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CVS commit: src/sys/uvm

Module Name:    src
Committed By:   maxv
Date:           Wed Jul 27 16:45:00 UTC 2016

Modified Files:
        src/sys/uvm: uvm_km.c

Log Message:
Use UVM_PROT_ALL only if UVM_KMF_EXEC is given as argument. Otherwise, if
UVM_KMF_PAGEABLE is also given as argument, only the VA is allocated and
UVM waits for the page to fault before kentering it. When kentering it, it
will use the UVM_PROT_ flag that was passed to uvm_map; which means that it
will kenter it as RWX.

With this change, the number of RWX pages in the amd64 kernel reaches
strictly zero.

To generate a diff of this commit:
cvs rdiff -u -r1.140 -r1.141 src/sys/uvm/uvm_km.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

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