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authorBrian King <brking@linux.vnet.ibm.com>2009-03-20 20:44:35 (GMT)
committerJames Bottomley <James.Bottomley@HansenPartnership.com>2009-04-03 14:22:42 (GMT)
commit039a08981a49e05f09db969cdd3f38f05a5df46f (patch)
treeb7ba49c8740a97ea4be7c7d99445ec3a224f45a7 /ipc
parent8fe74cf053de7ad2124a894996f84fa890a81093 (diff)
downloadlinux-039a08981a49e05f09db969cdd3f38f05a5df46f.tar.xz
[SCSI] ibmvfc: Fix dropped interrupts
This patch fixes a problem of possible dropped interrupts. Currently, the ibmvfc driver has a race condition where after ibmvfc_interrupt gets run, the platform code clears the interrupt. This can result in lost interrupts and, in worst case scenarios, result in command timeouts. Fix this by implementing a tasklet similar to what the ibmvscsi driver does so that interrupt processing is no longer done in the actual interrupt handler, which eliminates the race. Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'ipc')
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