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ext4: address scalability issue by removing extent cache statistics
authorTheodore Ts'o <tytso@mit.edu>
Mon, 16 Apr 2012 16:16:20 +0000 (12:16 -0400)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sun, 22 Apr 2012 22:30:59 +0000 (15:30 -0700)
commit 9cd70b347e9761ea2d2ac3d758c529a48a8193e6 upstream.

Andi Kleen and Tim Chen have reported that under certain circumstances
the extent cache statistics are causing scalability problems due to
cache line bounces.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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