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2006-05-15[PATCH] fix can_share_swap_page() when !CONFIG_SWAPHua Zhong
can_share_swap_page() is used to check if the page has the last reference. This avoids allocating a new page for COW if it's the last page. However, if CONFIG_SWAP is not set, can_share_swap_page() is defined as 0, thus always causes a copy for the last COW page. The below simple patch fixes it. Signed-off-by: Hua Zhong <hzhong@gmail.com> Cc: David Howells <dhowells@redhat.com> Cc: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-05-15[PATCH] add slab_is_available() routine for boot codeMike Kravetz
slab_is_available() indicates slab based allocators are available for use. SPARSEMEM code needs to know this as it can be called at various times during the boot process. Signed-off-by: Mike Kravetz <kravetz@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-05-15[PATCH] symbol_put_addr() locks kernelTrent Piepho
Even since a previous patch: Fix race between CONFIG_DEBUG_SLABALLOC and modules Sun, 27 Jun 2004 17:55:19 +0000 (17:55 +0000) http://www.kernel.org/git/?p=linux/kernel/git/torvalds/old-2.6-bkcvs.git;a=commit;h=92b3db26d31cf21b70e3c1eadc56c179506d8fbe The function symbol_put_addr() will deadlock the kernel. symbol_put_addr() would acquire modlist_lock, then while holding the lock call two functions kernel_text_address() and module_text_address() which also try to acquire the same lock. This deadlocks the kernel of course. This patch changes symbol_put_addr() to not acquire the modlist_lock, it doesn't need it since it never looks at the module list directly. Also, it now uses core_kernel_text() instead of kernel_text_address(). The latter has an additional check for addr inside a module, but we don't need to do that since we call module_text_address() (the same function kernel_text_address uses) ourselves. Signed-off-by: Trent Piepho <xyzzy@speakeasy.org> Cc: Zwane Mwaikambo <zwane@fsmlabs.com> Acked-by: Rusty Russell <rusty@rustcorp.com.au> Cc: Johannes Stezenbach <js@linuxtv.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-05-15[PATCH] s390: add vmsplice system callMartin Schwidefsky
Add new vmsplice system call and add missing __NR_xxx defines for sys_set_robust_list, sys_get_robust_list, sys_splice, sys_sync_file_range and sys_tee. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-05-15[PATCH] RCU: introduce rcu_needs_cpu() interfaceHeiko Carstens
With "Paul E. McKenney" <paulmck@us.ibm.com> Introduce rcu_needs_cpu() interface. This can be used to tell if there will be a new rcu batch on a cpu soon by looking at the curlist pointer. This can be used to avoid to enter a tickless idle state where the cpu would miss that a new batch is ready when rcu_start_batch would be called on a different cpu. Signed-off-by: Heiko Carstens <heiko.carstens@de.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>
2006-05-12[NEIGH]: Fix IP-over-ATM and ARP interaction.Simon Kelley
The classical IP over ATM code maintains its own IPv4 <-> <ATM stuff> ARP table, using the standard neighbour-table code. The neigh_table_init function adds this neighbour table to a linked list of all neighbor tables which is used by the functions neigh_delete() neigh_add() and neightbl_set(), all called by the netlink code. Once the ATM neighbour table is added to the list, there are two tables with family == AF_INET there, and ARP entries sent via netlink go into the first table with matching family. This is indeterminate and often wrong. To see the bug, on a kernel with CLIP enabled, create a standard IPv4 ARP entry by pinging an unused address on a local subnet. Then attempt to complete that entry by doing ip neigh replace <ip address> lladdr <some mac address> nud reachable Looking at the ARP tables by using ip neigh show will reveal two ARP entries for the same address. One of these can be found in /proc/net/arp, and the other in /proc/net/atm/arp. This patch adds a new function, neigh_table_init_no_netlink() which does everything the neigh_table_init() does, except add the table to the netlink all-arp-tables chain. In addition neigh_table_init() has a check that all tables on the chain have a distinct address family. The init call in clip.c is changed to call neigh_table_init_no_netlink(). Since ATM ARP tables are rather more complicated than can currently be handled by the available rtattrs in the netlink protocol, no functionality is lost by this patch, and non-ATM ARP manipulation via netlink is rescued. A more complete solution would involve a rtattr for ATM ARP entries and some way for the netlink code to give neigh_add and friends more information than just address family with which to find the correct ARP table. [ I've changed the assertion checking in neigh_table_init() to not use BUG_ON() while holding neigh_tbl_lock. Instead we remember that we found an existing tbl with the same family, and after dropping the lock we'll give a diagnostic kernel log message and a stack dump. -DaveM ] Signed-off-by: Simon Kelley <simon@thekelleys.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-05-11Merge master.kernel.org:/home/rmk/linux-2.6-serialLinus Torvalds
* master.kernel.org:/home/rmk/linux-2.6-serial: [SERIAL] 8250: add locking to console write function [SERIAL] Remove unconditional enable of TX irq for console [SERIAL] 8250: set divisor register correctly for AMD Alchemy SoC uart [SERIAL] AMD Alchemy UART: claim memory range [SERIAL] Clean up serial locking when obtaining a reference to a port
2006-05-11Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: [NET_SCHED]: HFSC: fix thinko in hfsc_adjust_levels() [IPV6]: skb leakage in inet6_csk_xmit [BRIDGE]: Do sysfs registration inside rtnl. [NET]: Do sysfs registration as part of register_netdevice. [TG3]: Fix possible NULL deref in tg3_run_loopback(). [NET] linkwatch: Handle jiffies wrap-around [IRDA]: Switching to a workqueue for the SIR work [IRDA]: smsc-ircc: Minimal hotplug support. [IRDA]: Removing unused EXPORT_SYMBOLs [IRDA]: New maintainer. [NET]: Make netdev_chain a raw notifier. [IPV4]: ip_options_fragment() has no effect on fragmentation [NET]: Add missing operstates documentation.
2006-05-11Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6Linus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6: (25 commits) [SCSI] mptfc: race between mptfc_register_dev and mptfc_target_alloc [SCSI] lpfc 8.1.6 : Fix Data Corruption in Bus Reset Path [SCSI] mptspi: revalidate negotiation parameters after host reset and resume [SCSI] srp.h: avoid padding of structs [SCSI] ibmvscsi: fix leak when failing to send srp event [SCSI] qla2xxx: Correct eh_abort recovery logic. [SCSI] megaraid_{mm,mbox}: fix a bug in reset handler [SCSI] fusion - bug fix stack overflow in mptbase [SCSI] scsi: Add IBM 2104-DU3 to blist [SCSI] Fix DVD burning issues. [SCSI] SCSI: aic7xxx_osm_pci resource leak fix. [SCSI] - fusion - mptfc bug fix's to prevent deadlock situations [SCSI] mptfusion: bug fix's for raid components adding/deleting [SCSI] aic7xxx: ahc_pci_write_config() fix [SCSI] megaraid: unused variable [SCSI] qla2xxx: only free_irq() after request_irq() succeeds [SCSI] Overrun in drivers/scsi/sim710.c [SCSI] lpfc 8.1.5 : Change version number to 8.1.5 [SCSI] lpfc 8.1.5 : Misc small fixes [SCSI] lpfc 8.1.5 : Additional fixes to LOGO, PLOGI, and RSCN processing ...
2006-05-10Merge branch 'upstream' of ↵Linus Torvalds
master.kernel.org:/pub/scm/linux/kernel/git/shemminger/netdev-2.6 * 'upstream' of master.kernel.org:/pub/scm/linux/kernel/git/shemminger/netdev-2.6: sis900: phy for FoxCon motherboard dl2k: use DMA_48BIT_MASK constant phy: mdiobus_register(): initialize all phy_map entries sky2: ifdown kills irq mask
2006-05-10dl2k: use DMA_48BIT_MASK constantFrancois Romieu
Typo will be harder with this one. Signed-off-by: Francois Romieu <romieu@fr.zoreil.com> Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
2006-05-10[NET]: Do sysfs registration as part of register_netdevice.Stephen Hemminger
The last step of netdevice registration was being done by a delayed call, but because it was delayed, it was impossible to return any error code if the class_device registration failed. Side effects: * one state in registration process is unnecessary. * register_netdevice can sleep inside class_device registration/hotplug * code in netdev_run_todo only does unregistration so it is simpler. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-05-09Merge branch 'upstream' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/shemminger/netdev-2.6 * 'upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/shemminger/netdev-2.6: [PATCH] bcm43xx: Fix access to non-existent PHY registers [PATCH] bcm43xx: Fix array overrun in bcm43xx_geo_init [PATCH] bcm43xx: check for valid MAC address in SPROM [PATCH] ieee80211: Fix A band channel count (resent) [PATCH] bcm43xx: fix iwmode crash when down [PATCH] softmac: make non-operational after being stopped [PATCH] softmac: don't reassociate if user asked for deauthentication spidernet: enable support for bcm5461 ethernet phy spidernet: introduce new setting Fix RTL8019AS init for Toshiba RBTX49xx boards au1000_eth.c: use ether_crc() from <linux/crc32.h> sky2: version 1.3 Add more support for the Yukon Ultra chip found in dual core centino laptops. sky2: synchronize irq on remove sky2: dont write status ring sky2: edge triggered workaround enhancement sky2: use mask instead of modulo operation sky2: tx ring index mask fix sky2: status irq hang fix sky2: backout NAPI reschedule
2006-05-09powerpc/32: Define an is_kernel_addr() to fix ARCH=ppc compilationPaul Mackerras
My commit 6bfd93c32a5065d0e858780b3beb0b667081601c broke the ARCH=ppc compilation by using the is_kernel_addr() macro in asm/uaccess.h. This fixes it by defining a suitable is_kernel_addr() for ARCH=ppc. Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-05-08Merge branch 'upstream-fixes' of ↵Stephen Hemminger
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6
2006-05-08sky2: backout NAPI rescheduleStephen Hemminger
This is a backout of earlier patch. The whole rescheduling hack was a bad idea. It doesn't really solve the problem and it makes the code more complicated for no good reason. Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
2006-05-08[PATCH] x86_64: Avoid EBDA area in early boot allocatorAndi Kleen
Based on analysis&patch from Robert Hentosch Observed on a Dell PE6850 with 16GB The problem occurs very early on, when the kernel allocates space for the temporary memory map called bootmap. The bootmap overlaps the EBDA region. EBDA region is not historically reserved in the e820 mapping. When the bootmap is freed it marks the EBDA region as usable. If you notice in setup.c there is already code to work around the EBDA in reserve_ebda_region(), this check however occurs after the bootmap is allocated and doesn't prevent the bootmap from using this range. AK: I redid the original patch. Thanks also to Jan Beulich for spotting some mistakes. Cc: Robert_Hentosch@dell.com Cc: jbeulich@novell.com Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-05-08[PATCH] x86_64: avoid IRQ0 ioapic pin collisionKimball Murray
The patch addresses a problem with ACPI SCI interrupt entry, which gets re-used, and the IRQ is assigned to another unrelated device. The patch corrects the code such that SCI IRQ is skipped and duplicate entry is avoided. Second issue came up with VIA chipset, the problem was caused by original patch assigning IRQs starting 16 and up. The VIA chipset uses 4-bit IRQ register for internal interrupt routing, and therefore cannot handle IRQ numbers assigned to its devices. The patch corrects this problem by allowing PCI IRQs below 16. Cc: len.brown@intel.com Signed-off by: Natalie Protasevich <Natalie.Protasevich@unisys.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-05-08Merge branch 'release' of ↵Linus Torvalds
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] remove asm-ia64/bitops.h self-inclusion [IA64] strcpy returns NULL pointer and not destination pointer
2006-05-08Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: [IRDA] irda-usb: use NULL instead of 0 [IPV4]: Remove likely in ip_rcv_finish() [NET]: Create netdev attribute_groups with class_device_add [CLASS DEVICE]: add attribute_group creation
2006-05-07[ARM] 3506/1: aaec2000: debug-macro.S needs hardware.hBellido Nicolas
Patch from Bellido Nicolas Include hardware.h in debug-macro.S, otherwise io_p2v is undefined. Signed-off-by: Nicolas Bellido <ml@acolin.be> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-05-07[ARM] 3505/1: aaec2000: entry-macro.S needs asm/arch/irqs.hBellido Nicolas
Patch from Bellido Nicolas Since git commit 2b78838842346da390e8547cd37035184376d506, entry-macro.S needs to include asm/arch/irqs.h Signed-off-by: Nicolas Bellido <ml@acolin.be> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-05-07[ARM] 3501/1: i.MX: fix lowlevel debug macrosSascha Hauer
Patch from Sascha Hauer This patch fixes the addruart macro to work with both mmu enabled and disabled. Signed-off-by: Sascha Hauer <s.hauer@pengutonix.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-05-06[NET]: Create netdev attribute_groups with class_device_addStephen Hemminger
Atomically create attributes when class device is added. This avoids the race between registering class_device (which generates hotplug event), and the creation of attribute groups. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-05-06[CLASS DEVICE]: add attribute_group creationStephen Hemminger
Extend the support of attribute groups in class_device's to allow groups to be created as part of the registration process. This allows network device's to avoid race between registration and creating groups. Note that unlike attributes that are a property of the class object, the groups are a property of the class_device object. This is done because there are different types of network devices (wireless for example). Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-05-05[SCTP]: Allow spillover of receive buffer to avoid deadlock.Neil Horman
This patch fixes a deadlock situation in the receive path by allowing temporary spillover of the receive buffer. - If the chunk we receive has a tsn that immediately follows the ctsn, accept it even if we run out of receive buffer space and renege data with higher TSNs. - Once we accept one chunk in a packet, accept all the remaining chunks even if we run out of receive buffer space. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> Acked-by: Mark Butler <butlerm@middle.net> Acked-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: Sridhar Samudrala <sri@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-05-05[ARM] 3495/1: EABI: undefine removed syscalls, but...Nicolas Pitre
Patch from Nicolas Pitre ... but only for user space. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-05-05[ARM] 3500/1: fix PXA27x DMA allocation priorityNicolas Pitre
Patch from Nicolas Pitre Intel PXA27x developers manual section 5.4.1.1 lists a priority distribution for the DMA channels differently than what the code currently assumes. This patch fixes that. Noticed by Simon Vogl <vogl@soft.uni-linz.ac.at> Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-05-05[PATCH] ieee80211: Fix A band channel count (resent)Jean Delvare
The channel count for 802.11a is still not right. We better compute it from the min and max channel numbers, rather than hardcoding it. Signed-off-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2006-05-05[PATCH] softmac: make non-operational after being stoppedDaniel Drake
zd1211 with softmac and wpa_supplicant revealed an issue with softmac and the use of workqueues. Some of the work functions actually reschedule themselves, so this meant that there could still be pending work after flush_scheduled_work() had been called during ieee80211softmac_stop(). This patch introduces a "running" flag which is used to ensure that rescheduling does not happen in this situation. I also used this flag to ensure that softmac's hooks into ieee80211 are non-operational once the stop operation has been started. This simply makes softmac a little more robust, because I could crash it easily by receiving frames in the short timeframe after shutting down softmac and before turning off the ZD1211 radio. (ZD1211 is now fixed as well!) Signed-off-by: Daniel Drake <dsd@gentoo.org> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2006-05-05[IA64] remove asm-ia64/bitops.h self-inclusionJon Mason
asm-ia64/bitops.h includes itself. The #ifndef _ASM_IA64_BITOPS_H prevents this from being an issue, but it should still be removed. Signed-off-by: Jon Mason <jdmason@us.ibm.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2006-05-05[ARM] 3494/1: asm-arm/bug.h needs linux/stddef.hNicolas Pitre
Patch from Nicolas Pitre ... for the definition of NULL. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-05-04Merge branch 'merge' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: [PATCH] powerpc: Use the ibm,pa-features property if available powerpc: Fix incorrect might_sleep in __get_user/__put_user on kernel addresses [PATCH] ppc32 CPM_UART: fixes and improvements [PATCH] ppc32 CPM_UART: Fixed break send on SCC [PATCH] powerpc/kprobes: fix singlestep out-of-line [PATCH] powerpc/pseries: avoid crash in PCI code if mem system not up
2006-05-04Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds
* master.kernel.org:/home/rmk/linux-2.6-arm: [ARM] 3490/1: i.MX: move uart resources to board files [ARM] 3488/1: make icedcc_putc do the right thing [ARM] 3487/1: IXP4xx: Support non-PCI systems [ARM] 3486/1: Mark memory as clobbered by the ARM _syscallX() macros
2006-05-04Merge master.kernel.org:/home/rmk/linux-2.6-mmcLinus Torvalds
* master.kernel.org:/home/rmk/linux-2.6-mmc: [MMC] Move set_ios debugging into mmc.c [MMC] Correct mmc_request_done comments [MMC] PXA: reduce the number of lines PXAMCI debug uses [MMC] PXA and i.MX: don't avoid sending stop command on error [MMC] extend data timeout for writes [ARM] 3485/1: i.MX: MX1 SD/MMC fix of unintentional double start possibility
2006-05-04Merge branch 'splice' of git://brick.kernel.dk/data/git/linux-2.6-blockLinus Torvalds
* 'splice' of git://brick.kernel.dk/data/git/linux-2.6-block: [PATCH] compat_sys_vmsplice: one-off in UIO_MAXIOV check [PATCH] splice: redo page lookup if add_to_page_cache() returns -EEXIST [PATCH] splice: rename remaining info variables to pipe [PATCH] splice: LRU fixups [PATCH] splice: fix unlocking of page on error ->prepare_write()
2006-05-04Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: [DECNET]: Fix level1 router hello [TCP]: Fix sock_orphan dead lock [ROSE]: Eleminate HZ from ROSE kernel interfaces [NETROM]: Eleminate HZ from NET/ROM kernel interfaces [AX.25]: Eleminate HZ from AX.25 kernel interfaces [ROSE]: Fix routing table locking in rose_remove_neigh. [AX.25]: Move AX.25 symbol exports [HAMRADIO]: Remove remaining SET_MODULE_OWNER calls from hamradio drivers. [AX25, ROSE]: Remove useless SET_MODULE_OWNER calls. [AX.25]: Spelling fix [ROSE]: Remove useless prototype for rose_remove_neigh(). [NETFILTER]: x_tables: don't use __copy_{from,to}_user on unchecked memory in compat layer [NETFILTER]: H.323 helper: Change author's email address [NETFILTER]: NAT: silence unused variable warnings with CONFIG_XFRM=n [NETFILTER]: H.323 helper: fix use of uninitialized data [NETFILTER]: H.323 helper: fix endless loop caused by invalid TPKT len
2006-05-04[ARM] 3490/1: i.MX: move uart resources to board filesSascha Hauer
Patch from Sascha Hauer This patch moves the i.MX uart resources and the gpio pin setup to the board files. This allows the boards to decide how many internal uarts are connected to the outside world and whether they use rts/cts or not. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-05-03[ROSE]: Eleminate HZ from ROSE kernel interfacesRalf Baechle
Convert all ROSE sysctl time values from jiffies to ms as units. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-05-03[NETROM]: Eleminate HZ from NET/ROM kernel interfacesRalf Baechle
Convert all NET/ROM sysctl time values from jiffies to ms as units. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-05-03[AX.25]: Eleminate HZ from AX.25 kernel interfacesRalf Baechle
Convert all AX.25 sysctl time values from jiffies to ms as units. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-05-03[NETFILTER]: H.323 helper: Change author's email addressJing Min Zhao
Signed-off-by: Jing Min Zhao <zhaojingmin@users.sourceforge.net> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-05-04[PATCH] splice: LRU fixupsJens Axboe
Nick says that the current construct isn't safe. This goes back to the original, but sets PIPE_BUF_FLAG_LRU on user pages as well as they all seem to be on the LRU in the first place. Signed-off-by: Jens Axboe <axboe@suse.de>
2006-05-03[SPARC]: Hook up vmsplice into syscall tables.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-05-03powerpc: Fix incorrect might_sleep in __get_user/__put_user on kernel addressesPaul Mackerras
We have a case where __get_user and __put_user can validly be used on kernel addresses in interrupt context - namely, the alignment exception handler, as our get/put_unaligned just do a single access and rely on the alignment exception handler to fix things up in the rare cases where the cpu can't handle it in hardware. Thus we can get alignment exceptions in the network stack at interrupt level. The alignment exception handler does a __get_user to read the instruction and blows up in might_sleep(). Since a __get_user on a kernel address won't actually ever sleep, this makes the might_sleep conditional on the address being less than PAGE_OFFSET. Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-05-03[PATCH] ppc32 CPM_UART: fixes and improvementsVitaly Bordug
A number of small issues are fixed, and added the header file, missed from the original series. With this, driver should be pretty stable as tested among both platform-device-driven and "old way" boards. Also added missing GPL statement , and updated year field on existing ones to reflect code update. Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-05-03[PATCH] ppc32 CPM_UART: Fixed break send on SCCVitaly Bordug
SCC uart sends a break sequence each time it is stopped with the CPM_CR_STOP_TX command. That means that each time an application closes the serial device, a break is transmitted. To fix this, graceful tx stop is issued for SCC. Signed-off-by: David Jander <david.jander@protonic.nl> Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-05-02[MMC] extend data timeout for writesRussell King
The CSD contains a "read2write factor" which determines the multiplier to be applied to the read timeout to obtain the write timeout. We were ignoring this parameter, resulting in the possibility for writes being timed out too early. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-05-02[PATCH] vmsplice: restrict stealing a little moreJens Axboe
Apply the same rules as the anon pipe pages, only allow stealing if no one else is using the page. Signed-off-by: Jens Axboe <axboe@suse.de>
2006-05-02[PATCH] splice: fix page LRU accountingJens Axboe
Currently we rely on the PIPE_BUF_FLAG_LRU flag being set correctly to know whether we need to fiddle with page LRU state after stealing it, however for some origins we just don't know if the page is on the LRU list or not. So remove PIPE_BUF_FLAG_LRU and do this check/add manually in pipe_to_file() instead. Signed-off-by: Jens Axboe <axboe@suse.de>