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authorMingming Cao <cmm@us.ibm.com>2008-10-09 12:50:59 -0400
committerTheodore Ts'o <tytso@mit.edu>2008-10-09 12:50:59 -0400
commit1f7c14c62ce63805f9574664a6c6de3633d4a354 (patch)
tree68f9f5399bc64bf7fe87dae16d8cc287717208bf /.gitignore
parent3fa8749e584b55f1180411ab1b51117190bac1e5 (diff)
downloadlinux-1f7c14c62ce63805f9574664a6c6de3633d4a354.tar.bz2
percpu counter: clean up percpu_counter_sum_and_set()
percpu_counter_sum_and_set() and percpu_counter_sum() is the same except the former updates the global counter after accounting. Since we are taking the fbc->lock to calculate the precise value of the counter in percpu_counter_sum() anyway, it should simply set fbc->count too, as the percpu_counter_sum_and_set() does. This patch merges these two interfaces into one. Signed-off-by: Mingming Cao <cmm@us.ibm.com> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: <linux-ext4@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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