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authorKees Cook <keescook@chromium.org>2017-07-01 11:01:29 -0700
committerIngo Molnar <mingo@kernel.org>2017-07-02 11:24:36 +0200
commit5d6dec6fba38c3e2d408df108bb92ef4ac201f18 (patch)
tree55ec5ad38498adac14d05c4a41781113ea8e4f8f /kernel/locking
parentfd25d19f6b8da315332bb75936605fb45d3ea981 (diff)
locking/refcount: Remove the half-implemented refcount_sub() API
CONFIG_REFCOUNT_FULL=y (correctly) does not provide a refcount_sub(), which should not be part of proper refcount design patterns. Remove the erroneous extern and the later !CONFIG_REFCOUNT_FULL accidental implementation. Signed-off-by: Kees Cook <keescook@chromium.org> Cc: Elena Reshetova <elena.reshetova@intel.com> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Fixes: 29dee3c03abc ("locking/refcounts: Out-of-line everything") Link: http://lkml.kernel.org/r/20170701180129.GA17405@beast Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/locking')
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