Ryan Stone 92a15f946b Add missing M_NOWAIT flag ... The LinuxKPI linux_dma code calls PCTRIE_INSERT with a mutex held, but does not set M_NOWAIT when allocating nodes, leading to a potential panic. All of this code can handle an allocation failure here, so prefer an allocation failure to sleeping on memory. Also fix a related case where NOWAIT/WAITOK was not specified. In this case it's not clear whether sleeping is allowed so be conservative and assume not. There are a lot of other paths in this code that can fail due to a lack of memory anyway. Differential Revision: https://reviews.freebsd.org/D22127 Reviewed by: imp Sponsored by: Dell EMC Isilon MFC After: 1 week		2019-10-23 17:20:20 +00:00
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common	Add missing M_NOWAIT flag	2019-10-23 17:20:20 +00:00