From: Andy Grover Date: Thu, 11 Mar 2010 13:50:04 +0000 (+0000) Subject: RDS: only put sockets that have seen congestion on the poll_waitq X-Git-Tag: v2.6.35-rc1~473^2~768 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b98ba52f96e7cdb4dbe2b06bced83d95d94c9d02;p=pandora-kernel.git RDS: only put sockets that have seen congestion on the poll_waitq rds_poll_waitq's listeners will be awoken if we receive a congestion notification. Bad performance may result because *all* polled sockets contend for this single lock. However, it should not be necessary to wake pollers when a congestion update arrives if they have never experienced congestion, and not putting these on the waitq will hopefully greatly reduce contention. Signed-off-by: Andy Grover Signed-off-by: David S. Miller --- Reading git-diff-tree failed