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authorDave Chinner <dchinner@redhat.com>2010-07-07 05:24:07 +0200
committerJens Axboe <jaxboe@fusionio.com>2010-08-07 18:24:25 +0200
commit028c2dd184c097809986684f2f0627eea5529fea (patch)
treef6eb9e30a24d73597e5ce2a65b4638e9d1947504 /fs/nfs
parentwriteback: Initial tracing support (diff)
downloadlinux-028c2dd184c097809986684f2f0627eea5529fea.tar.xz
linux-028c2dd184c097809986684f2f0627eea5529fea.zip
writeback: Add tracing to balance_dirty_pages
Tracing high level background writeback events is good, but it doesn't give the entire picture. Add visibility into write throttling to catch IO dispatched by foreground throttling of processing dirtying lots of pages. Signed-off-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
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