x86/idt: Simplify alloc_intr_gate()
authorThomas Gleixner <tglx@linutronix.de>
Mon, 28 Aug 2017 06:47:58 +0000 (08:47 +0200)
committerIngo Molnar <mingo@kernel.org>
Tue, 29 Aug 2017 10:07:28 +0000 (12:07 +0200)
commit4447ac1195a845b18f2f427686f116ab77c5b268
treed92c01ac436ade4fcddf7a7aa77ecd7f4c026272
parentdb18da78f9a8bbab1bdc5968ba47ace788b5061f
x86/idt: Simplify alloc_intr_gate()

The only users of alloc_intr_gate() are hypervisors, which both check the
used_vectors bitmap whether they have allocated the gate already. Move that
check into alloc_intr_gate() and simplify the users.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Juergen Gross <jgross@suse.com>
Reviewed-by: K. Y. Srinivasan <kys@microsoft.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephen Hemminger <sthemmin@microsoft.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/20170828064959.580830286@linutronix.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
arch/x86/kernel/cpu/mshyperv.c
arch/x86/kernel/idt.c
drivers/xen/events/events_base.c