by:
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Joe Perches authored
Some bad email addresses are removed: linux-tr@linuxtr.net ehaase@inf.fu-berlin.de Some are updated: linux@maxim.org.za to andrew@sanpeople.com linux-kernel@linux-mips.org to linux-mips@linux-mips.org jdike@karaya.com to jdike@addtoit.com The PCMCIA entry is corrected to a web address The ZR36120 VIDEO FOR LINUX DRIVER entry is removed Signed-off-by:Joe Perches <joe@perches.com> Signed-off-by:
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Maciej W. Rozycki authored
The esp_reset_cleanup() function is called with the host lock held and invokes starget_for_each_device() which wants to take it too. Here is a fix along the lines of shost_for_each_device()/__shost_for_each_device() adding a __starget_for_each_device() counterpart which assumes the lock has already been taken. Eventually, I think the driver should get modified so that more work is done as a softirq rather than in the interrupt context, but for now it fixes a bug that causes the spinlock debugger to fire. While at it, it fixes a small number of cosmetic problems with starget_for_each_device() too. Signed-off-by:
Maciej W. Rozycki <macro@linux-mips.org> Acked-by:
David S. Miller <davem@davemloft.net> Cc: James Bottomley <James.Bottomley@steeleye.com> Cc: <stable@kernel.org> Signed-off-by:
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Neil Brown authored
Fix NULL dereference in umem.c Signed-off-by:
Neil Brown <neilb@suse.de> Tested-by:
Dave Chinner <dgc@sgi.com> Signed-off-by:
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Julia Lawall authored
There should be an of_node_put when breaking out of a loop that iterates using for_each_compatible_node. This was detected and fixed using the following semantic patch. (http://www.emn.fr/x-info/coccinelle/) // <smpl> @@ identifier d; type T; expression e; iterator for_each_compatible_node; @@ T *d; ... for_each_compatible_node(d,...) {... when != of_node_put(d) when != e = d ( return d; | + of_node_put(d); ? return ...; ) ...} // </smpl> Signed-off-by:
Julia Lawall <julia@diku.dk> Acked-by:
Grant Likely <grant.likely@secretlab.ca> Acked-by:
Peter Korsgaard <jacmet@sunsite.dk> Signed-off-by:
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Adam Litke authored
The follow_hugetlb_page() fix I posted (merged as git commit 5b23dbe8) missed one case. If the pte is present, but not writable and write access is requested by the caller to get_user_pages(), the code will do the wrong thing. Rather than calling hugetlb_fault to make the pte writable, it notes the presence of the pte and continues. This simple one-liner makes sure we also fault on the pte for this case. Please apply. Signed-off-by:
Adam Litke <agl@us.ibm.com> Acked-by:
Dave Kleikamp <shaggy@us.ibm.com> Signed-off-by:
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Will Newton authored
Signed-off-by:
Will Newton <will.newton@gmail.com> Signed-off-by:
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Will Newton authored
Signed-off-by:
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Will Newton authored
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Roel Kluin authored
Some places where CLOCK_TICK_RATE may be used incorrectly: arch/arm/mach-mx3/time.c:125: __raw_writel((v / CLOCK_TICK_RATE) - 1, MXC_GPT_GPTPR); drivers/watchdog/davinci_wdt.c:103: timer_margin = (((u64)heartbeat * CLOCK_TICK_RATE) & 0xffffffff); drivers/watchdog/davinci_wdt.c:105: timer_margin = (((u64)heartbeat * CLOCK_TICK_RATE) >> 32); drivers/watchdog/ks8695_wdt.c:64: unsigned long tval = wdt_time * CLOCK_TICK_RATE; I'm not sure whether this definition is used there, but adding parentheses should be good anyway. Signed-off-by:
Roel Kluin <12o3l@tiscali.nl> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by:
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Randy Dunlap authored
Fix kernel-doc comments in drivers/pcmcia/: - ti113x.h does not contain kernel-doc, so don't use /** to begin a doc comment - yenta_socket.c: remove /** on non-kernel-doc comments; escape the ':' in an "http:" comment so that it won't be treated as a section heading; - cs.c: remove /** on non-kernel-doc comments & add function parameter info - ds.c: fix function parameter info Signed-off-by:
Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by:
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Andrew Morton authored
revert commit 55d9fcf5 Author: Matthew Wilcox <matthew@wil.cx> Date: Mon Jul 30 15:19:18 2007 -0600 [SCSI] dpt_i2o: convert to SCSI hotplug model - Delete refereces to HOSTS_C - Switch to module_init/module_exit instead of detect/release - Don't pass around the host template and rename it to adpt_template - Switch from scsi_register/scsi_unregister to scsi_host_alloc, scsi_add_host, scsi_scan_host and scsi_host_put. Because it caused (for unknown reasons) Andres' all-data-reads-as-zeroes problem, reported at http://groups.google.com/group/fa.linux.kernel/msg/083a9acff0330234 Cc: Matthew Wilcox <matthew@wil.cx> Cc: "Salyzyn, Mark" <mark_salyzyn@adaptec.com> Cc: James Bottomley <James.Bottomley@SteelEye.com> Acked-by:FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: Anders Henke <anders.henke@1und1.de> Signed-off-by:
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Andrew Morton authored
AOE forgot to initialise its queue's backing_dev_info, so kernels crash. (http://bugzilla.kernel.org/show_bug.cgi?id=9482) Fix that and consoldate aoeblk_gdalloc()'s error handling. Thanks be to Jon for reporting and testing. Cc: "Ed L. Cashin" <ecashin@coraid.com> Cc: <stable@kernel.org> Cc: "Jon Nelson" <jnelson@jamponi.net> Acked-by:
Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by:
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- 10 Dec, 2007 15 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6Linus Torvalds authored
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6: firewire: OHCI 1.0 Isochronous Receive support
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git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6Linus Torvalds authored
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6: [IA64] Fix iosapic interrupt delivery mode for CPE [IA64] kprobe: make kreturn probe handler stack unwind correct [IA64] operator priority fix in acpi_map_lsapic() [IA64] Add missing "space" to concatenated strings [IA64] make full use of macro efi_md_size [IA64] rename _bss to __bss_start [IA64] SGI Altix : fix bug in sn_io_late_init() [IA64] iosapic cleanup [IA64] signal : fix missing error checkings [IA64] export copy_page() to modules [IA64] don't assume that unwcheck.py is executable [IA64] increase .data.patch offset
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Jarod Wilson authored
Third rendition of FireWire OHCI 1.0 Isochronous Receive support, using a zer-copy method similar to OHCI 1.1 which puts the IR data payload directly into the userspace buffer. The zero-copy implementation eliminates the video artifacts, audio popping, and buffer underrun problems seen with version 1 of this patch, as well as fixing a regression in OHCI 1.1 support introduced by version 2 of this patch. Successfully tested in OHCI 1.1 mode on the following chipsets: - NEC uPD72847 (rev 01), OHCI 1.1 (PCI) - Ti XIO2200(A) (rev 01), OHCI 1.1 (PCIe) - Ti TSB41AB2 (rev 01), OHCI 1.1 (PCI on SB Audigy) - Apple UniNorth 2 (rev 81), OHCI 1.1 (PowerBook G4 onboard) Successfully tested in OHCI 1.0 mode on the following chipsets: - Agere FW323 (rev 06), OHCI 1.0 (Mac Mini onboard) - Agere FW323 (rev 06), OHCI 1.0 (PCI) - Via VT6306 (rev 46), OHCI 1.0 (PCI) - NEC OrangeLink (rev 01), OHCI 1.0 (PCI) - NEC uPD72847 (rev 01), OHCI 1.1 (PCI) - Ti XIO2200(A) (rev 01), OHCI 1.1 (PCIe) The bulk of testing was done in an x86_64 system, but was also successfully sanity-tested on other systems, including a PPC(32) PowerBook G4 and an i686 EPIA M10k. Crude benchmarking (watching top during capture) puts the cpu utilization during capture on the EPIA's 1GHz Via C3 processor around 13%, which is down from 30% with the v1 code. Some implementation details: To maintain the same userspace API as dual-buffer mode, we set up two descriptors for every incoming packet. The first is an INPUT_MORE descriptor, pointing to a buffer large enough to hold just the packet's iso headers, immediately followed by an INPUT_LAST descriptor, pointing to a chunk of the userspace buffer big enough for the packet's data payload. With this setup, each incoming packet fills in these two descriptors in a manner that very closely emulates dual-buffer receive, to the point where the bulk of the handle_ir_* code is now identical between the two (and probably primed for some restructuring to share code between them). The only caveat I have at the moment is that neither of my OHCI 1.0 Via VT6307-based FireWire controllers work particularly well with this code for reasons I have yet to figure out. Signed-off-by:
Jarod Wilson <jwilson@redhat.com> Signed-off-by:
Stefan Richter <stefanr@s5r6.in-berlin.de>
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git://oss.sgi.com:8090/xfs/xfs-2.6Linus Torvalds authored
* 'for-linus' of git://oss.sgi.com:8090/xfs/xfs-2.6: [XFS] Fix xfs_ichgtime()s broken usage of I_SYNC [XFS] Make xfsbufd threads freezable [XFS] revert to double-buffering readdir [XFS] Fix broken inode cluster setup. [XFS] Clear XBF_READ_AHEAD flag on I/O completion. [XFS] Fixed a few bugs in xfs_buf_associate_memory() [XFS] 971064 Various fixups for xfs_bulkstat(). [XFS] Fix dbflush panic in xfs_qm_sync.
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git://git.kernel.org/pub/scm/linux/kernel/git/sam/fix-kbuildLinus Torvalds authored
* git://git.kernel.org/pub/scm/linux/kernel/git/sam/fix-kbuild: kbuild: fix building with O=.. options kbuild: fix building with redirected output.
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Linus Torvalds authored
This reverts commit fd6e7321, which helped up things on MIPS, but was wrong for everything else. As Ralf Baechle puts it: "It seems the whole MIPS resource managment is complicated enough (out of necessity) that only a few people actually grok it. Ioports being actually memory mapped on MIPS only makes the confusion worse, sigh." Requested-by:
Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by:
Alan Cox <alan@redhat.com> Acked-by:
Ralf Baechle <ralf@linux-mips.org> Signed-off-by:
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Benjamin Herrenschmidt authored
PowerMac and CHRP/BriQ platforms have quirks to switch some IDE controllers from legacy mode to fully native mode. Those quirks however will not work properly anymore due to a change to the generic code to better handle legacy IDE resources. This fixes it by moving those quirk to "early" quirks (so they run before resources are probed for the devices) and clearing all BARs after the conversion to force a reallocation of sane values. Signed-off-by:
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David Chinner authored
The recent I_LOCK->I_SYNC changes mistakenly changed xfs_ichgtime to look at I_SYNC instead of I_LOCK. This was incorrect and prevents newly created inodes from moving to the dirty list. Change this to the correct check which is for I_NEW, not I_LOCK or I_SYNC so that behaviour is correct. SGI-PV: 974225 SGI-Modid: xfs-linux-melb:xfs-kern:30204a Signed-off-by:
Lachlan McIlroy <lachlan@sgi.com>
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Rafael J. Wysocki authored
Fix breakage caused by commit 83144186 that did not introduce the necessary call to set_freezable() in xfs/linux-2.6/xfs_buf.c . SGI-PV: 974224 SGI-Modid: xfs-linux-melb:xfs-kern:30203a Signed-off-by:
Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by:
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Christoph Hellwig authored
The current readdir implementation deadlocks on a btree buffers locks because nfsd calls back into ->lookup from the filldir callback. The only short-term fix for this is to revert to the old inefficient double-buffering scheme. SGI-PV: 973377 SGI-Modid: xfs-linux-melb:xfs-kern:30201a Signed-off-by:
Christoph Hellwig <hch@infradead.org> Signed-off-by:
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David Chinner authored
The radix tree based inode caches did away with the inode cluster hashes, replacing them with a bunch of masking and gang lookups on the radix tree. This masking got broken when moving the code to per-ag radix trees and indexing by agino # rather than straight inode number. The result is clustered inode writeback does not cluster and things can go extremely slowly when there are lots of inodes to write. Fix it up by comparing the agino # of the inode we just looked up to the index of the cluster we are looking for. Tested-by:
Torsten Kaiser <just.for.lkml@googlemail.com> SGI-PV: 972915 SGI-Modid: xfs-linux-melb:xfs-kern:30033a Signed-off-by:
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Lachlan McIlroy authored
SGI-PV: 972554 SGI-Modid: xfs-linux-melb:xfs-kern:30128a Signed-off-by:
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Lachlan McIlroy authored
- calculation of 'page_count' was incorrect as it did not consider the offset of 'mem' into the first page. The logic to bump 'page_count' didn't work if 'len' was <= PAGE_CACHE_SIZE (ie offset = 3k, len = 2k). - setting b_buffer_length to 'len' is incorrect if 'offset' is > 0. Set it to the total length of the buffer. - I suspect that passing a non-aligned address into mem_to_page() for the first page may have been causing issues - don't know but just tidy up that code anyway. SGI-PV: 971596 SGI-Modid: xfs-linux-melb:xfs-kern:30143a Signed-off-by:
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Lachlan McIlroy authored
- sanity check for NULL user buffer in xfs_ioc_bulkstat[_compat]() - remove the special case for XFS_IOC_FSBULKSTAT with count == 1. This special case causes bulkstat to fail because the special case uses xfs_bulkstat_single() instead of xfs_bulkstat() and the two functions have different semantics. xfs_bulkstat() will return the next inode after the one supplied while skipping internal inodes (ie quota inodes). xfs_bulkstate_single() will only lookup the inode supplied and return an error if it is an internal inode. - in xfs_bulkstat(), need to initialise 'lastino' to the inode supplied so in cases were we return without examining any inodes the scan wont restart back at zero. - sanity check for valid *ubcountp values. Cannot sanity check for valid ubuffer here because some users of xfs_bulkstat() don't supply a buffer. - checks against 'ubleft' (the space left in the user's buffer) should be against 'statstruct_size' which is the supplied minimum object size. The mixture of checks against statstruct_size and 0 was one of the reasons we were skipping inodes. - if the formatter function returns BULKSTAT_RV_NOTHING and an error and the error is not ENOENT or EINVAL then we need to abort the scan. ENOENT is for inodes that are no longer valid and we just skip them. EINVAL is returned if we try to lookup an internal inode so we skip them too. For a DMF scan if the inode and DMF attribute cannot fit into the space left in the user's buffer it would return ERANGE. We didn't handle this error and skipped the inode. We would continue to skip inodes until one fitted into the user's buffer or we completed the scan. - put back the recalculation of agino (that got removed with the last fix) at the end of the while loop. This is because the code at the start of the loop expects agino to be the last inode examined if it is non-zero. - if we found some inodes but then encountered an error, return success this time and the error next time. If the formatter aborted with ENOMEM we will now return this error but only if we couldn't read any inodes. Previously if we encountered ENOMEM without reading any inodes we returned a zero count and no error which falsely indicated the scan was complete. SGI-PV: 973431 SGI-Modid: xfs-linux-melb:xfs-kern:30089a Signed-off-by:
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Donald Douwsma authored
The recent behaviour layer removal dropped the check for quotas that have been requested at mount time but have subsequently been turned off. This results in a panic when accessing m_quotainfo which has been freed. This patch adds the check originally made by xfs_qm_syncall() to xfs_qm_sync(). SGI-PV: 969769 SGI-Modid: xfs-linux-melb:xfs-kern:29908a Signed-off-by:
Donald Douwsma <donaldd@sgi.com> Signed-off-by:
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- 09 Dec, 2007 8 commits
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Linus Torvalds authored
Both slob and slub react to __GFP_ZERO by clearing the allocation, which means that passing the GFP_ZERO bit down to the page allocator is just wasteful and pointless. Acked-by:
Matt Mackall <mpm@selenic.com> Reviewed-by:
Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by:
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Sam Ravnborg authored
The check introduced in commit: 4f1127e2 "kbuild: fix infinite make recursion" caused certain external modules not to build and also caused 'make targz-pkg' to fail. This is a minimal fix so we revert to previous behaviour - but we do not overwrite the Makefile in the top-level directory. Signed-off-by:
Sam Ravnborg <sam@ravnborg.org> Tested-by:
Jay Cliburn <jacliburn@bellsouth.net> Cc: Jay Cliburn <jacliburn@bellsouth.net>
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Sam Ravnborg authored
Jan Altenberg <jan.altenberg@linutronix.de> reported that building with redirected input like this failed: make O=dir oldconfig bzImage < /dev/null The problem were caused by a make silentoldconfig being run before oldconfig and with a non-recent .config the build failed because silentoldconfig requires non-redirected stdin. Silentoldconfig was run as a side-effect of having the top-level Makefile re-made by make. Introducing an empty rule for the top-level Makefile (and Kbuild.include) fixed the issue. Signed-off-by: -
Ralf Baechle authored
Most Malta use an FPGA CPU card which rarely is good for more than 40MHz. So the performance penalta of the regular timer interrupt, especially for the VSMP kernel model is significant, even at a mere 100Hz. Signed-off-by: -
Ralf Baechle authored
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Atsushi Nemoto authored
IP7 will be enabled automatically in mips_clockevent_init(), if available. Signed-off-by:
Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by:
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Manuel Lauss authored
With the introduction of MIPS_CPU_IRQ_BASE, the hardcoded IRQ number of the au1100/au1200 SD controller(s) is no longer valid. Signed-off-by:
Manuel Lauss <mano@roarinelk.homelinux.net> Signed-off-by:
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Chris Dearman authored
Signed-off-by:
Chris Dearman <chris@mips.com> Signed-off-by:
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- 08 Dec, 2007 2 commits
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Kenji Kaneshige authored
If "CPEI Processor Override" bit is not set in "Platform Interrupt Source Flags" in "Platform Interrupt Sources Structure" in ACPI MADT, the target processor of CPEI is restricted to a specific CPU. Because of this, the delivery mode for CPEI should be IOSAPIC_FIXED. Signed-off-by:
Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Signed-off-by:
Tony Luck <tony.luck@intel.com>
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Shaohua Li authored
Restore regs->ccr_iip before kreturn probe handler runs. In this way, if probe handler does unwind, unwind can correctly get the stack trace. Fixes: http://sourceware.org/bugzilla/show_bug.cgi?id=5051Signed-off-by:
Shaohua Li <shaohua.li@intel.com> Signed-off-by:
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