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authorLinas Vepstas <linas@linas.org>2005-11-03 18:50:04 -0600
committerPaul Mackerras <paulus@samba.org>2005-11-10 11:38:05 +1100
commit172ca9261800bacbbc7d320d9924d9b482dff8de (patch)
tree7abd6ddf1e6b9a147a0826c374f0d1bca80806d3 /net/ipv4
parent7f79da7accd63a6adb84f4602f66779f6a701e7b (diff)
[PATCH] ppc64: PCI error event dispatcher
12-eeh-event-dispatcher.patch ppc64: EEH Recovery dispatcher thread This patch adds a mechanism to create recovery threads when an EEH event is received. Since an EEH freeze state may be detected within an interrupt context, we need to get out of the interrupt context before starting recovery. This dispatcher does this in two steps: first, it uses a workqueue to get out, and then lanuches a kernel thread, so that the recovery routine can sleep for exteded periods without upseting the keventd. A kernel thread is created with each EEH event, rather than having one long-running daemon started at boot time. This is because it is anticipated that EEH events will be very rare (very very rare, ideally) and so its pointless to cluter the process tables with a daemon that will almost never run. Signed-off-by: Linas Vepstas <linas@austin.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
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