kernel.git/arch/ia64, branch linux-2.6.28.y

Build fix for __early_pfn_to_nid() undefined link error

2009-03-23T21:55:23Z

commit 334f85b647bc46ff4d27ace55aa65f44d6a2f4db upstream. ia64 only defines __early_pfn_to_nid() for SPARSEMEM && NUMA configurations, so the recent: commit: f2dbcfa738368c8a40d4a5f0b65dc9879577cb21 mm: clean up for early_pfn_to_nid() ends up with some link problems for certain configuration files. Fix arch/ia64/Kconfig to only define HAVE_ARCH_EARLY_PFN_TO_NID in the cases where we do provide this function. Signed-off-by: Tony Luck Signed-off-by: Greg Kroah-Hartman

mm: fix memmap init for handling memory hole

2009-03-17T00:31:58Z

commit cc2559bccc72767cb446f79b071d96c30c26439b upstream. Now, early_pfn_in_nid(PFN, NID) may returns false if PFN is a hole. and memmap initialization was not done. This was a trouble for sparc boot. To fix this, the PFN should be initialized and marked as PG_reserved. This patch changes early_pfn_in_nid() return true if PFN is a hole. Signed-off-by: KAMEZAWA Hiroyuki Reported-by: David Miller Tested-by: KOSAKI Motohiro Cc: Mel Gorman Cc: Heiko Carstens Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds Signed-off-by: Greg Kroah-Hartman

mm: clean up for early_pfn_to_nid()

2009-03-17T00:31:58Z

commit f2dbcfa738368c8a40d4a5f0b65dc9879577cb21 upstream. What's happening is that the assertion in mm/page_alloc.c:move_freepages() is triggering: BUG_ON(page_zone(start_page) != page_zone(end_page)); Once I knew this is what was happening, I added some annotations: if (unlikely(page_zone(start_page) != page_zone(end_page))) { printk(KERN_ERR "move_freepages: Bogus zones: " "start_page[%p] end_page[%p] zone[%p]\n", start_page, end_page, zone); printk(KERN_ERR "move_freepages: " "start_zone[%p] end_zone[%p]\n", page_zone(start_page), page_zone(end_page)); printk(KERN_ERR "move_freepages: " "start_pfn[0x%lx] end_pfn[0x%lx]\n", page_to_pfn(start_page), page_to_pfn(end_page)); printk(KERN_ERR "move_freepages: " "start_nid[%d] end_nid[%d]\n", page_to_nid(start_page), page_to_nid(end_page)); ... And here's what I got: move_freepages: Bogus zones: start_page[2207d0000] end_page[2207dffc0] zone[fffff8103effcb00] move_freepages: start_zone[fffff8103effcb00] end_zone[fffff8003fffeb00] move_freepages: start_pfn[0x81f600] end_pfn[0x81f7ff] move_freepages: start_nid[1] end_nid[0] My memory layout on this box is: [ 0.000000] Zone PFN ranges: [ 0.000000] Normal 0x00000000 -> 0x0081ff5d [ 0.000000] Movable zone start PFN for each node [ 0.000000] early_node_map[8] active PFN ranges [ 0.000000] 0: 0x00000000 -> 0x00020000 [ 0.000000] 1: 0x00800000 -> 0x0081f7ff [ 0.000000] 1: 0x0081f800 -> 0x0081fe50 [ 0.000000] 1: 0x0081fed1 -> 0x0081fed8 [ 0.000000] 1: 0x0081feda -> 0x0081fedb [ 0.000000] 1: 0x0081fedd -> 0x0081fee5 [ 0.000000] 1: 0x0081fee7 -> 0x0081ff51 [ 0.000000] 1: 0x0081ff59 -> 0x0081ff5d So it's a block move in that 0x81f600-->0x81f7ff region which triggers the problem. This patch: Declaration of early_pfn_to_nid() is scattered over per-arch include files, and it seems it's complicated to know when the declaration is used. I think it makes fix-for-memmap-init not easy. This patch moves all declaration to include/linux/mm.h After this, if !CONFIG_NODES_POPULATES_NODE_MAP && !CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID -> Use static definition in include/linux/mm.h else if !CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID -> Use generic definition in mm/page_alloc.c else -> per-arch back end function will be called. Signed-off-by: KAMEZAWA Hiroyuki Tested-by: KOSAKI Motohiro Reported-by: David Miller Cc: Mel Gorman Cc: Heiko Carstens Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds Signed-off-by: Greg Kroah-Hartman

PCI: return error on failure to read PCI ROMs

2009-02-12T17:50:35Z

commit 97c44836cdec1ea713a15d84098a1a908157e68f upstream. This patch makes the ROM reading code return an error to user space if the size of the ROM read is equal to 0. The patch also emits a warnings if the contents of the ROM are invalid, and documents the effects of the "enable" file on ROM reading. Signed-off-by: Timothy S. Nelson Acked-by: Alex Villacis-Lasso Signed-off-by: Jesse Barnes Signed-off-by: Greg Kroah-Hartman

IA64: Turn on CONFIG_HAVE_UNSTABLE_CLOCK

2009-01-25T00:41:36Z

commit 0773a6cf673316440999752e23f8c3d4f85e48b9 upstream. sched_clock() on ia64 is based on ar.itc, so is never completely synchronized between cpus. On some platforms (e.g. certain models of SGI Altix) it may be running at radically different frequencies. Based on a patch from Dimitri Sivanich which set this just for SN2 && GENERIC kernels ... it is needed for all ia64 machines. Signed-off-by: Tony Luck Signed-off-by: Greg Kroah-Hartman

Remove attribute((weak)) from sys_pipe/sys_pipe2

2009-01-18T18:43:51Z

commit 1134723e96f6e2abcf8bfd7a2d1c96fcc323ef35 upstream. Remove __attribute__((weak)) from common code sys_pipe implemantation. IA64, ALPHA, SUPERH (32bit) and SPARC (32bit) have own implemantations with the same name. Just rename them. For sys_pipe2 there is no architecture specific implementation. Cc: Richard Henderson Cc: David S. Miller Cc: Paul Mundt Cc: Tony Luck Signed-off-by: Heiko Carstens Signed-off-by: Greg Kroah-Hartman

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6

2008-12-16T00:30:22Z

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: Phonet: keep TX queue disabled when the device is off SCHED: netem: Correct documentation comment in code. netfilter: update rwlock initialization for nat_table netlabel: Compiler warning and NULL pointer dereference fix e1000e: fix double release of mutex IA64: HP_SIMETH needs to depend upon NET netpoll: fix race on poll_list resulting in garbage entry ipv6: silence log messages for locally generated multicast sungem: improve ethtool output with internal pcs and serdes tcp: tcp_vegas cong avoid fix sungem: Make PCS PHY support partially work again.

IA64: HP_SIMETH needs to depend upon NET

2008-12-10T23:24:50Z

From: Alexander Beregalov Signed-off-by: David S. Miller

[IA64] SN: prevent IRQ retargetting in request_irq()

2008-12-09T18:57:18Z

With the introduction of the generic affinity autoselector, irq_select_affinity(), IRQs are now being retargetted, using a default mask, via the request_irq() path. This results in all IRQs targetted at CPU 0. SN Altix assigns affinity in the SN PROM, and does not expect that to be changed as part of request_irq(). Set the IRQ_AFFINITY_SET flag to prevent request_irq() from resetting affinity. Signed-off-by: John Keller Signed-off-by: Tony Luck

[IA64] Clear up section mismatch with arch_unregister_cpu()

2008-12-09T18:08:44Z

The generic_defconfig has three section mismatches. This clears arch_unregister_cpu() Signed-off-by: Robin Holt Signed-off-by: Jack Steiner Signed-off-by: Tony Luck