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| author |   Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2015-04-21 09:12:13 -0700 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2015-05-27 12:59:05 -0700 |
| commit | 47d631af58bb9b2f2dd3d0da8c98a79a5e75c738 (patch) | |
| tree | 7472330c70684ac02140d2f3796b042b53a4f6dd /block/bounce.c | |
| parent | rcu: Make RCU able to tolerate undefined CONFIG_RCU_FANOUT (diff) | |
| download | linux-dev-47d631af58bb9b2f2dd3d0da8c98a79a5e75c738.tar.xz linux-dev-47d631af58bb9b2f2dd3d0da8c98a79a5e75c738.zip | |
rcu: Make RCU able to tolerate undefined CONFIG_RCU_FANOUT_LEAF
This commit introduces an RCU_FANOUT_LEAF C-preprocessor macro so
that RCU will build even when CONFIG_RCU_FANOUT_LEAF is undefined.
The RCU_FANOUT_LEAF macro is set to the value of CONFIG_RCU_FANOUT_LEAF
when defined, otherwise it is set to 32 for 32-bit systems and 64 for
64-bit systems. This commit then makes CONFIG_RCU_FANOUT_LEAF depend
on CONFIG_RCU_EXPERT, so that Kconfig users won't be asked about
CONFIG_RCU_FANOUT_LEAF unless they want to be.
Reported-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Pranith Kumar <bobby.prani@gmail.com>
Diffstat (limited to 'block/bounce.c')
0 files changed, 0 insertions, 0 deletions