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authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>2007-10-16 23:26:04 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-17 08:42:46 -0700
commit97b430320ce7c95f0d5587c5ecc8f6a9d0c698e9 (patch)
tree3f805b4351c2c4ce68b8de869320f2afc9a805d5 /include/video/maxinefb.h
parentf6b450d489f2fb4e909447beacad64edb8aa0cda (diff)
Immunize rcu_dereference() against crazy compiler writers
Turns out that compiler writers are a bit more aggressive about optimizing than one might expect. This patch prevents a number of such optimizations from messing up rcu_deference(). This is not merely a theoretical problem, as evidenced by the rmb() in mce_log(). Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Ingo Molnar <mingo@elte.hu> Acked-by: Josh Triplett <josh@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/video/maxinefb.h')
0 files changed, 0 insertions, 0 deletions