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types: Update obsolete callback_head comment
authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>
Thu, 2 Feb 2017 19:40:15 +0000 (11:40 -0800)
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>
Wed, 19 Apr 2017 16:29:17 +0000 (09:29 -0700)
commit468d01bec544286bb5283f012b95b5b84636565b
tree637f95fd80be857eaf2e27f5383d4a4bfed3d020tree | snapshot
parenta5dd63efda3d07b50c0feda6fb4796bece237e61commit | diff
types: Update obsolete callback_head comment

The comment header for callback_head (and thus for rcu_head) states that
the bottom two bits of a pointer to these structures must be zero.  This
is obsolete:  The new requirement is that only the bottom bit need be
zero.  This commit therefore updates this comment.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
include/linux/types.h diff | blob | history
Linux kernel for KaRo TX COM modules