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| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2008-08-08 16:21:02 -0400 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2008-08-08 16:21:02 -0400 |
| commit | e4ddcb0a6bf04d53ce77b4eb87bbbb32c4261d11 (patch) | |
| tree | d27d2fea50a384d97aa2d0cf5c8657c916f761d4 /lib/iommu-helper.c | |
| parent | f2afa7711f8585ffc088ba538b9a510e0d5dca12 (diff) | |
| parent | 6e86841d05f371b5b9b86ce76c02aaee83352298 (diff) | |
| download | kernel-crypto-e4ddcb0a6bf04d53ce77b4eb87bbbb32c4261d11.tar.gz kernel-crypto-e4ddcb0a6bf04d53ce77b4eb87bbbb32c4261d11.tar.xz kernel-crypto-e4ddcb0a6bf04d53ce77b4eb87bbbb32c4261d11.zip | |
Merge commit 'v2.6.27-rc1' into for-linus
Diffstat (limited to 'lib/iommu-helper.c')
| -rw-r--r-- | lib/iommu-helper.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/lib/iommu-helper.c b/lib/iommu-helper.c index a3b8d4c3f77..889ddce2021 100644 --- a/lib/iommu-helper.c +++ b/lib/iommu-helper.c @@ -80,3 +80,11 @@ void iommu_area_free(unsigned long *map, unsigned long start, unsigned int nr) } } EXPORT_SYMBOL(iommu_area_free); + +unsigned long iommu_num_pages(unsigned long addr, unsigned long len) +{ + unsigned long size = roundup((addr & ~PAGE_MASK) + len, PAGE_SIZE); + + return size >> PAGE_SHIFT; +} +EXPORT_SYMBOL(iommu_num_pages); |