diff options
Diffstat (limited to 'arch')
87 files changed, 660 insertions, 1224 deletions
diff --git a/arch/alpha/kernel/module.c b/arch/alpha/kernel/module.c index bd03dc94c72..026ba9af6d6 100644 --- a/arch/alpha/kernel/module.c +++ b/arch/alpha/kernel/module.c @@ -119,8 +119,7 @@ module_frob_arch_sections(Elf64_Ehdr *hdr, Elf64_Shdr *sechdrs, } nsyms = symtab->sh_size / sizeof(Elf64_Sym); - chains = kmalloc(nsyms * sizeof(struct got_entry), GFP_KERNEL); - memset(chains, 0, nsyms * sizeof(struct got_entry)); + chains = kcalloc(nsyms, sizeof(struct got_entry), GFP_KERNEL); got->sh_size = 0; got->sh_addralign = 8; diff --git a/arch/alpha/kernel/vmlinux.lds.S b/arch/alpha/kernel/vmlinux.lds.S index 449e76f118d..fe13daa5cb2 100644 --- a/arch/alpha/kernel/vmlinux.lds.S +++ b/arch/alpha/kernel/vmlinux.lds.S @@ -3,7 +3,7 @@ OUTPUT_FORMAT("elf64-alpha") OUTPUT_ARCH(alpha) ENTRY(__start) -PHDRS { kernel PT_LOAD ; } +PHDRS { kernel PT_LOAD; note PT_NOTE; } jiffies = jiffies_64; SECTIONS { @@ -28,6 +28,9 @@ SECTIONS __ex_table : { *(__ex_table) } __stop___ex_table = .; + NOTES :kernel :note + .dummy : { *(.dummy) } :kernel + RODATA /* Will be freed after init */ @@ -69,10 +72,7 @@ SECTIONS . = ALIGN(8); SECURITY_INIT - . = ALIGN(8192); - __per_cpu_start = .; - .data.percpu : { *(.data.percpu) } - __per_cpu_end = .; + PERCPU(8192) . = ALIGN(2*8192); __init_end = .; diff --git a/arch/alpha/mm/fault.c b/arch/alpha/mm/fault.c index f5862792a16..a0e18da594d 100644 --- a/arch/alpha/mm/fault.c +++ b/arch/alpha/mm/fault.c @@ -148,21 +148,17 @@ do_page_fault(unsigned long address, unsigned long mmcsr, the fault. */ fault = handle_mm_fault(mm, vma, address, cause > 0); up_read(&mm->mmap_sem); - - switch (fault) { - case VM_FAULT_MINOR: - current->min_flt++; - break; - case VM_FAULT_MAJOR: - current->maj_flt++; - break; - case VM_FAULT_SIGBUS: - goto do_sigbus; - case VM_FAULT_OOM: - goto out_of_memory; - default: + if (unlikely(fault & VM_FAULT_ERROR)) { + if (fault & VM_FAULT_OOM) + goto out_of_memory; + else if (fault & VM_FAULT_SIGBUS) + goto do_sigbus; BUG(); } + if (fault & VM_FAULT_MAJOR) + current->maj_flt++; + else + current->min_flt++; return; /* Something tried to access memory that isn't in our memory map. diff --git a/arch/arm/kernel/vmlinux.lds.S b/arch/arm/kernel/vmlinux.lds.S index 2b7a8f5d8cf..5ff5406666b 100644 --- a/arch/arm/kernel/vmlinux.lds.S +++ b/arch/arm/kernel/vmlinux.lds.S @@ -66,6 +66,7 @@ SECTIONS . = ALIGN(4096); __per_cpu_start = .; *(.data.percpu) + *(.data.percpu.shared_aligned) __per_cpu_end = .; #ifndef CONFIG_XIP_KERNEL __init_begin = _stext; diff --git a/arch/arm/mach-iop13xx/pci.c b/arch/arm/mach-iop13xx/pci.c index 9d63d7f260c..99d94cb1baf 100644 --- a/arch/arm/mach-iop13xx/pci.c +++ b/arch/arm/mach-iop13xx/pci.c @@ -1002,11 +1002,10 @@ int iop13xx_pci_setup(int nr, struct pci_sys_data *sys) if (nr > 1) return 0; - res = kmalloc(sizeof(struct resource) * 2, GFP_KERNEL); + res = kcalloc(2, sizeof(struct resource), GFP_KERNEL); if (!res) panic("PCI: unable to alloc resources"); - memset(res, 0, sizeof(struct resource) * 2); /* 'nr' assumptions: * ATUX is always 0 diff --git a/arch/arm/mm/fault.c b/arch/arm/mm/fault.c index 75d491448e4..c04124a095c 100644 --- a/arch/arm/mm/fault.c +++ b/arch/arm/mm/fault.c @@ -183,20 +183,20 @@ good_area: */ survive: fault = handle_mm_fault(mm, vma, addr & PAGE_MASK, fsr & (1 << 11)); - - /* - * Handle the "normal" cases first - successful and sigbus - */ - switch (fault) { - case VM_FAULT_MAJOR: + if (unlikely(fault & VM_FAULT_ERROR)) { + if (fault & VM_FAULT_OOM) + goto out_of_memory; + else if (fault & VM_FAULT_SIGBUS) + return fault; + BUG(); + } + if (fault & VM_FAULT_MAJOR) tsk->maj_flt++; - return fault; - case VM_FAULT_MINOR: + else tsk->min_flt++; - case VM_FAULT_SIGBUS: - return fault; - } + return fault; +out_of_memory: if (!is_init(tsk)) goto out; @@ -249,7 +249,7 @@ do_page_fault(unsigned long addr, unsigned int fsr, struct pt_regs *regs) /* * Handle the "normal" case first - VM_FAULT_MAJOR / VM_FAULT_MINOR */ - if (fault >= VM_FAULT_MINOR) + if (likely(!(fault & VM_FAULT_ERROR))) return 0; /* @@ -259,8 +259,7 @@ do_page_fault(unsigned long addr, unsigned int fsr, struct pt_regs *regs) if (!user_mode(regs)) goto no_context; - switch (fault) { - case VM_FAULT_OOM: + if (fault & VM_FAULT_OOM) { /* * We ran out of memory, or some other thing * happened to us that made us unable to handle @@ -269,17 +268,15 @@ do_page_fault(unsigned long addr, unsigned int fsr, struct pt_regs *regs) printk("VM: killing process %s\n", tsk->comm); do_exit(SIGKILL); return 0; - - case VM_FAULT_SIGBUS: + } + if (fault & VM_FAULT_SIGBUS) { /* * We had some memory, but were unable to * successfully fix up this page fault. */ sig = SIGBUS; code = BUS_ADRERR; - break; - - default: + } else { /* * Something tried to access memory that * isn't in our memory map.. @@ -287,7 +284,6 @@ do_page_fault(unsigned long addr, unsigned int fsr, struct pt_regs *regs) sig = SIGSEGV; code = fault == VM_FAULT_BADACCESS ? SEGV_ACCERR : SEGV_MAPERR; - break; } __do_user_fault(tsk, addr, fsr, sig, code, regs); diff --git a/arch/arm26/mm/fault.c b/arch/arm26/mm/fault.c index 93c0cee0fb5..dec638a0c8d 100644 --- a/arch/arm26/mm/fault.c +++ b/arch/arm26/mm/fault.c @@ -170,20 +170,20 @@ good_area: */ survive: fault = handle_mm_fault(mm, vma, addr & PAGE_MASK, DO_COW(fsr)); - - /* - * Handle the "normal" cases first - successful and sigbus - */ - switch (fault) { - case VM_FAULT_MAJOR: + if (unlikely(fault & VM_FAULT_ERROR)) { + if (fault & VM_FAULT_OOM) + goto out_of_memory; + else if (fault & VM_FAULT_SIGBUS) + return fault; + BUG(); + } + if (fault & VM_FAULT_MAJOR) tsk->maj_flt++; - return fault; - case VM_FAULT_MINOR: + else tsk->min_flt++; - case VM_FAULT_SIGBUS: - return fault; - } + return fault; +out_of_memory: fault = -3; /* out of memory */ if (!is_init(tsk)) goto out; @@ -225,13 +225,11 @@ int do_page_fault(unsigned long addr, unsigned int fsr, struct pt_regs *regs) /* * Handle the "normal" case first */ - switch (fault) { - case VM_FAULT_MINOR: - case VM_FAULT_MAJOR: + if (likely(!(fault & VM_FAULT_ERROR))) return 0; - case VM_FAULT_SIGBUS: + if (fault & VM_FAULT_SIGBUS) goto do_sigbus; - } + /* else VM_FAULT_OOM */ /* * If we are in kernel mode at this point, we diff --git a/arch/avr32/mm/fault.c b/arch/avr32/mm/fault.c index 4b2495285d9..ae2d2c593b2 100644 --- a/arch/avr32/mm/fault.c +++ b/arch/avr32/mm/fault.c @@ -64,6 +64,7 @@ asmlinkage void do_page_fault(unsigned long ecr, struct pt_regs *regs) int writeaccess; long signr; int code; + int fault; if (notify_page_fault(regs, ecr)) return; @@ -132,20 +133,18 @@ good_area: * fault. */ survive: - switch (handle_mm_fault(mm, vma, address, writeaccess)) { - case VM_FAULT_MINOR: - tsk->min_flt++; - break; - case VM_FAULT_MAJOR: - tsk->maj_flt++; - break; - case VM_FAULT_SIGBUS: - goto do_sigbus; - case VM_FAULT_OOM: - goto out_of_memory; - default: + fault = handle_mm_fault(mm, vma, address, writeaccess); + if (unlikely(fault & VM_FAULT_ERROR)) { + if (fault & VM_FAULT_OOM) + goto out_of_memory; + else if (fault & VM_FAULT_SIGBUS) + goto do_sigbus; BUG(); } + if (fault & VM_FAULT_MAJOR) + tsk->maj_flt++; + else + tsk->min_flt++; up_read(&mm->mmap_sem); return; diff --git a/arch/blackfin/mm/blackfin_sram.c b/arch/blackfin/mm/blackfin_sram.c index 16c6169ed01..b99ea883cd2 100644 --- a/arch/blackfin/mm/blackfin_sram.c +++ b/arch/blackfin/mm/blackfin_sram.c @@ -521,10 +521,9 @@ void *sram_alloc_with_lsl(size_t size, unsigned long flags) struct sram_list_struct *lsl = NULL; struct mm_struct *mm = current->mm; - lsl = kmalloc(sizeof(struct sram_list_struct), GFP_KERNEL); + lsl = kzalloc(sizeof(struct sram_list_struct), GFP_KERNEL); if (!lsl) return NULL; - memset(lsl, 0, sizeof(*lsl)); if (flags & L1_INST_SRAM) addr = l1_inst_sram_alloc(size); diff --git a/arch/cris/arch-v10/drivers/pcf8563.c b/arch/cris/arch-v10/drivers/pcf8563.c index d47cfbf98d6..1de0026bb94 100644 --- a/arch/cris/arch-v10/drivers/pcf8563.c +++ b/arch/cris/arch-v10/drivers/pcf8563.c @@ -180,9 +180,7 @@ err: void __exit pcf8563_exit(void) { - if (unregister_chrdev(PCF8563_MAJOR, DEVICE_NAME) < 0) { - printk(KERN_INFO "%s: Unable to unregister device.\n", PCF8563_NAME); - } + unregister_chrdev(PCF8563_MAJOR, DEVICE_NAME); } /* diff --git a/arch/cris/arch-v32/drivers/pcf8563.c b/arch/cris/arch-v32/drivers/pcf8563.c index fa8d50007e4..da479a14f83 100644 --- a/arch/cris/arch-v32/drivers/pcf8563.c +++ b/arch/cris/arch-v32/drivers/pcf8563.c @@ -193,9 +193,7 @@ err: void __exit pcf8563_exit(void) { - if (unregister_chrdev(PCF8563_MAJOR, DEVICE_NAME) < 0) { - printk(KERN_INFO "%s: Unable to unregister device.\n", PCF8563_NAME); - } + unregister_chrdev(PCF8563_MAJOR, DEVICE_NAME); } |