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authorblogic <blogic@3c298f89-4303-0410-b956-a3cf2f4a3e73>2012-01-17 11:23:11 +0000
committerblogic <blogic@3c298f89-4303-0410-b956-a3cf2f4a3e73>2012-01-17 11:23:11 +0000
commit03810204dcdd5c4bc9ee3aff100f27bff59eac8c (patch)
treef4364900a198534942330354141f0de06ad47261 /scripts
parent34abf48cb85fa311303e2710387584b9c0edab72 (diff)
ramips: Rework ramips_eth to not require irqsave locking anymore
Previously the tx housekeeping was done in a spin_lock_irqsave critical section which causes irqs to be disabled during that time. Since the housekeeping is already prepared to be scheduled as a tasklet process the housekeeping only in softirq context and revise the locking between the tx path and the housekeeping tasklet by using a normal spin_lock which in most situations will be a NOP anyway. This makes sure that interrupts are only disabled for a short time since in the worst case the housekeeping might have to free up to 256 skbs. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> git-svn-id: svn://svn.openwrt.org/openwrt/trunk@29762 3c298f89-4303-0410-b956-a3cf2f4a3e73
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