From 3e6cb2d38a9c9758170813497a860c64543643d5 Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Tue, 21 Feb 2006 18:32:14 +0000 Subject: [MIPS] Use "=R" constraint to avoid compiler errors in cmpxchg(). Signed-off-by: Ralf Baechle --- include/asm-mips/system.h | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'include') diff --git a/include/asm-mips/system.h b/include/asm-mips/system.h index e8e5d4143377..ddae9bae31af 100644 --- a/include/asm-mips/system.h +++ b/include/asm-mips/system.h @@ -322,7 +322,7 @@ static inline unsigned long __cmpxchg_u32(volatile int * m, unsigned long old, #endif "2: \n" " .set pop \n" - : "=&r" (retval), "=m" (*m) + : "=&r" (retval), "=R" (*m) : "R" (*m), "Jr" (old), "Jr" (new) : "memory"); } else if (cpu_has_llsc) { @@ -342,7 +342,7 @@ static inline unsigned long __cmpxchg_u32(volatile int * m, unsigned long old, #endif "2: \n" " .set pop \n" - : "=&r" (retval), "=m" (*m) + : "=&r" (retval), "=R" (*m) : "R" (*m), "Jr" (old), "Jr" (new) : "memory"); } else { @@ -379,7 +379,7 @@ static inline unsigned long __cmpxchg_u64(volatile int * m, unsigned long old, #endif "2: \n" " .set pop \n" - : "=&r" (retval), "=m" (*m) + : "=&r" (retval), "=R" (*m) : "R" (*m), "Jr" (old), "Jr" (new) : "memory"); } else if (cpu_has_llsc) { @@ -397,7 +397,7 @@ static inline unsigned long __cmpxchg_u64(volatile int * m, unsigned long old, #endif "2: \n" " .set pop \n" - : "=&r" (retval), "=m" (*m) + : "=&r" (retval), "=R" (*m) : "R" (*m), "Jr" (old), "Jr" (new) : "memory"); } else { -- cgit v1.2.1 From 9b6695a8adfe0916e81ddd810a5b9db3eb8b0e46 Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Thu, 23 Feb 2006 12:23:27 +0000 Subject: [MIPS] SMP: Fix initialization order bug. A recent change requires cpu_possible_map to be initialized before smp_sched_init() but most MIPS platforms were initializing their processors in the prom_prepare_cpus callback of smp_prepare_cpus. The simple fix of calling prom_prepare_cpus from one of the earlier SMP initialization hooks doesn't work well either since IPIs may require init_IRQ() to have completed, so bit the bullet and split prom_prepare_cpus into two initialization functions, plat_smp_setup which is called early from setup_arch and plat_prepare_cpus called where prom_prepare_cpus used to be called. Signed-off-by: Ralf Baechle --- include/asm-mips/smp.h | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/asm-mips/smp.h b/include/asm-mips/smp.h index 5618f1e12f40..75c6fe7c2126 100644 --- a/include/asm-mips/smp.h +++ b/include/asm-mips/smp.h @@ -58,7 +58,9 @@ static inline int num_booting_cpus(void) return cpus_weight(cpu_callout_map); } -/* These are defined by the board-specific code. */ +/* + * These are defined by the board-specific code. + */ /* * Cause the function described by call_data to be executed on the passed @@ -79,7 +81,12 @@ extern void prom_boot_secondary(int cpu, struct task_struct *idle); extern void prom_init_secondary(void); /* - * Detect available CPUs, populate phys_cpu_present_map before smp_init + * Populate cpu_possible_map before smp_init, called from setup_arch. + */ +extern void plat_smp_setup(void); + +/* + * Called after init_IRQ but before __cpu_up. */ extern void prom_prepare_cpus(unsigned int max_cpus); -- cgit v1.2.1 From 92f22c183cd669c8575767fede8fe43bb4f7bce9 Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Thu, 23 Feb 2006 14:10:53 +0000 Subject: [MIPS] Fix atomic*_sub_if_positive return value. Reported and initial fix by Thomas Koeller , rewritten by me. Signed-off-by: Ralf Baechle --- include/asm-mips/atomic.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'include') diff --git a/include/asm-mips/atomic.h b/include/asm-mips/atomic.h index 654b97d3e13a..2c8b853376c9 100644 --- a/include/asm-mips/atomic.h +++ b/include/asm-mips/atomic.h @@ -250,7 +250,10 @@ static __inline__ int atomic_sub_if_positive(int i, atomic_t * v) " subu %0, %1, %3 \n" " bltz %0, 1f \n" " sc %0, %2 \n" + " .set noreorder \n" " beqzl %0, 1b \n" + " subu %0, %1, %3 \n" + " .set reorder \n" " sync \n" "1: \n" " .set mips0 \n" @@ -266,7 +269,10 @@ static __inline__ int atomic_sub_if_positive(int i, atomic_t * v) " subu %0, %1, %3 \n" " bltz %0, 1f \n" " sc %0, %2 \n" + " .set noreorder \n" " beqz %0, 1b \n" + " subu %0, %1, %3 \n" + " .set reorder \n" " sync \n" "1: \n" " .set mips0 \n" @@ -598,7 +604,10 @@ static __inline__ long atomic64_sub_if_positive(long i, atomic64_t * v) " dsubu %0, %1, %3 \n" " bltz %0, 1f \n" " scd %0, %2 \n" + " .set noreorder \n" " beqzl %0, 1b \n" + " dsubu %0, %1, %3 \n" + " .set reorder \n" " sync \n" "1: \n" " .set mips0 \n" @@ -614,7 +623,10 @@ static __inline__ long atomic64_sub_if_positive(long i, atomic64_t * v) " dsubu %0, %1, %3 \n" " bltz %0, 1f \n" " scd %0, %2 \n" + " .set noreorder \n" " beqz %0, 1b \n" + " dsubu %0, %1, %3 \n" + " .set reorder \n" " sync \n" "1: \n" " .set mips0 \n" -- cgit v1.2.1 From 752c1f4c78fe86d0fd6497387f763306b0d8fc53 Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Mon, 27 Feb 2006 13:00:40 -0800 Subject: [IPSEC]: Kill post_input hook and do NAT-T in esp_input directly The only reason post_input exists at all is that it gives us the potential to adjust the checksums incrementally in future which we ought to do. However, after thinking about it for a bit we can adjust the checksums without using this post_input stuff at all. The crucial point is that only the inner-most NAT-T SA needs to be considered when adjusting checksums. What's more, the checksum adjustment comes down to a single u32 due to the linearity of IP checksums. We just happen to have a spare u32 lying around in our skb structure :) When ip_summed is set to CHECKSUM_NONE on input, the value of skb->csum is currently unused. All we have to do is to make that the checksum adjustment and voila, there goes all the post_input and decap structures! I've left in the decap data structures for now since it's intricately woven into the sec_path stuff. We can kill them later too. Signed-off-by: Herbert Xu Signed-off-by: David S. Miller --- include/net/xfrm.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include') diff --git a/include/net/xfrm.h b/include/net/xfrm.h index 004e645f3e18..8d362c49b8a9 100644 --- a/include/net/xfrm.h +++ b/include/net/xfrm.h @@ -233,7 +233,6 @@ struct xfrm_type int (*init_state)(struct xfrm_state *x); void (*destructor)(struct xfrm_state *); int (*input)(struct xfrm_state *, struct xfrm_decap_state *, struct sk_buff *skb); - int (*post_input)(struct xfrm_state *, struct xfrm_decap_state *, struct sk_buff *skb); int (*output)(struct xfrm_state *, struct sk_buff *pskb); /* Estimate maximal size of result of transformation of a dgram */ u32 (*get_max_size)(struct xfrm_state *, int size); -- cgit v1.2.1 From bafac2a512bf4fd2ce7520f3976ce8aab4435f74 Mon Sep 17 00:00:00 2001 From: Patrick McHardy Date: Mon, 27 Feb 2006 13:04:17 -0800 Subject: [NETFILTER]: Restore {ipt,ip6t,ebt}_LOG compatibility The nfnetlink_log infrastructure changes broke compatiblity of the LOG targets. They currently use whatever log backend was registered first, which means that if ipt_ULOG was loaded first, no messages will be printed to the ring buffer anymore. Restore compatiblity by using the old log functions by default and only use the nf_log backend if the user explicitly said so. Signed-off-by: Patrick McHardy Signed-off-by: David S. Miller --- include/linux/netfilter_bridge/ebt_log.h | 1 + include/linux/netfilter_ipv4/ipt_LOG.h | 3 ++- include/linux/netfilter_ipv6/ip6t_LOG.h | 3 ++- 3 files changed, 5 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/netfilter_bridge/ebt_log.h b/include/linux/netfilter_bridge/ebt_log.h index 358fbc84fb59..96e231ae7554 100644 --- a/include/linux/netfilter_bridge/ebt_log.h +++ b/include/linux/netfilter_bridge/ebt_log.h @@ -3,6 +3,7 @@ #define EBT_LOG_IP 0x01 /* if the frame is made by ip, log the ip information */ #define EBT_LOG_ARP 0x02 +#define EBT_LOG_NFLOG 0x04 #define EBT_LOG_MASK (EBT_LOG_IP | EBT_LOG_ARP) #define EBT_LOG_PREFIX_SIZE 30 #define EBT_LOG_WATCHER "log" diff --git a/include/linux/netfilter_ipv4/ipt_LOG.h b/include/linux/netfilter_ipv4/ipt_LOG.h index 22d16177319b..892f9a33fea8 100644 --- a/include/linux/netfilter_ipv4/ipt_LOG.h +++ b/include/linux/netfilter_ipv4/ipt_LOG.h @@ -6,7 +6,8 @@ #define IPT_LOG_TCPOPT 0x02 /* Log TCP options */ #define IPT_LOG_IPOPT 0x04 /* Log IP options */ #define IPT_LOG_UID 0x08 /* Log UID owning local socket */ -#define IPT_LOG_MASK 0x0f +#define IPT_LOG_NFLOG 0x10 /* Log using nf_log backend */ +#define IPT_LOG_MASK 0x1f struct ipt_log_info { unsigned char level; diff --git a/include/linux/netfilter_ipv6/ip6t_LOG.h b/include/linux/netfilter_ipv6/ip6t_LOG.h index 9008ff5c40ae..060c1a1c6c60 100644 --- a/include/linux/netfilter_ipv6/ip6t_LOG.h +++ b/include/linux/netfilter_ipv6/ip6t_LOG.h @@ -6,7 +6,8 @@ #define IP6T_LOG_TCPOPT 0x02 /* Log TCP options */ #define IP6T_LOG_IPOPT 0x04 /* Log IP options */ #define IP6T_LOG_UID 0x08 /* Log UID owning local socket */ -#define IP6T_LOG_MASK 0x0f +#define IP6T_LOG_NFLOG 0x10 /* Log using nf_log backend */ +#define IP6T_LOG_MASK 0x1f struct ip6t_log_info { unsigned char level; -- cgit v1.2.1 From 18810d1ebac89232d8f218a318ed9ff7ef198e96 Mon Sep 17 00:00:00 2001 From: Jack Steiner Date: Thu, 23 Feb 2006 13:16:44 -0600 Subject: [IA64-SGI] Make number of TIO nodes configurable Make the limit for the number of TIO nodes a function of the number of C/M nodes in the system instead of a hardcoded constant. The number of TIO nodes should be the same as the number of C/M nodes. Signed-off-by: Jack Steiner Signed-off-by: Tony Luck --- include/asm-ia64/sn/arch.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/asm-ia64/sn/arch.h b/include/asm-ia64/sn/arch.h index 91c31be87b13..16adc93d7a72 100644 --- a/include/asm-ia64/sn/arch.h +++ b/include/asm-ia64/sn/arch.h @@ -31,7 +31,8 @@ * to ACPI3.0, this limit will be removed. The notion of "compact nodes" * should be deleted and TIOs should be included in MAX_NUMNODES. */ -#define MAX_COMPACT_NODES 512 +#define MAX_TIO_NODES MAX_NUMNODES +#define MAX_COMPACT_NODES (MAX_NUMNODES + MAX_TIO_NODES) /* * Maximum number of nodes in all partitions and in all coherency domains. -- cgit v1.2.1 From 637029c6cb5efcbaa3d5831af4c1972bdd629779 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Mon, 27 Feb 2006 20:41:56 -0800 Subject: Revert "[PATCH] x86_64: Only do the clustered systems have unsynchronized TSC assumption on IBM systems" This reverts commit 13a229abc25640813f1480c0478dfc6bdbc1c19e. Quoth Andi: "After some consideration and feedback from various people it turns out this wasn't that good an idea. It has some problems and needs more work. Since it was only an optimization anyways it's best to just back it out again for now." Signed-off-by: Linus Torvalds --- include/asm-x86_64/acpi.h | 14 -------------- 1 file changed, 14 deletions(-) (limited to 'include') diff --git a/include/asm-x86_64/acpi.h b/include/asm-x86_64/acpi.h index e2b9923189a0..aa1c7b2e438c 100644 --- a/include/asm-x86_64/acpi.h +++ b/include/asm-x86_64/acpi.h @@ -164,20 +164,6 @@ extern u8 x86_acpiid_to_apicid[]; extern int acpi_skip_timer_override; -extern int unsync_tsc_on_multicluster; - -static inline int acpi_madt_oem_check(char *oem, char *productid) -{ - /* Copied from i386. Probably has too many entries. */ - if (!strncmp(oem, "IBM ENSW", 8) && - (!strncmp(productid, "VIGIL SMP", 9) - || !strncmp(productid, "EXA", 3) - || !strncmp(productid, "RUTHLESS SMP", 12))) { - unsync_tsc_on_multicluster = 1; - } - return 0; -} - #endif /*__KERNEL__*/ #endif /*_ASM_ACPI_H*/ -- cgit v1.2.1 From 827c1a6c1a5dcb2902fecfb648f9af6a532934eb Mon Sep 17 00:00:00 2001 From: John Rose Date: Fri, 24 Feb 2006 11:34:23 -0600 Subject: [PATCH] powerpc: fix dynamic PCI probe regression Some hotplug driver functions were migrated to the kernel for use by EEH in commit 2bf6a8fa21570f37fd1789610da30f70a05ac5e3. Previously, the PCI Hotplug module had been changed to use the new OFDT-based PCI probe when appropriate: 5fa80fcdca9d20d30c9ecec30d4dbff4ed93a5c6 When rpaphp_pci_config_slot() was moved from the rpaphp driver to the new kernel function pcibios_add_pci_devices(), the OFDT-based probe stuff was dropped. This patch restores it. Signed-off-by: John Rose Signed-off-by: Paul Mackerras --- include/asm-powerpc/eeh.h | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/asm-powerpc/eeh.h b/include/asm-powerpc/eeh.h index b263fb2fa6e4..7dfb408fe2ca 100644 --- a/include/asm-powerpc/eeh.h +++ b/include/asm-powerpc/eeh.h @@ -27,6 +27,7 @@ #include struct pci_dev; +struct pci_bus; struct device_node; #ifdef CONFIG_EEH @@ -61,7 +62,7 @@ void __init pci_addr_cache_build(void); */ void eeh_add_device_early(struct device_node *); void eeh_add_device_tree_early(struct device_node *); -void eeh_add_device_late(struct pci_dev *); +void eeh_add_device_tree_late(struct pci_bus *); /** * eeh_remove_device - undo EEH setup for the indicated pci device @@ -116,12 +117,12 @@ static inline void pci_addr_cache_build(void) { } static inline void eeh_add_device_early(struct device_node *dn) { } -static inline void eeh_add_device_late(struct pci_dev *dev) { } - static inline void eeh_remove_device(struct pci_dev *dev) { } static inline void eeh_add_device_tree_early(struct device_node *dn) { } +static inline void eeh_add_device_tree_late(struct pci_bus *bus) { } + static inline void eeh_remove_bus_device(struct pci_dev *dev) { } #define EEH_POSSIBLE_ERROR(val, type) (0) #define EEH_IO_ERROR_VALUE(size) (-1UL) -- cgit v1.2.1 From 778e2ac5970e445f8c6b7d8aa597ac162afe270a Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Tue, 28 Feb 2006 17:04:20 +0000 Subject: [MIPS] Fix build error on processors that don's support copy-on-write. Signed-off-by: Ralf Baechle --- include/asm-mips/io.h | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) (limited to 'include') diff --git a/include/asm-mips/io.h b/include/asm-mips/io.h index 5a4c8a54b8f4..8c011aa61afa 100644 --- a/include/asm-mips/io.h +++ b/include/asm-mips/io.h @@ -282,6 +282,24 @@ static inline void __iomem * __ioremap_mode(phys_t offset, unsigned long size, #define ioremap_nocache(offset, size) \ __ioremap_mode((offset), (size), _CACHE_UNCACHED) +/* + * ioremap_cachable - map bus memory into CPU space + * @offset: bus address of the memory + * @size: size of the resource to map + * + * ioremap_nocache performs a platform specific sequence of operations to + * make bus memory CPU accessible via the readb/readw/readl/writeb/ + * writew/writel functions and the other mmio helpers. The returned + * address is not guaranteed to be usable directly as a virtual + * address. + * + * This version of ioremap ensures that the memory is marked cachable by + * the CPU. Also enables full write-combining. Useful for some + * memory-like regions on I/O busses. + */ +#define ioremap_cachable(offset, size) \ + __ioremap_mode((offset), (size), PAGE_CACHABLE_DEFAULT) + /* * These two are MIPS specific ioremap variant. ioremap_cacheable_cow * requests a cachable mapping, ioremap_uncached_accelerated requests a -- cgit v1.2.1 From d2b176ed878d4d5fcc0bd35656dfd373f3702af9 Mon Sep 17 00:00:00 2001 From: Jes Sorensen Date: Tue, 28 Feb 2006 09:42:23 -0800 Subject: [IA64] sysctl option to silence unaligned trap warnings Allow sysadmin to disable all warnings about userland apps making unaligned accesses by using: # echo 1 > /proc/sys/kernel/ignore-unaligned-usertrap Rather than having to use prctl on a process by process basis. Default behaivour leaves the warnings enabled. Signed-off-by: Jes Sorensen Signed-off-by: Tony Luck --- include/linux/sysctl.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h index 0e92bf7ec28e..bac61db26456 100644 --- a/include/linux/sysctl.h +++ b/include/linux/sysctl.h @@ -147,6 +147,7 @@ enum KERN_SETUID_DUMPABLE=69, /* int: behaviour of dumps for setuid core */ KERN_SPIN_RETRY=70, /* int: number of spinlock retries */ KERN_ACPI_VIDEO_FLAGS=71, /* int: flags for setting up video after ACPI sleep */ + KERN_IA64_UNALIGNED=72, /* int: ia64 unaligned userland trap enable */ }; -- cgit v1.2.1 From 0551fbd29e16fccd46e41b7d01bf0f8f39b14212 Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Tue, 28 Feb 2006 16:59:19 -0800 Subject: [PATCH] Add mm->task_size and fix powerpc vdso This patch adds mm->task_size to keep track of the task size of a given mm and uses that to fix the powerpc vdso so that it uses the mm task size to decide what pages to fault in instead of the current thread flags (which broke when ptracing). (akpm: I expect that mm_struct.task_size will become the way in which we finally sort out the confusion between 32-bit processes and 32-bit mm's. It may need tweaks, but at this stage this patch is powerpc-only.) Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/sched.h | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/sched.h b/include/linux/sched.h index b6f51e3a38ec..ff2e09c953b9 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -298,8 +298,9 @@ struct mm_struct { unsigned long addr, unsigned long len, unsigned long pgoff, unsigned long flags); void (*unmap_area) (struct mm_struct *mm, unsigned long addr); - unsigned long mmap_base; /* base of mmap area */ - unsigned long cached_hole_size; /* if non-zero, the largest hole below free_area_cache */ + unsigned long mmap_base; /* base of mmap area */ + unsigned long task_size; /* size of task vm space */ + unsigned long cached_hole_size; /* if non-zero, the largest hole below free_area_cache */ unsigned long free_area_cache; /* first hole of size cached_hole_size or larger */ pgd_t * pgd; atomic_t mm_users; /* How many users with user space? */ -- cgit v1.2.1 From f0892b89e3c19c7d805825ca12511d26dcdf6415 Mon Sep 17 00:00:00 2001 From: Pavel Roskin Date: Tue, 28 Feb 2006 01:18:29 -0500 Subject: [PATCH] pcmcia: Add macro to match PCMCIA cards by numeric ID and first vendor string This is needed to distinguish Intersil and non-Intersil cards with numeric ID 0x0156, 0x0002. Signed-off-by: Pavel Roskin Signed-off-by: Dominik Brodowski --- include/pcmcia/device_id.h | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'include') diff --git a/include/pcmcia/device_id.h b/include/pcmcia/device_id.h index 346d81ece287..e04e0b0d9a25 100644 --- a/include/pcmcia/device_id.h +++ b/include/pcmcia/device_id.h @@ -72,6 +72,15 @@ .prod_id = { (v1), (v2), (v3), (v4) }, \ .prod_id_hash = { (vh1), (vh2), (vh3), (vh4) }, } +#define PCMCIA_DEVICE_MANF_CARD_PROD_ID1(manf, card, v1, vh1) { \ + .match_flags = PCMCIA_DEV_ID_MATCH_MANF_ID| \ + PCMCIA_DEV_ID_MATCH_CARD_ID| \ + PCMCIA_DEV_ID_MATCH_PROD_ID1, \ + .manf_id = (manf), \ + .card_id = (card), \ + .prod_id = { (v1), NULL, NULL, NULL }, \ + .prod_id_hash = { (vh1), 0, 0, 0 }, } + /* multi-function devices */ -- cgit v1.2.1 From e5cef95d58d1e711b0bd6b00018278a06defb274 Mon Sep 17 00:00:00 2001 From: Greg KH Date: Wed, 1 Mar 2006 13:46:00 -0800 Subject: [PATCH] fix build breakage in eeh.c in 2.6.16-rc5-git5 This patch should fixe a problem with eeh_add_device_late() not being defined in the ppc64 build process, causing the build to break. Signed-off-by: Greg Kroah-Hartman Signed-off-by: Linus Torvalds --- include/asm-powerpc/eeh.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/asm-powerpc/eeh.h b/include/asm-powerpc/eeh.h index 7dfb408fe2ca..eb392032e19b 100644 --- a/include/asm-powerpc/eeh.h +++ b/include/asm-powerpc/eeh.h @@ -61,6 +61,7 @@ void __init pci_addr_cache_build(void); * to finish the eeh setup for this device. */ void eeh_add_device_early(struct device_node *); +void eeh_add_device_late(struct pci_dev *dev); void eeh_add_device_tree_early(struct device_node *); void eeh_add_device_tree_late(struct pci_bus *); -- cgit v1.2.1 From 3af1efe8a301f5b1c813f5f761cb1e10d6175605 Mon Sep 17 00:00:00 2001 From: Jeff Mahoney Date: Thu, 2 Mar 2006 13:25:26 -0500 Subject: [PATCH] reiserfs: fix unaligned bitmap usage The bitmaps associated with generation numbers for directory entries are declared as an array of ints. On some platforms, this causes alignment exceptions. The following patch uses the standard bitmap declaration macros to declare the bitmaps, fixing the problem. Originally from Takashi Iwai. Signed-off-by: Takashi Iwai Acked-by: Jeff Mahoney Signed-off-by: Linus Torvalds --- include/linux/reiserfs_fs.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/reiserfs_fs.h b/include/linux/reiserfs_fs.h index 7d51149bd793..dad78cecfd20 100644 --- a/include/linux/reiserfs_fs.h +++ b/include/linux/reiserfs_fs.h @@ -1052,7 +1052,7 @@ struct reiserfs_dir_entry { int de_entrylen; int de_namelen; char *de_name; - char *de_gen_number_bit_string; + unsigned long *de_gen_number_bit_string; __u32 de_dir_id; __u32 de_objectid; -- cgit v1.2.1 From aa5cb02143123289bd37c30c0ad60339f8da0bad Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Wed, 1 Mar 2006 15:07:07 +1100 Subject: [PATCH] powerpc: Expose SMT and L1 icache snoop userland features This patch makes userland aware of the icache snoop capability of the POWER5 (and possibly others in the future) and of SMT capabilities. Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Paul Mackerras --- include/asm-powerpc/cputable.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/asm-powerpc/cputable.h b/include/asm-powerpc/cputable.h index 90d005bb4d1c..5638518968c3 100644 --- a/include/asm-powerpc/cputable.h +++ b/include/asm-powerpc/cputable.h @@ -20,6 +20,8 @@ #define PPC_FEATURE_POWER5_PLUS 0x00020000 #define PPC_FEATURE_CELL 0x00010000 #define PPC_FEATURE_BOOKE 0x00008000 +#define PPC_FEATURE_SMT 0x00004000 +#define PPC_FEATURE_ICACHE_SNOOP 0x00002000 #ifdef __KERNEL__ #ifndef __ASSEMBLY__ -- cgit v1.2.1 From 141aa59b5347a4a021e37cfbc2258df9af9392f8 Mon Sep 17 00:00:00 2001 From: David Gibson Date: Fri, 3 Mar 2006 16:24:06 +1100 Subject: [PATCH] powerpc: Fix incorrect pud_ERROR() message The powerpc pud_ERROR() function misleadingly prints a message indicating a pmd error. This patch fixes it. Signed-off-by: David Gibson Signed-off-by: Paul Mackerras --- include/asm-powerpc/pgtable-4k.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/asm-powerpc/pgtable-4k.h b/include/asm-powerpc/pgtable-4k.h index e9590c06ad92..80a7832d2721 100644 --- a/include/asm-powerpc/pgtable-4k.h +++ b/include/asm-powerpc/pgtable-4k.h @@ -88,4 +88,4 @@ (((addr) >> PUD_SHIFT) & (PTRS_PER_PUD - 1))) #define pud_ERROR(e) \ - printk("%s:%d: bad pmd %08lx.\n", __FILE__, __LINE__, pud_val(e)) + printk("%s:%d: bad pud %08lx.\n", __FILE__, __LINE__, pud_val(e)) -- cgit v1.2.1 From 4d000d5b9689734006d89fe9b7597c758b74a9fb Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Sat, 4 Mar 2006 23:23:56 -0800 Subject: [SPARC64]: Mark __ex_table section correctly. We must use the "a" (allocate) attribute every time we emit an entry into the __ex_table section. For consistency, use "a" instead of #alloc which is some Solaris compat cruft GNU as provides on Sparc. Signed-off-by: David S. Miller --- include/asm-sparc64/futex.h | 2 +- include/asm-sparc64/uaccess.h | 12 ++++++------ 2 files changed, 7 insertions(+), 7 deletions(-) (limited to 'include') diff --git a/include/asm-sparc64/futex.h b/include/asm-sparc64/futex.h index 0caf60147e97..34c4b43d3f98 100644 --- a/include/asm-sparc64/futex.h +++ b/include/asm-sparc64/futex.h @@ -20,7 +20,7 @@ "4: ba 3b\n" \ " mov %5, %0\n" \ " .previous\n" \ - " .section __ex_table,#alloc\n" \ + " .section __ex_table,\"a\"\n" \ " .align 4\n" \ " .word 1b, 4b\n" \ " .word 2b, 4b\n" \ diff --git a/include/asm-sparc64/uaccess.h b/include/asm-sparc64/uaccess.h index 203e8eee6351..c91d1e38eac6 100644 --- a/include/asm-sparc64/uaccess.h +++ b/include/asm-sparc64/uaccess.h @@ -136,7 +136,7 @@ __asm__ __volatile__( \ "b 2b\n\t" \ " mov %3, %0\n\n\t" \ ".previous\n\t" \ - ".section __ex_table,#alloc\n\t" \ + ".section __ex_table,\"a\"\n\t" \ ".align 4\n\t" \ ".word 1b, 3b\n\t" \ ".previous\n\n\t" \ @@ -148,7 +148,7 @@ if (__builtin_constant_p(ret) && ret == -EFAULT) \ __asm__ __volatile__( \ "/* Put user asm ret, inline. */\n" \ "1:\t" "st"#size "a %1, [%2] %%asi\n\n\t" \ - ".section __ex_table,#alloc\n\t" \ + ".section __ex_table,\"a\"\n\t" \ ".align 4\n\t" \ ".word 1b, __ret_efault\n\n\t" \ ".previous\n\n\t" \ @@ -163,7 +163,7 @@ __asm__ __volatile__( \ "ret\n\t" \ " restore %%g0, %3, %%o0\n\n\t" \ ".previous\n\t" \ - ".section __ex_table,#alloc\n\t" \ + ".section __ex_table,\"a\"\n\t" \ ".align 4\n\t" \ ".word 1b, 3b\n\n\t" \ ".previous\n\n\t" \ @@ -206,7 +206,7 @@ __asm__ __volatile__( \ "b 2b\n\t" \ " mov %3, %0\n\n\t" \ ".previous\n\t" \ - ".section __ex_table,#alloc\n\t" \ + ".section __ex_table,\"a\"\n\t" \ ".align 4\n\t" \ ".word 1b, 3b\n\n\t" \ ".previous\n\t" \ @@ -218,7 +218,7 @@ if (__builtin_constant_p(retval) && retval == -EFAULT) \ __asm__ __volatile__( \ "/* Get user asm ret, inline. */\n" \ "1:\t" "ld"#size "a [%1] %%asi, %0\n\n\t" \ - ".section __ex_table,#alloc\n\t" \ + ".section __ex_table,\"a\"\n\t" \ ".align 4\n\t" \ ".word 1b,__ret_efault\n\n\t" \ ".previous\n\t" \ @@ -233,7 +233,7 @@ __asm__ __volatile__( \ "ret\n\t" \ " restore %%g0, %2, %%o0\n\n\t" \ ".previous\n\t" \ - ".section __ex_table,#alloc\n\t" \ + ".section __ex_table,\"a\"\n\t" \ ".align 4\n\t" \ ".word 1b, 3b\n\n\t" \ ".previous\n\t" \ -- cgit v1.2.1 From 1e4b27df55166ce3b276f55bab223fa4ae8c5525 Mon Sep 17 00:00:00 2001 From: Karsten Keil Date: Mon, 6 Mar 2006 15:42:37 -0800 Subject: [PATCH] i4l: add new PCI IDs for HFC-S PCI Add new PCI IDs for HFC-S PCI based ISDN TA 'Primux II S0' and 'Primux II S0' from Gerdes AG Signed-off-by: Martin Bachem Signed-off-by: Karsten Keil Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/pci_ids.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h index 82b83da25d77..1709b5009d2e 100644 --- a/include/linux/pci_ids.h +++ b/include/linux/pci_ids.h @@ -1752,6 +1752,8 @@ #define PCI_DEVICE_ID_CCD_B00B 0xb00b #define PCI_DEVICE_ID_CCD_B00C 0xb00c #define PCI_DEVICE_ID_CCD_B100 0xb100 +#define PCI_DEVICE_ID_CCD_B700 0xb700 +#define PCI_DEVICE_ID_CCD_B701 0xb701 #define PCI_VENDOR_ID_EXAR 0x13a8 #define PCI_DEVICE_ID_EXAR_XR17C152 0x0152 -- cgit v1.2.1 From 69239749e1ac4f3496906aa4267cb9f61ce52c9c Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Mon, 6 Mar 2006 15:42:45 -0800 Subject: [PATCH] fix next_timer_interrupt() for hrtimer Also from Thomas Gleixner Function next_timer_interrupt() got broken with a recent patch 6ba1b91213e81aa92b5cf7539f7d2a94ff54947c as sys_nanosleep() was moved to hrtimer. This broke things as next_timer_interrupt() did not check hrtimer tree for next event. Function next_timer_interrupt() is needed with dyntick (CONFIG_NO_IDLE_HZ, VST) implementations, as the system can be in idle when next hrtimer event was supposed to happen. At least ARM and S390 currently use next_timer_interrupt(). Signed-off-by: Thomas Gleixner Cc: Martin Schwidefsky Cc: Heiko Carstens Cc: Russell King Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/hrtimer.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include') diff --git a/include/linux/hrtimer.h b/include/linux/hrtimer.h index 6361544bb6ae..6401c31d6add 100644 --- a/include/linux/hrtimer.h +++ b/include/linux/hrtimer.h @@ -116,6 +116,10 @@ extern int hrtimer_try_to_cancel(struct hrtimer *timer); extern ktime_t hrtimer_get_remaining(const struct hrtimer *timer); extern int hrtimer_get_res(const clockid_t which_clock, struct timespec *tp); +#ifdef CONFIG_NO_IDLE_HZ +extern ktime_t hrtimer_get_next_event(void); +#endif + static inline int hrtimer_active(const struct hrtimer *timer) { return timer->state == HRTIMER_PENDING; -- cgit v1.2.1 From 5c8338904653365bfb92385b38915becb903d8bb Mon Sep 17 00:00:00 2001 From: Jan Blunck Date: Mon, 6 Mar 2006 15:42:46 -0800 Subject: [PATCH] s390: fix compile with VIRT_CPU_ACCOUNTING=n When CONFIG_VIRT_CPU_ACCOUNTING is not defined compiling fails with an undefined reference to account_vtime(). Signed-off-by: Jan Blunck Signed-off-by: Martin Schwidefsky Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-s390/system.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/asm-s390/system.h b/include/asm-s390/system.h index b2e65e8bf812..6a89dbb03c1e 100644 --- a/include/asm-s390/system.h +++ b/include/asm-s390/system.h @@ -118,6 +118,8 @@ static inline void sched_cacheflush(void) extern void account_vtime(struct task_struct *); extern void account_tick_vtime(struct task_struct *); extern void account_system_vtime(struct task_struct *); +#else +#define account_vtime(x) do { /* empty */ } while (0) #endif #define finish_arch_switch(prev) do { \ -- cgit v1.2.1 From 78679302fe428f4f3dc853a51ee24f306010d874 Mon Sep 17 00:00:00 2001 From: KAMEZAWA Hiroyuki Date: Mon, 6 Mar 2006 15:42:49 -0800 Subject: [PATCH] memory-hotplug compile fix include/linux/memory_hotplug.h:53: warning: 'struct page' declared inside parameter list (akpm: I tossed in a couple more possibly-needed-sometime struct decls too) Signed-off-by: KAMEZAWA Hiroyuki Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/memory_hotplug.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include') diff --git a/include/linux/memory_hotplug.h b/include/linux/memory_hotplug.h index 01f03bc06eff..968b1aa3732c 100644 --- a/include/linux/memory_hotplug.h +++ b/include/linux/memory_hotplug.h @@ -6,6 +6,10 @@ #include #include +struct page; +struct zone; +struct pglist_data; + #ifdef CONFIG_MEMORY_HOTPLUG /* * pgdat resizing functions -- cgit v1.2.1 From a615fa83959896f8eac76c235953fb164cd1a9b9 Mon Sep 17 00:00:00 2001 From: Jack Steiner Date: Mon, 6 Mar 2006 15:42:50 -0800 Subject: [PATCH] Increase max kmalloc size for very large systems Systems with extemely large numbers of nodes or cpus need to kmalloc structures larger than is currently supported. This patch increases the maximum supported size for very large systems. This patch should have no effect on current systems. (akpm: why not just use alloc_pages() for sysfs_cpus?) Signed-off-by: Jack Steiner Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/kmalloc_sizes.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/kmalloc_sizes.h b/include/linux/kmalloc_sizes.h index d82d4c05c12d..bda23e00ed71 100644 --- a/include/linux/kmalloc_sizes.h +++ b/include/linux/kmalloc_sizes.h @@ -19,8 +19,10 @@ CACHE(32768) CACHE(65536) CACHE(131072) -#ifndef CONFIG_MMU +#if (NR_CPUS > 512) || (MAX_NUMNODES > 256) || !defined(CONFIG_MMU) CACHE(262144) +#endif +#ifndef CONFIG_MMU CACHE(524288) CACHE(1048576) #ifdef CONFIG_LARGE_ALLOCS -- cgit v1.2.1 From 6a0e243069b09a323255f6e847c87d531961cd96 Mon Sep 17 00:00:00 2001 From: Catalin Marinas Date: Tue, 7 Mar 2006 14:42:27 +0000 Subject: [ARM] 3352/1: DSB required for the completion of a TLB maintenance operation Patch from Catalin Marinas Chapter B2.7.3 in the latest ARM ARM (with v6 information) states that the completion of a TLB maintenance operation is only guaranteed by the execution of a DSB (Data Syncronization Barrier, formerly Data Write Barrier or Drain Write Buffer). Note that a DSB is only needed in the flush_tlb_kernel_* functions since the completion is guaranteed by a mode change (i.e. switching back to user mode) for the flush_tlb_user_* functions. Signed-off-by: Catalin Marinas Signed-off-by: Russell King --- include/asm-arm/tlbflush.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'include') diff --git a/include/asm-arm/tlbflush.h b/include/asm-arm/tlbflush.h index 9387a5e1ffe0..0c2acc944a0a 100644 --- a/include/asm-arm/tlbflush.h +++ b/include/asm-arm/tlbflush.h @@ -340,6 +340,12 @@ static inline void local_flush_tlb_kernel_page(unsigned long kaddr) asm("mcr%? p15, 0, %0, c8, c6, 1" : : "r" (kaddr)); if (tlb_flag(TLB_V6_I_PAGE)) asm("mcr%? p15, 0, %0, c8, c5, 1" : : "r" (kaddr)); + + /* The ARM ARM states that the completion of a TLB maintenance + * operation is only guaranteed by a DSB instruction + */ + if (tlb_flag(TLB_V6_U_PAGE | TLB_V6_D_PAGE | TLB_V6_I_PAGE)) + asm("mcr%? p15, 0, %0, c7, c10, 4" : : "r" (zero)); } /* -- cgit v1.2.1 From 1bd79336a426c5e4f3bab142407059ceb12cadf9 Mon Sep 17 00:00:00 2001 From: Paul Mackerras Date: Wed, 8 Mar 2006 13:24:22 +1100 Subject: powerpc: Fix various syscall/signal/swapcontext bugs A careful reading of the recent changes to the system call entry/exit paths revealed several problems, plus some things that could be simplified and improved: * 32-bit wasn't testing the _TIF_NOERROR bit in the syscall fast exit path, so it was only doing anything with it once it saw some other bit being set. In other words, the noerror behaviour would apply to the next system call where we had to reschedule or deliver a signal, which is not necessarily the current system call. * 32-bit wasn't doing the call to ptrace_notify in the syscall exit path when the _TIF_SINGLESTEP bit was set. * _TIF_RESTOREALL was in both _TIF_USER_WORK_MASK and _TIF_PERSYSCALL_MASK, which is odd since _TIF_RESTOREALL is only set by system calls. I took it out of _TIF_USER_WORK_MASK. * On 64-bit, _TIF_RESTOREALL wasn't causing the non-volatile registers to be restored (unless perhaps a signal was delivered or the syscall was traced or single-stepped). Thus the non-volatile registers weren't restored on exit from a signal handler. We probably got away with it mostly because signal handlers written in C wouldn't alter the non-volatile registers. * On 32-bit I simplified the code and made it more like 64-bit by making the syscall exit path jump to ret_from_except to handle preemption and signal delivery. * 32-bit was calling do_signal unnecessarily when _TIF_RESTOREALL was set - but I think because of that 32-bit was actually restoring the non-volatile registers on exit from a signal handler. * I changed the order of enabling interrupts and saving the non-volatile registers before calling do_syscall_trace_leave; now we enable interrupts first. Signed-off-by: Paul Mackerras --- include/asm-powerpc/thread_info.h | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) (limited to 'include') diff --git a/include/asm-powerpc/thread_info.h b/include/asm-powerpc/thread_info.h index 237fc2b72974..ffc7462d77ba 100644 --- a/include/asm-powerpc/thread_info.h +++ b/include/asm-powerpc/thread_info.h @@ -37,7 +37,6 @@ struct thread_info { int preempt_count; /* 0 => preemptable, <0 => BUG */ struct restart_block restart_block; - void __user *nvgprs_frame; /* low level flags - has atomic operations done on it */ unsigned long flags ____cacheline_aligned_in_smp; }; @@ -120,7 +119,6 @@ static inline struct thread_info *current_thread_info(void) #define TIF_MEMDIE 10 #define TIF_SECCOMP 11 /* secure computing */ #define TIF_RESTOREALL 12 /* Restore all regs (implies NOERROR) */ -#define TIF_SAVE_NVGPRS 13 /* Save r14-r31 in signal frame */ #define TIF_NOERROR 14 /* Force successful syscall return */ #define TIF_RESTORE_SIGMASK 15 /* Restore signal mask in do_signal */ @@ -137,15 +135,13 @@ static inline struct thread_info *current_thread_info(void) #define _TIF_SINGLESTEP (1< Date: Wed, 8 Mar 2006 14:03:09 -0800 Subject: Mark the pipe file operations static They aren't used (nor even really usable) outside of pipe.c anyway Signed-off-by: Linus Torvalds --- include/linux/fs.h | 3 --- 1 file changed, 3 deletions(-) (limited to 'include') diff --git a/include/linux/fs.h b/include/linux/fs.h index e059da947007..0cc34b1c42c9 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -1418,9 +1418,6 @@ extern int is_bad_inode(struct inode *); extern struct file_operations read_fifo_fops; extern struct file_operations write_fifo_fops; extern struct file_operations rdwr_fifo_fops; -extern struct file_operations read_pipe_fops; -extern struct file_operations write_pipe_fops; -extern struct file_operations rdwr_pipe_fops; extern int fs_may_remount_ro(struct super_block *); -- cgit v1.2.1 From 1c6cc5fd32978ffdc4d0acf8592d3901adefbdad Mon Sep 17 00:00:00 2001 From: Mark Fasheh Date: Tue, 7 Mar 2006 21:55:20 -0800 Subject: [PATCH] powerpc: restore eeh_add_device_late() prototype stub We fixed this: arch/powerpc/platforms/pseries/eeh.c: In function `eeh_add_device_tree_late': arch/powerpc/platforms/pseries/eeh.c:901: warning: implicit declaration of function `eeh_add_device_late' arch/powerpc/platforms/pseries/eeh.c: At top level: arch/powerpc/platforms/pseries/eeh.c:918: error: conflicting types for 'eeh_add_device_late' arch/powerpc/platforms/pseries/eeh.c:901: error: previous implicit declaration of 'eeh_add_device_late' was here make[2]: *** [arch/powerpc/platforms/pseries/eeh.o] Error 1 But we forgot the !CONFIG_EEH stub. Signed-off-by: Mark Fasheh Cc: Paul Mackerras Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-powerpc/eeh.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/asm-powerpc/eeh.h b/include/asm-powerpc/eeh.h index eb392032e19b..5207758a6dd9 100644 --- a/include/asm-powerpc/eeh.h +++ b/include/asm-powerpc/eeh.h @@ -118,6 +118,8 @@ static inline void pci_addr_cache_build(void) { } static inline void eeh_add_device_early(struct device_node *dn) { } +static inline void eeh_add_device_late(struct pci_dev *dev) { } + static inline void eeh_remove_device(struct pci_dev *dev) { } static inline void eeh_add_device_tree_early(struct device_node *dn) { } -- cgit v1.2.1 From 707ced0d718e89b52b13aa55a64653083e792cca Mon Sep 17 00:00:00 2001 From: Atsushi Nemoto Date: Tue, 7 Mar 2006 21:55:28 -0800 Subject: [PATCH] __get_unaligned() gcc-4 fix If the 'ptr' is a const, this code cause "assignment of read-only variable" error on gcc 4.x. Use __u64 instead of __typeof__(*(ptr)) for temporary variable to get rid of errors on gcc 4.x. Signed-off-by: Atsushi Nemoto Cc: Ralf Baechle Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-generic/unaligned.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/asm-generic/unaligned.h b/include/asm-generic/unaligned.h index 4dc8ddb401c1..09ec447fe2af 100644 --- a/include/asm-generic/unaligned.h +++ b/include/asm-generic/unaligned.h @@ -78,7 +78,7 @@ static inline void __ustw(__u16 val, __u16 *addr) #define __get_unaligned(ptr, size) ({ \ const void *__gu_p = ptr; \ - __typeof__(*(ptr)) val; \ + __u64 val; \ switch (size) { \ case 1: \ val = *(const __u8 *)__gu_p; \ @@ -95,7 +95,7 @@ static inline void __ustw(__u16 val, __u16 *addr) default: \ bad_unaligned_access_length(); \ }; \ - val; \ + (__typeof__(*(ptr)))val; \ }) #define __put_unaligned(val, ptr, size) \ -- cgit v1.2.1 From e2bab3d92486fb781f4d06f56339264ed1492392 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Tue, 7 Mar 2006 21:55:31 -0800 Subject: [PATCH] percpu_counter_sum() Implement percpu_counter_sum(). This is a more accurate but slower version of percpu_counter_read_positive(). We need this for Alex's speedup-ext3_statfs patch and for the nr_file accounting fix. Otherwise these things would be too inaccurate on large CPU counts. Cc: Ravikiran G Thirumalai Cc: Alex Tomas Cc: "David S. Miller" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/percpu_counter.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'include') diff --git a/include/linux/percpu_counter.h b/include/linux/percpu_counter.h index bd6708e2c027..682525511c9e 100644 --- a/include/linux/percpu_counter.h +++ b/include/linux/percpu_counter.h @@ -39,6 +39,7 @@ static inline void percpu_counter_destroy(struct percpu_counter *fbc) } void percpu_counter_mod(struct percpu_counter *fbc, long amount); +long percpu_counter_sum(struct percpu_counter *fbc); static inline long percpu_counter_read(struct percpu_counter *fbc) { @@ -92,6 +93,11 @@ static inline long percpu_counter_read_positive(struct percpu_counter *fbc) return fbc->count; } +static inline long percpu_counter_sum(struct percpu_counter *fbc) +{ + return percpu_counter_read_positive(fbc); +} + #endif /* CONFIG_SMP */ static inline void percpu_counter_inc(struct percpu_counter *fbc) -- cgit v1.2.1 From 21a1ea9eb40411d4ee29448c53b9e4c0654d6ceb Mon Sep 17 00:00:00 2001 From: Dipankar Sarma Date: Tue, 7 Mar 2006 21:55:33 -0800 Subject: [PATCH] rcu batch tuning This patch adds new tunables for RCU queue and finished batches. There are two types of controls - number of completed RCU updates invoked in a batch (blimit) and monitoring for high rate of incoming RCUs on a cpu (qhimark, qlowmark). By default, the per-cpu batch limit is set to a small value. If the input RCU rate exceeds the high watermark, we do two things - force quiescent state on all cpus and set the batch limit of the CPU to INTMAX. Setting batch limit to INTMAX forces all finished RCUs to be processed in one shot. If we have more than INTMAX RCUs queued up, then we have bigger problems anyway. Once the incoming queued RCUs fall below the low watermark, the batch limit is set to the default. Signed-off-by: Dipankar Sarma Cc: "Paul E. McKenney" Cc: "David S. Miller" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/rcupdate.h | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h index b87aefa082e2..c2ec6c77874e 100644 --- a/include/linux/rcupdate.h +++ b/include/linux/rcupdate.h @@ -98,13 +98,17 @@ struct rcu_data { long batch; /* Batch # for current RCU batch */ struct rcu_head *nxtlist; struct rcu_head **nxttail; - long count; /* # of queued items */ + long qlen; /* # of queued callbacks */ struct rcu_head *curlist; struct rcu_head **curtail; struct rcu_head *donelist; struct rcu_head **donetail; + long blimit; /* Upper limit on a processed batch */ int cpu; struct rcu_head barrier; +#ifdef CONFIG_SMP + long last_rs_qlen; /* qlen during the last resched */ +#endif }; DECLARE_PER_CPU(struct rcu_data, rcu_data); -- cgit v1.2.1 From 529bf6be5c04f2e869d07bfdb122e9fd98ade714 Mon Sep 17 00:00:00 2001 From: Dipankar Sarma Date: Tue, 7 Mar 2006 21:55:35 -0800 Subject: [PATCH] fix file counting I have benchmarked this on an x86_64 NUMA system and see no significant performance difference on kernbench. Tested on both x86_64 and powerpc. The way we do file struct accounting is not very suitable for batched freeing. For scalability reasons, file accounting was constructor/destructor based. This meant that nr_files was decremented only when the object was removed from the slab cache. This is susceptible to slab fragmentation. With RCU based file structure, consequent batched freeing and a test program like Serge's, we just speed this up and end up with a very fragmented slab - llm22:~ # cat /proc/sys/fs/file-nr 587730 0 758844 At the same time, I see only a 2000+ objects in filp cache. The following patch I fixes this problem. This patch changes the file counting by removing the filp_count_lock. Instead we use a separate percpu counter, nr_files, for now and all accesses to it are through get_nr_files() api. In the sysctl handler for nr_files, we populate files_stat.nr_files before returning to user. Counting files as an when they are created and destroyed (as opposed to inside slab) allows us to correctly count open files with RCU. Signed-off-by: Dipankar Sarma Cc: "Paul E. McKenney" Cc: "David S. Miller" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/file.h | 2 -- include/linux/fs.h | 1 + 2 files changed, 1 insertion(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/file.h b/include/linux/file.h index 418b6101b59a..9901b850f2e4 100644 --- a/include/linux/file.h +++ b/include/linux/file.h @@ -60,8 +60,6 @@ extern void put_filp(struct file *); extern int get_unused_fd(void); extern void FASTCALL(put_unused_fd(unsigned int fd)); struct kmem_cache; -extern void filp_ctor(void * objp, struct kmem_cache *cachep, unsigned long cflags); -extern void filp_dtor(void * objp, struct kmem_cache *cachep, unsigned long dflags); extern struct file ** alloc_fd_array(int); extern void free_fd_array(struct file **, int); diff --git a/include/linux/fs.h b/include/linux/fs.h index 0cc34b1c42c9..51c0c93bdf93 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -35,6 +35,7 @@ struct files_stat_struct { int max_files; /* tunable */ }; extern struct files_stat_struct files_stat; +extern int get_max_files(void); struct inodes_stat_t { int nr_inodes; -- cgit v1.2.1 From 2ec5e3a867d63d04932e11c6097f63760d9be3fe Mon Sep 17 00:00:00 2001 From: Michael Matz Date: Tue, 7 Mar 2006 21:55:48 -0800 Subject: [PATCH] fix kexec asm While testing kexec and kdump we hit problems where the new kernel would freeze or instantly reboot. The easiest way to trigger it was to kexec a kernel compiled for CONFIG_M586 on an athlon cpu. Compiling for CONFIG_MK7 instead would work fine. The patch fixes a few problems with the kexec inline asm. Signed-off-by: Chris Mason Acked-by: "Eric W. Biederman" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-powerpc/kexec.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/asm-powerpc/kexec.h b/include/asm-powerpc/kexec.h index bda2f217e6fe..6a2af2f6853b 100644 --- a/include/asm-powerpc/kexec.h +++ b/include/asm-powerpc/kexec.h @@ -93,7 +93,8 @@ static inline void crash_setup_regs(struct pt_regs *newregs, "mfxer %0\n" "std %0, 296(%2)\n" : "=&r" (tmp1), "=&r" (tmp2) - : "b" (newregs)); + : "b" (newregs) + : "memory"); } } #else -- cgit v1.2.1 From f9262c12c0084ddba445a9a42e98994018e51400 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Wed, 8 Mar 2006 17:57:25 -0800 Subject: [PATCH] i386: port ATI timer fix from x86_64 to i386 II ATI chipsets tend to generate double timer interrupts for the local APIC timer when both the 8254 and the IO-APIC timer pins are enabled. This is because they route it to both and the result is anded together and the CPU ends up processing it twice. This patch changes check_timer to disable the 8254 routing for interrupt 0. I think it would be safe on all chipsets actually (i tested it on a couple and it worked everywhere) and Windows seems to do it in a similar way, but to be conservative this patch only enables this mode on ATI (and adds options to enable/disable too) Ported over from a similar x86-64 change. I reused the ACPI earlyquirk infrastructure for the ATI bridge check, but tweaked it a bit to work even without ACPI. Inspired by a patch from Chuck Ebbert, but redone. Cc: Chuck Ebbert <76306.1226@compuserve.com> Cc: "Brown, Len" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-i386/apic.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/asm-i386/apic.h b/include/asm-i386/apic.h index d30b8571573f..ff9ac8d19eb2 100644 --- a/include/asm-i386/apic.h +++ b/include/asm-i386/apic.h @@ -137,6 +137,8 @@ void switch_APIC_timer_to_ipi(void *cpumask); void switch_ipi_to_APIC_timer(void *cpumask); #define ARCH_APICTIMER_STOPS_ON_C3 1 +extern int timer_over_8254; + #else /* !CONFIG_X86_LOCAL_APIC */ static inline void lapic_shutdown(void) { } -- cgit v1.2.1 From fd2a4f1183d1e6802457d70cea067396236ed64b Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Wed, 8 Mar 2006 16:04:32 +0000 Subject: [MIPS] Undefine scr_writew and scr_readw in . This is gluing the build of cirrusfb but really the mess that would need cleaning and fixing is