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2008-09-29libata: reimplement link iteratorTejun Heo
Implement __ata_port_next_link() and reimplement __ata_port_for_each_link() and ata_port_for_each_link() using it. This removes relatively large inlined code and makes iteration easier to extend. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-09-29libata: make SCR access ops per-linkTejun Heo
Logically, SCR access ops should take @link; however, there was no compelling reason to convert all SCR access ops when adding @link abstraction as there's one-to-one mapping between a port and a non-PMP link. However, that assumption won't hold anymore with the scheduled addition of slave link. Make SCR access ops per-link. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-09-29sata_nv: reinstate nv_hardreset() for non generic controllersTejun Heo
Commit 2fd673ecf0378ddeeeb87b3605e50212e0c0ddc6 which tried to remove hardreset for generic accidentally removed it for all flavors as all others were inheriting from nv_generic_ops. This patch reinstates nv_hardreset() and puts it into nv_common_ops which all flavors inherit from. nv_generic_ops now inherits from nv_common_ops and overrides .hardreset to ATA_OP_NULL. While at it, explain why nv_hardreset and ATA_OP_NULL override are necessary. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-09-28[SCSI] qlogicpti: fix sg list traversal error in continuation entriesBoaz Harrosh
The current sg list traversal logic for the continuation entries doesn't advance the list pointer once all seven slots are used, so the next continuation entry (if there is one) wrongly begins again at the start of the sg list. Fix by advancing the sg pointer after the for_each_sg(). Reported-by: Meelis Roos <mroos@ut.ee> Cc: David Miller <davem@davemloft.net> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-09-28x86: mtrr_cleanup hole size should be less than half of chunk_size, v2Yinghai Lu
v2: should check with half of range0 size instead of chunk_size So don't have silly big hole. in hpa's case we could auto detect instead of adding mtrr_chunk_size in command line. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-09-27x86/iommu: use __GFP_ZERO instead of memset for GARTJoerg Roedel
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-09-27x86/iommu: convert GART need_flush to boolJoerg Roedel
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-09-27x86/iommu: make GART driver checkpatch cleanJoerg Roedel
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-09-27cdrom: update ioctl documentationMárton Németh
Correct copy-paste problem: CDROMCLOSETRAY is about closing the tray, not opening it. Signed-off-by: Márton Németh <nm127@freemail.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-09-27ide: note that IDE generic may prevent other drivers from attachingTejun Heo
Enabling IDE generic may prevent ATA controllers located on legacy ports from being attached to more proper driver or can prevent other controllers which share the IRQ from working. Note it in the help message. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: xerces8 <xerces8@butn.net> Cc: Jeff Garzik <jgarzik@pobox.com> Cc: stein@hermes.si [bart: s/will grab/may grab/ since Borislav has fixed PCI-case for .28] Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-09-27ide-tape: fix vendor stringsBorislav Petkov
Remove superfluous two bytes from each string buffer and add proper length format specifiers. Signed-off-by: Borislav Petkov <petkovbb@gmail.com> Tested-by: Mark de Wever <koraq@xs4all.nl> Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-09-27Swarm: Fix crash due to missing initializationRalf Baechle
If things are just right this will result in the hws[0]->parent being passed to ide_host_add() being non-zero and an ooops a little later. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-09-27x86: add mtrr_cleanup_debug command lineYinghai Lu
add mtrr_cleanup_debug to print out more info about layout Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Cc: Yinghai Lu <yhlu.kernel@gmail.com> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-09-27x86: mtrr_cleanup optimization, v2Yinghai Lu
fix hpa's t61 with 4g ram: change layout from (n - 1)*chunksize + chunk_size - NC to n*chunksize - NC Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-09-27x86: don't need to go to chunksize to 4GYinghai Lu
change back chunksize max to 2g otherwise will get strange layout in 2G ram system like 0 - 4g WB, 2040M - 2048M UC, 2048M - 4G NC instead of 0 - 2g WB, 2040M - 2048M UC Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-09-27[SSB] Initialise dma_mask for SSB_BUSTYPE_SSB devicesAurelien Jarno
For SSB_BUSTYPE_SSB type devices, we need to initialize dma_mask using coherent_dma_mask so that calls to dma_set_mask() succeed. It fixes the regression on the b44 driver introduced by commit f225763a7d6c92c4932dbd528437997078496fcc Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-09-27[MIPS] BCM47xx: Fix build error due to missing PCI functionsAurelien Jarno
This patch defines pcibios_map_irq() and pcibios_plat_dev_init() for the BCM47xx platform. It fixes the regression introduced by commit aab547ce0d1493d400b6468c521a0137cd8c1edf. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-09-27[MIPS] IP27: Switch to dynamic interrupt routing avoding panic on error.Ralf Baechle
pcibios_map_irq is no way of returning an error but on IP27 an interrupt is possibly not routable when running out of resources. So do the interrupt routing at pcibios_enable_device time. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-09-27[MIPS] au1000: Make sure GPIO value is zero or oneBruno Randolf
David Brownell <david-b@pacbell.net> wrote: > The problem is that "value" is zero-or-nonzero. > This code wrongly assumes it's zero-or-one. > Possible fix: "((!!value) << gpio)". Signed-off-by: Bruno Randolf <br1@einfach.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-09-27m32r/kernel/: cleanupsAdrian Bunk
This patch contains the following cleanups: - make the following needlessly global code static: - entry.S: resume_userspace - process.c: pm_idle - process.c: default_idle() - smp.c: send_IPI_allbutself() - time.c: timer_interrupt() - time.c: struct irq0 - traps.c: set_eit_vector_entries() - traps.c: kstack_depth_to_print - traps.c: show_trace() - traps.c: die_lock - remove the following unused code: - head.S: startup_32 - process.c: hlt_counter - process.c: disable_hlt() - process.c: enable_hlt() - process.c: dump_task_regs() - remove the following variables and their usages since they were always 0: - irq.c: irq_err_count - irq.c: irq_mis_count Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>
2008-09-27m32r: export __ndelayAdrian Bunk
ERROR: "__ndelay" [drivers/spi/spi_bitbang.ko] undefined! Reported-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>
2008-09-27m32r: export empty_zero_pageAdrian Bunk
ERROR: "empty_zero_page" [fs/ext4/ext4dev.ko] undefined! Reported-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>
2008-09-27m32r: don't offer CONFIG_ISAAdrian Bunk
As far as I know no M32R hardware actually has ISA slots. And ISA drivers don't compile on M32R. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>
2008-09-27m32r: remove the unused NOHIGHMEM optionAdrian Bunk
Remove the unused NOHIGHMEM option. Reviewed-by: Robert P. J. Day <rpjday@crashcourse.ca> Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>
2008-09-27file capabilities: uninline cap_safe_niceSerge E. Hallyn
This reduces the kernel size by 289 bytes. Signed-off-by: Serge E. Hallyn <serue@us.ibm.com> Acked-by: Andrew G. Morgan <morgan@kernel.org> Signed-off-by: James Morris <jmorris@namei.org>
2008-09-26[ARM] pxa: make "gpio_leds" staticRussell King
Magician's "gpio_leds" was global, but actually is supposed to be private. Make it so. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-09-26[ARM] pxa/pcm027: convert to use new MFP APIEric Miao
Signed-off-by: Eric Miao <eric.miao@marvell.com> Acked-by: Guennadi Liakhovetski <g.liakhovetski@pengutronix.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-09-26[ARM] pxa/lpd270: use new .lcd_conn to specify LCD infoEric Miao
Signed-off-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-09-26[ARM] pxa/lpd270: convert to use new MFP APIEric Miao
Signed-off-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-09-26[ARM] pxa/idp: remove the unnecessary idp_init_irq()Eric Miao
TOUCH_PANEL_IRQ is never referenced, and set_irq_type() shouldn't be called in this way, remove it, as well as the idp_init_irq(), and use pxa25x_init_irq() instead. Signed-off-by: Eric Miao <eric.miao@marvell.com> Cc: Cliff Brake <cliff.brake@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-09-26[ARM] pxa/idp: make use of "lcd_conn", add LCD pin configurationsEric Miao
Signed-off-by: Eric Miao <eric.miao@marvell.com> Cc: Cliff Brake <cliff.brake@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-09-26[ARM] pxa/idp: convert to use new MFP APIEric Miao
Signed-off-by: Eric Miao <eric.miao@marvell.com> Cc: Cliff Brake <cliff.brake@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-09-26[ARM] pxa/colibri: convert to use new MFP APIEric Miao
Signed-off-by: Eric Miao <eric.miao@marvell.com> Cc: Daniel Mack <daniel@caiaq.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-09-26[ARM] pxa/lubbock: add missing MFP pin configurationsEric Miao
Signed-off-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-09-26[ARM] pxa: better MFP low power state support for pxa25x/pxa27xEric Miao
When configured as a specific low power state: MFP_LPM_DRIVE_LOW, MFP_LPM_DRIVE_HIGH, the corresponding GPDR register bit during low power mode shall be re-configured as output (if they are not configured so), thus the PGSRx bits can output. Create an additional low power values GPDR registers, and properly save/restore the GAFR + GPDR registers when doing suspend/resume. Signed-off-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-09-26[ARM] pxa: fix typo in pxa25x MFP definitionsEric Miao
Signed-off-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-09-26[ARM] 5238/2: Very basic Palm Zire 72 supportSergey Lapin
This patch contains very basic support of Palm Zire 72. Signed-off-by: Sergey Lapin <slapin@ossfans.org> Acked-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-09-26Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: ALSA: remove unneeded power_mutex lock in snd_pcm_drop ALSA: fix locking in snd_pcm_open*() and snd_rawmidi_open*()
2008-09-26Merge git://oss.sgi.com:8090/xfs/linux-2.6Linus Torvalds
* git://oss.sgi.com:8090/xfs/linux-2.6: [XFS] Remove xfs_iext_irec_compact_full() [XFS] Fix extent list corruption in xfs_iext_irec_compact_full().
2008-09-26ARM: Delete ARM's own cnt32_to_63.hDavid Howells
Delete ARM's own cnt32_to_63.h as the copy in include/linux/ should now be used instead. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-09-26kgdboc,tty: Fix tty polling search to use name correctlyJason Wessel
The tty_find_polling_driver() routine did not correctly check the base part of the tty name. This can lead to kgdboc selecting an incorrect driver, as well as accepting a completely invalid tty such as "echo ffff0 > /sys/module/kgdboc/parameters/kgdboc". Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
2008-09-26kgdb, x86_64: fix PS CS SS registers in gdb serialJason Wessel
On x86_64 the gdb serial register structure defines the PS (also known as eflags), CS and SS registers as 4 bytes entities. This patch splits the x86_64 regnames enum into a 32 and 64 version to account for the 32 bit entities in the gdb serial packets. Also the program counter is properly filled in for the sleeping threads. Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
2008-09-26kgdb, x86_64: gdb serial has BX and DX reversedJason Wessel
The BX and DX registers in the gdb serial register packet need to be flipped for gdb to receive the correct data. Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
2008-09-26kgdb, x86, arm, mips, powerpc: ignore user space single steppingJason Wessel
On the x86 arch, user space single step exceptions should be ignored if they occur in the kernel space, such as ptrace stepping through a system call. First check if it is kgdb that is executing a single step, then ensure it is not an accidental traversal into the user space, while in kgdb, any other time the TIF_SINGLESTEP is set, kgdb should ignore the exception. On x86, arm, mips and powerpc, the kgdb_contthread usage was inconsistent with the way single stepping is implemented in the kgdb core. The arch specific stub should always set the kgdb_cpu_doing_single_step correctly if it is single stepping. This allows kgdb to correctly process an instruction steps if ptrace happens to be requesting an instruction step over a system call. Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
2008-09-26kgdb: could not write to the last of valid memory with kgdbAtsuo Igarashi
On the ARM architecture, kgdb will crash the kernel if the last byte of valid memory is written due to a flush_icache_range flushing beyond the memory boundary. Signed-off-by: Atsuo Igarashi <atsuo_igarashi@tripeaks.co.jp> Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
2008-09-26Merge branch 'linux-next' of git://git.infradead.org/~dedekind/ubifs-2.6Linus Torvalds
* 'linux-next' of git://git.infradead.org/~dedekind/ubifs-2.6: UBIFS: fix printk format warnings UBIFS: remove incorrect assert UBIFS: TNC / GC race fixes UBIFS: create the name of the background thread in every case
2008-09-26GFS2: Support for I/O barriersSteven Whitehouse
This patch adds barrier support to GFS2. There is not a lot of change really... we just add the barrier flag when we write journal header blocks. If the underlying device refuses to support them, we fall back to the previous way of doing things (wait for the I/O and hope) since there is nothing else we can do. There is no user configuration, barriers will always be on unless the device refuses to support them. This seems a reasonable solution to me since this is a correctness issue. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2008-09-25[ARM] Orion: Add Buffalo Linkstation Mini power-off methodAlexey Kopytko
This patch adds specific power-off method for Buffalo Linkstation Mini board. The board has a hardware switch which should be monitored from userspace. When the switch is in OFF position the board should be rebooted and U-Boot will start in an idle mode and wait for the user to move the power switch back to ON position. Signed-off-by: Alexey Kopytko <alexey@kopytko.ru> Signed-off-by: Nicolas Pitre <nico@marvell.com>
2008-09-26[XFS] Remove xfs_iext_irec_compact_full()Lachlan McIlroy
Yet another bug was found in xfs_iext_irec_compact_full() and while the source of the bug was found it wasn't an easy task to track it down because the conditions are very difficult to reproduce. A HUGE thank-you goes to Russell Cattelan and Eric Sandeen for their significant effort in tracking down the source of this corruption. xfs_iext_irec_compact_full() and xfs_iext_irec_compact_pages() are almost identical - they both compact indirect extent lists by moving extents from subsequent buffers into earlier ones. xfs_iext_irec_compact_pages() only moves extents if all of the extents in the next buffer will fit into the empty space in the buffer before it. xfs_iext_irec_compact_full() will go a step further and move part of the next buffer if all the extents wont fit. It will then shift the remaining extents in the next buffer up to the start of the buffer. The bug here was that we did not update er_extoff and this caused extent list corruption. It does not appear that this extra functionality gains us much. Calling xfs_iext_irec_compact_pages() instead will do a good enough job at compacting the indirect list and will be quicker too. For the case in xfs_iext_indirect_to_direct() the total number of extents in the indirect list will fit into one buffer so we will never need the extra functionality of xfs_iext_irec_compact_full() there. Also xfs_iext_irec_compact_pages() doesn't need to do a memmove() (the buffers will never overlap) so we don't want the performance hit that can incur. SGI-PV: 987159 SGI-Modid: xfs-linux-melb:xfs-kern:32166a Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
2008-09-26[XFS] Fix extent list corruption in xfs_iext_irec_compact_full().Lachlan McIlroy
If we don't move all the records from the next buffer into the current buffer then we need to update the er_extoff field of the next buffer as we shift the remaining records to the start of the buffer. SGI-PV: 987159 SGI-Modid: xfs-linux-melb:xfs-kern:32165a Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: Eric Sandeen <sandeen@sandeen.net> Signed-off-by: Russell Cattelan <cattelan@thebarn.com>