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* [PATCH] ipw2200: remove the MAC timestamp present field from radiotap headZhu Yi2006-08-291-5/+2
| | | | | | | | | | IEEE80211_RADIOTAP_TSFT is defined as the Value in microseconds of the MAC's 64-bit 802.11 Time Synchronization Function timer when the first bit of the MPDU arrived at the MAC. Since ipw2200 hardware doesn't provide this value, we disable this feature from the radiotap header present flag. Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* [PATCH] ipw2200: Fix ipw2200 QOS parameters endian issueZhu Yi2006-08-291-21/+31
| | | | | | Signed-off-by: Jackie Wu <jackie.wu@intel.com> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* [PATCH] ipw2200: remove unused struct ipw_rx_bufferZhu Yi2006-08-292-2/+0
| | | | | Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* [PATCH] ipw2200: Reassociate even if set the same essid.Zhu Yi2006-08-291-5/+6
| | | | | | | | | | | This patch traps the case when the essid is being set to its current value. If the essid is being set again and we are already associated, chances are some other parameters have also been altered. I think it is safer to do the re-association for this case. Signed-off-by: Bill Moss <bmoss@clemson.edu> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* [PATCH] ipw2200: ipw_wx_set_essid fixZhu Yi2006-08-291-22/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | This patch cleanups the ipw_wx_set_essid code and forces a reassociation when setting the essid to "any". I have tested this patch with iwconfig. It makes ipw2200 compliant with all the cases mentioned in the iwconfig man page. The commands iwconfig iface essid any iwconfig iface essid -- any iwconfig iface essid off iwconfig iface essid on all seemed to work correctly. None of this worked before the patch. Note, this patch treats iwconfig iface essid iwconfig iface essid "" The same. It produces an error message: essid: Unknown host. Since an essid of "" is not mentioned in the iwconfig man page. Signed-off-by: Bill Moss <bmoss@clemson.edu> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* [PATCH] ipw2200: SIOCGIWFREQ ioctl returns frequency rather than channelZhu Yi2006-08-291-3/+20
| | | | | | | | | | | | | The SIOCGIWFREQ ioctl fills the request structure's freq field by setting the exponent to 0 and the mantissa to the current channel number. The iwconfig tool works around this behaviour by looking up the frequency from the channel table if a frequency below 1kHz is returned, other tools (e.g. kwlaninfo) don't. According to the comment in the iwconfig source the driver is supposed to return the frequency, not the channel number. Signed-off-by: Ingo van Lil <inguin@gmx.de> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* [PATCH] ipw2200: always enable frequently used debugging codeZhu Yi2006-08-293-53/+28
| | | | | | | | | | | Moving part of the debugging code from IPW_DEBUG to IPW_LL_DEBUG (low level debugging) and make IPW_DEBUG be always enabled. IPW_LL_DEBUG still needs to be enabled by selecting CONFIG_IPW2200_DEBUG. But it is highly deprecated for normal users since it adds higher debug verbosity in driver hot paths. Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* [PATCH] ieee80211: Workaround malformed 802.11 frames from APZhu Yi2006-08-291-7/+10
| | | | | | | | | | Stop processing further but return success when we receive a malformed packet from the AP. We need this patch to workaround some AP bugs. For example, the beacon frames from the Orinoco AP1000 contains an IE (value = 128) with length equals to 8 but the actual frame length is only 7. Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* [PATCH] ieee80211: Fix TKIP and WEP decryption error on SMP machinesZhu Yi2006-08-292-41/+84
| | | | | | | | | | | | | The IEEE80211 TKIP and WEP Tx and Rx paths use the same crypto_tfm to encrypt and decrypt data. During the encrypt and decrypt process, both of them will set a new key to crypto_tfm. If they happen on the same time, it will corrupt the crypto_tfm. Thus users will receive an ICV error or Michael MIC error. This only likely to happen on SMP box with heavy traffic both on Tx and Rx. The patch use two sets of crypto_tfms to avoid this problem. Signed-off-by: Hong Liu <hong.liu@intel.com> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* [PATCH] ieee80211: TKIP and CCMP replay check reworkZhu Yi2006-08-292-3/+36
| | | | | | Signed-off-by: Hong Liu <hong.liu@intel.com> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* [PATCH] ieee80211: remove ieee80211_tx() is_queue_full warningZhu Yi2006-08-291-7/+0
| | | | | Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* [PATCH] ieee80211: Fix header->qos_ctl endian issueZhu Yi2006-08-292-2/+2
| | | | | | Signed-off-by: Jackie Wu <jackie.wu@intel.com> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* [PATCH] bcm43xx: return correct hard_start_xmit error codeLarry Finger2006-08-291-1/+3
| | | | | | | | hard_start_xmit should return a NETIF_TX_FOO error code. Signed-off-by: Michael Buesch <mb@bu3sch.de> Signed-Off-By: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* [PATCH] bcm43xx: optimization of DMA bitfieldsLarry Finger2006-08-291-3/+6
| | | | | | | | | | | | Convert the bitfields in the bcm43xx DMA code to properly aligned u8 booleans. These flags are accessed in the DMA hotpath, so it's a good idea to waste a few bytes of memory for the sake of speed by not requiring masking (and probably shifting) of the bitfields. Signed-off-by: Michael Buesch <mb@bu3sch.de> Signed-Off-By: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* [PATCH] orinoco: include linux/if_arp.h directlyPavel Roskin2006-08-291-0/+1
| | | | | | | Don't rely on linux/if_arp.h being included by other headers Signed-off-by: Pavel Roskin <proski@gnu.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* [PATCH] orinoco: Don't use "extern inline" on locking functionsPavel Roskin2006-08-291-6/+2
| | | | | | | SPARC architecture has been fixed, so it's no longer needed. Signed-off-by: Pavel Roskin <proski@gnu.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* [PATCH] MAINTAINERS: Add Larry Finger for bcm43xx (softmac)Michael Buesch2006-08-291-3/+3
| | | | | | | | | | Add Larry Finger to bcm43xx MAINTAINERS Remove Michael Buesch and add Larry Finger in the bcm43xx-softmac MAINTAINERS record. Signed-off-by: Michael Buesch <mb@bu3sch.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* [PATCH] bcm43xx: re-add bcm43xx_rng_init() callMichael Buesch2006-08-291-0/+6
| | | | | | | | Calls to bcm43xx_rng_init() and bcm43xx_rng_exit() got lost due to merge trouble. Re-add them. Signed-off-by: Michael Buesch <mb@bu3sch.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* [PATCH] bcm43xx: >1G and 64bit DMA supportMichael Buesch2006-08-294-324/+691
| | | | | | | | | This is a rewrite of the bcm43xx DMA engine. It adds support for >1G of memory (for chips that support the extension bits) and 64-bit DMA (for chips that support it). Signed-off-by: Michael Buesch <mb@bu3sch.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* [PATCH] kthread: airo.cSukadev Bhattiprolu2006-08-291-24/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | The airo driver is currently caching a pid for later use, but with the implementation of containers, pids themselves do not uniquely identify a task. The driver is also using kernel_thread() which is deprecated in drivers. This patch essentially replaces the kernel_thread() with kthread_create(). It also stores the task_struct of the airo_thread rather than its pid. Since this introduces a second task_struct in struct airo_info, the patch renames airo_info.task to airo_info.list_bss_task. As an extension of these changes, the patch further: - replaces kill_proc() with kthread_stop() - replaces signal_pending() with kthread_should_stop() - removes thread completion synchronisation which is handled by kthread_stop(). [akpm@osdl.org: fix races] Signed-off-by: Sukadev Bhattiprolu <sukadev@us.ibm.com> Cc: Javier Achirica <achirica@gmail.com> Cc: Christoph Hellwig <hch@infradead.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* Merge branch 'from-linus' into upstreamJohn W. Linville2006-08-29321-5060/+14709
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| * Merge master.kernel.org:/home/rmk/linux-2.6-serialLinus Torvalds2006-08-282-0/+17
| |\ | | | | | | | | | | | | * master.kernel.org:/home/rmk/linux-2.6-serial: [SERIAL] Support for Intashield 2 port PCI serial card
| | * [SERIAL] Support for Intashield 2 port PCI serial cardPeter Horton2006-08-272-0/+17
| | | | | | | | | | | | | | | | | | | | | | | | Here is a patch that adds support for the Instashield IS-200 2 port PCI serial card. Signed-off-by: Peter Horton <pdh@colonel-panic.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds2006-08-2817-79/+205
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * master.kernel.org:/home/rmk/linux-2.6-arm: [ARM] 3761/1: fix armv4t breakage after adding thumb interworking to userspace helpers [ARM] Add Integrator support for glibc outb() and friends [ARM] Move prototype for register_isa_ports to asm/io.h [ARM] Arrange for isa.c to use named initialisers [ARM] 3741/1: remove sa1111.c build warning on non-sa1100 systems [ARM] 3760/1: This patch adds timeouts while working with SSP registers. Such timeouts were en [ARM] 3758/1: Preserve signalling NaNs in conversion [ARM] 3749/3: Correct VFP single/double conversion emulation [ARM] 3748/3: Correct error check in vfp_raise_exceptions
| | * | [ARM] 3761/1: fix armv4t breakage after adding thumb interworking to ↵Lennert Buytenhek2006-08-282-5/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | userspace helpers Patch from Lennert Buytenhek On armv4t systems, we have always compiled the kernel with -march=armv4 instead of -march=armv4t, which means that any use of bx will bomb out. Commit ba9b5d76372dc290b6ca04dad93927a22c2ac49a introduced the use of bx in the kernel, which means we need to compile with -march=armv4t on armv4t systems now. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * | [ARM] Add Integrator support for glibc outb() and friendsRussell King2006-08-282-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Add the necessary call to register_isa_ports() so that glibc knows where these are found on Integrator platforms. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * | [ARM] Move prototype for register_isa_ports to asm/io.hRussell King2006-08-282-1/+7
| | | | | | | | | | | | | | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * | [ARM] Arrange for isa.c to use named initialisersRussell King2006-08-281-21/+42
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert isa.c (the glibc interface for emulating ISA IO) to use named initialisers. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * | [ARM] 3741/1: remove sa1111.c build warning on non-sa1100 systemsDavid Brownell2006-08-271-1/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Patch from David Brownell Remove buld warning when building sa1111 on non-sa1100 platforms (e.g. PXA). Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * | [ARM] 3760/1: This patch adds timeouts while working with SSP registers. ↵Paul Sokolovsky2006-08-275-27/+82
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Such timeouts were en Patch from Paul Sokolovsky This patch adds timeouts while working with SSP registers. Such timeouts were envisioned by docstrings in ssp.c, but were not implemented. There were actual lockups while accessing touchscreen for iPaqs h1910, h4000 due to lack of the timeouts. This is updated version of previously submitted patch: 3738/1. Signed-off-by: Paul Sokolovsky <pmiscml@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * | [ARM] 3758/1: Preserve signalling NaNs in conversionDaniel Jacobowitz2006-08-272-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Patch from Daniel Jacobowitz The fcvtds and fcvtsd instructions were generating a qnan bit pattern for both quiet and signalling NaNs. Signed-off-by: Daniel Jacobowitz <dan@codesourcery.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * | [ARM] 3749/3: Correct VFP single/double conversion emulationDaniel Jacobowitz2006-08-272-18/+43
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Patch from Daniel Jacobowitz The fcvtsd/fcvtds emulation was left behind when the numbering of double precision registers was changed from 0-30 to 0-15. Both conversion instructions were writing their results to the wrong register. Also, the conversion instructions should stop after the first element even if a vector length is specified. Signed-off-by: Daniel Jacobowitz <dan@codesourcery.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * | [ARM] 3748/3: Correct error check in vfp_raise_exceptionsDaniel Jacobowitz2006-08-272-2/+10
| | |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Patch from Daniel Jacobowitz The recent fix to hide VFP_NAN_FLAG broke the check in vfp_raise_exceptions; it would attempt to deliver an exception mask of 0xfffffeff instead of reporting a serious error condition using printk. Define a safe constant to use for an invalid exception maskm, and use it at both ends. Signed-off-by: Daniel Jacobowitz <dan@codesourcery.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | Linux v2.6.18-rc5v2.6.18-rc5Linus Torvalds2006-08-271-1/+1
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| * | [PATCH] Fix tty layer DoS and comment relevant codeAlan Cox2006-08-272-10/+80
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Unlike the other tty comment patch this one has code changes. Specifically it limits the queue size for a tty to 64K characters (128Kbytes) worst case even if the tty is ignoring tty->throttle. This is because certain drivers don't honour the throttle value correctly, although it is a useful safeguard anyway. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * | [PATCH] tty layer comment the locking assumptions and functions somewhatAlan Cox2006-08-272-62/+715
| | | | | | | | | | | | | | | | | | | | | | | | | | | Doesn't fix them but does show up some interesting areas that need review and fixing. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * | [PATCH] cdrom/gdsc: fix printk format warningRandy Dunlap2006-08-271-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix printk format warning: drivers/cdrom/gscd.c:269: warning: format ‘%lu’ expects type ‘long unsigned int’, but argument 2 has type ‘unsigned int’ Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Cc: Jens Axboe <axboe@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * | [PATCH] x86: NUMAQ Kconfig fixKAMEZAWA Hiroyuki2006-08-271-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | When we select NUMA with i386, the system is only X86_NUMAQ or using ACPI. Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * | [PATCH] /proc/meminfo: don't put spaces in namesAndrew Morton2006-08-272-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | None of the other /proc/meminfo lines have a space in the identifier. This post-2.6.17 addition has the potential to break existing parsers, so use an underscore instead (like Committed_AS). Cc: Christoph Lameter <clameter@engr.sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * | [PATCH] fix up lockdep trace in fs/exec.cDave Jones2006-08-271-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes the locking error noticed by lockdep: ============================================= [ INFO: possible recursive locking detected ] --------------------------------------------- init/1 is trying to acquire lock: (&sighand->siglock){....}, at: [<c047a78a>] flush_old_exec+0x3ae/0x859 but task is already holding lock: (&sighand->siglock){....}, at: [<c047a77a>] flush_old_exec+0x39e/0x859 other info that might help us debug this: 2 locks held by init/1: #0: (tasklist_lock){..--}, at: [<c047a76a>] flush_old_exec+0x38e/0x859 #1: (&sighand->siglock){....}, at: [<c047a77a>] flush_old_exec+0x39e/0x859 stack backtrace: [<c04051e1>] show_trace_log_lvl+0x54/0xfd [<c040579d>] show_trace+0xd/0x10 [<c04058b6>] dump_stack+0x19/0x1b [<c043b33a>] __lock_acquire+0x773/0x997 [<c043bacf>] lock_acquire+0x4b/0x6c [<c060630b>] _spin_lock+0x19/0x28 [<c047a78a>] flush_old_exec+0x3ae/0x859 [<c0498053>] load_elf_binary+0x4aa/0x1628 [<c0479cab>] search_binary_handler+0xa7/0x24e [<c047b577>] do_execve+0x15b/0x1f9 [<c04022b4>] sys_execve+0x29/0x4d [<c0403faf>] syscall_call+0x7/0xb Signed-off-by: Arjan van de Ven <arjan@infradead.org> 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] lockdep: annotate reiserfsIngo Molnar2006-08-272-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | reiserfs seems to have another locking level layer for the i_mutex due to the xattrs-are-a-directory thing. 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] lockdep: annotate idescsi_pc_intr()Ingo Molnar2006-08-271-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | idescsi_pc_intr() uses local_irq_enable() in IRQ context: annotate it. (this has no effect on kernels with lockdep disabled. On kernels with lockdep enabled this means that we wont actually disable interrupts, and the warning message will go away as well.) 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] CONFIG_ACPI_SRAT NUMA build fixKAMEZAWA Hiroyuki2006-08-271-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In file included from include/asm/mmzone.h:18, from include/linux/mmzone.h:439, <snip> include/asm/srat.h:31:2: error: #error CONFIG_ACPI_SRAT not defined, and srat.h header has been included make[1]: *** [arch/i386/kernel/asm-offsets.s] Error 1 This can happen with CONFIG_NUMA && !CONFIG_ACPI && !CONFIG_X86_NUMAQ Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * | [PATCH] cpuset: oom panic fixNick Piggin2006-08-271-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | cpuset_excl_nodes_overlap always returns 0 if current is exiting. This caused customer's systems to panic in the OOM killer when processes were having trouble getting memory for the final put_user in mm_release. Even though there were lots of processes to kill. Change to returning 1 in this case. This achieves parity with !CONFIG_CPUSETS case, and was observed to fix the problem. Signed-off-by: Nick Piggin <npiggin@suse.de> Acked-by: Paul Jackson <pj@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * | [PATCH] register_one_node() compile fixKAMEZAWA Hiroyuki2006-08-271-1/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | register_one_node()'s should be defined under CONFIG_NUMA=n. fixes following bug. CC init/version.o LD init/built-in.o LD .tmp_vmlinux1 mm/built-in.o: In function `add_memory': undefined reference to `register_one_node' Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Acked-by: Yasunori Goto <y-goto@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * | [PATCH] Manage jbd allocations from its own slabsBadari Pulavarty2006-08-274-13/+97
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | JBD currently allocates commit and frozen buffers from slabs. With CONFIG_SLAB_DEBUG, its possible for an allocation to cross the page boundary causing IO problems. https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=200127 So, instead of allocating these from regular slabs - manage allocation from its own slabs and disable slab debug for these slabs. [akpm@osdl.org: cleanups] Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * | [PATCH] cpuset: top_cpuset tracks hotplug changes to cpu_online_mapPaul Jackson2006-08-272-0/+39
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Change the list of cpus allowed to tasks in the top (root) cpuset to dynamically track what cpus are online, using a CPU hotplug notifier. Make this top cpus file read-only. On systems that have cpusets configured in their kernel, but that aren't actively using cpusets (for some distros, this covers the majority of systems) all tasks end up in the top cpuset. If that system does support CPU hotplug, then these tasks cannot make use of CPUs that are added after system boot, because the CPUs are not allowed in the top cpuset. This is a surprising regression over earlier kernels that didn't have cpusets enabled. In order to keep the behaviour of cpusets consistent between systems actively making use of them and systems not using them, this patch changes the behaviour of the 'cpus' file in the top (root) cpuset, making it read only, and making it automatically track the value of cpu_online_map. Thus tasks in the top cpuset will have automatic use of hot plugged CPUs allowed by their cpuset. Thanks to Anton Blanchard and Nathan Lynch for reporting this problem, driving the fix, and earlier versions of this patch. Signed-off-by: Paul Jackson <pj@sgi.com> Cc: Nathan Lynch <ntl@pobox.com> Cc: Anton Blanchard <anton@samba.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * | [PATCH] md: fix recent breakage of md/raid1 array checkingNeilBrown2006-08-271-3/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A recent patch broke the ability to do a user-request check of a raid1. This patch fixes the breakage and also moves a comment that was dislocated by the same patch. 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: avoid backward event updates in md superblock when degraded.NeilBrown2006-08-271-0/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If we - shut down a clean array, - restart with one (or more) drive(s) missing - make some changes - pause, so that they array gets marked 'clean', the event count on the superblock of included drives will be the same as that of the removed drives. So adding the removed drive back in will cause it to be included with no resync. To avoid this, we only update the eventcount backwards when the array is not degraded. In this case there can (should) be no non-connected drives that we can get confused with, and this is the particular case where updating-backwards is valuable. 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] eventpoll.c compile fixMasoud Asgharifard Sharbiani2006-08-271-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix two compile failures in eventpoll.c code which would happen if DEBUG_EPOLL is bigger than zero. Signed-off-by: Masoud Sharbiani <masouds@google.com> Cc: Davide Libenzi <davidel@xmailserver.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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