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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2012-03-01 18:14:45 +1100
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2012-03-09 10:55:12 +1100
commit9be72573a80648866ed0045db22d97c6e160a540 (patch)
tree5fc692504504dfbcce47489877481d3bd465ccd7 /scripts/docproc.c
parent9f2f79e3a3c19ae745d0439d6e0eed31df28de3c (diff)
powerpc: Add support for page fault retry and fatal signals
Other architectures such as x86 and ARM have been growing new support for features like retrying page faults after dropping the mm semaphore to break contention, or being able to return from a stuck page fault when a SIGKILL is pending. This refactors our implementation of do_page_fault() to move the error handling out of line in a way similar to x86 and adds support for those two features. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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