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* Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds2005-12-12
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| * [ARM] 3200/1: Singlestep over ARM BX and BLX instructions using ptrace fixNikola Valerjev2005-12-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Patch from Nikola Valerjev Single stepping an application using ptrace() fails over ARM instructions BX and BLX. Steps to reproduce: Compile and link the following files main.c ----- void foo(); int main() { foo(); return 0; } foo.s ----- .text .globl foo foo: BX LR Using ptrace() functionality, run to main(), and start singlestepping. Singlestep over \"BX LR\" instruction won\'t transfer the control back to main, but run the code to completion. This problems seems to be in the function get_branch_address() in arch/arm/kernel/ptrace.c. The function doesn\'t seem to recognize BX and BLX instructions as branches. BX and BLX instructions can be used to convert from ARM to Thumb mode if the target address has the low bit set. However, they are also perfectly legal in the ARM only mode. Although other things in the kernel seem to indicate that only ARM mode is accepted (and not Thumb), many compilers will generate BX and BLX instructions even when generating ARM only code. Signed-off-by: Nikola Valerjev <nikola@ghs.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * [ARM] 3199/1: Remove bogus function prototype from arch-pxa/irq.hDeepak Saxena2005-12-08
| | | | | | | | | | | | | | | | | | Patch from Deepak Saxena This looks like a leftover from 2.4 days... Signed-off-by: Deepak Saxena <dsaxena@plexity.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * [ARM] 3194/1: add pfn_to_kaddr macro for ARM take2Hiroki Kaminaga2005-12-05
| | | | | | | | | | | | | | | | | | | | Patch from Hiroki Kaminaga This patch defines a new macro: pfn_to_kaddr(pfn). Same macro is already defined on other arch, such as i386. Signed-off-by: Hiroki Kaminaga <kaminaga@sm.sony.co.jp> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * [ARM] 3191/1: Mark I/O pointer as const in __raw_reads[bwl]Deepak Saxena2005-12-05
| | | | | | | | | | | | | | | | | | | | | | | | Patch from Deepak Saxena Mark the ioremap'd cookie/pointer in said functions as const since we should not be actualy touching the data. This fixes a slew of compile warnings on IXP4xx as our reads[bwl] already mark this parameter as const. Signed-off-by: Deepak Saxena <dsaxena@plexity.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * [ARM SMP] mpcore_wdt bogus fpos checkMarcelo Tosatti2005-12-05
| | | | | | | | | | | | | | | | | | | | drivers/char/watchdog/mpcore_wdt.c write function contains a check for (ppos != &file->f_pos). Such check used to make sense when a pointer to file->f_pos was handed by vfs_write(), not a copy of it as it stands now. Signed-off-by: Marcelo Tosatti <marcelo.tosatti@cyclades.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * [ARM] Add memory.txt to 00-INDEXRussell King2005-12-04
| | | | | | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | Merge master.kernel.org:/home/rmk/linux-2.6-mmcLinus Torvalds2005-12-12
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| * | [MMC] Proper check of SCR error codePierre Ossman2005-12-05
| | | | | | | | | | | | | | | | | | | | | | | | The routine reading the SCR wasn't paying proper attention to the error codes returned from the driver. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | | Merge master.kernel.org:/home/rmk/linux-2.6-serialLinus Torvalds2005-12-12
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| * | | [SERIAL] 8250_pci: Remove redundant assignment, and mark fallthrough.Dave Jones2005-12-07
| |/ / | | | | | | | | | Signed-off-by: Dave Jones <davej@redhat.com>
* | | [PATCH] Fix SCSI scanning slab corruptionBrian King2005-12-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is a double free in the scsi scan code if a LLDD's slave_alloc() call fails. There is a direct call to scsi_free_queue and then the following put_device calls the release function, which also frees the queue. Remove the redundant scsi_free_queue. Signed-off-by: Brian King <brking@us.ibm.com> Tested-by: Nathan Lynch <ntl@pobox.com> [ Also removed some strange whitespace artifacts in that area ] Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | Revert revert of "[SCSI] fix usb storage oops"Linus Torvalds2005-12-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This reverts commit 1b0997f561bf46689cc6e0903f342e9bf2506bf1, which in turn reverted 34ea80ec6a02ad02e6b9c75c478c18e5880d6713 (which is thus re-instated). Quoth James Bottomley: "All it's doing is deferring the device_put() from the scsi_put_command() to after the scsi_run_queue(), which doesn't fix the sleep while atomic problem of the device release method. In both cases we still get the semaphore in atomic context problem which is caused by scsi_reap_target() doing a device_del(), which I assumed (wrongly) was valid from atomic context." who also promised to fix scsi_reap_target(). Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] md: use correct size of raid5 stripe cache when measuring how full it isNeilBrown2005-12-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The raid5 stripe cache was recently changed from fixed size (NR_STRIPES) to variable size (conf->max_nr_stripes). However there are two places that still use the constant and as a result, reducing the size of the stripe cache can result in a deadlock. Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] md: fix a use-after-free bug in raid1NeilBrown2005-12-12
| | | | | | | | | | | | | | | | | | | | | | | | Who would submit code with a FIXME like that in it !!!! Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] raw driver: Kconfig fixAndrew Morton2005-12-12
| | | | | | | | | | | | | | | | | | | | | CONFIG_MAX_RAW_DEVS should appear immediately after CONFIG_RAW_DRIVER. Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] ACPI: fix sleeping whilst atomic warnings on resumeDave Jones2005-12-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This has been broken for months. On resume, we call acpi_pci_link_set() with interrupts off, so we get a warning when we try to do a kmalloc of non atomic memory. The actual allocation is just 2 long's (plus extra byte for some reason I can't fathom), so a simple conversion to GFP_ATOMIC is probably the safest way to fix this. The error looks like this.. Debug: sleeping function called from invalid context at mm/slab.c:2486 in_atomic():0, irqs_disabled():1 [<c0143f6c>] kmem_cache_alloc+0x40/0x56 [<c0206a2e>] acpi_pci_link_set+0x3f/0x17f [<c0206f96>] irqrouter_resume+0x1e/0x3c [<c0239bca>] __sysdev_resume+0x11/0x6b [<c0239e88>] sysdev_resume+0x34/0x52 [<c023de21>] device_power_up+0x5/0xa Signed-off-by: Dave Jones <davej@redhat.com> Cc: "Brown, Len" <len.brown@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] fix in __alloc_bootmem_core() when there is no free page in first ↵Haren Myneni2005-12-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | node's memory Hitting BUG_ON() in __alloc_bootmem_core() when there is no free page available in the first node's memory. For the case of kdump on PPC64 (Power 4 machine), the captured kernel is used two memory regions - memory for TCE tables (tce-base and tce-size at top of RAM and reserved) and captured kernel memory region (crashk_base and crashk_size). Since we reserve the memory for the first node, we should be returning from __alloc_bootmem_core() to search for the next node (pg_dat). Currently, find_next_zero_bit() is returning the n^th bit (eidx) when there is no free page. Then, test_bit() is failed since we set 0xff only for the actual size initially (init_bootmem_core()) even though rounded up to one page for bdata->node_bootmem_map. We are hitting the BUG_ON after failing to enter second "for" loop. Signed-off-by: Haren Myneni <haren@us.ibm.com> Cc: Andy Whitcroft <apw@shadowen.org> Cc: Dave Hansen <haveblue@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] Fix Kconfig of DMA32 for ia64Yasunori Goto2005-12-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I realized ZONE_DMA32 has a trivial bug at Kconfig for ia64. In include/linux/gfp.h on 2.6.15-rc5-mm1, CONFIG is define like followings. #ifdef CONFIG_DMA_IS_DMA32 #define __GFP_DMA32 ((__force gfp_t)0x01) /* ZONE_DMA is ZONE_DMA32 */ : : So, CONFIG_"ZONE"_DMA_IS_DMA32 is clearly wrong. Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com> Cc: "Luck, Tony" <tony.luck@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] input: fix ucb1x00-ts breakage after conversion to dynamic input_dev ↵Nicolas Pitre2005-12-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | allocation The bd622663192e8ebebb27dc1d9397f352a82d2495 commit broke the UCB1x00 touchscreen driver since the idev structure was assumed to be into the ts structure, simply casting the former to the later in a couple places. This patch fixes those, and also cache the idev pointer between multiple calls to input_report_abs() to avoid growing the compiled code needlessly. Signed-off-by: Nicolas Pitre <nico@cam.org> Cc: Dmitry Torokhov <dtor_core@ameritech.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] broken cast in parport_pcDave Jones2005-12-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Spotted by a Fedora user. Compiling with DEBUG_PARPORT set fails due to the broken cast. Just remove it. Signed-off-by: Dave Jones <davej@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] kprobes: increment kprobe missed count for multiprobesKeshavamurthy Anil S2005-12-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When multiple probes are registered at the same address and if due to some recursion (probe getting triggered within a probe handler), we skip calling pre_handlers and just increment nmissed field. The below patch make sure it walks the list for multiple probes case. Without the below patch we get incorrect results of nmissed count for multiple probe case. Signed-off-by: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] kprobes: no probes on critical pathKeshavamurthy Anil S2005-12-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For Kprobes critical path is the path from debug break exception handler till the control reaches kprobes exception code. No probes can be supported in this path as we will end up in recursion. This patch prevents this by moving the below function to safe __kprobes section onto which no probes can be inserted. Signed-off-by: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] ipmi: fix panic generator IDMatt Domsch2005-12-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The IPMI specifcation says the generator ID is 0x20, but that is for bits 7-1. Bit 0 is set to specify it is a software event. The correct value is 0x41. Without this fix, panic events written into the System Event Log appear to come from an "unknown" generator, rather than from the kernel. Signed-off-by: Jordan Hargrave <Jordan_Hargrave@dell.com> Signed-off-by: Matt Domsch <Matt_Domsch@dell.com> Acked-by: Corey Minyard <minyard@acm.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] V4L/DVB: (3151) I2C ID renamed to I2C_DRIVERID_INFRAREDMauro Carvalho Chehab2005-12-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | I2C ID renamed to I2C_DRIVERID_INFRARED Acked-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] V4L/DVB: (3113) Convert em28xx to use vm_insert_page instead of ↵Sascha Sommer2005-12-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | remap_pfn_range Convert em28xx to use vm_insert_page instead of remap_pfn_range Signed-off-by: Sascha Sommer <saschasommer@freenet.de> Signed-off-by: Michael Krufky <mkrufky@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br> Cc: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] V4L/DVB: (3135) Fix tuner init for Pinnacle PCTV StereoRicardo Cerqueira2005-12-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - The Pinnacle PCTV Stereo needs tda9887 port2 set to 1 - Without this patch, mt20xx tuner is not detected and the board doesn't tune. Signed-off-by: Ricardo Cerqueira <v4l@cerqueira.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] V4L/DVB: (3086c) Whitespaces cleanups part 4Mauro Carvalho Chehab2005-12-12
| | | | | | | | | | | | | | | | | | | | | | | | Clean up whitespaces at v4l/dvb files Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] V4L/DVB: (3086c) Whitespaces cleanups part 3Mauro Carvalho Chehab2005-12-12
| | | | | | | | | | | | | | | | | | | | | | | | Clean up whitespaces at v4l/dvb files Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] V4L/DVB: (3086b) Whitespaces cleanups part 2Mauro Carvalho Chehab2005-12-12
| | | | | | | | | | | | | | | | | | | | | | | | Clean up whitespaces at v4l/dvb files Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] V4L/DVB: (3086a) Whitespaces cleanups part 1Mauro Carvalho Chehab2005-12-12
| | | | | | | | | | | | | | | | | | | | | | | | Clean up whitespaces at v4l/dvb files Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] mips: setup_zero_pages count 1Hugh Dickins2005-12-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Page count should be initialized to 1 on each of the MIPS empty zero pages, to avoid a bad_page warning whenever one of them is freed from all mappings. Signed-off-by: Hugh Dickins <hugh@veritas.com> Cc: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] Add try_to_freeze to kauditdPierre Ossman2005-12-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | kauditd was causing suspends to fail because it refused to freeze. Adding a try_to_freeze() to its sleep loop solves the issue. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx> Acked-by: Pavel Machek <pavel@suse.cz> Cc: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] uml: fix compile error for ttPekka J Enberg2005-12-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | arch/um/kernel/tt/uaccess.c: In function `copy_from_user_tt': arch/um/kernel/tt/uaccess.c:11: error: `FIXADDR_USER_START' undeclared (first use in this function) arch/um/kernel/tt/uaccess.c:11: error: (Each undeclared identifier is reported only once arch/um/kernel/tt/uaccess.c:11: error: for each function it appears in.) I get the compile error when I disable CONFIG_MODE_SKAS. Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi> Acked-by: Paolo Giarrusso <blaisorblade@yahoo.it> Cc: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] inotify: add two inotify_add_watch flagsJohn McCutchan2005-12-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The below patch lets userspace have more control over the inodes that inotify will watch. It introduces two new flags. IN_ONLYDIR -- only watch the inode if it is a directory. This is needed to avoid the race that can occur when we want to be sure that we are watching a directory. IN_DONT_FOLLOW -- don't follow a symlink. In combination with IN_ONLYDIR we can make sure that we don't watch the target of symlinks. The issues the flags fix came up when writing the gnome-vfs inotify backend. Default behaviour is unchanged. Signed-off-by: John McCutchan <ttb@tentacle.dhs.org> Acked-by: Robert Love <rml@novell.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] cciss: double put_disk()Jens Axboe2005-12-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This undoes the put_disk patch I sent in before. If I had been paying attention I would have seen that we call put_disk from free_hba during driver unload. That's the only time we want to call it. If it's called from deregister disk we may remove the controller (cNd0) unintentionally. Signed-off-by: Mike Miller <mike.miller@hp.com> Signed-off-by: Jens Axboe <axboe@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] kprobes: fix race in aggregate kprobe registrationKeshavamurthy Anil S2005-12-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When registering multiple kprobes at the same address, we leave a small window where the kprobe hlist will not contain a reference to the registered kprobe, leading to potentially, a system crash if the breakpoint is hit on another processor. Patch below now automically relpace the old kprobe with the new kprobe from the hash list. Signed-off-by: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com> Acked-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Cc: "Paul E. McKenney" <paulmck@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] add hlist_replace_rcu()Ingo Molnar2005-12-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | Add list_replace_rcu: replace old entry by new one. Signed-off-by: Paul E. McKenney <paulmck@us.ibm.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] Add timestamp field to process eventsMatt Helsley2005-12-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds a timestamp field to the events sent via the process event connector. The timestamp allows listeners to accurately account the duration(s) between a process' events and offers strong means with which to determine the order of events with respect to a given task while also avoiding the addition of per-task data. This alters the size and layout of the event structure and hence would break compatibility if process events connector as it stands in 2.6.15-rc2 were released as a mainline kernel. Signed-off-by: Matt Helsley <matthltc@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] Add getnstimestamp functionMatt Helsley2005-12-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There are several functions that might seem appropriate for a timestamp: get_cycles() current_kernel_time() do_gettimeofday() <read jiffies/jiffies_64> Each has problems with combinations of SMP-safety, low resolution, and monotonicity. This patch adds a new function that returns a monotonic SMP-safe timestamp with nanosecond resolution where available. Changes: Split timestamp into separate patch Moved to kernel/time.c Renamed to getnstimestamp Fixed unintended-pointer-arithmetic bug Signed-off-by: Matt Helsley <matthltc@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] Fix listxattr() for generic security attributesDaniel Drake2005-12-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit f549d6c18c0e8e6cf1bf0e7a47acc1daf7e2cec1 introduced a generic fallback for security xattrs, but appears to include a subtle bug. Gentoo users with kernels with selinux compiled in, and coreutils compiled with acl support, noticed that they could not copy files on tmpfs using 'cp'. cp (compiled with acl support) copies the file, lists the extended attributes on the old file, copies them all to the new file, and then exits. However the listxattr() calls were failing with this odd behaviour: llistxattr("a.out", (nil), 0) = 17 llistxattr("a.out", 0x7fffff8c6cb0, 17) = -1 ERANGE (Numerical result out of range) I believe this is a simple problem in the logic used to check the buffer sizes; if the user sends a buffer the exact size of the data, then its ok :) This change solves the problem. More info can be found at http://bugs.gentoo.org/113138 Signed-off-by: Daniel Drake <dsd@gentoo.org> Acked-by: James Morris <jmorris@namei.org> Acked-by: Stephen Smalley <sds@tycho.nsa.gov> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] Fix RCU race in access of nohz_cpu_maskSrivatsa Vaddagiri2005-12-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Accessing nohz_cpu_mask before incrementing rcp->cur is racy. It can cause tickless idle CPUs to be included in rsp->cpumask, which will extend graceperiods unnecessarily. Fix this race. It has been tested using extensions to RCU torture module that forces various CPUs to become idle. Signed-off-by: Srivatsa Vaddagiri <vatsa@in.ibm.com> Cc: Dipankar Sarma <dipankar@in.ibm.com> Cc: "Paul E. McKenney" <paulmck@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] Fix bug in RCU torture testSrivatsa Vaddagiri2005-12-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | While doing some test of RCU torture module, I hit a OOPS in rcu_do_batch, which was trying to processes callback of a module that was just removed. This is because we weren't waiting long enough for all callbacks to fire. Signed-off-by: Srivatsa Vaddagiri <vatsa@in.ibm.com> Cc: Dipankar Sarma <dipankar@in.ibm.com> Acked-by: "Paul E. McKenney" <paulmck@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] add rcu_barrier() synchronization pointDipankar Sarma2005-12-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This introduces a new interface - rcu_barrier() which waits until all the RCUs queued until this call have been completed. Reiser4 needs this, because we do more than just freeing memory object in our RCU callback: we also remove it from the list hanging off super-block. This means, that before freeing reiser4-specific portion of super-block (during umount) we have to wait until all pending RCU callbacks are executed. The only change of reiser4 made to the original patch, is exporting of rcu_barrier(). Cc: Hans Reiser <reiser@namesys.com> Cc: Vladimir V. Saveliev <vs@namesys.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] ext3: fix mount options documentationAndreas Gruenbacher2005-12-12
| | | | | | | | | | | | | | | | | | | | | | | | Reported by Jacques de Mer and Daniel Drake <dsd@gentoo.org>. Signed-off-by: Andreas Gruenbacher <agruen@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] KERNELRELEASE depends on CONFIG_LOCALVERSIONAndreas Schwab2005-12-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Sam Ravnborg <sam@ravnborg.org> writes: > Author: Uwe Zeisberger <zeisberg@informatik.uni-freiburg.de> > > [PATCH] kbuild: make kernelrelease in unconfigured kernel prints an error > > Do not include .config for target kernelrelease This is wrong. KERNELRELEASE depends on CONFIG_LOCALVERSION, thus you need .config. Signed-off-by: Andreas Schwab <schwab@suse.de> Cc: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] x86: fix NMI with CPU hotplugShaohua Li2005-12-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With CPU hotplug enabled, NMI watchdog stoped working. It appears the violation is the cpu_online check in nmi handler. local ACPI based NMI watchdog is initialized before we set CPU online for APs. It's quite possible a NMI is fired before we set CPU online, and that's what happens here. Signed-off-by: Shaohua Li <shaohua.li@intel.com> Acked-by: Zwane Mwaikambo <zwane@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] Kprobes: Reference count the modules when probed on itMao, Bibo2005-12-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When a Kprobes are inserted/removed on a modules, the modules must be ref counted so as not to allow to unload while probes are registered on that module. Without this patch, the probed module is free to unload, and when the probing module unregister the probe, the kpobes code while trying to replace the original instruction might crash. Signed-off-by: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com> Signed-off-by: Mao Bibo <bibo.mao@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] blkmtd: use clear_page_dirty()Andrew Morton2005-12-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | SetPageDirty() and ClearPageDirty() are low-level thing which filesystems shouldn't be using. They bypass dirty page accounting. Cc: David Woodhouse <dwmw2@infradead.org> Acked-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | Allow arbitrary read-only shared pfn-remapping tooLinus Torvalds2005-12-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The VM layer (for historical reasons) turns a read-only shared mmap into a private-like mapping with the VM_MAYWRITE bit clear. Thus checking just VM_SHARED isn't actually sufficient. So use a trivial helper function for the cases where we wanted to inquire if a mapping was COW-like or not. Moo! Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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