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dtrace: ignore any and all PFs during NOFAULT memory acceses
authorKris Van Hees <kris.van.hees@oracle.com>
Wed, 8 Jul 2015 03:38:27 +0000 (23:38 -0400)
committerNick Alcock <nick.alcock@oracle.com>
Tue, 21 Jul 2015 14:30:19 +0000 (15:30 +0100)
commite1e55379f2ed82eb16cebc95fcd95162285ea74e
tree8e34ce50c73e35b3e4fa96a065e5b022423cb752tree
parent50ccb82d1f49f76dfbfb0f6a3442ff7f65bf73f9commit | diff
dtrace: ignore any and all PFs during NOFAULT memory acceses

Previously, memory access from DTrace probe handling could be marked
as NOFAULT (ignore faults) and/or NOPF (ignore page faults).  However,
when safe memory access support is necessary, it is required that no
faults of any kind are allowed to disrupt the system.

Signed-off-by: Kris Van Hees <kris.van.hees@oracle.com>
Acked-by: Nick Alcock <nick.alcock@oracle.com>
arch/sparc/kernel/dtrace_util.c diff | blob | history
include/linux/dtrace_os.h diff | blob | history
kernel/dtrace/dtrace_os.c diff | blob | history
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