From 8ee4dc393b90c4bce313ef1044d068b9e68e1b5f Mon Sep 17 00:00:00 2001 From: Tony Luck Date: Thu, 10 May 2007 09:35:30 -0700 Subject: [IA64] typo s/kenrel/kernel/ Spotted by alert reader Robert Day. Signed-off-by: Tony Luck --- arch/ia64/kernel/err_inject.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/ia64') diff --git a/arch/ia64/kernel/err_inject.c b/arch/ia64/kernel/err_inject.c index 6a49600cf33..b642648cc2a 100644 --- a/arch/ia64/kernel/err_inject.c +++ b/arch/ia64/kernel/err_inject.c @@ -291,5 +291,5 @@ module_init(err_inject_init); module_exit(err_inject_exit); MODULE_AUTHOR("Fenghua Yu "); -MODULE_DESCRIPTION("MC error injection kenrel sysfs interface"); +MODULE_DESCRIPTION("MC error injection kernel sysfs interface"); MODULE_LICENSE("GPL"); -- cgit v1.2.3 From 34ef30ca4a0b7f8c0efc97a4a1355a4c4300c2ff Mon Sep 17 00:00:00 2001 From: Tony Luck Date: Thu, 10 May 2007 09:39:41 -0700 Subject: [IA64] Fix warnings resulting from type-checking in dev_dbg() Lots of places where we passed a "struct pci_device *" rather than a "struct device *". One place where we used a "%s" in the format, but forgot to provide an argument. Acked-by: John Keller Signed-off-by: Tony Luck --- arch/ia64/sn/kernel/io_common.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/ia64') diff --git a/arch/ia64/sn/kernel/io_common.c b/arch/ia64/sn/kernel/io_common.c index d48bcd83253..7ed72d3faf7 100644 --- a/arch/ia64/sn/kernel/io_common.c +++ b/arch/ia64/sn/kernel/io_common.c @@ -364,7 +364,7 @@ void sn_bus_store_sysdata(struct pci_dev *dev) element = kzalloc(sizeof(struct sysdata_el), GFP_KERNEL); if (!element) { - dev_dbg(dev, "%s: out of memory!\n", __FUNCTION__); + dev_dbg(&dev->dev, "%s: out of memory!\n", __FUNCTION__); return; } element->sysdata = SN_PCIDEV_INFO(dev); -- cgit v1.2.3 From 472118e63de7938c89f0f4fd3e0a80986e4c600f Mon Sep 17 00:00:00 2001 From: Tony Luck Date: Thu, 10 May 2007 09:44:42 -0700 Subject: [IA64] Wire up epoll_pwait and utimensat Another day, another pair of new system calls. Signed-off-by: Tony Luck --- arch/ia64/kernel/entry.S | 2 ++ 1 file changed, 2 insertions(+) (limited to 'arch/ia64') diff --git a/arch/ia64/kernel/entry.S b/arch/ia64/kernel/entry.S index b50bf208678..144b056282a 100644 --- a/arch/ia64/kernel/entry.S +++ b/arch/ia64/kernel/entry.S @@ -1583,5 +1583,7 @@ sys_call_table: data8 sys_vmsplice data8 sys_ni_syscall // reserved for move_pages data8 sys_getcpu + data8 sys_epoll_pwait // 1305 + data8 sys_utimensat .org sys_call_table + 8*NR_syscalls // guard against failures to increase NR_syscalls -- cgit v1.2.3 From b9ae3bd255c3e25880b60a997f1b34ad9535b249 Mon Sep 17 00:00:00 2001 From: Tony Luck Date: Thu, 10 May 2007 11:47:38 -0700 Subject: [IA64] more warning cleanups arch/ia64/sn/kernel/xpc_partition.c:578: warning: long unsigned int format, different type arg (arg 3) arch/ia64/sn/kernel/xpnet.c:349: warning: int format, different type arg (arg 7) arch/ia64/sn/kernel/xpnet.c:349: warning: int format, different type arg (arg 8) Signed-off-by: Tony Luck --- arch/ia64/sn/kernel/xpc_partition.c | 2 +- arch/ia64/sn/kernel/xpnet.c | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-) (limited to 'arch/ia64') diff --git a/arch/ia64/sn/kernel/xpc_partition.c b/arch/ia64/sn/kernel/xpc_partition.c index 57c723f5cba..7ba403232cb 100644 --- a/arch/ia64/sn/kernel/xpc_partition.c +++ b/arch/ia64/sn/kernel/xpc_partition.c @@ -574,7 +574,7 @@ xpc_update_partition_info(struct xpc_partition *part, u8 remote_rp_version, u64 remote_vars_pa, struct xpc_vars *remote_vars) { part->remote_rp_version = remote_rp_version; - dev_dbg(xpc_part, " remote_rp_version = 0x%016lx\n", + dev_dbg(xpc_part, " remote_rp_version = 0x%016x\n", part->remote_rp_version); part->remote_rp_stamp = *remote_rp_stamp; diff --git a/arch/ia64/sn/kernel/xpnet.c b/arch/ia64/sn/kernel/xpnet.c index 88fad85ceef..da721353097 100644 --- a/arch/ia64/sn/kernel/xpnet.c +++ b/arch/ia64/sn/kernel/xpnet.c @@ -343,8 +343,8 @@ xpnet_dev_open(struct net_device *dev) enum xpc_retval ret; - dev_dbg(xpnet, "calling xpc_connect(%d, 0x%p, NULL, %ld, %ld, %d, " - "%d)\n", XPC_NET_CHANNEL, xpnet_connection_activity, + dev_dbg(xpnet, "calling xpc_connect(%d, 0x%p, NULL, %ld, %ld, %ld, " + "%ld)\n", XPC_NET_CHANNEL, xpnet_connection_activity, XPNET_MSG_SIZE, XPNET_MSG_NENTRIES, XPNET_MAX_KTHREADS, XPNET_MAX_IDLE_KTHREADS); -- cgit v1.2.3 From 9a86bbb90f3c42e10fce2b9634961ec18f5ca2cb Mon Sep 17 00:00:00 2001 From: Tony Luck Date: Thu, 10 May 2007 11:57:58 -0700 Subject: [IA64] Fix - Section mismatch: reference to .init.data:mvec_name machvec_init() should be __init. And then so should hwsw_init(). Signed-off-by: Tony Luck --- arch/ia64/hp/common/hwsw_iommu.c | 2 +- arch/ia64/kernel/machvec.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'arch/ia64') diff --git a/arch/ia64/hp/common/hwsw_iommu.c b/arch/ia64/hp/common/hwsw_iommu.c index 2153bcacbe6..94e57109fad 100644 --- a/arch/ia64/hp/common/hwsw_iommu.c +++ b/arch/ia64/hp/common/hwsw_iommu.c @@ -63,7 +63,7 @@ use_swiotlb (struct device *dev) return dev && dev->dma_mask && !hwiommu_dma_supported(dev, *dev->dma_mask); } -void +void __init hwsw_init (void) { /* default to a smallish 2MB sw I/O TLB */ diff --git a/arch/ia64/kernel/machvec.c b/arch/ia64/kernel/machvec.c index 9620822270a..13df337508e 100644 --- a/arch/ia64/kernel/machvec.c +++ b/arch/ia64/kernel/machvec.c @@ -35,7 +35,7 @@ lookup_machvec (const char *name) return 0; } -void +void __init machvec_init (const char *name) { struct ia64_machine_vector *mv; -- cgit v1.2.3 From 34eac2abcba1c07c47bfff86701a4f80f5553fa6 Mon Sep 17 00:00:00 2001 From: Tony Luck Date: Thu, 10 May 2007 13:20:19 -0700 Subject: [IA64] mca.c:121: warning: 'cpe_poll_timer' defined but not used Only shows up while building sim_defconfig because CONFIG_ACPI=n there, and all of the uses of cpe_poll_timer are inside #ifdef CONFIG_ACPI. Signed-off-by: Tony Luck --- arch/ia64/kernel/mca.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'arch/ia64') diff --git a/arch/ia64/kernel/mca.c b/arch/ia64/kernel/mca.c index f8ae709de0b..26814de6c29 100644 --- a/arch/ia64/kernel/mca.c +++ b/arch/ia64/kernel/mca.c @@ -118,7 +118,9 @@ static ia64_mc_info_t ia64_mc_info; #define CPE_HISTORY_LENGTH 5 #define CMC_HISTORY_LENGTH 5 +#ifdef CONFIG_ACPI static struct timer_list cpe_poll_timer; +#endif static struct timer_list cmc_poll_timer; /* * This variable tells whether we are currently in polling mode. -- cgit v1.2.3 From 25d61578daae697c4a0eb817f42a868af9824f82 Mon Sep 17 00:00:00 2001 From: John Keller Date: Thu, 10 May 2007 22:42:44 -0700 Subject: [IA64] SN: validate smp_affinity mask on intr redirect On SN, only allow one bit to be set in the smp_affinty mask when redirecting an interrupt. Currently setting multiple bits is allowed, but only the first bit is used in determining the CPU to redirect to. This has caused confusion among some customers. [akpm@linux-foundation.org: fixes] Signed-off-by: John Keller Signed-off-by: Andrew Morton Signed-off-by: Tony Luck --- arch/ia64/kernel/irq.c | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'arch/ia64') diff --git a/arch/ia64/kernel/irq.c b/arch/ia64/kernel/irq.c index ce49c85c928..b4c239685d2 100644 --- a/arch/ia64/kernel/irq.c +++ b/arch/ia64/kernel/irq.c @@ -104,6 +104,17 @@ void set_irq_affinity_info (unsigned int irq, int hwid, int redir) irq_redir[irq] = (char) (redir & 0xff); } } + +bool is_affinity_mask_valid(cpumask_t cpumask) +{ + if (ia64_platform_is("sn2")) { + /* Only allow one CPU to be specified in the smp_affinity mask */ + if (cpus_weight(cpumask) != 1) + return false; + } + return true; +} + #endif /* CONFIG_SMP */ #ifdef CONFIG_HOTPLUG_CPU -- cgit v1.2.3 From cdc7dbdfe6edac177acb32e4ca56b525d0743fe7 Mon Sep 17 00:00:00 2001 From: Anil S Keshavamurthy Date: Fri, 11 May 2007 09:38:40 -0700 Subject: [IA64] fix Kprobes reentrancy In case of reentrance i.e when a probe handler calls a functions which inturn has a probe, we save a previous kprobe information and just single step the reentrant probe without calling the actual probe handler. During this reentracy period, if an interrupt occurs and if probe happens to trigger in the inturrupt path, then we were corrupting the previous kprobe( as we were overriding the previous kprobe info) info their by crashing the system. This patch fixes this issues by having a an array of previous kprobe info struct(with the array size of 2). This similar technique is not needed on i386 and x86_64 because by default interrupts are turn off in the break/int3 exception handler. Signed-off-by: Anil S Keshavamurthy Signed-off-by: Andrew Morton Signed-off-by: Tony Luck --- arch/ia64/kernel/kprobes.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) (limited to 'arch/ia64') diff --git a/arch/ia64/kernel/kprobes.c b/arch/ia64/kernel/kprobes.c index 4f5fd0960ba..72e593e9405 100644 --- a/arch/ia64/kernel/kprobes.c +++ b/arch/ia64/kernel/kprobes.c @@ -370,14 +370,18 @@ static int __kprobes valid_kprobe_addr(int template, int slot, static void __kprobes save_previous_kprobe(struct kprobe_ctlblk *kcb) { - kcb->prev_kprobe.kp = kprobe_running(); - kcb->prev_kprobe.status = kcb->kprobe_status; + unsigned int i; + i = atomic_add_return(1, &kcb->prev_kprobe_index); + kcb->prev_kprobe[i-1].kp = kprobe_running(); + kcb->prev_kprobe[i-1].status = kcb->kprobe_status; } static void __kprobes restore_previous_kprobe(struct kprobe_ctlblk *kcb) { - __get_cpu_var(current_kprobe) = kcb->prev_kprobe.kp; - kcb->kprobe_status = kcb->prev_kprobe.status; + unsigned int i; + i = atomic_sub_return(1, &kcb->prev_kprobe_index); + __get_cpu_var(current_kprobe) = kcb->prev_kprobe[i].kp; + kcb->kprobe_status = kcb->prev_kprobe[i].status; } static void __kprobes set_current_kprobe(struct kprobe *p, -- cgit v1.2.3 From 2bd62a40f63bd628c43a2f3637b252d0967659b0 Mon Sep 17 00:00:00 2001 From: Christoph Lameter Date: Thu, 10 May 2007 22:42:53 -0700 Subject: [IA64] Quicklist support for IA64 IA64 is the origin of the quicklist implementation. So cut out the pieces that are now in core code and modify the functions called. Signed-off-by: Christoph Lameter Signed-off-by: Andrew Morton Signed-off-by: Tony Luck --- arch/ia64/Kconfig | 4 ++++ arch/ia64/mm/contig.c | 2 +- arch/ia64/mm/discontig.c | 2 +- arch/ia64/mm/init.c | 51 ------------------------------------------------ 4 files changed, 6 insertions(+), 53 deletions(-) (limited to 'arch/ia64') diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig index 6e41471449c..de1bff65996 100644 --- a/arch/ia64/Kconfig +++ b/arch/ia64/Kconfig @@ -31,6 +31,10 @@ config ZONE_DMA def_bool y depends on !IA64_SGI_SN2 +config QUICKLIST + bool + default y + config MMU bool default y diff --git a/arch/ia64/mm/contig.c b/arch/ia64/mm/contig.c index 44ce5ed9444..7ac8592a35b 100644 --- a/arch/ia64/mm/contig.c +++ b/arch/ia64/mm/contig.c @@ -88,7 +88,7 @@ void show_mem(void) printk(KERN_INFO "%d pages shared\n", total_shared); printk(KERN_INFO "%d pages swap cached\n", total_cached); printk(KERN_INFO "Total of %ld pages in page table cache\n", - pgtable_quicklist_total_size()); + quicklist_total_size()); printk(KERN_INFO "%d free buffer pages\n", nr_free_buffer_pages()); } diff --git a/arch/ia64/mm/discontig.c b/arch/ia64/mm/discontig.c index 94844442812..38085ac1833 100644 --- a/arch/ia64/mm/discontig.c +++ b/arch/ia64/mm/discontig.c @@ -561,7 +561,7 @@ void show_mem(void) printk(KERN_INFO "%d pages shared\n", total_shared); printk(KERN_INFO "%d pages swap cached\n", total_cached); printk(KERN_INFO "Total of %ld pages in page table cache\n", - pgtable_quicklist_total_size()); + quicklist_total_size()); printk(KERN_INFO "%d free buffer pages\n", nr_free_buffer_pages()); } diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c index cffb1e8325e..c14abefabaf 100644 --- a/arch/ia64/mm/init.c +++ b/arch/ia64/mm/init.c @@ -39,9 +39,6 @@ DEFINE_PER_CPU(struct mmu_gather, mmu_gathers); -DEFINE_PER_CPU(unsigned long *, __pgtable_quicklist); -DEFINE_PER_CPU(long, __pgtable_quicklist_size); - extern void ia64_tlb_init (void); unsigned long MAX_DMA_ADDRESS = PAGE_OFFSET + 0x100000000UL; @@ -56,54 +53,6 @@ EXPORT_SYMBOL(vmem_map); struct page *zero_page_memmap_ptr; /* map entry for zero page */ EXPORT_SYMBOL(zero_page_memmap_ptr); -#define MIN_PGT_PAGES 25UL -#define MAX_PGT_FREES_PER_PASS 16L -#define PGT_FRACTION_OF_NODE_MEM 16 - -static inline long -max_pgt_pages(void) -{ - u64 node_free_pages, max_pgt_pages; - -#ifndef CONFIG_NUMA - node_free_pages = nr_free_pages(); -#else - node_free_pages = node_page_state(numa_node_id(), NR_FREE_PAGES); -#endif - max_pgt_pages = node_free_pages / PGT_FRACTION_OF_NODE_MEM; - max_pgt_pages = max(max_pgt_pages, MIN_PGT_PAGES); - return max_pgt_pages; -} - -static inline long -min_pages_to_free(void) -{ - long pages_to_free; - - pages_to_free = pgtable_quicklist_size - max_pgt_pages(); - pages_to_free = min(pages_to_free, MAX_PGT_FREES_PER_PASS); - return pages_to_free; -} - -void -check_pgt_cache(void) -{ - long pages_to_free; - - if (unlikely(pgtable_quicklist_size <= MIN_PGT_PAGES)) - return; - - preempt_disable(); - while (unlikely((pages_to_free = min_pages_to_free()) > 0)) { - while (pages_to_free--) { - free_page((unsigned long)pgtable_quicklist_alloc()); - } - preempt_enable(); - preempt_disable(); - } - preempt_enable(); -} - void lazy_mmu_prot_update (pte_t pte) { -- cgit v1.2.3