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x86/ldt: use vfree_atomic() to free ldt entries
vfree() is going to use sleeping lock. free_ldt_struct() may be called with disabled preemption, therefore we must use vfree_atomic() here. E.g. call trace: vfree() free_ldt_struct() destroy_context_ldt() __mmdrop() finish_task_switch() schedule_tail() ret_from_fork() Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Andrey Ryabinin <[email protected]> Signed-off-by: Christoph Hellwig <[email protected]> Cc: Joel Fernandes <[email protected]> Cc: Jisheng Zhang <[email protected]> Cc: Chris Wilson <[email protected]> Cc: John Dias <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: "H. Peter Anvin" <[email protected]> Cc: Ingo Molnar <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
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