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Commit cced4022 authored by Thomas Meyer's avatar Thomas Meyer Committed by Ingo Molnar
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x86: Use kmemdup() in copy_thread(), rather than duplicating its implementation 



The semantic patch that makes this change is available
in scripts/coccinelle/api/memdup.cocci.

Signed-off-by: default avatarThomas Meyer <thomas@m3y3r.de>
Link: http://lkml.kernel.org/r/1321569820.1624.275.camel@localhost.localdomain


Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent 3f7787b3

arch/x86/kernel/process_64.c

+2 −3
Original line number Diff line number Diff line
@@ -293,13 +293,12 @@ 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);

	}