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2007-03-23[PATCH] "ext[34]: EA block reference count racing fix" performance fixAndrew Morton
A little mistake in 8a2bfdcbfa441d8b0e5cb9c9a7f45f77f80da465 is making all transactions synchronous, which reduces ext3 performance to comical levels. Cc: Mingming Cao <cmm@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-23[PATCH] rivafb: fix initial brightnessGuido Guenther
This is the rivafb equivalent of 238576e12fef1d52751c6e08db2d0bdb0e248caf. It fixes rivafb having a default backlight brightness of 0 (no picture at all) on a PBook 6,1. Signed-off-by: Guido Guenther <agx@sigxcpu.org> Cc: "Antonino A. Daplas" <adaplas@pol.net> Acked-by: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-23[PATCH] add Fujitsu Siemens Tablet PC devices to 8250_pnp.cDanny Kukawka
Adds device ids of two Fujitsu Siemens Tablet PCs to pnp_dev_table Signed-off-by: Danny Kukawka <dkukawka@suse.de> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-23[PATCH] FDPIC: fix the /proc/pid/stat representation of executable boundariesDavid Howells
Fix the /proc/pid/stat representation of executable boundaries. It should show the bounds of the executable, but instead shows the bounds of the loader. Before the patch is applied, the bug can be seen by examining, say, inetd: # ps | grep inetd 610 root 0 S /usr/sbin/inetd -i # cat /proc/610/maps c0bb0000-c0bba788 r-xs 00000000 00:0b 14582157 /lib/ld-uClibc-0.9.28.so c3180000-c31dede4 r-xs 00000000 00:0b 14582179 /lib/libuClibc-0.9.28.so c328c000-c328ea00 rw-p 00008000 00:0b 14582157 /lib/ld-uClibc-0.9.28.so c3290000-c329b6c0 rw-p 00000000 00:00 0 c32a0000-c32c0000 rwxp 00000000 00:00 0 c32d4000-c32d8000 rw-p 00000000 00:00 0 c3394000-c3398000 rw-p 00000000 00:00 0 c3458000-c345f464 r-xs 00000000 00:0b 16384612 /usr/sbin/inetd c3470000-c34748f8 rw-p 00004000 00:0b 16384612 /usr/sbin/inetd c34cc000-c34d0000 rw-p 00000000 00:00 0 c34d4000-c34d8000 rw-p 00000000 00:00 0 c34d8000-c34dc000 rw-p 00000000 00:00 0 # cat /proc/610/stat 610 (inetd) S 1 610 610 0 -1 256 0 0 0 0 0 8 0 0 19 0 1 0 94392000718 950272 0 4294967295 3233480704 3233523592 3274440352 3274439976 3273467584 0 0 4096 90115 3221712796 0 0 17 0 0 0 0 The code boundaries are 3233480704 to 3233523592, which are: (gdb) p/x 3233480704 $1 = 0xc0bb0000 (gdb) p/x 3233523592 $2 = 0xc0bba788 Which corresponds to this line in the maps file: c0bb0000-c0bba788 r-xs 00000000 00:0b 14582157 /lib/ld-uClibc-0.9.28.so Which is wrong. After the patch is applied, the maps file is pretty much identical (there's some minor shuffling of the location of some of the anonymous VMAs), but the stat file is now: # cat /proc/610/stat 610 (inetd) S 1 610 610 0 -1 256 0 0 0 0 0 7 0 0 18 0 1 0 94392000722 950272 0 4294967295 3276111872 3276141668 3274440352 3274439976 3273467584 0 0 4096 90115 3221712796 0 0 17 0 0 0 0 The code boundaries are then 3276111872 to 3276141668, which are: (gdb) p/x 3276111872 $1 = 0xc3458000 (gdb) p/x 3276141668 $2 = 0xc345f464 And these correspond to this line in the maps file instead: c3458000-c345f464 r-xs 00000000 00:0b 16384612 /usr/sbin/inetd Which is now correct. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-23[PATCH] time: fix formatting in /proc/timer_listJames Morris
Fix the print formatting of three unsigned long fields in /proc/timer_list, which are currently being formatted as signed long. Signed-off-by: James Morris <jmorris@namei.org> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-23[PATCH] i386: add command line option "local_apic_timer_c2_ok"Thomas Gleixner
It turned out that it is almost impossible to trust ACPI, BIOS & Co. regarding the C states. This was the reason to switch the local apic timer off in C2 state already. OTOH there are sane and well behaving systems, which get punished by that decision. Allow the user to confirm that the local apic timer is trustworthy in C2 state. This keeps the default behaviour on the safe side. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-23Revert "ACPI: Only use IPI on known broken machines (AMD, ↵Linus Torvalds
Dothan/BaniasPentium M)" This reverts commit 25496caec111481161e7f06bbfa12a533c43cc6f, which broke bootup on at least Ingo's ThinkPad T60. Need to figure out exactly what is wrong before we can re-do the logic. Requested-by: Ingo Molnar <mingo@elte.hu> Acked-by: Thomas Gleixner <tglx@linutronix.de> Cc: Thomas Renninger <trenn@suse.de> Cc: Len Brown <len.brown@intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-23ieee1394: fix oops on "modprobe -r ohci1394" after network class_device ↵Stefan Richter
conversion The networking subsystem has been converted from class_device to device but ieee1394 hasn't. This results in a 100% reproducible NULL pointer dereference if the ohci1394 driver module is unloaded while the eth1394 module is still loaded. http://lkml.org/lkml/2006/11/16/147 http://lkml.org/lkml/2007/3/14/4 This is a regression in 2.6.21-rc1. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Tested-by: Ismail Dönmez <ismail@pardus.org.tr>
2007-03-23[netdrvr] ewrk3: correct card detection bugJeff Garzik
Arwin Vosselman pointed out: > The ewrk3-driver doesn't function with 2.6.16-kernels (used 2.6.16.41 for > my tests). Cards will never be detected due to this bug. > > drivers/net/ewrks3.c: > Line 417 reads: > > if (nicsr == (CSR_TXD | CSR_RXD)) > > that should be: > > if (nicsr != (CSR_TXD | CSR_RXD)) > > Comparison with the same line in v2.4 shows why: > > 2.4: > if (nicsr == (CSR_TXD | CSR_RXD)){ > > blah, blah > ========== > 2.6: > if (nicsr == (CSR_TXD | CSR_RXD)) > return -ENXIO; > > blah, blah > ========== > > blah,blah will not, but should, be executed in 2.6 with a card being present. > > The fix mentioned above solves this bug. Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-23Merge branch 'upstream-fixes' of ↵Jeff Garzik
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 into tmp
2007-03-23cxgb3 - fix white spaces in drivers/net/KconfigDivy Le Ray
Use tabs instead of white spaces for CHELSIO_T3 entry. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-23myri10ge: update driver version to 1.3.0-1.226Brice Goglin
Driver version is now 1.3.0-1.226. Signed-off-by: Brice Goglin <brice@myri.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-23myri10ge: fix management of >4kB allocated pagesBrice Goglin
Fix management of allocated physical pages when the architecture page size is not 4kB since the firmware cannot cross 4K boundary. Signed-off-by: Brice Goglin <brice@myri.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-23myri10ge: update wcfifo and intr_coal_delay default valuesBrice Goglin
Update the default value of 2 module parameters: * wcfifo disabled * intr_coal_delay 75us Signed-off-by: Brice Goglin <brice@myri.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-23myri10ge: Serverworks HT2100 provides aligned PCIe completionBrice Goglin
[PATCH 1/4] myri10ge: Serverworks HT2100 provides aligned PCIe completion Use the regular firmware on Serverworks HT2100 PCIe ports since this chipset provides aligned PCIe completion. Signed-off-by: Brice Goglin <brice@myri.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-23mv643xx_eth: add mv643xx_eth_shutdown functionDale Farnsworth
mv643xx_eth_shutdown is needed for kexec. Signed-off-by: Dale Farnsworth <dale@farnsworth.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-23SAA9730: Fix large pile of warningsRalf Baechle
The SAA9730 driver doesn't quite grok what the difference between an ioport and memory mapped I/O is. It just happened to work on the one Linux system the SAA9730 happens to spend it's misserable existence on. drivers/net/saa9730.c: In function 'evm_saa9730_enable_lan_int': drivers/net/saa9730.c:68: warning: passing argument 2 of 'outl' makes integer from pointer without a cast drivers/net/saa9730.c:70: warning: passing argument 2 of 'outl' makes integer from pointer without a cast drivers/net/saa9730.c:72: warning: passing argument 2 of 'outl' makes integer from pointer without a cast drivers/net/saa9730.c: In function 'evm_saa9730_disable_lan_int': drivers/net/saa9730.c:78: warning: passing argument 2 of 'outl' makes integer from pointer without a cast drivers/net/saa9730.c:80: warning: passing argument 2 of 'outl' makes integer from pointer without a cast drivers/net/saa9730.c: In function 'evm_saa9730_clear_lan_int': drivers/net/saa9730.c:85: warning: passing argument 2 of 'outl' makes integer from pointer without a cast drivers/net/saa9730.c: In function 'evm_saa9730_block_lan_int': drivers/net/saa9730.c:91: warning: passing argument 2 of 'outl' makes integer from pointer without a cast drivers/net/saa9730.c: In function 'evm_saa9730_unblock_lan_int': drivers/net/saa9730.c:97: warning: passing argument 2 of 'outl' makes integer from pointer without a cast drivers/net/saa9730.c: In function 'show_saa9730_regs': drivers/net/saa9730.c:150: warning: passing argument 2 of 'outl' makes integer from pointer without a cast drivers/net/saa9730.c: In function 'lan_saa9730_allocate_buffers': drivers/net/saa9730.c:292: warning: passing argument 2 of 'outl' makes integer from pointer without a cast drivers/net/saa9730.c:295: warning: passing argument 2 of 'outl' makes integer from pointer without a cast drivers/net/saa9730.c:302: warning: passing argument 2 of 'outl' makes integer from pointer without a cast drivers/net/saa9730.c:305: warning: passing argument 2 of 'outl' makes integer from pointer without a cast drivers/net/saa9730.c:312: warning: passing argument 2 of 'outl' makes integer from pointer without a cast drivers/net/saa9730.c: In function 'lan_saa9730_cam_load': drivers/net/saa9730.c:329: warning: passing argument 2 of 'outl' makes integer from pointer without a cast drivers/net/saa9730.c:332: warning: passing argument 2 of 'outl' makes integer from pointer without a cast drivers/net/saa9730.c: In function 'lan_saa9730_mii_init': drivers/net/saa9730.c:369: warning: passing argument 2 of 'outl' makes integer from pointer without a cast drivers/net/saa9730.c:395: warning: passing argument 2 of 'outl' makes integer from pointer without a cast drivers/net/saa9730.c:403: warning: passing argument 2 of 'outl' makes integer from pointer without a cast drivers/net/saa9730.c:410: warning: passing argument 2 of 'outl' makes integer from pointer without a cast drivers/net/saa9730.c:432: warning: passing argument 2 of 'outl' makes integer from pointer without a cast drivers/net/saa9730.c: In function 'lan_saa9730_control_init': drivers/net/saa9730.c:470: warning: passing argument 2 of 'outl' makes integer from pointer without a cast drivers/net/saa9730.c:474: warning: passing argument 2 of 'outl' makes integer from pointer without a cast drivers/net/saa9730.c:478: warning: passing argument 2 of 'outl' makes integer from pointer without a cast drivers/net/saa9730.c:484: warning: passing argument 2 of 'outl' makes integer from pointer without a cast drivers/net/saa9730.c:487: warning: passing argument 2 of 'outl' makes integer from pointer without a cast drivers/net/saa9730.c:490: warning: passing argument 2 of 'outl' makes integer from pointer without a cast drivers/net/saa9730.c:493: warning: passing argument 2 of 'outl' makes integer from pointer without a cast drivers/net/saa9730.c: In function 'lan_saa9730_stop': drivers/net/saa9730.c:505: warning: passing argument 2 of 'outl' makes integer from pointer without a cast drivers/net/saa9730.c:508: warning: passing argument 2 of 'outl' makes integer from pointer without a cast drivers/net/saa9730.c:510: warning: passing argument 2 of 'outl' makes integer from pointer without a cast drivers/net/saa9730.c: In function 'lan_saa9730_dma_init': drivers/net/saa9730.c:536: warning: passing argument 2 of 'outl' makes integer from pointer without a cast drivers/net/saa9730.c: In function 'lan_saa9730_start': drivers/net/saa9730.c:556: warning: passing argument 2 of 'outl' makes integer from pointer without a cast drivers/net/saa9730.c:560: warning: passing argument 2 of 'outl' makes integer from pointer without a cast drivers/net/saa9730.c:564: warning: passing argument 2 of 'outl' makes integer from pointer without a cast drivers/net/saa9730.c:567: warning: passing argument 2 of 'outl' makes integer from pointer without a cast drivers/net/saa9730.c: In function 'lan_saa9730_tx': drivers/net/saa9730.c:590: warning: passing argument 2 of 'outl' makes integer from pointer without a cast drivers/net/saa9730.c: In function 'lan_saa9730_rx': drivers/net/saa9730.c:664: warning: passing argument 2 of 'outl' makes integer from pointer without a cast drivers/net/saa9730.c:729: warning: passing argument 2 of 'outl' makes integer from pointer without a cast drivers/net/saa9730.c: In function 'lan_saa9730_write': drivers/net/saa9730.c:848: warning: passing argument 2 of 'outl' makes integer from pointer without a cast drivers/net/saa9730.c: In function 'lan_saa9730_set_multicast': drivers/net/saa9730.c:943: warning: passing argument 2 of 'outl' makes integer from pointer without a cast drivers/net/saa9730.c:949: warning: passing argument 2 of 'outl' makes integer from pointer without a cast Fixed by using writel instead of outl. 42 warnings less. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-23Revert "ucc_geth: returns NETDEV_TX_BUSY when BD ring is full"Li Yang
This reverts commit 18babd38547a042a4bfd4154a014d1ad33373eb0. Michael Barkowski points out that it's wrong, and I agree. The patch causes a problem rather than fixes one after another patch "ucc_geth: Fix BD processing" was applied. Before that patch, current packet should be blocked. However after the patch current packet is ok and we only need to block next. Reported-by: Michael Barkowski <michael.barkowski@freescale.com> Signed-off-by: Li Yang <leoli@freescale.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-23cxgb3 - T3B2 pcie config spaceDivy Le Ray
T3B2 does not lose its pcie config space on reset. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-23cxgb3 - Fix potential MAC hangDivy Le Ray
Under rare conditions, the MAC might hang while generating a pause frame. This patch fine tunes the MAC settings to avoid the issue, allows for periodic MAC state check, and triggers a recovery if hung. Also fix one MAC statistics counter for the rev board T3B2. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-23cxgb3 - Auto-load FW if mismatch detectedDivy Le Ray
The driver attempts to upgrade the FW if the card has the wrong version. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-23cxgb3 - fix ethtool cmd on multiple queues portDivy Le Ray
Limit ethtool -g/-G to the given port's queues. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-23Fix return code in pci-skeleton.cAnton Blanchard
We assign the return value of register_netdev to i, but return rc later on. Fix it. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-23skge: use per-port phy lockingStephen Hemminger
Rather than a workqueue and a per-board mutex to control PHY, use a tasklet and spinlock. Tasklet is lower overhead and works just as well for this. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-23skge: mask irqs when device downStephen Hemminger
Wheen a port on the skge driver is not used, it should mask off interrupts from theat port. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-23skge: deadlock on tx timeoutStephen Hemminger
The skge driver will deadlock if gets a transmit timeout because the netif_tx_lock() is already held. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-22Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6: [CIFS] Allow reset of file to ATTR_NORMAL when archive bit not set [CIFS] Do not negotiate new POSIX_PATH_OPERATIONS_CAP yet [CIFS] reset mode when client notices that ATTR_READONLY is no longer set
2007-03-22Merge branch 'release' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: ACPI: IA64: fix %ll build warnings ACPI: IA64: fix allnoconfig build ACPI: Only use IPI on known broken machines (AMD, Dothan/BaniasPentium M) ACPI: ibm-acpi: allow module to load when acpi notifiers can't be set (v2) ACPI: parse 2nd MADT by default ACPICA: revert "acpi_serialize" changes sony-laptop: MAINTAINERS fix entry, add L: and W: ACPI: resolve HP nx6125 S3 immediate wakeup regression ACPI: Add support to parse 2nd MADT
2007-03-22Merge 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: [POWERPC] Bypass hcall stats until cpu features have run [POWERPC] Avoid hypervisor statistics calculation in real mode [POWERPC] Fix atomicity of TIF update in flush_thread()
2007-03-22[PATCH] setup_boot_APIC_clock() irq-enable fixIngo Molnar
latest -git triggers an irqtrace/lockdep warning of a leaked irqs-off condition: BUG: at kernel/fork.c:1033 copy_process() after some debugging it turns out that commit ca1b940c accidentally left interrupts disabled - which trickled down all the way to the first time we fork a kernel thread and triggered the warning. the fix is to re-enable interrupts in the 'else' branch of setup_boot_APIC_clock()'s pmtimers calibration path. Reported-by: Michal Piotrowski <michal.k.k.piotrowski@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Acked-by: Thomas Gleixner <tglx@brown.paperbag.linutronix.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-22[PATCH] lockdep: debug_show_all_locks & debug_show_held_locks vs. debug_locksJarek Poplawski
lockdep's data shouldn't be used when debug_locks == 0 because it's not updated after this, so it's more misleading than helpful. PS: probably lockdep's current-> fields should be reset after it turns debug_locks off: so, after printing a bug report, but before return from exported functions, but there are really a lot of these possibilities (e.g. after DEBUG_LOCKS_WARN_ON), so, something could be missed. (Of course direct use of this fields isn't recommended either.) Reported-by: Folkert van Heusden <folkert@vanheusden.com> Inspired-by: Oleg Nesterov <oleg@tv-sign.ru> Signed-off-by: Jarek Poplawski <jarkao2@o2.pl> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-22[PATCH] Make XFS workqueues nonfreezableRafael J. Wysocki
Since freezable workqueues are broken in 2.6.21-rc (cf. http://marc.theaimsgroup.com/?l=linux-kernel&m=116855740612755, http://marc.theaimsgroup.com/?l=linux-kernel&m=117261312523921&w=2) it's better to change the only user of them, which is XFS, to use "normal" nonfreezable workqueues. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Cc: Pavel Machek <pavel@ucw.cz> Cc: David Chinner <dgc@sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-22[PATCH] lockdep: lockdep_depth vs. debug_locksJarek Poplawski
lockdep found a bug during a run of workqueue function - this could be also caused by a bug from other code running simultaneously. lockdep really shouldn't be used when debug_locks == 0! Reported-by: Folkert van Heusden <folkert@vanheusden.com> Inspired-by: Oleg Nesterov <oleg@tv-sign.ru> Signed-off-by: Jarek Poplawski <jarkao2@o2.pl> Cc: Ingo Molnar <mingo@elte.hu> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-22[PATCH] fix extra BIOS invocation during resumePavel Machek
It causes extra moon icons blinking on x60, and breaks at least two other systems. During resume, we do not know that "reboot"/"shutdown" method was used, so we assume "plaform" and call BIOS, anyway... This is 2.6.21 material, and should fix 2 or 3 regressions from 2.6.20. Signed-off-by: Pavel Machek <pavel@suse.cz> Acked-by: "Rafael J. Wysocki" <rjw@sisk.pl> Cc: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-22[PATCH] NOMMU: make SYSV SHM nattch work correctlyDavid Howells
Make the SYSV SHM nattch counter work correctly by forcing multiple VMAs to be produced to represent MAP_SHARED segments, even if they overlap exactly. Using this test program: http://people.redhat.com/~dhowells/doshm.c Run as: doshm sysv I can see nattch going from one before the patch: # /doshm sysv Command: sysv shmid: 65536 memory: 0xc3700000 c0b00000-c0b04000 rw-p 00000000 00:00 0 c0bb0000-c0bba788 r-xs 00000000 00:0b 14582157 /lib/ld-uClibc-0.9.28.so c3180000-c31dede4 r-xs 00000000 00:0b 14582179 /lib/libuClibc-0.9.28.so c3520000-c352278c rw-p 00000000 00:0b 13763417 /doshm c3584000-c35865e8 r-xs 00000000 00:0b 13763417 /doshm c3588000-c358aa00 rw-p 00008000 00:0b 14582157 /lib/ld-uClibc-0.9.28.so c3590000-c359b6c0 rw-p 00000000 00:00 0 c3620000-c3640000 rwxp 00000000 00:00 0 c3700000-c37fa000 rw-S 00000000 00:06 1411 /SYSV00000000 (deleted) c3700000-c37fa000 rw-S 00000000 00:06 1411 /SYSV00000000 (deleted) nattch 1 To two after the patch: # /doshm sysv Command: sysv shmid: 0 memory: 0xc3700000 c0bb0000-c0bba788 r-xs 00000000 00:0b 14582157 /lib/ld-uClibc-0.9.28.so c3180000-c31dede4 r-xs 00000000 00:0b 14582179 /lib/libuClibc-0.9.28.so c3320000-c3340000 rwxp 00000000 00:00 0 c3530000-c35325e8 r-xs 00000000 00:0b 13763417 /doshm c3534000-c353678c rw-p 00000000 00:0b 13763417 /doshm c3538000-c353aa00 rw-p 00008000 00:0b 14582157 /lib/ld-uClibc-0.9.28.so c3590000-c359b6c0 rw-p 00000000 00:00 0 c35a4000-c35a8000 rw-p 00000000 00:00 0 c3700000-c37fa000 rw-S 00000000 00:06 1369 /SYSV00000000 (deleted) c3700000-c37fa000 rw-S 00000000 00:06 1369 /SYSV00000000 (deleted) nattch 2 That's +1 to nattch for each shmat() made. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-22[PATCH] NOMMU: supply get_unmapped_area() to fix NOMMU SYSV SHMDavid Howells
Supply a get_unmapped_area() to fix NOMMU SYSV SHM support. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Adam Litke <agl@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-22[PATCH] FRV: fix unannotated variable declarationsDavid Howells
Fix unannotated variable declarations. Variables that have allocation section annotations (such as __meminitdata) on their definitions must also have them on their declarations as not doing so may affect the addressing mode used by the compiler and may result in a linker error. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Yasunori Goto <y-goto@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-22[PATCH] i386: disable local apic timer via command line or dmi quirkThomas Gleixner
The local APIC timer stops to work in deeper C-States. This is handled by the ACPI code and a broadcast mechanism in the clockevents / tick managment code. Some systems do not expose the deeper C-States to the kernel, but switch into deeper C-States behind the kernels back. This delays the local apic timer interrupts for ever and makes the systems unusable. Add a command line option to disable the local apic timer and a dmi quirk for known broken systems. Andi sayeth: While not wrong by itself i think it is still better to use some heuristic -- like "has battery in ACPI" With the DMI table if the problem is more wide spread we will just continue extending it. But anyways should be ok now for .21 although I'm not really happy with it. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: john stultz <johnstul@us.ibm.com> Grudgingly-acked-by: Andi Kleen <ak@suse.de> Cc: Len Brown <lenb@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-22[PATCH] swsusp: Fix SNAPSHOT_S2RAM ioctlRafael J. Wysocki
The SNAPSHOT_S2RAM ioctl does not disable the nonboot CPUs before entering the suspend, although it should do this. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-22[PATCH] Documentation/sysrq.txt: added short description for 'Q' (timerlist)Johannes Weiner
I added the 'Q' to list. A short description in the `Ok, so what can I use them for'-section, on when or why to use it would be nice! Signed-off-by: Johannes Weiner <hannes-kernel@saeurebad.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-22[PATCH] drivers/video/s3fb.c: fix a use-before-checkAdrian Bunk
NULL checks should be before the first dereference. Spotted by the Coverity checker. Signed-off-by: Adrian Bunk <bunk@stusta.de> Acked-by: Ondrej Zajicek <santiago@crfreenet.org> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-22Merge branch 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6Linus Torvalds
* 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6: i2c/ds1374: Check workqueue creation status i2c-i801: Restore the device state before leaving i2c-amd8111: Missed cleanup
2007-03-22Merge 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: [NETFILTER]: nat: avoid rerouting packets if only XFRM policy key changed [NETFILTER]: nf_conntrack_netlink: add missing dependency on NF_NAT [NET]: fix up misplaced inlines. [SCTP]: Correctly reset ssthresh when restarting association [BRIDGE]: Fix fdb RCU race [NET]: Fix fib_rules dump race [XFRM]: ipsecv6 needs a space when printing audit record. [X25] x25_forward_call(): fix NULL dereferences [SCTP]: Reset some transport and association variables on restart [SCTP]: Increment error counters on user requested HBs. [SCTP]: Clean up stale data during association restart [IrDA]: Calling ppp_unregister_channel() from process context [IrDA]: irttp_dup spin_lock initialisation [IrDA]: Delay needed when uploading firmware chunks
2007-03-22Merge branch 'for-linus' of ↵Linus Torvalds
master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband * 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband: IB/ipoib: Fix thinko in packet length checks IPoIB: Fix use-after-free in path_rec_completion() IB/ehca: Make scaling code work without CPU hotplug RDMA/cxgb3: Handle build_phys_page_list() failure in iwch_reregister_phys_mem() IB/ipath: Check return value of lookup_one_len IPoIB: Fix race in detaching from mcast group before attaching IPoIB/cm: Fix reaping of stale connections
2007-03-22[PATCH] i386: clockevents fix breakage on Geode/Cyrix PIT implementationsThomas Gleixner
The PIT has no dedicated mode for shut down. The only way to disable PIT is to put it into one shot mode. AMD implementations of PIT on Geode (also observed on Cyrix) are confused by an "empty" transition from CLOCK_EVT_MODE_UNUSED to CLOCK_EVT_MODE_SHUTDOWN, which puts the PIT into one shot mode momentarily. I realized after staring helpless at the bug report http://bugzilla.kernel.org/show_bug.cgi?id=8027 for quite a while, that the only change, which might influence the bogomips calibration, is the above transition during the PIT initialization. Avoiding the unnecessary switch to oneshot and later to periodic mode fixes the weird bogomips value and also the resulting slowness. The fix is confirmed on OLPC and another Geode based box. Note: this is unrelated to the Dual Core problem discussed here: http://lkml.org/lkml/2007/3/17/48 Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-23[CIFS] Allow reset of file to ATTR_NORMAL when archive bit not setSteve French
When a file had a dos attribute of 0x1 (readonly - but dos attribute of archive was not set) - doing chmod 0777 or equivalent would try to set a dos attribute of 0 (which some servers ignore) rather than ATTR_NORMAL (0x20) which most servers accept. Does not affect servers which support the CIFS Unix Extensions. Acked-by: Prasad Potluri <pvp@us.ibm.com> Acked-by: Shirish Pargaonkar <shirishp@us.ibm.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-03-22IB/ipoib: Fix thinko in packet length checksMichael S. Tsirkin
The packet length checks in ipoib are broken: we add 4 bytes (IPoIB encapsulation header) when sending a packet, not 20 bytes (hardware address length) to each packet. Therefore, if connected mode is enabled so that the interface MTU is larger than the multicast MTU, IPoIB may end up trying to send too-long multicast packets. For example, multicast is broken if a message of size 2048 bytes is sent on an interface with UD MTU 2048, because 2048 is bigger than the real limit of 2044 but the code tests against the wrong limit of 2060. This patch fixes <https://bugs.openfabrics.org/show_bug.cgi?id=418>, submitted by Scott Weitzenkamp <sweitzen@cisco.com>. Signed-off-by: Michael S. Tsirkin <mst@dev.mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-03-22IPoIB: Fix use-after-free in path_rec_completion()Michael S. Tsirkin
The connected mode code added the possibility that an neigh struct gets freed in the list_for_each_entry() loop in path_rec_completion(), which causes a use-after-free. Fix this by changing to the _safe variant of the list walking macro. This was spotted by the Coverity checker (CID 1567). Signed-off-by: Michael S. Tsirkin <mst@dev.mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-03-22IB/ehca: Make scaling code work without CPU hotplugJoachim Fenkes
eHCA scaling code must not depend on register_cpu_notifier() if CONFIG_HOTPLUG_CPU is not set, so put all related code into #ifdefs. Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-03-22RDMA/cxgb3: Handle build_phys_page_list() failure in iwch_reregister_phys_mem()Steve Wise
Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
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