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authorLinus Torvalds <torvalds@linux-foundation.org>2012-01-06 22:00:12 (GMT)
committerLinus Torvalds <torvalds@linux-foundation.org>2012-01-06 22:00:12 (GMT)
commitcf3f33551b6d0acf8d21a53c9aa9cf8a0d73afa3 (patch)
treeb657e1b85befbcdff5b2ee39e5ff026d6342e694 /arch/x86/kernel/process_64.c
parent69734b644bf19f20d2989e1a8e5bf59c837ee5c1 (diff)
parent1affc46cffad9f2bc7c9ffec85726446903a58f9 (diff)
Merge branch 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
* 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86: Use "do { } while(0)" for empty lock_cmos()/unlock_cmos() macros x86: Use "do { } while(0)" for empty flush_tlb_fix_spurious_fault() macro x86, CPU: Drop superfluous get_cpu_cap() prototype arch/x86/mm/pageattr.c: Quiet sparse noise; local functions should be static arch/x86/kernel/ptrace.c: Quiet sparse noise x86: Use kmemdup() in copy_thread(), rather than duplicating its implementation x86: Replace the EVT_TO_HPET_DEV() macro with an inline function
Diffstat (limited to 'arch/x86/kernel/process_64.c')
-rw-r--r--arch/x86/kernel/process_64.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index 64e926c..9b9fe4a 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -299,13 +299,12 @@ int copy_thread(unsigned long clone_flags, unsigned long sp,
memset(p->thread.ptrace_bps, 0, sizeof(p->thread.ptrace_bps));
if (unlikely(test_tsk_thread_flag(me, TIF_IO_BITMAP))) {
- p->thread.io_bitmap_ptr = kmalloc(IO_BITMAP_BYTES, GFP_KERNEL);
+ p->thread.io_bitmap_ptr = kmemdup(me->thread.io_bitmap_ptr,
+ IO_BITMAP_BYTES, GFP_KERNEL);
if (!p->thread.io_bitmap_ptr) {
p->thread.io_bitmap_max = 0;
return -ENOMEM;
}
- memcpy(p->thread.io_bitmap_ptr, me->thread.io_bitmap_ptr,
- IO_BITMAP_BYTES);
set_tsk_thread_flag(p, TIF_IO_BITMAP);
}

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