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rcu: Remove kfree_rcu() special casing and lazy-callback handling

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This commit removes kfree_rcu() special-casing and the lazy-callback
handling from Tree RCU.  It moves some of this special casing to Tiny RCU,
the removal of which will be the subject of later commits.

This results in a nice negative delta.

Suggested-by: Paul E. McKenney <paulmck@linux.ibm.com>
Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
[ paulmck: Add slab.h #include, thanks to kbuild test robot <lkp@intel.com>. ]
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
This commit is contained in:
Joel Fernandes (Google) 2019-08-30 12:36:32 -04:00 • committed by Paul E. McKenney
parent e99637becb
commit 77a40f9703
12 changed files with 90 additions and 159 deletions
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2
include/linux/rcu_segcblist.h
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@ -22,7 +22,6 @@ struct rcu_cblist {
struct rcu_head *head;
struct rcu_head **tail;
long len;
long len_lazy;
};
#define RCU_CBLIST_INITIALIZER(n) { .head = NULL, .tail = &n.head }
@ -73,7 +72,6 @@ struct rcu_segcblist {
#else
long len;
#endif
long len_lazy;
u8 enabled;
u8 offloaded;
};