diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2016-08-04 19:37:59 -0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-08-04 19:37:59 -0400 |
| commit | 9e0243db6169d7d1fc39a087e78fed22a2fe7071 (patch) | |
| tree | 867da284894bc179e0d6f4df062e293fa5dfe85b /arch/um/kernel | |
| parent | b067c9045af4791a5836042f743d12477131f7b5 (diff) | |
| parent | 8a545f185145e3c09348cd74326268ecfc6715a3 (diff) | |
Merge branch 'for-linus-4.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml
Pull UML updates from Richard Weinberger:
"Beside of various fixes this also contains patches to enable features
such was Kcov, kmemleak and TRACE_IRQFLAGS_SUPPORT on UML"
* 'for-linus-4.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml:
hostfs: Freeing an ERR_PTR in hostfs_fill_sb_common()
um: Support kcov
um: Enable TRACE_IRQFLAGS_SUPPORT
um: Use asm-generic/irqflags.h
um: Fix possible deadlock in sig_handler_common()
um: Select HAVE_DEBUG_KMEMLEAK
um: Setup physical memory in setup_arch()
um: Eliminate null test after alloc_bootmem
Diffstat (limited to 'arch/um/kernel')
| -rw-r--r-- | arch/um/kernel/Makefile | 5 | ||||
| -rw-r--r-- | arch/um/kernel/initrd.c | 2 | ||||
| -rw-r--r-- | arch/um/kernel/um_arch.c | 8 |
3 files changed, 9 insertions, 6 deletions
diff --git a/arch/um/kernel/Makefile b/arch/um/kernel/Makefile index a6a5e42caaef..2f36d515762e 100644 --- a/arch/um/kernel/Makefile +++ b/arch/um/kernel/Makefile @@ -3,6 +3,11 @@ # Licensed under the GPL # +# Don't instrument UML-specific code; without this, we may crash when +# accessing the instrumentation buffer for the first time from the +# kernel. +KCOV_INSTRUMENT := n + CPPFLAGS_vmlinux.lds := -DSTART=$(LDS_START) \ -DELF_ARCH=$(LDS_ELF_ARCH) \ -DELF_FORMAT=$(LDS_ELF_FORMAT) \ diff --git a/arch/um/kernel/initrd.c b/arch/um/kernel/initrd.c index 55cead809b18..48bae81f8dca 100644 --- a/arch/um/kernel/initrd.c +++ b/arch/um/kernel/initrd.c @@ -37,8 +37,6 @@ static int __init read_initrd(void) } area = alloc_bootmem(size); - if (area == NULL) - return 0; if (load_initrd(initrd, area, size) == -1) return 0; diff --git a/arch/um/kernel/um_arch.c b/arch/um/kernel/um_arch.c index 16630e75f056..e8175a8aa22c 100644 --- a/arch/um/kernel/um_arch.c +++ b/arch/um/kernel/um_arch.c @@ -319,9 +319,6 @@ int __init linux_main(int argc, char **argv) start_vm = VMALLOC_START; - setup_physmem(uml_physmem, uml_reserved, physmem_size, highmem); - mem_total_pages(physmem_size, iomem_size, highmem); - virtmem_size = physmem_size; stack = (unsigned long) argv; stack &= ~(1024 * 1024 - 1); @@ -334,7 +331,6 @@ int __init linux_main(int argc, char **argv) printf("Kernel virtual memory size shrunk to %lu bytes\n", virtmem_size); - stack_protections((unsigned long) &init_thread_info); os_flush_stdout(); return start_uml(); @@ -342,6 +338,10 @@ int __init linux_main(int argc, char **argv) void __init setup_arch(char **cmdline_p) { + stack_protections((unsigned long) &init_thread_info); + setup_physmem(uml_physmem, uml_reserved, physmem_size, highmem); + mem_total_pages(physmem_size, iomem_size, highmem); + paging_init(); strlcpy(boot_command_line, command_line, COMMAND_LINE_SIZE); *cmdline_p = command_line; |