BMC/Intel-BMC/linux.git/arch/ia64/kernel/sys_ia64.c, branch dev

mm: use vm_unmapped_area() on ia64 architecture

2013-02-22T21:46:59+00:00

Update the ia64 arch_get_unmapped_area function to make use of vm_unmapped_area() instead of implementing a brute force search. Signed-off-by: Michel Lespinasse Acked-by: Rik van Riel Signed-off-by: Andrew Morton Signed-off-by: Tony Luck

ia64, sparc64: convert wrappers around do_mremap() to sys_mremap()

2012-05-31T01:04:56+00:00

they contain open-coded sys_mremap() Signed-off-by: Al Viro

Get rid of open-coding in ia64_brk()

2009-12-11T11:44:58+00:00

The comment in there used to be true, but these days do_brk() does the arch-specific check that covers what we open-coded here. So we can use sys_brk() just fine, only need to do force_successful_syscall_return() after it. See commit 3a459756810912d2c2bf188cef566af255936b4d - that's when the checks in do_brk() had been originally added. Acked-by: Hugh Dickins Signed-off-by: Al Viro

Unify sys_mmap*

2009-12-11T11:44:29+00:00

New helper - sys_mmap_pgoff(); switch syscalls to using it. Acked-by: David S. Miller Signed-off-by: Al Viro

[CVE-2009-0029] Remove attribute((weak)) from sys_pipe/sys_pipe2

2009-01-14T13:15:15+00:00

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

flag parameters: pipe

2008-07-24T17:47:28+00:00

This patch introduces the new syscall pipe2 which is like pipe but it also takes an additional parameter which takes a flag value. This patch implements the handling of O_CLOEXEC for the flag. I did not add support for the new syscall for the architectures which have a special sys_pipe implementation. I think the maintainers of those archs have the chance to go with the unified implementation but that's up to them. The implementation introduces do_pipe_flags. I did that instead of changing all callers of do_pipe because some of the callers are written in assembler. I would probably screw up changing the assembly code. To avoid breaking code do_pipe is now a small wrapper around do_pipe_flags. Once all callers are changed over to do_pipe_flags the old do_pipe function can be removed. The following test must be adjusted for architectures other than x86 and x86-64 and in case the syscall numbers changed. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ #include #include #include #include #ifndef __NR_pipe2 # ifdef __x86_64__ # define __NR_pipe2 293 # elif defined __i386__ # define __NR_pipe2 331 # else # error "need __NR_pipe2" # endif #endif int main (void) { int fd[2]; if (syscall (__NR_pipe2, fd, 0) != 0) { puts ("pipe2(0) failed"); return 1; } for (int i = 0; i < 2; ++i) { int coe = fcntl (fd[i], F_GETFD); if (coe == -1) { puts ("fcntl failed"); return 1; } if (coe & FD_CLOEXEC) { printf ("pipe2(0) set close-on-exit for fd[%d]\n", i); return 1; } } close (fd[0]); close (fd[1]); if (syscall (__NR_pipe2, fd, O_CLOEXEC) != 0) { puts ("pipe2(O_CLOEXEC) failed"); return 1; } for (int i = 0; i < 2; ++i) { int coe = fcntl (fd[i], F_GETFD); if (coe == -1) { puts ("fcntl failed"); return 1; } if ((coe & FD_CLOEXEC) == 0) { printf ("pipe2(O_CLOEXEC) does not set close-on-exit for fd[%d]\n", i); return 1; } } close (fd[0]); close (fd[1]); puts ("OK"); return 0; } ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Signed-off-by: Ulrich Drepper Acked-by: Davide Libenzi Cc: Michael Kerrisk Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

header cleaning: don't include smp_lock.h when not used

2007-05-08T18:15:07+00:00

Remove includes of where it is not used/needed. Suggested by Al Viro. Builds cleanly on x86_64, i386, alpha, ia64, powerpc, sparc, sparc64, and arm (all 59 defconfigs). Signed-off-by: Randy Dunlap Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

get_unmapped_area handles MAP_FIXED on ia64

2007-05-07T19:12:56+00:00

Handle MAP_FIXED in ia64 arch_get_unmapped_area and hugetlb_get_unmapped_area(), just call prepare_hugepage_range in the later and is_hugepage_only_range() in the former. Signed-off-by: Benjamin Herrenschmidt Acked-by: William Irwin Cc: "Luck, Tony" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] IA64,sparc: local DoS with corrupted ELFs

2006-09-08T15:40:46+00:00

This prevents cross-region mappings on IA64 and SPARC which could lead to system crash. They were correctly trapped for normal mmap() calls, but not for the kernel internal calls generated by executable loading. This code just moves the architecture-specific cross-region checks into an arch-specific "arch_mmap_check()" macro, and defines that for the architectures that needed it (ia64, sparc and sparc64). Architectures that don't have any special requirements can just ignore the new cross-region check, since the mmap() code will just notice on its own when the macro isn't defined. Signed-off-by: Pavel Emelianov Signed-off-by: Kirill Korotaev Acked-by: David Miller Signed-off-by: Greg Kroah-Hartman [ Cleaned up to not affect architectures that don't need it ] Signed-off-by: Linus Torvalds

Remove obsolete #include

2006-06-30T17:25:36+00:00

Signed-off-by: Jörn Engel Signed-off-by: Adrian Bunk