user/sven/linux.git, branch v2.6.22.3

Linux 2.6.22.3

2007-08-15T16:25:39Z

CPUFREQ: ondemand: add a check to avoid negative load calculation

2007-08-15T16:25:10Z

Due to rounding and inexact jiffy accounting, idle_ticks can sometimes be higher than total_ticks. Make sure those cases are handled as zero load case. Signed-off-by: Venkatesh Pallipadi Signed-off-by: Dave Jones Signed-off-by: Greg Kroah-Hartman

CPUFREQ: ondemand: fix tickless accounting and software coordination bug

2007-08-15T16:25:10Z

With tickless kernel and software coordination os P-states, ondemand can look at wrong idle statistics. This can happen when ondemand sampling is happening on CPU 0 and due to software coordination sampling also looks at utilization of CPU 1. If CPU 1 is in tickless state at that moment, its idle statistics will not be uptodate and CPU 0 thinks CPU 1 is idle for less amount of time than it actually is. This can be resolved by looking at all the busy times of CPUs, which is accurate, even with tickless, and use that to determine idle time in a round about way (total time - busy time). Thanks to Arjan for originally reporting the ondemand bug on Lenovo T61. Signed-off-by: Venkatesh Pallipadi Signed-off-by: Dave Jones Signed-off-by: Greg Kroah-Hartman

pata_atiixp: add SB700 PCI ID

2007-08-15T16:25:10Z

[libata] pata_atiixp: add SB700 PCI ID From AMD. Signed-off-by: Jeff Garzik Cc: Chuck Ebbert Signed-off-by: Greg Kroah-Hartman

stifb: detect cards in double buffer mode more reliably

2007-08-15T16:25:10Z

Visualize-EG, Graffiti and A4450A graphics cards on PARISC can be configured in double-buffer and standard mode, but the stifb driver supports standard mode only. This patch detects double-buffered cards more reliable. It is a real bugfix for a very nasty problem for all parisc users which have wrongly configured their graphic card. The problem: The stifb graphics driver will not detect that the card is wrongly configured and then nevertheless just enables the graphics mode, which it shouldn't. In the end, the user will see no further updates / boot messages on the screen. We had documented this problem already on our FAQ (http://parisc-linux.org/faq/index.html#viseg "Why do I get corrupted graphics with my Vis-EG/Graffiti/A4450A card?") but people still run into this problem. So having this fix in as early as possible can help us. Signed-off-by: Helge Deller Signed-off-by: Antonino Daplas Cc: Kyle McMartin Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman

direct-io: fix error-path crashes

2007-08-15T16:25:10Z

Need to initialize map_bh.b_state to zero. Otherwise, in case of a faulty user-buffer its possible to go into dio_zero_block() and submit a page by mistake - since it checks for buffer_new(). http://marc.info/?l=linux-kernel&m=118551339032528&w=2 akpm: Linus had a (better) patch to just do a kzalloc() in there, but it got lost. Probably this version is better for -stable anwyay. Signed-off-by: Badari Pulavarty Acked-by: Joe Jin Acked-by: Zach Brown Cc: gurudas pai Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman

powerpc: Fix size check for hugetlbfs

2007-08-15T16:25:09Z

My "slices" address space management code that was added in 2.6.22 implementation of get_unmapped_area() doesn't properly check that the size is a multiple of the requested page size. This allows userland to create VMAs that aren't a multiple of the huge page size with hugetlbfs (since hugetlbfs entirely relies on get_unmapped_area() to do that checking) which leads to a kernel BUG() when such areas are torn down. Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Paul Mackerras Signed-off-by: Greg Kroah-Hartman

PPC: Revert "[POWERPC] Add 'mdio' to bus scan id list for platforms with QE UEC"

2007-08-15T16:25:09Z

This reverts commit 3baee955953957be5496cd28e9c544d9db214262. this was a mistake from the start; I added mdio type to the bus scan list early on in my ucc_geth migrate to phylib development, which is just pure wrong (the ucc_geth_mii driver creates the mii bus and the PHY layer handles PHY enumeration without translation). this accompanies commit 77926826f301fbd8ed96d3cd9ff17a5b59560dfb: Revert "[POWERPC] Don't complain if size-cells == 0 in prom_parse()" which was basically trying to hide a symptom of the original mistake this revert fixes. Signed-off-by: Kim Phillips Signed-off-by: Greg Kroah-Hartman

PPC: Revert "[POWERPC] Don't complain if size-cells == 0 in prom_parse()"

2007-08-15T16:25:09Z

This reverts commit fd6e9d3945ee122eb513ada8b17296d243c1ce5e. Having #size-cells == 0 in a node indicates that things under the node aren't directly accessible, and therefore we shouldn't try to translate addresses for devices under the node into CPU physical addresses. Some drivers, such as the nvram driver for powermacs, rely on of_address_to_resource failing if they are called for a node representing a device whose resources aren't directly accessible by the CPU. These drivers were broken by commit fd6e9d39, resulting in the "Lombard" powerbook hanging early in the boot process. stable team, this patch is equivalent to commit 77926826f301fbd8ed96d3cd9ff17a5b59560dfb Signed-off-by: Paul Mackerras Cc: Kim Phillips Signed-off-by: Greg Kroah-Hartman

ata_piix: update map 10b for ich8m

2007-08-15T16:25:09Z

Fix map entry 10b for ich8. It's [P0 P2 IDE IDE] like ich6 / ich6m. Signed-off-by: Tejun Heo Acked-by: Kristen Carlson Accardi Cc: Jeff Garzik Signed-off-by: Greg Kroah-Hartman