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authorPaul Mundt <lethal@linux-sh.org>2007-07-24 00:28:26 -0400
committerPaul Mundt <lethal@linux-sh.org>2007-07-24 00:28:26 -0400
commit8cf1a74305688c85fc8d23ab7432a0c447ee6413 (patch)
treed43af5f2515db35ef6a705e5929780f91d34e898 /mm/msync.c
parentf695baf2df9e0413d3521661070103711545207a (diff)
sh: Add kmap_coherent()/kunmap_coherent() interface for SH-4.
This wires up kmap_coherent() and kunmap_coherent() on SH-4, and moves away from the p3map_mutex and reserved P3 space, opting to use fixmaps for colouring instead. The copy_user_page()/clear_user_page() implementations are moved to this, which fixes the nasty blowups with spinlock debugging as a result of having some of these calls nested under the page table lock. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'mm/msync.c')
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