diff options
| author | blogic <blogic@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2012-01-17 11:23:11 +0000 |
|---|---|---|
| committer | blogic <blogic@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2012-01-17 11:23:11 +0000 |
| commit | 03810204dcdd5c4bc9ee3aff100f27bff59eac8c (patch) | |
| tree | f4364900a198534942330354141f0de06ad47261 /target/linux/at91/patches/600-usb_vbus_active_high.patch | |
| parent | 34abf48cb85fa311303e2710387584b9c0edab72 (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
Diffstat (limited to 'target/linux/at91/patches/600-usb_vbus_active_high.patch')
0 files changed, 0 insertions, 0 deletions