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authorIngo Molnar <mingo@kernel.org>2012-06-11 10:30:23 +0200
committerIngo Molnar <mingo@kernel.org>2012-06-11 10:30:23 +0200
commit4a1e001d2bb75c47a9cdbbfb66ae51daff1ddcba (patch)
tree6d6e968a087b7a26b3a04af1ef94149607b64358 /mm
parentmemblock: Document memblock_is_region_{memory,reserved}() (diff)
parentrcu: Precompute RCU_FAST_NO_HZ timer offsets (diff)
downloadlinux-dev-4a1e001d2bb75c47a9cdbbfb66ae51daff1ddcba.tar.xz
linux-dev-4a1e001d2bb75c47a9cdbbfb66ae51daff1ddcba.zip
Merge branch 'rcu/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/urgent
Merge RCU fixes from Paul E. McKenney: " This series has four patches, the major point of which is to eliminate some slowdowns (including boot-time slowdowns) resulting from some RCU_FAST_NO_HZ changes. The issue with the changes is that posting timers from the idle loop has no effect if the CPU has entered dyntick-idle mode because the CPU has already computed its wakeup time, and posting a timer does not cause it to be recomputed. The short-term fix is for RCU to precompute the timeout value so that the CPU's calculation is correct. " Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'mm')
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