Hi Chris,
FYI, today I failed to build mason/for-linus tree as follows.
===============================================================================
...
/home/sat/src/linux-2.6/fs/btrfs/transaction.c: In function 'record_root_in_trans':
/home/sat/src/linux-2.6/fs/btrfs/transaction.c:293:3: error: implicit declaration of function 'smp_mb__before_atomic' [-Werror=implicit-function-declaration]
smp_mb__before_atomic();
^
/home/sat/src/linux-2.6/fs/btrfs/transaction.c: In function 'commit_fs_roots':
/home/sat/src/linux-2.6/fs/btrfs/transaction.c:1065:4: error: implicit declaration of function 'smp_mb__after_atomic' [-Werror=implicit-function-declaration]
smp_mb__after_atomic();
^
cc1: some warnings being treated as errors
...
===============================================================================
It can be solved by cherry-picking febdbfe.
===
commit febdbfe8a91ce0d11939d4940b592eb0dba8d663
Author: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Date: Thu Feb 6 18:16:07 2014 +0100
arch: Prepare for smp_mb__{before,after}_atomic()
Since the smp_mb__{before,after}*() ops are fundamentally dependent on
how an arch can implement atomics it doesn't make sense to have 3
variants of them. They must all be the same.
===
Thanks,
Satoru
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