[PATCH] x86_64: Fix a small missing schedule race
Could lead to a lost reschedule event when the process already rescheduled on exception exit, and needs it again while still being in the kernel. Unlikely case though. Also remove one redundant cli in another entry.S path. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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@ -284,6 +284,7 @@ int_careful:
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pushq %rdi
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pushq %rdi
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call schedule
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call schedule
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popq %rdi
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popq %rdi
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cli
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jmp int_with_check
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jmp int_with_check
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/* handle signals and tracing -- both require a full stack frame */
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/* handle signals and tracing -- both require a full stack frame */
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@ -453,7 +454,6 @@ retint_check:
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andl %edi,%edx
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andl %edi,%edx
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jnz retint_careful
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jnz retint_careful
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retint_swapgs:
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retint_swapgs:
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cli
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swapgs
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swapgs
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retint_restore_args:
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retint_restore_args:
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cli
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cli
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