[PATCH] lightweight robust futexes updates 2
futex.h updates: - get rid of FUTEX_OWNER_PENDING - it's not used - reduce ROBUST_LIST_LIMIT to a saner value Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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@ -79,22 +79,16 @@ struct robust_list_head {
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*/
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#define FUTEX_OWNER_DIED 0x40000000
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/*
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* Reserved bit:
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*/
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#define FUTEX_OWNER_PENDING 0x20000000
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/*
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* The rest of the robust-futex field is for the TID:
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*/
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#define FUTEX_TID_MASK 0x1fffffff
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#define FUTEX_TID_MASK 0x3fffffff
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/*
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* A limit of one million locks held per thread (!) ought to be enough
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* for some time. This also protects against a deliberately circular
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* list. Not worth introducing an rlimit for this:
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* This limit protects against a deliberately circular list.
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* (Not worth introducing an rlimit for it)
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*/
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#define ROBUST_LIST_LIMIT 1048576
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#define ROBUST_LIST_LIMIT 2048
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long do_futex(unsigned long uaddr, int op, int val,
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unsigned long timeout, unsigned long uaddr2, int val2,
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