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authorImre Deak <imre.deak@intel.com>2013-02-27 17:02:56 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2013-02-27 19:10:10 -0800
commita321e91b6d73ed011ffceed384c40d2785cf723b (patch)
tree525598b796028211e615676f5e3182c630f992f1 /lib/gcd.c
parent5d96bf4d928c883635774d0aba1773f275de055c (diff)
downloadop-kernel-dev-a321e91b6d73ed011ffceed384c40d2785cf723b.zip
op-kernel-dev-a321e91b6d73ed011ffceed384c40d2785cf723b.tar.gz
lib/scatterlist: add simple page iterator
Add an iterator to walk through a scatter list a page at a time starting at a specific page offset. As opposed to the mapping iterator this is meant to be small, performing well even in simple loops like collecting all pages on the scatterlist into an array or setting up an iommu table based on the pages' DMA address. Signed-off-by: Imre Deak <imre.deak@intel.com> Cc: Maxim Levitsky <maximlevitsky@gmail.com> Cc: Tejun Heo <tj@kernel.org> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Tested-by: Stephen Warren <swarren@wwwdotorg.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'lib/gcd.c')
0 files changed, 0 insertions, 0 deletions
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